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- Reestructuración de ficheros y directorios general

Browse source 
- merge v0.01 --> Añadido fileselector
- Añadidas fuentes de Gem y Pure Data
- pix2jpg incluído en Gem. Archivos de construcción de Gem modificados.
- Añadido fichero ompiling.txt con instrucciones de compilación
This commit is contained in:
Santi Noreña 2013-02-04 18:00:17 +01:00
parent c9adfd020b
commit e85d191b46
3100 changed files with 775434 additions and 3073 deletions
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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_check_gl.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_GL
#
# DESCRIPTION
#
# Check for an OpenGL implementation. If GL is found, the required
# compiler and linker flags are included in the output variables
# "GL_CFLAGS" and "GL_LIBS", respectively. If no usable GL implementation
# is found, "no_gl" is set to "yes".
#
# If the header "GL/gl.h" is found, "HAVE_GL_GL_H" is defined. If the
# header "OpenGL/gl.h" is found, HAVE_OPENGL_GL_H is defined. These
# preprocessor definitions may not be mutually exclusive.
#
# LICENSE
#
# Copyright (c) 2009 Braden McDaniel <braden@endoframe.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 9
AC_DEFUN([AX_CHECK_GL],
[AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_PATH_X])dnl
AC_REQUIRE([AX_PTHREAD])dnl
AC_LANG_PUSH([C])
AX_COMPILER_VENDOR
AS_IF([test X$ax_cv_c_compiler_vendor != Xmicrosoft],
[GL_CFLAGS="${PTHREAD_CFLAGS}"; GL_LIBS="${PTHREAD_LIBS} -lm"])
#
# Use x_includes and x_libraries if they have been set (presumably by
# AC_PATH_X).
#
AS_IF([test "X$no_x" != "Xyes"],
[AS_IF([test -n "$x_includes"],
[GL_CFLAGS="-I${x_includes} ${GL_CFLAGS}"])]
AS_IF([test -n "$x_libraries"],
[GL_LIBS="-L${x_libraries} -lX11 ${GL_LIBS}"]))
ax_save_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
AC_CHECK_HEADERS([GL/gl.h OpenGL/gl.h])
CPPFLAGS="${ax_save_CPPFLAGS}"
AC_CHECK_HEADERS([windows.h])
m4_define([AX_CHECK_GL_PROGRAM],
[AC_LANG_PROGRAM([[
# if defined(HAVE_WINDOWS_H) && defined(_WIN32)
# include <windows.h>
# endif
# ifdef HAVE_GL_GL_H
# include <GL/gl.h>
# elif defined(HAVE_OPENGL_GL_H)
# include <OpenGL/gl.h>
# else
# error no gl.h
# endif]],
[[glBegin(0)]])])
AC_CACHE_CHECK([for OpenGL library], [ax_cv_check_gl_libgl],
[ax_cv_check_gl_libgl="no"
case $host_cpu in
x86_64) ax_check_gl_libdir=lib64 ;;
*) ax_check_gl_libdir=lib ;;
esac
ax_save_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
ax_save_LIBS="${LIBS}"
LIBS=""
ax_check_libs="-lopengl32 -lGL"
for ax_lib in ${ax_check_libs}; do
AS_IF([test X$ax_compiler_ms = Xyes],
[ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`],
[ax_try_lib="${ax_lib}"])
LIBS="${ax_try_lib} ${GL_LIBS} ${ax_save_LIBS}"
AC_LINK_IFELSE([AX_CHECK_GL_PROGRAM],
[ax_cv_check_gl_libgl="${ax_try_lib}"; break],
[ax_check_gl_nvidia_flags="-L/usr/${ax_check_gl_libdir}/nvidia" LIBS="${ax_try_lib} ${ax_check_gl_nvidia_flags} ${GL_LIBS} ${ax_save_LIBS}"
AC_LINK_IFELSE([AX_CHECK_GL_PROGRAM],
[ax_cv_check_gl_libgl="${ax_try_lib} ${ax_check_gl_nvidia_flags}"; break],
[ax_check_gl_dylib_flag='-dylib_file /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib:/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib' LIBS="${ax_try_lib} ${ax_check_gl_dylib_flag} ${GL_LIBS} ${ax_save_LIBS}"
AC_LINK_IFELSE([AX_CHECK_GL_PROGRAM],
[ax_cv_check_gl_libgl="${ax_try_lib} ${ax_check_gl_dylib_flag}"; break])])])
done
AS_IF([test "X$ax_cv_check_gl_libgl" = Xno -a "X$no_x" = Xyes],
[LIBS='-framework OpenGL'
AC_LINK_IFELSE([AX_CHECK_GL_PROGRAM],
[ax_cv_check_gl_libgl="$LIBS"])])
LIBS=${ax_save_LIBS}
CPPFLAGS=${ax_save_CPPFLAGS}])
AS_IF([test "X$ax_cv_check_gl_libgl" = Xno],
[no_gl=yes; GL_CFLAGS=""; GL_LIBS=""],
[GL_LIBS="${ax_cv_check_gl_libgl} ${GL_LIBS}"])
AC_LANG_POP([C])
AC_SUBST([GL_CFLAGS])
AC_SUBST([GL_LIBS])
])dnl

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_check_glu.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_GLU
#
# DESCRIPTION
#
# Check for GLU. If GLU is found, the required preprocessor and linker
# flags are included in the output variables "GLU_CFLAGS" and "GLU_LIBS",
# respectively. If no GLU implementation is found, "no_glu" is set to
# "yes".
#
# If the header "GL/glu.h" is found, "HAVE_GL_GLU_H" is defined. If the
# header "OpenGL/glu.h" is found, HAVE_OPENGL_GLU_H is defined. These
# preprocessor definitions may not be mutually exclusive.
#
# Some implementations (in particular, some versions of Mac OS X) are
# known to treat the GLU tesselator callback function type as "GLvoid
# (*)(...)" rather than the standard "GLvoid (*)()". If the former
# condition is detected, this macro defines "HAVE_VARARGS_GLU_TESSCB".
#
# LICENSE
#
# Copyright (c) 2009 Braden McDaniel <braden@endoframe.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 8
AC_DEFUN([AX_CHECK_GLU],
[AC_REQUIRE([AX_CHECK_GL])dnl
AC_REQUIRE([AC_PROG_CXX])dnl
GLU_CFLAGS="${GL_CFLAGS}"
ax_save_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
AC_CHECK_HEADERS([GL/glu.h OpenGL/glu.h])
CPPFLAGS="${ax_save_CPPFLAGS}"
m4_define([AX_CHECK_GLU_PROGRAM],
[AC_LANG_PROGRAM([[
# if defined(HAVE_WINDOWS_H) && defined(_WIN32)
# include <windows.h>
# endif
# ifdef HAVE_GL_GLU_H
# include <GL/glu.h>
# elif defined(HAVE_OPENGL_GLU_H)
# include <OpenGL/glu.h>
# else
# error no glu.h
# endif]],
[[gluBeginCurve(0)]])])
AC_CACHE_CHECK([for OpenGL Utility library], [ax_cv_check_glu_libglu],
[ax_cv_check_glu_libglu="no"
ax_save_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}"
ax_save_LIBS="${LIBS}"
#
# First, check for the possibility that everything we need is already in
# GL_LIBS.
#
LIBS="${GL_LIBS} ${ax_save_LIBS}"
#
# libGLU typically links with libstdc++ on POSIX platforms.
# However, setting the language to C++ means that test program
# source is named "conftest.cc"; and Microsoft cl doesn't know what
# to do with such a file.
#
AC_LANG_PUSH([C++])
AS_IF([test X$ax_compiler_ms = Xyes],
[AC_LANG_PUSH([C])])
AC_LINK_IFELSE(
[AX_CHECK_GLU_PROGRAM],
[ax_cv_check_glu_libglu=yes],
[LIBS=""
ax_check_libs="-lglu32 -lGLU"
for ax_lib in ${ax_check_libs}; do
AS_IF([test X$ax_compiler_ms = Xyes],
[ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`],
[ax_try_lib="${ax_lib}"])
LIBS="${ax_try_lib} ${GL_LIBS} ${ax_save_LIBS}"
AC_LINK_IFELSE([AX_CHECK_GLU_PROGRAM],
[ax_cv_check_glu_libglu="${ax_try_lib}"; break])
done
])
AS_IF([test X$ax_compiler_ms = Xyes],
[AC_LANG_POP([C])])
AC_LANG_POP([C++])
LIBS=${ax_save_LIBS}
CPPFLAGS=${ax_save_CPPFLAGS}])
AS_IF([test "X$ax_cv_check_glu_libglu" = Xno],
[no_glu=yes; GLU_CFLAGS=""; GLU_LIBS=""],
[AS_IF([test "X$ax_cv_check_glu_libglu" = Xyes],
[GLU_LIBS="$GL_LIBS"],
[GLU_LIBS="${ax_cv_check_glu_libglu} ${GL_LIBS}"])])
AC_SUBST([GLU_CFLAGS])
AC_SUBST([GLU_LIBS])
#
# Some versions of Mac OS X include a broken interpretation of the GLU
# tesselation callback function signature.
#
AS_IF([test "X$ax_cv_check_glu_libglu" != Xno],
[AC_CACHE_CHECK([for varargs GLU tesselator callback function type],
[ax_cv_varargs_glu_tesscb],
[ax_cv_varargs_glu_tesscb=no
ax_save_CFLAGS="$CFLAGS"
CFLAGS="$GL_CFLAGS $CFLAGS"
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
# ifdef HAVE_GL_GLU_H
# include <GL/glu.h>
# else
# include <OpenGL/glu.h>
# endif]],
[[GLvoid (*func)(...); gluTessCallback(0, 0, func)]])],
[ax_cv_varargs_glu_tesscb=yes])
CFLAGS="$ax_save_CFLAGS"])
AS_IF([test X$ax_cv_varargs_glu_tesscb = Xyes],
[AC_DEFINE([HAVE_VARARGS_GLU_TESSCB], [1],
[Use nonstandard varargs form for the GLU tesselator callback])])])
])

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_check_glut.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CHECK_GLUT
#
# DESCRIPTION
#
# Check for GLUT. If GLUT is found, the required compiler and linker flags
# are included in the output variables "GLUT_CFLAGS" and "GLUT_LIBS",
# respectively. If GLUT is not found, "no_glut" is set to "yes".
#
# If the header "GL/glut.h" is found, "HAVE_GL_GLUT_H" is defined. If the
# header "GLUT/glut.h" is found, HAVE_GLUT_GLUT_H is defined. These
# preprocessor definitions may not be mutually exclusive.
#
# LICENSE
#
# Copyright (c) 2009 Braden McDaniel <braden@endoframe.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 8
AC_DEFUN([AX_CHECK_GLUT],
[AC_REQUIRE([AX_CHECK_GLU])dnl
AC_REQUIRE([AC_PATH_XTRA])dnl
ax_save_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${GLU_CFLAGS} ${CPPFLAGS}"
AC_CHECK_HEADERS([GL/glut.h GLUT/glut.h])
CPPFLAGS="${ax_save_CPPFLAGS}"
GLUT_CFLAGS=${GLU_CFLAGS}
GLUT_LIBS=${GLU_LIBS}
m4_define([AX_CHECK_GLUT_PROGRAM],
[AC_LANG_PROGRAM([[
# if HAVE_WINDOWS_H && defined(_WIN32)
# include <windows.h>
# endif
# ifdef HAVE_GL_GLUT_H
# include <GL/glut.h>
# elif defined(HAVE_GLUT_GLUT_H)
# include <GLUT/glut.h>
# else
# error no glut.h
# endif]],
[[glutMainLoop()]])])
#
# If X is present, assume GLUT depends on it.
#
AS_IF([test X$no_x != Xyes],
[GLUT_LIBS="${X_PRE_LIBS} -lXmu -lXi ${X_EXTRA_LIBS} ${GLUT_LIBS}"])
AC_CACHE_CHECK([for GLUT library], [ax_cv_check_glut_libglut],
[ax_cv_check_glut_libglut="no"
AC_LANG_PUSH(C)
ax_save_CPPFLAGS="${CPPFLAGS}"
CPPFLAGS="${GLUT_CFLAGS} ${CPPFLAGS}"
ax_save_LIBS="${LIBS}"
LIBS=""
ax_check_libs="-lglut32 -lglut"
for ax_lib in ${ax_check_libs}; do
AS_IF([test X$ax_compiler_ms = Xyes],
[ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`],
[ax_try_lib="${ax_lib}"])
LIBS="${ax_try_lib} ${GLUT_LIBS} ${ax_save_LIBS}"
AC_LINK_IFELSE([AX_CHECK_GLUT_PROGRAM],
[ax_cv_check_glut_libglut="${ax_try_lib}"; break])
done
AS_IF([test "X$ax_cv_check_glut_libglut" = Xno -a "X$no_x" = Xyes],
[LIBS='-framework GLUT'
AC_LINK_IFELSE([AX_CHECK_GLUT_PROGRAM],
[ax_cv_check_glut_libglut="$LIBS"])])
CPPFLAGS="${ax_save_CPPFLAGS}"
LIBS="${ax_save_LIBS}"
AC_LANG_POP(C)])
AS_IF([test "X$ax_cv_check_glut_libglut" = Xno],
[no_glut="yes"; GLUT_CFLAGS=""; GLUT_LIBS=""],
[GLUT_LIBS="${ax_cv_check_glut_libglut} ${GLUT_LIBS}"])
AC_SUBST([GLUT_CFLAGS])
AC_SUBST([GLUT_LIBS])
])dnl

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_compiler_vendor.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_COMPILER_VENDOR
#
# DESCRIPTION
#
# Determine the vendor of the C/C++ compiler, e.g., gnu, intel, ibm, sun,
# hp, borland, comeau, dec, cray, kai, lcc, metrowerks, sgi, microsoft,
# watcom, etc. The vendor is returned in the cache variable
# $ax_cv_c_compiler_vendor for C and $ax_cv_cxx_compiler_vendor for C++.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
# Copyright (c) 2008 Matteo Frigo
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 11
AC_DEFUN([AX_COMPILER_VENDOR],
[AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor,
[# note: don't check for gcc first since some other compilers define __GNUC__
vendors="intel: __ICC,__ECC,__INTEL_COMPILER
ibm: __xlc__,__xlC__,__IBMC__,__IBMCPP__
pathscale: __PATHCC__,__PATHSCALE__
clang: __clang__
gnu: __GNUC__
sun: __SUNPRO_C,__SUNPRO_CC
hp: __HP_cc,__HP_aCC
dec: __DECC,__DECCXX,__DECC_VER,__DECCXX_VER
borland: __BORLANDC__,__TURBOC__
comeau: __COMO__
cray: _CRAYC
kai: __KCC
lcc: __LCC__
sgi: __sgi,sgi
microsoft: _MSC_VER
metrowerks: __MWERKS__
watcom: __WATCOMC__
portland: __PGI
unknown: UNKNOWN"
for ventest in $vendors; do
case $ventest in
*:) vendor=$ventest; continue ;;
*) vencpp="defined("`echo $ventest | sed 's/,/) || defined(/g'`")" ;;
esac
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
#if !($vencpp)
thisisanerror;
#endif
])], [break])
done
ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=`echo $vendor | cut -d: -f1`
])
])

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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_pthread.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
# This macro figures out how to build C programs using POSIX threads. It
# sets the PTHREAD_LIBS output variable to the threads library and linker
# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
# flags that are needed. (The user can also force certain compiler
# flags/libs to be tested by setting these environment variables.)
#
# Also sets PTHREAD_CC to any special C compiler that is needed for
# multi-threaded programs (defaults to the value of CC otherwise). (This
# is necessary on AIX to use the special cc_r compiler alias.)
#
# NOTE: You are assumed to not only compile your program with these flags,
# but also link it with them as well. e.g. you should link with
# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
#
# If you are only building threads programs, you may wish to use these
# variables in your default LIBS, CFLAGS, and CC:
#
# LIBS="$PTHREAD_LIBS $LIBS"
# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# CC="$PTHREAD_CC"
#
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
#
# ACTION-IF-FOUND is a list of shell commands to run if a threads library
# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
# is not found. If ACTION-IF-FOUND is not specified, the default action
# will define HAVE_PTHREADS.
#
# Please let the authors know if this macro fails on any platform, or if
# you have any other suggestions or comments. This macro was based on work
# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
# Alejandro Forero Cuervo to the autoconf macro repository. We are also
# grateful for the helpful feedback of numerous users.
#
# LICENSE
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 7
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
AC_DEFUN([AX_PTHREAD], [
AC_REQUIRE([AC_CANONICAL_HOST])
AC_LANG_SAVE
AC_LANG_C
ax_pthread_ok=no
# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on True64 or Sequent).
# It gets checked for in the link test anyway.
# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with
CFLAGS=$PTHREAD_CFLAGS])
AC_TRY_LINK_FUNC(pthread_join, ax_pthread_ok=yes)
AC_MSG_RESULT($ax_pthread_ok)
if test x"$ax_pthread_ok" = xno; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
fi
# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).
# Create a list of thread flags to try. Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all, and "pthread-config"
# which is a program returning the flags for the Pth emulation library.
ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads
-mthreads pthread --thread-safe -mt pthread-config"
# The ordering *is* (sometimes) important. Some notes on the
# individual items follow:
# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
# other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
# doesn't hurt to check since this sometimes defines pthreads too;
# also defines -D_REENTRANT)
# ... -mt is also the pthreads flag for HP/aCC
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)
case "${host_cpu}-${host_os}" in
*solaris*)
# On Solaris (at least, for some versions), libc contains stubbed
# (non-functional) versions of the pthreads routines, so link-based
# tests will erroneously succeed. (We need to link with -pthreads/-mt/
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
# a function called by this macro, so we could check for that, but
# who knows whether they'll stub that too in a future libc.) So,
# we'll just look for -pthreads and -lpthread first:
ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
;;
*-darwin*)
acx_pthread_flags="-pthread $acx_pthread_flags"
;;
esac
if test x"$ax_pthread_ok" = xno; then
for flag in $ax_pthread_flags; do
case $flag in
none)
AC_MSG_CHECKING([whether pthreads work without any flags])
;;
-*)
AC_MSG_CHECKING([whether pthreads work with $flag])
PTHREAD_CFLAGS="$flag"
;;
pthread-config)
AC_CHECK_PROG(ax_pthread_config, pthread-config, yes, no)
if test x"$ax_pthread_config" = xno; then continue; fi
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config
--libs`"
;;
*)
AC_MSG_CHECKING([for the pthreads library -l$flag])
PTHREAD_LIBS="-l$flag"
;;
esac
save_LIBS="$LIBS"
save_CFLAGS="$CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
# need a special flag -Kthread to make this header compile.)
# We check for pthread_join because it is in -lpthread on IRIX
# while pthread_create is in libc. We check for pthread_attr_init
# due to DEC craziness with -lpthreads. We check for
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
AC_TRY_LINK([#include <pthread.h>
static void routine(void* a) {a=0;}
static void* start_routine(void* a) {return a;}],
[pthread_t th; pthread_attr_t attr;
pthread_join(th, 0);
pthread_attr_init(&attr);
pthread_cleanup_push(routine, 0);
pthread_create(&th,0,start_routine,0);
pthread_cleanup_pop(0); ],
[ax_pthread_ok=yes])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
AC_MSG_RESULT($ax_pthread_ok)
if test "x$ax_pthread_ok" = xyes; then
break;
fi
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
done
fi
# Various other checks:
if test "x$ax_pthread_ok" = xyes; then
save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
AC_MSG_CHECKING([for joinable pthread attribute])
attr_name=unknown
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
[attr_name=$attr; break])
done
AC_MSG_RESULT($attr_name)
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
[Define to necessary symbol if this constant
uses a non-standard name on your system.])
fi
AC_MSG_CHECKING([if more special flags are required for pthreads])
flag=no
case "${host_cpu}-${host_os}" in
*-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
*solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
esac
AC_MSG_RESULT(${flag})
if test "x$flag" != xno; then
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
# More AIX lossage: must compile with xlc_r or cc_r
if test x"$GCC" != xyes; then
AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
else
PTHREAD_CC=$CC
fi
else
PTHREAD_CC="$CC"
fi
AC_SUBST(PTHREAD_LIBS)
AC_SUBST(PTHREAD_CFLAGS)
AC_SUBST(PTHREAD_CC)
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$ax_pthread_ok" = xyes; then
ifelse([$1],,AC_DEFINE(HAVE_PTHREADS,1,[Define if you have POSIX threads
libraries and header files.]),[$1])
:
else
ax_pthread_ok=no
$2
fi
AC_LANG_RESTORE
])dnl AX_PTHREAD

506
Gem/m4/gem.m4 Normal file
View file

@ -0,0 +1,506 @@
dnl Copyright (C) 2005 IOhannes m zmölnig
dnl This file is free software; IOhannes m zmölnig
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# GEM_ARG_WITH(WITHARG, [TEXT], [FORCE])
# enables the "--with-WITHARG" flag; if FORCE is non-empty and no value is
# set by the user, the default value "yes" is assigned to with_WITHARG
# --------------------------------------------------------------
AC_DEFUN([GEM_ARG_WITH],
[
if test "x$with_ALL" = "xyes" && test "x${with_$1}" = "x"; then with_$1="yes"; fi
if test "x$with_ALL" = "xno" && test "x${with_$1}" = "x"; then with_$1="no"; fi
AC_ARG_WITH([$1],
AC_HELP_STRING([--without-$1], [disable $1-lib ($2)]),,[
if test "x$3" != "x"; then with_$1="yes"; fi
])
])# GEM_ARG_WITH
# inverse of GEM_ARG_WITH
AC_DEFUN([GEM_ARG_WITHOUT],
[AC_ARG_WITH([$1],
AC_HELP_STRING([--with-$1], [enable $1-lib ($2)]),,[
if test "x$3" = "xforce"; then with_$1="no"; fi
])
])# GEM_ARG_WITHOUT
# same as GEM_ARG_WITH but with "enable"
AC_DEFUN([GEM_ARG_ENABLE],
[AC_ARG_ENABLE([$1],
AC_HELP_STRING([--disable-$1], [disable $1 ($2)]),,[
if test "x$3" != "x"; then enable_$1="yes"; fi
])
])# GEM_ARG_ENABLE
# inverse of GEM_ARG_ENABLE
AC_DEFUN([GEM_ARG_DISABLE],
[AC_ARG_ENABLE([$1],
AC_HELP_STRING([--enable-$1], [enable $1 ($2)]),,[
if test "x$3" != "x"; then enable_$1="no"; fi
])
])# GEM_ARG_DISABLE
AC_DEFUN([GEM_TARGET], [
define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
AC_CONFIG_FILES([src/$1/Makefile])
AC_ARG_ENABLE([$1],
AC_HELP_STRING([--disable-$1], [disable $1-objects]),
[
if test "x$enableval" != "xno"; then
AC_MSG_RESULT([building Gem with $1-objects])
target_[]NAME="yes"
else
AC_MSG_RESULT([building Gem without $1-objects])
target_[]NAME="no"
fi
],
[
AC_MSG_RESULT([building Gem with $1-objects])
target_[]NAME="yes"
])
AM_CONDITIONAL(TARGET_[]NAME, [test "x$target_[]NAME" != "xno"])
undefine([NAME])
])# GEM_TARGET
AC_DEFUN([GEM_TARGET_DISABLED], [
define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
AC_CONFIG_FILES([src/$1/Makefile])
AC_ARG_ENABLE([$1],
AC_HELP_STRING([--enable-$1], [enable $1-objects]),
[
if test "x$enableval" != "xyes"; then
AC_MSG_RESULT([building Gem without $1-objects])
target_[]NAME="no"
else
AC_MSG_RESULT([building Gem with $1-objects])
target_[]NAME="yes"
fi
],
[
AC_MSG_RESULT([building Gem without $1-objects])
target_[]NAME="no"
])
AM_CONDITIONAL(TARGET_[]NAME, [test "x$target_[]NAME" != "xno"])
undefine([NAME])
])# GEM_TARGET_DISABLED
# GEM_CHECK_LIB(NAME, LIBRARY, FUNCTION, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND], [ADDITIONAL_LIBS], [HELP-TEXT], [DEFAULT-WITH_VALUE])
#
## this automatically adds the option "--without-NAME" to disable the checking for the library
## additionally it gives the options "--with-NAME-includes" and "--with-NAME-libs",
## to manually add searchpaths for the include-files and libraries
## the only check performed on these paths is whether they are real paths
AC_DEFUN([GEM_CHECK_LIB],
[
define([Name],[translit([$1],[./-+], [____])])
define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
AC_SUBST(GEM_LIB_[]NAME[]_CFLAGS)
AC_SUBST(GEM_LIB_[]NAME[]_LIBS)
AC_ARG_WITH([Name],
AC_HELP_STRING([--without-[]Name], [disable Name ($7)]))
AC_ARG_WITH([]Name-includes,
AC_HELP_STRING([--with-[]Name-includes=/path/to/[]Name/include/], [include path for Name]))
AC_ARG_WITH([]Name-libs,
AC_HELP_STRING([--with-[]Name-libs=/path/to/[]Name/lib/], [library path for Name]))
if test "x$with_[]Name" = "x"; then with_[]Name="$8"; fi
if test "x$with_ALL" = "xyes" && test "x$with_[]Name" = "x"; then with_[]Name="yes"; fi
if test "x$with_ALL" = "xno" && test "x$with_[]Name" = "x"; then with_[]Name="no"; fi
tmp_gem_check_lib_cppflags="$CPPFLAGS"
tmp_gem_check_lib_cflags="$CFLAGS"
tmp_gem_check_lib_cxxflags="$CXXFLAGS"
tmp_gem_check_lib_ldflags="$LDFLAGS"
tmp_gem_check_lib_libs="$LIBS"
if test x$with_[]Name = "xno"; then
have_[]Name="no (forced)"
else
if test -d "$with_[]Name[]_includes"; then
CFLAGS="-I$with_[]Name[]_includes $CFLAGS"
CPPFLAGS="-I$with_[]Name[]_includes $CPPFLAGS"
CXXFLAGS="-I$with_[]Name[]_includes $CXXFLAGS"
fi
if test -d "$with_[]Name[]_libs"; then
LIBS="-L$with_[]Name[]_libs $LIBS"
fi
AS_LITERAL_IF([$2],
[AS_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$2_$3])],
[AS_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$2''_$3])])dnl
## unset ac_Lib is possible
(unset ac_Lib) >/dev/null 2>&1 && unset ac_Lib
## 1st we check, whether pkg-config knows something about this package
dnl PKG_CHECK_MODULES(AS_TR_CPP(PKG_$1), $1,AS_VAR_SET(acLib)yes, AC_CHECK_LIB([$2],[$3],,,[$6]))
PKG_CHECK_MODULES(AS_TR_CPP(PKG_$1), $1,AS_VAR_SET(ac_Lib)yes,:)
if test "x$ac_Lib" != "xyes"; then
## pkg-config has failed
## check whether there is a ${1}-config lying around
AC_MSG_CHECKING([for $1-config])
gem_check_lib_pkgconfig_[]NAME=""
if test "x$1" != "x"; then
gem_check_lib_pkgconfig_[]NAME="$1"-config
if which -- "$gem_check_lib_pkgconfig_[]NAME" >/dev/null 2>&1; then
gem_check_lib_pkgconfig_[]NAME=`which "$1"-config`
AC_MSG_RESULT([yes])
else
gem_check_lib_pkgconfig_[]NAME=""
AC_MSG_RESULT([no])
fi
fi
if test "x$gem_check_lib_pkgconfig_[]NAME" != "x"; then
## fabulous, we have ${1}-config
## lets see what it reveals
## if PKG_<name>_CFLAGS is undefined, we try to get it from ${1}-config
if test "x$PKG_[]NAME[]_CFLAGS" = "x"; then
if $gem_check_lib_pkgconfig_[]NAME --cflags >/dev/null 2>&1; then
PKG_[]NAME[]_CFLAGS=$(${gem_check_lib_pkgconfig_[]NAME} --cflags)
PKG_CFLAGS="$PKG_[]NAME[]_CFLAGS $PKG_CFLAGS"
fi
fi
## if PKG_<name>_LIBS is undefined, we try to get it from ${1}-config
## we first try to get it via "--plugin-libs" (this is almost certainly what we want)
## if that fails we try to get it via "--libs"
if test "x$PKG_[]NAME[]_LIBS" = "x"; then
if $gem_check_lib_pkgconfig_[]NAME --plugin-libs >/dev/null 2>&1; then
PKG_[]NAME[]_LIBS=$(${gem_check_lib_pkgconfig_[]NAME} --plugin-libs)
else
if $gem_check_lib_pkgconfig_[]NAME --libs >/dev/null 2>&1; then
PKG_[]NAME[]_LIBS=$(${gem_check_lib_pkgconfig_[]NAME} --libs)
fi
fi
fi
fi
## if we still don't know about the libs, we finally fall back to AC_CHECK_LIB
if test "x${PKG_[]NAME[]_LIBS}" = "x"; then
AC_CHECK_LIB([$2],[$3],,,[$6])
PKG_[]NAME[]_LIBS="-l$2"
else
PKG_LIBS="${PKG_[]NAME[]_LIBS} ${PKG_LIBS}"
fi
fi
AS_IF([test "x$ac_Lib" != "xno"],
[
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1),[1], [$7])
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$2),[1], [$7])
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$3),[1], [Define to 1 if you have the `$3' function.])
GEM_LIB_[]NAME[]_CFLAGS=${PKG_[]NAME[]_CFLAGS}
GEM_LIB_[]NAME[]_LIBS=${PKG_[]NAME[]_LIBS}
dnl PKG_LIBS="$6 ${PKG_LIBS}"
have_[]Name="yes"
dnl turn of further checking for this package
with_[]Name="no"
[$4]
],[
have_[]Name="no"
[$5]
])
AS_VAR_POPDEF([ac_Lib])dnl
fi[]dnl
AM_CONDITIONAL(HAVE_LIB_[]NAME, [test "x${have_[]Name}" = "xyes"])
# restore original flags
CPPFLAGS="$tmp_gem_check_lib_cppflags"
CFLAGS="$tmp_gem_check_lib_cflags"
CXXFLAGS="$tmp_gem_check_lib_cxxflags"
LDFLAGS="$tmp_gem_check_lib_ldflags"
LIBS="$tmp_gem_check_lib_libs"
undefine([Name])
undefine([NAME])
])# GEM_CHECK_LIB
# GEM_CHECK_CXXFLAGS(ADDITIONAL-CXXFLAGS, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
#
# checks whether the $(CXX) compiler accepts the ADDITIONAL-CXXFLAGS
# if so, they are added to the CXXFLAGS
AC_DEFUN([GEM_CHECK_CXXFLAGS],
[
AC_MSG_CHECKING([whether compiler accepts "$1"])
cat > conftest.c++ << EOF
int main(){
return 0;
}
EOF
if $CXX $CPPFLAGS $CXXFLAGS -o conftest.o conftest.c++ [$1] > /dev/null 2>&1
then
AC_MSG_RESULT([yes])
CXXFLAGS="${CXXFLAGS} [$1]"
[$2]
else
AC_MSG_RESULT([no])
[$3]
fi
])# GEM_CHECK_CXXFLAGS
# GEM_CHECK_FRAMEWORK(FRAMEWORK, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
#
#
AC_DEFUN([GEM_CHECK_FRAMEWORK],
[
define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
AC_SUBST(GEM_FRAMEWORK_[]NAME[])
AC_MSG_CHECKING([for "$1"-framework])
gem_check_ldflags_org="${LDFLAGS}"
LDFLAGS="-framework [$1] ${LDFLAGS}"
AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], [gem_check_ldflags_success="yes"],[gem_check_ldflags_success="no"])
if test "x$gem_check_ldflags_success" = "xyes"; then
AC_MSG_RESULT([yes])
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$1), [1], [framework $1])
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_GEM_FRAMEWORK_$1), [1], [framework $1])
GEM_FRAMEWORK_[]NAME[]="-framework [$1]"
[$2]
else
AC_MSG_RESULT([no])
LDFLAGS="$gem_check_ldflags_org"
[$3]
fi
AM_CONDITIONAL(HAVE_FRAMEWORK_[]NAME, [test "x$gem_check_ldflags_success" = "xyes"])
undefine([NAME])
])# GEM_CHECK_FRAMEWORK
# GEM_CHECK_LDFLAGS(ADDITIONAL-LDFLAGS, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
#
# checks whether the $(LD) linker accepts the ADDITIONAL-LDFLAGS
# if so, they are added to the LDFLAGS
AC_DEFUN([GEM_CHECK_LDFLAGS],
[
AC_MSG_CHECKING([whether linker accepts "$1"])
gem_check_ldflags_org="${LDFLAGS}"
LDFLAGS="$1 ${LDFLAGS}"
AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], [gem_check_ldflags_success="yes"],[gem_check_ldflags_success="no"])
if test "x$gem_check_ldflags_success" = "xyes"; then
AC_MSG_RESULT([yes])
[$2]
else
AC_MSG_RESULT([no])
LDFLAGS="$gem_check_ldflags_org"
[$3]
fi
])# GEM_CHECK_LDFLAGS
AC_DEFUN([GEM_CHECK_FAT],
[
AC_ARG_ENABLE(fat-binary,
[ --enable-fat-binary=ARCHS
build an Apple Multi Architecture Binary (MAB);
ARCHS is a comma-delimited list of architectures for
which to build; if ARCHS is omitted, then the package
will be built for all architectures supported by the
platform (e.g. "ppc,i386" for MacOS/X and Darwin);
if this option is disabled or omitted entirely, then
the package will be built only for the target
platform; when building multiple architectures,
dependency-tracking must be disabled],
[fat_binary=$enableval], [fat_binary=no])
if test "$fat_binary" != no; then
AC_MSG_CHECKING([target architectures])
# Respect TARGET_ARCHS setting from environment if available.
if test -z "$TARGET_ARCHS"; then
# Respect ARCH given to --enable-fat-binary if present.
if test "$fat_binary" != yes; then
TARGET_ARCHS=`echo "$fat_binary" | tr ',' ' '`
else
# Choose a default set of architectures based upon platform.
TARGET_ARCHS="ppc i386"
fi
fi
AC_MSG_RESULT([$TARGET_ARCHS])
define([Name],[translit([$1],[./-], [___])])
# /usr/lib/arch_tool -archify_list $TARGET_ARCHS
[]Name=""
tmp_arch_count=0
for archs in $TARGET_ARCHS
do
[]Name="$[]Name -arch $archs"
tmp_arch_count=$((tmp_arch_count+1))
done
if test "$tmp_arch_count" -gt 1; then
if test "x$enable_dependency_tracking" != xno; then
AC_MSG_ERROR([when building for multiple architectures, you MUST turn off dependency-tracking])
fi
fi
if test "x$[]Name" != "x"; then
tmp_arch_cflags="$CFLAGS"
tmp_arch_cxxflags="$CXXFLAGS"
GEM_CHECK_CXXFLAGS($[]Name,,[]Name="")
[]Name[]_CXXFLAGS+=$[]Name
CFLAGS="$tmp_arch_cflags"
CXXFLAGS="$tmp_arch_cxxflags"
fi
if test "x$[]Name" != "x"; then
tmp_arch_ldflags="$LDFLAGS"
GEM_CHECK_LDFLAGS($[]Name,,[]Name="")
[]Name[]_LDFLAGS+=$[]Name
LDFLAGS="$tmp_arch_ldflags"
fi
undefine([Name])
fi
])# GEM_CHECK_FAT
# GEM_CHECK_RTE()
#
# checks for RTE (currently: Pd)
# if so, they are added to the LDFLAGS, CFLAGS and whatelse
AC_DEFUN([GEM_CHECK_RTE],
[
ARCH=$(uname -m)
KERN=$(uname -s)
IEM_OPERATING_SYSTEM
AC_SUBST(GEM_RTE_CFLAGS)
AC_SUBST(GEM_RTE_LIBS)
AC_SUBST(GEM_RTE)
if test "x${libdir}" = "x\${exec_prefix}/lib"; then
libdir='${exec_prefix}/lib/pd/extra'
fi
tmp_rte_cppflags="$CPPFLAGS"
tmp_rte_cflags="$CFLAGS"
tmp_rte_cxxflags="$CXXFLAGS"
tmp_rte_ldflags="$LDFLAGS"
tmp_rte_libs="$LIBS"
GEM_RTE_CFLAGS="-DPD"
GEM_RTE_LIBS=""
GEM_RTE="Pure Data"
AC_ARG_WITH([pd],
AS_HELP_STRING([--with-pd=<path/to/pd>],[where to find pd-binary (./bin/pd.exe) and pd-sources]))
## some default paths
if test "x${with_pd}" = "x"; then
case $host_os in
*darwin*)
if test -d "/Applications/Pd-extended.app/Contents/Resources"; then with_pd="/Applications/Pd-extended.app/Contents/Resources"; fi
if test -d "/Applications/Pd.app/Contents/Resources"; then with_pd="/Applications/Pd.app/Contents/Resources"; fi
;;
*mingw* | *cygwin*)
if test -d "${PROGRAMFILES}/Pd-extended"; then with_pd="${PROGRAMFILES}/Pd-extended"; fi
if test -d "${PROGRAMFILES}/pd"; then with_pd="${PROGRAMFILES}/pd"; fi
;;
esac
fi
if test -d "$with_pd" ; then
if test -d "${with_pd}/src" ; then
AC_LIB_APPENDTOVAR([GEM_RTE_CFLAGS],"-I${with_pd}/src")
elif test -d "${with_pd}/include/pd" ; then
AC_LIB_APPENDTOVAR([GEM_RTE_CFLAGS],"-I${with_pd}/include/pd")
elif test -d "${with_pd}/include" ; then
AC_LIB_APPENDTOVAR([GEM_RTE_CFLAGS],"-I${with_pd}/include")
else
AC_LIB_APPENDTOVAR([GEM_RTE_CFLAGS],"-I${with_pd}")
fi
if test -d "${with_pd}/bin" ; then
GEM_RTE_LIBS="${GEM_RTE_LIBS}${GEM_RTE_LIBS:+ }-L${with_pd}/bin"
else
GEM_RTE_LIBS="${GEM_RTE_LIBS}${GEM_RTE_LIBS:+ }-L${with_pd}"
fi
CPPFLAGS="$CPPFLAGS ${GEM_RTE_CFLAGS}"
CFLAGS="$CFLAGS ${GEM_RTE_CFLAGS}"
CXXFLAGS="$CXXFLAGS ${GEM_RTE_CFLAGS}"
LIBS="$LIBS ${GEM_RTE_LIBS}"
fi
AC_CHECK_LIB([:pd.dll], [nullfn], [have_pddll="yes"], [have_pddll="no"])
if test "x$have_pddll" = "xyes"; then
GEM_RTE_LIBS="${GEM_RTE_LIBS}${GEM_RTE_LIBS:+ }-Xlinker -l:pd.dll"
else
AC_CHECK_LIB([pd], [nullfn], [GEM_RTE_LIBS="${GEM_RTE_LIBS}${GEM_RTE_LIBS:+ }-lpd"])
fi
AC_CHECK_HEADERS([m_pd.h], [have_pd="yes"], [have_pd="no"])
dnl LATER check why this doesn't use the --with-pd includes
dnl for now it will basically disable anything that needs s_stuff.h if it cannot be found in /usr[/local]/include
AC_CHECK_HEADERS([s_stuff.h], [], [],
[#ifdef HAVE_M_PD_H
# define PD
# include "m_pd.h"
#endif
])
### this should only be set if Pd has been found
# the extension
AC_ARG_WITH([extension],
AS_HELP_STRING([--with-extension=<ext>],[enforce a certain file-extension (e.g. pd_linux)]))
if test "x$with_extension" != "x"; then
EXT=$with_extension
else
case x$host_os in
x*darwin*)
EXT=pd_darwin
;;
x*mingw* | x*cygwin*)
EXT=dll
;;
x)
dnl just assuming that it is still linux (e.g. x86_64)
EXT="pd_linux"
;;
*)
EXT=pd_`echo $host_os | sed -e '/.*/s/-.*//' -e 's/\[.].*//'`
;;
esac
fi
GEM_RTE_EXTENSION=$EXT
AC_SUBST(GEM_RTE_EXTENSION)
CPPFLAGS="$tmp_rte_cppflags"
CFLAGS="$tmp_rte_cflags"
CXXFLAGS="$tmp_rte_cxxflags"
LDFLAGS="$tmp_rte_ldflags"
LIBS="$tmp_rte_libs"
]) # GEM_CHECK_RTE
AC_DEFUN([GEM_CHECK_THREADS],
[
GEM_ARG_ENABLE([threads], [default: use threads])
AC_SUBST(GEM_PTHREAD_CFLAGS)
AC_SUBST(GEM_PTHREAD_LIBS)
if test "x$enable_threads" != "xno"; then
AX_PTHREAD
GEM_THREADS_CFLAGS=""
AC_LIB_APPENDTOVAR([GEM_THREADS_CFLAGS], "${PTHREAD_CFLAGS}")
GEM_THREADS_LIBS="${GEM_THREADS_LIBS}${GEM_THREADS_LIBS:+ }${PTHREAD_LIBS}"
fi
])

22
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dnl FTGL support
dnl
dnl Copyright (C) 2011 IOhannes m zmölnig
AC_DEFUN([IEM_CHECK_FTGL],
[
dnl PKG_CHECK_MODULES(PKG_FT2,freetype2)
GEM_CHECK_LIB([ftgl], [ftgl], [main],,,[-lfreetype],[font support])
tmp_gem_check_ftgl_cflags="$CFLAGS"
tmp_gem_check_ftgl_cxxflags="$CXXFLAGS"
CFLAGS="$CFLAGS $GEM_LIB_FTGL_CFLAGS"
CXXFLAGS="$CXXFLAGS $GEM_LIB_FTGL_CFLAGS"
AC_CHECK_HEADERS([FTGL/ftgl.h])
CFLAGS="$tmp_gem_check_lib_cflags"
CXXFLAGS="$tmp_gem_check_lib_cxxflags"
]) dnl IEM_CHECK_FTGL

132
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# SYNOPSIS
#
# IEM_OPENGL
#
# DESCRIPTION
#
# some checks for OpenGL-related stuff
# basically just a wrapper around Braden McDaniel's ax_check_gl* family (as
# found in Gnu's autoconf-archive) with additionally setting am-conditionals HAVE_GL*
#
# LICENSE
#
# Copyright (c) 2011 IOhannes m zmölnig <zmoelnig@iem.at>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
AC_DEFUN([IEM_CHECK_GL],
[AC_REQUIRE([AX_CHECK_GL])
AM_CONDITIONAL(HAVE_GL, [test "x$no_gl" != "xyes"])
])
AC_DEFUN([IEM_CHECK_GLU],
[AC_REQUIRE([AX_CHECK_GLU])
AM_CONDITIONAL(HAVE_GLU, [test "x$no_glu" != "xyes"])
])
AC_DEFUN([IEM_CHECK_GLUT],
[AC_REQUIRE([AX_CHECK_GLUT])
AM_CONDITIONAL(HAVE_GLUT, [test "x$no_glut" != "xyes"])
])
AC_DEFUN([IEM_CHECK_GLX],
[
AC_CHECK_HEADERS([GL/glx.h],,no_glx=yes)
AM_CONDITIONAL(HAVE_GLX, [test "x$no_glx" != "xyes"])
AC_SUBST([GLX_CFLAGS])
AC_SUBST([GLX_LIBS])
])
AC_DEFUN([IEM_CHECK_AGL],
[
GEM_CHECK_FRAMEWORK(AGL)
if test "x$gem_check_ldflags_success" != "xyes"; then
no_agl="yes"
fi
AGL_CFLAGS=""
AGL_LIBS="${GEM_FRAMEWORK_AGL}"
AC_SUBST([AGL_CFLAGS])
AC_SUBST([AGL_LIBS])
AM_CONDITIONAL(HAVE_AGL, [test "x$no_agl" != "xyes"])
])
AC_DEFUN([IEM_CHECK_GLEW],
[
GEM_CHECK_LIB(glew, GLEW, glewInit,,no_glew=yes,,[OpenGL Extension Wrangler library], [no])
AM_CONDITIONAL(HAVE_GLEW, [test "x$no_glew" != "xyes"])
])
dnl # original code in Gem/configure.ac
dnl have_gl="no"
dnl have_glu="no"
dnl
dnl GEM_CHECK_FRAMEWORK(OpenGL,
dnl [have_opengl_framework="yes" have_gl="yes"],
dnl [have_opengl_framework="no" have_gl="no"])
dnl
dnl # don't need libGL if we have the OpenGL framework
dnl if test "x$have_opengl_framework" != "xyes"; then
dnl AC_CHECK_LIB(GL,glInitNames)
dnl if test "x$ac_cv_lib_GL_glInitNames" = "xyes"; then
dnl have_gl="yes"
dnl fi
dnl
dnl AC_CHECK_LIB(GLU,gluLookAt)
dnl if test "x$ac_cv_lib_GLU_gluLookAt" = "xyes"; then
dnl have_glu="yes"
dnl fi
dnl fi
dnl GEM_CHECK_FRAMEWORK(AGL)
dnl if test "x$gem_check_ldflags_success" = "xyes"; then
dnl have_glu="yes"
dnl fi
dnl have_gl_headers="no"
dnl AC_CHECK_HEADER(GL/gl.h,have_gl_headers="yes")
dnl AC_CHECK_HEADER(OpenGL/gl.h,have_gl_headers="yes")
dnl if test "x$have_gl_headers" != "xyes"; then
dnl have_gl="no"
dnl fi
dnl
dnl have_glu_headers="no"
dnl AC_CHECK_HEADER(GL/glu.h,have_glu_headers="yes")
dnl AC_CHECK_HEADER(OpenGL/glu.h,have_glu_headers="yes")
dnl if test "x$have_glu_headers" != "xyes"; then
dnl have_glu="no"
dnl fi
dnl
dnl AC_CHECK_HEADERS(GL/glx.h)

55
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dnl try to figure out the target operating system and set some AM-macros accordingly
dnl
dnl Copyright (C) 2011 IOhannes m zmölnig
AC_DEFUN([IEM_OPERATING_SYSTEM],
[
AC_CANONICAL_HOST
LINUX=no
ANDROID=no
MACOSX=no
IPHONEOS=no
BSD=no
WINDOWS=no
MINGW=no
CYGWIN=no
HURD=no
IRIX=no
case $host_os in
*linux*)
LINUX=yes
;;
*darwin*)
MACOSX=yes
;;
GNU/kFreeBSD)
BSD=yes
;;
*mingw*)
WINDOWS=yes
MINGW=yes
;;
*cygwin*)
WINDOWS=yes
CYGWIN=yes
;;
GNU)
HURD=yes
;;
esac
AM_CONDITIONAL(LINUX, test x$LINUX = xyes)
AM_CONDITIONAL(ANDROID, test x$ANDROID = xyes)
AM_CONDITIONAL(MACOSX, test x$MACOSX = xyes)
AM_CONDITIONAL(IPHONEOS, test x$IPHONEOS = xyes)
AM_CONDITIONAL(BSD, test x$BSD = xyes)
AM_CONDITIONAL(WINDOWS, test x$WINDOWS = xyes)
AM_CONDITIONAL(CYGWIN, test x$CYGWIN = xyes)
AM_CONDITIONAL(MINGW, test x$MINGW = xyes)
AM_CONDITIONAL(HURD, test x$HURD = xyes)
AM_CONDITIONAL(IRIX, test x$IRIX = xyes)
]) dnl IEM_OPERATING_SYSTEM

25
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dnl Copyright (C) 2011 IOhannes m zmölnig
dnl This file is free software; IOhannes m zmölnig
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
## useage: add the @RELATIVERPATH_FLAGS@ to the LDFLAGS of your external
## TODO: add other platforms
## on OSX we have to add "-install_name @loader_path/$NAME" when linking the _library_
## on W32 this should no be needed at all (but is it?)
AC_DEFUN([IEM_RELATIVERPATH],
[
originrpath_org_CFLAGS=$CFLAGS
IEM_CHECK_CFLAGS([-Wl,-enable-new-dtags -Wl,-rpath,"\$ORIGIN"],
[have_originrpath="yes"], [have_originrpath="no"])
CFLAGS=$originrpath_org_CFLAGS
RELATIVERPATH_FLAGS=""
if test "x$have_originrpath" = "xyes"; then
RELATIVERPATH_FLAGS="-Wl,-enable-new-dtags -Wl,-rpath,\"\\\$\$ORIGIN\""
fi
AC_SUBST([RELATIVERPATH_FLAGS])
])# IEM_RELATIVERPATH

819
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# lib-prefix.m4 serial 4 (gettext-0.14.2)
dnl Copyright (C) 2001-2005 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Bruno Haible.
dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
dnl require excessive bracketing.
ifdef([AC_HELP_STRING],
[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
dnl to access previously installed libraries. The basic assumption is that
dnl a user will want packages to use other packages he previously installed
dnl with the same --prefix option.
dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
dnl libraries, but is otherwise very convenient.
AC_DEFUN([AC_LIB_PREFIX],
[
AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
dnl By default, look in $includedir and $libdir.
use_additional=yes
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
AC_LIB_ARG_WITH([lib-prefix],
[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
--without-lib-prefix don't search for libraries in includedir and libdir],
[
if test "X$withval" = "Xno"; then
use_additional=no
else
if test "X$withval" = "X"; then
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
else
additional_includedir="$withval/include"
additional_libdir="$withval/lib"
fi
fi
])
if test $use_additional = yes; then
dnl Potentially add $additional_includedir to $CPPFLAGS.
dnl But don't add it
dnl 1. if it's the standard /usr/include,
dnl 2. if it's already present in $CPPFLAGS,
dnl 3. if it's /usr/local/include and we are using GCC on Linux,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_includedir" != "X/usr/include"; then
haveit=
for x in $CPPFLAGS; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-I$additional_includedir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test "X$additional_includedir" = "X/usr/local/include"; then
if test -n "$GCC"; then
case $host_os in
linux* | gnu* | k*bsd*-gnu) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
if test -d "$additional_includedir"; then
dnl Really add $additional_includedir to $CPPFLAGS.
CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
fi
fi
fi
fi
dnl Potentially add $additional_libdir to $LDFLAGS.
dnl But don't add it
dnl 1. if it's the standard /usr/lib,
dnl 2. if it's already present in $LDFLAGS,
dnl 3. if it's /usr/local/lib and we are using GCC on Linux,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_libdir" != "X/usr/lib"; then
haveit=
for x in $LDFLAGS; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$additional_libdir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test "X$additional_libdir" = "X/usr/local/lib"; then
if test -n "$GCC"; then
case $host_os in
linux*) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
if test -d "$additional_libdir"; then
dnl Really add $additional_libdir to $LDFLAGS.
LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
fi
fi
fi
fi
fi
])
dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
dnl acl_final_exec_prefix, containing the values to which $prefix and
dnl $exec_prefix will expand at the end of the configure script.
AC_DEFUN([AC_LIB_PREPARE_PREFIX],
[
dnl Unfortunately, prefix and exec_prefix get only finally determined
dnl at the end of configure.
if test "X$prefix" = "XNONE"; then
acl_final_prefix="$ac_default_prefix"
else
acl_final_prefix="$prefix"
fi
if test "X$exec_prefix" = "XNONE"; then
acl_final_exec_prefix='${prefix}'
else
acl_final_exec_prefix="$exec_prefix"
fi
acl_save_prefix="$prefix"
prefix="$acl_final_prefix"
eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
prefix="$acl_save_prefix"
])
dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
dnl variables prefix and exec_prefix bound to the values they will have
dnl at the end of the configure script.
AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
[
acl_save_prefix="$prefix"
prefix="$acl_final_prefix"
acl_save_exec_prefix="$exec_prefix"
exec_prefix="$acl_final_exec_prefix"
$1
exec_prefix="$acl_save_exec_prefix"
prefix="$acl_save_prefix"
])
# lib-link.m4 serial 6 (gettext-0.14.3)
dnl Copyright (C) 2001-2005 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Bruno Haible.
AC_PREREQ(2.50)
dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
dnl the libraries corresponding to explicit and implicit dependencies.
dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and
dnl augments the CPPFLAGS variable.
AC_DEFUN([AC_LIB_LINKFLAGS],
[
AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
AC_REQUIRE([AC_LIB_RPATH])
define([Name],[translit([$1],[./-], [___])])
define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
AC_LIB_LINKFLAGS_BODY([$1], [$2])
ac_cv_lib[]Name[]_libs="$LIB[]NAME"
ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME"
ac_cv_lib[]Name[]_cppflags="$INC[]NAME"
])
LIB[]NAME="$ac_cv_lib[]Name[]_libs"
LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs"
INC[]NAME="$ac_cv_lib[]Name[]_cppflags"
AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
AC_SUBST([LIB]NAME)
AC_SUBST([LTLIB]NAME)
dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the
dnl results of this search when this library appears as a dependency.
HAVE_LIB[]NAME=yes
undefine([Name])
undefine([NAME])
])
dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode)
dnl searches for libname and the libraries corresponding to explicit and
dnl implicit dependencies, together with the specified include files and
dnl the ability to compile and link the specified testcode. If found, it
dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and
dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and
dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs
dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty.
AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
[
AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
AC_REQUIRE([AC_LIB_RPATH])
define([Name],[translit([$1],[./-], [___])])
define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
dnl accordingly.
AC_LIB_LINKFLAGS_BODY([$1], [$2])
dnl Add $INC[]NAME to CPPFLAGS before performing the following checks,
dnl because if the user has installed lib[]Name and not disabled its use
dnl via --without-lib[]Name-prefix, he wants to use it.
ac_save_CPPFLAGS="$CPPFLAGS"
AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
ac_save_LIBS="$LIBS"
LIBS="$LIBS $LIB[]NAME"
AC_TRY_LINK([$3], [$4], [ac_cv_lib[]Name=yes], [ac_cv_lib[]Name=no])
LIBS="$ac_save_LIBS"
])
if test "$ac_cv_lib[]Name" = yes; then
HAVE_LIB[]NAME=yes
AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the $1 library.])
AC_MSG_CHECKING([how to link with lib[]$1])
AC_MSG_RESULT([$LIB[]NAME])
else
HAVE_LIB[]NAME=no
dnl If $LIB[]NAME didn't lead to a usable library, we don't need
dnl $INC[]NAME either.
CPPFLAGS="$ac_save_CPPFLAGS"
LIB[]NAME=
LTLIB[]NAME=
fi
AC_SUBST([HAVE_LIB]NAME)
AC_SUBST([LIB]NAME)
AC_SUBST([LTLIB]NAME)
undefine([Name])
undefine([NAME])
])
dnl Determine the platform dependent parameters needed to use rpath:
dnl libext, shlibext, hardcode_libdir_flag_spec, hardcode_libdir_separator,
dnl hardcode_direct, hardcode_minus_L.
AC_DEFUN([AC_LIB_RPATH],
[
dnl Tell automake >= 1.10 to complain if config.rpath is missing.
m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])])
AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS
AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld
AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host
AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
AC_CACHE_CHECK([for shared library run path origin], acl_cv_rpath, [
CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
. ./conftest.sh
rm -f ./conftest.sh
acl_cv_rpath=done
])
wl="$acl_cv_wl"
libext="$acl_cv_libext"
shlibext="$acl_cv_shlibext"
hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec"
hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator"
hardcode_direct="$acl_cv_hardcode_direct"
hardcode_minus_L="$acl_cv_hardcode_minus_L"
dnl Determine whether the user wants rpath handling at all.
AC_ARG_ENABLE(rpath,
[ --disable-rpath do not hardcode runtime library paths],
:, enable_rpath=yes)
])
dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and
dnl the libraries corresponding to explicit and implicit dependencies.
dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables.
AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
[
define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
dnl By default, look in $includedir and $libdir.
use_additional=yes
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
AC_LIB_ARG_WITH([lib$1-prefix],
[ --with-lib$1-prefix[=DIR] search for lib$1 in DIR/include and DIR/lib
--without-lib$1-prefix don't search for lib$1 in includedir and libdir],
[
if test "X$withval" = "Xno"; then
use_additional=no
else
if test "X$withval" = "X"; then
AC_LIB_WITH_FINAL_PREFIX([
eval additional_includedir=\"$includedir\"
eval additional_libdir=\"$libdir\"
])
else
additional_includedir="$withval/include"
additional_libdir="$withval/lib"
fi
fi
])
dnl Search the library and its dependencies in $additional_libdir and
dnl $LDFLAGS. Using breadth-first-seach.
LIB[]NAME=
LTLIB[]NAME=
INC[]NAME=
rpathdirs=
ltrpathdirs=
names_already_handled=
names_next_round='$1 $2'
while test -n "$names_next_round"; do
names_this_round="$names_next_round"
names_next_round=
for name in $names_this_round; do
already_handled=
for n in $names_already_handled; do
if test "$n" = "$name"; then
already_handled=yes
break
fi
done
if test -z "$already_handled"; then
names_already_handled="$names_already_handled $name"
dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
dnl or AC_LIB_HAVE_LINKFLAGS call.
uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
eval value=\"\$HAVE_LIB$uppername\"
if test -n "$value"; then
if test "$value" = yes; then
eval value=\"\$LIB$uppername\"
test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value"
eval value=\"\$LTLIB$uppername\"
test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value"
else
dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined
dnl that this library doesn't exist. So just drop it.
:
fi
else
dnl Search the library lib$name in $additional_libdir and $LDFLAGS
dnl and the already constructed $LIBNAME/$LTLIBNAME.
found_dir=
found_la=
found_so=
found_a=
if test $use_additional = yes; then
if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then
found_dir="$additional_libdir"
found_so="$additional_libdir/lib$name.$shlibext"
if test -f "$additional_libdir/lib$name.la"; then
found_la="$additional_libdir/lib$name.la"
fi
else
if test -f "$additional_libdir/lib$name.$libext"; then
found_dir="$additional_libdir"
found_a="$additional_libdir/lib$name.$libext"
if test -f "$additional_libdir/lib$name.la"; then
found_la="$additional_libdir/lib$name.la"
fi
fi
fi
fi
if test "X$found_dir" = "X"; then
for x in $LDFLAGS $LTLIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
case "$x" in
-L*)
dir=`echo "X$x" | sed -e 's/^X-L//'`
if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then
found_dir="$dir"
found_so="$dir/lib$name.$shlibext"
if test -f "$dir/lib$name.la"; then
found_la="$dir/lib$name.la"
fi
else
if test -f "$dir/lib$name.$libext"; then
found_dir="$dir"
found_a="$dir/lib$name.$libext"
if test -f "$dir/lib$name.la"; then
found_la="$dir/lib$name.la"
fi
fi
fi
;;
esac
if test "X$found_dir" != "X"; then
break
fi
done
fi
if test "X$found_dir" != "X"; then
dnl Found the library.
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name"
if test "X$found_so" != "X"; then
dnl Linking with a shared library. We attempt to hardcode its
dnl directory into the executable's runpath, unless it's the
dnl standard /usr/lib.
if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/lib"; then
dnl No hardcoding is needed.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
else
dnl Use an explicit option to hardcode DIR into the resulting
dnl binary.
dnl Potentially add DIR to ltrpathdirs.
dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
haveit=
for x in $ltrpathdirs; do
if test "X$x" = "X$found_dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
ltrpathdirs="$ltrpathdirs $found_dir"
fi
dnl The hardcoding into $LIBNAME is system dependent.
if test "$hardcode_direct" = yes; then
dnl Using DIR/libNAME.so during linking hardcodes DIR into the
dnl resulting binary.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
else
if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then
dnl Use an explicit option to hardcode DIR into the resulting
dnl binary.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
dnl Potentially add DIR to rpathdirs.
dnl The rpathdirs will be appended to $LIBNAME at the end.
haveit=
for x in $rpathdirs; do
if test "X$x" = "X$found_dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
rpathdirs="$rpathdirs $found_dir"
fi
else
dnl Rely on "-L$found_dir".
dnl But don't add it if it's already contained in the LDFLAGS
dnl or the already constructed $LIBNAME
haveit=
for x in $LDFLAGS $LIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$found_dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir"
fi
if test "$hardcode_minus_L" != no; then
dnl FIXME: Not sure whether we should use
dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
dnl here.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
else
dnl We cannot use $hardcode_runpath_var and LD_RUN_PATH
dnl here, because this doesn't fit in flags passed to the
dnl compiler. So give up. No hardcoding. This affects only
dnl very old systems.
dnl FIXME: Not sure whether we should use
dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
dnl here.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
fi
fi
fi
fi
else
if test "X$found_a" != "X"; then
dnl Linking with a static library.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a"
else
dnl We shouldn't come here, but anyway it's good to have a
dnl fallback.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name"
fi
fi
dnl Assume the include files are nearby.
additional_includedir=
case "$found_dir" in
*/lib | */lib/)
basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e 's,/lib/*$,,'`
additional_includedir="$basedir/include"
;;
esac
if test "X$additional_includedir" != "X"; then
dnl Potentially add $additional_includedir to $INCNAME.
dnl But don't add it
dnl 1. if it's the standard /usr/include,
dnl 2. if it's /usr/local/include and we are using GCC on Linux,
dnl 3. if it's already present in $CPPFLAGS or the already
dnl constructed $INCNAME,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_includedir" != "X/usr/include"; then
haveit=
if test "X$additional_includedir" = "X/usr/local/include"; then
if test -n "$GCC"; then
case $host_os in
linux* | gnu* | k*bsd*-gnu) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
for x in $CPPFLAGS $INC[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-I$additional_includedir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test -d "$additional_includedir"; then
dnl Really add $additional_includedir to $INCNAME.
INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir"
fi
fi
fi
fi
fi
dnl Look for dependencies.
if test -n "$found_la"; then
dnl Read the .la file. It defines the variables
dnl dlname, library_names, old_library, dependency_libs, current,
dnl age, revision, installed, dlopen, dlpreopen, libdir.
save_libdir="$libdir"
case "$found_la" in
*/* | *\\*) . "$found_la" ;;
*) . "./$found_la" ;;
esac
libdir="$save_libdir"
dnl We use only dependency_libs.
for dep in $dependency_libs; do
case "$dep" in
-L*)
additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'`
dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME.
dnl But don't add it
dnl 1. if it's the standard /usr/lib,
dnl 2. if it's /usr/local/lib and we are using GCC on Linux,
dnl 3. if it's already present in $LDFLAGS or the already
dnl constructed $LIBNAME,
dnl 4. if it doesn't exist as a directory.
if test "X$additional_libdir" != "X/usr/lib"; then
haveit=
if test "X$additional_libdir" = "X/usr/local/lib"; then
if test -n "$GCC"; then
case $host_os in
linux* | gnu* | k*bsd*-gnu) haveit=yes;;
esac
fi
fi
if test -z "$haveit"; then
haveit=
for x in $LDFLAGS $LIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$additional_libdir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test -d "$additional_libdir"; then
dnl Really add $additional_libdir to $LIBNAME.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir"
fi
fi
haveit=
for x in $LDFLAGS $LTLIB[]NAME; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X-L$additional_libdir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
if test -d "$additional_libdir"; then
dnl Really add $additional_libdir to $LTLIBNAME.
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir"
fi
fi
fi
fi
;;
-R*)
dir=`echo "X$dep" | sed -e 's/^X-R//'`
if test "$enable_rpath" != no; then
dnl Potentially add DIR to rpathdirs.
dnl The rpathdirs will be appended to $LIBNAME at the end.
haveit=
for x in $rpathdirs; do
if test "X$x" = "X$dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
rpathdirs="$rpathdirs $dir"
fi
dnl Potentially add DIR to ltrpathdirs.
dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
haveit=
for x in $ltrpathdirs; do
if test "X$x" = "X$dir"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
ltrpathdirs="$ltrpathdirs $dir"
fi
fi
;;
-l*)
dnl Handle this in the next round.
names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
;;
*.la)
dnl Handle this in the next round. Throw away the .la's
dnl directory; it is already contained in a preceding -L
dnl option.
names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
;;
*)
dnl Most likely an immediate library name.
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep"
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep"
;;
esac
done
fi
else
dnl Didn't find the library; assume it is in the system directories
dnl known to the linker and runtime loader. (All the system
dnl directories known to the linker should also be known to the
dnl runtime loader, otherwise the system is severely misconfigured.)
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name"
fi
fi
fi
done
done
if test "X$rpathdirs" != "X"; then
if test -n "$hardcode_libdir_separator"; then
dnl Weird platform: only the last -rpath option counts, the user must
dnl pass all path elements in one option. We can arrange that for a
dnl single library, but not when more than one $LIBNAMEs are used.
alldirs=
for found_dir in $rpathdirs; do
alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir"
done
dnl Note: hardcode_libdir_flag_spec uses $libdir and $wl.
acl_save_libdir="$libdir"
libdir="$alldirs"
eval flag=\"$hardcode_libdir_flag_spec\"
libdir="$acl_save_libdir"
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
else
dnl The -rpath options are cumulative.
for found_dir in $rpathdirs; do
acl_save_libdir="$libdir"
libdir="$found_dir"
eval flag=\"$hardcode_libdir_flag_spec\"
libdir="$acl_save_libdir"
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
done
fi
fi
if test "X$ltrpathdirs" != "X"; then
dnl When using libtool, the option that works for both libraries and
dnl executables is -R. The -R options are cumulative.
for found_dir in $ltrpathdirs; do
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir"
done
fi
])
dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR,
dnl unless already present in VAR.
dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes
dnl contains two or three consecutive elements that belong together.
AC_DEFUN([AC_LIB_APPENDTOVAR],
[
for element in [$2]; do
haveit=
for x in $[$1]; do
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
if test "X$x" = "X$element"; then
haveit=yes
break
fi
done
if test -z "$haveit"; then
[$1]="${[$1]}${[$1]:+ }$element"
fi
done
])
# lib-ld.m4 serial 3 (gettext-0.13)
dnl Copyright (C) 1996-2003 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Subroutines of libtool.m4,
dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision
dnl with libtool.m4.
dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
AC_DEFUN([AC_LIB_PROG_LD_GNU],
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
case `$LD -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
acl_cv_prog_gnu_ld=yes ;;
*)
acl_cv_prog_gnu_ld=no ;;
esac])
with_gnu_ld=$acl_cv_prog_gnu_ld
])
dnl From libtool-1.4. Sets the variable LD.
AC_DEFUN([AC_LIB_PROG_LD],
[AC_ARG_WITH(gnu-ld,
[ --with-gnu-ld assume the C compiler uses GNU ld [default=no]],
test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
# Prepare PATH_SEPARATOR.
# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
echo "#! /bin/sh" >conf$$.sh
echo "exit 0" >>conf$$.sh
chmod +x conf$$.sh
if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
PATH_SEPARATOR=';'
else
PATH_SEPARATOR=:
fi
rm -f conf$$.sh
fi
ac_prog=ld
if test "$GCC" = yes; then
# Check if gcc -print-prog-name=ld gives a path.
AC_MSG_CHECKING([for ld used by GCC])
case $host in
*-*-mingw*)
# gcc leaves a trailing carriage return which upsets mingw
ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
*)
ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
esac
case $ac_prog in
# Accept absolute paths.
[[\\/]* | [A-Za-z]:[\\/]*)]
[re_direlt='/[^/][^/]*/\.\./']
# Canonicalize the path of ld
ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
done
test -z "$LD" && LD="$ac_prog"
;;
"")
# If it fails, then pretend we aren't using GCC.
ac_prog=ld
;;
*)
# If it is relative, then search for the first ld in PATH.
with_gnu_ld=unknown
;;
esac
elif test "$with_gnu_ld" = yes; then
AC_MSG_CHECKING([for GNU ld])
else
AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(acl_cv_path_LD,
[if test -z "$LD"; then
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
acl_cv_path_LD="$ac_dir/$ac_prog"
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some GNU ld's only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
*GNU* | *'with BFD'*)
test "$with_gnu_ld" != no && break ;;
*)
test "$with_gnu_ld" != yes && break ;;
esac
fi
done
IFS="$ac_save_ifs"
else
acl_cv_path_LD="$LD" # Let the user override the test with a path.
fi])
LD="$acl_cv_path_LD"
if test -n "$LD"; then
AC_MSG_RESULT($LD)
else
AC_MSG_RESULT(no)
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AC_LIB_PROG_LD_GNU
])

127
Gem/m4/pkg.m4 Normal file
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@ -0,0 +1,127 @@
# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
#
# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# PKG_PROG_PKG_CONFIG([MIN-VERSION])
# ----------------------------------
AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
m4_pattern_allow(PKG_CFLAGS)
m4_pattern_allow(PKG_LIBS)
AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
fi
if test -n "$PKG_CONFIG"; then
_pkg_min_version=m4_ifval([$1], [$1], [0.9.0])
AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
PKG_CONFIG=""
fi
fi[]dnl
])# PKG_PROG_PKG_CONFIG
# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
# ---------------------------------------------
m4_define([_PKG_CONFIG],
[if test "x$ac_cv_env_[]$1[]_set" = "xset"; then
pkg_cv_[]$1=$ac_cv_env_[]$1[]_value
elif test -n "$PKG_CONFIG"; then
if AC_RUN_LOG([$PKG_CONFIG --exists "$3" >/dev/null 2>&1]); then
pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
else
pkg_failed=yes
fi
else
pkg_failed=untried
fi[]dnl
])# _PKG_CONFIG
# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
# [ACTION-IF-NOT-FOUND])
#
#
# Note that if there is a possibility the first call to
# PKG_CHECK_MODULES might not happen, you should be sure to include an
# explicit call to PKG_PROG_PKG_CONFIG in your configure.in
#
#
# --------------------------------------------------------------
AC_DEFUN([PKG_CHECK_MODULES],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
m4_pattern_allow([$1]_CFLAGS)
m4_pattern_allow([$1]_LIBS)
m4_pattern_allow([$1])
m4_pattern_allow([$1]_PKG_ERRORS)
AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
pkg_failed=no
AC_CACHE_CHECK([for $1][_CFLAGS], [pkg_cv_][$1][_CFLAGS],
[_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])])
AC_CACHE_CHECK([for $1][_LIBS], [pkg_cv_][$1][_LIBS],
[_PKG_CONFIG([$1][_LIBS], [libs], [$2])])
if test $pkg_failed = yes; then
$1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
# Put the nasty error message in config.log where it belongs
echo "$$1[]_PKG_ERRORS" 1>&AS_MESSAGE_LOG_FD
ifelse([$4], , [AC_MSG_ERROR(dnl
[Package requirements ($2) were not met.
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.
Alternatively you may set the $1_CFLAGS and $1_LIBS environment variables
to avoid the need to call pkg-config. See the pkg-config man page for
more details.])],
[$4])
elif test $pkg_failed = untried; then
ifelse([$4], , [AC_MSG_FAILURE(dnl
[The pkg-config script could not be found or is too old. Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full
path to pkg-config.
Alternatively you may set the $1_CFLAGS and $1_LIBS environment variables
to avoid the need to call pkg-config. See the pkg-config man page for
more details.
To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>.])],
[$4])
else
$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
ifelse([$3], , :, [$3])
fi[]
if test "x${$1[]_CFLAGS}" != "x"; then
AC_LIB_APPENDTOVAR([PKG_CFLAGS], "${$1_CFLAGS}")
fi
if test "x${$1[]_LIBS}" != "x"; then
PKG_LIBS="${$1[]_LIBS} ${PKG_LIBS}"
fi
])# PKG_CHECK_MODULES