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-dnl ---------------------------------------------------------------------------
-dnl Message output
-dnl ---------------------------------------------------------------------------
-AC_DEFUN([LOC_MSG],[echo "$1"])
-
-dnl ---------------------------------------------------------------------------
-dnl Available from the GNU Autoconf Macro Archive at:
-dnl http://www.gnu.org/software/ac-archive/vl_prog_cc_warnings.html
-dnl ---------------------------------------------------------------------------
-
-dnl @synopsis VL_PROG_CC_WARNINGS([ANSI])
-dnl
-dnl Enables a reasonable set of warnings for the C compiler.
-dnl Optionally, if the first argument is nonempty, turns on flags which
-dnl enforce and/or enable proper ANSI C if such are known with the
-dnl compiler used.
-dnl
-dnl Currently this macro knows about GCC, Solaris C compiler, Digital
-dnl Unix C compiler, C for AIX Compiler, HP-UX C compiler, IRIX C
-dnl compiler, NEC SX-5 (Super-UX 10) C compiler, and Cray J90 (Unicos
-dnl 10.0.0.8) C compiler.
-dnl
-dnl @category C
-dnl @author Ville Laurikari <vl@iki.fi>
-dnl @version 2002-04-04
-dnl @license AllPermissive
-
-AC_DEFUN([VL_PROG_CC_WARNINGS], [
- ansi=$1
- if test -z "$ansi"; then
- msg="for C compiler warning flags"
- else
- msg="for C compiler warning and ANSI conformance flags"
- fi
- AC_CACHE_CHECK($msg, vl_cv_prog_cc_warnings, [
- if test -n "$CC"; then
- cat > conftest.c <<EOF
-int main(int argc, char **argv) { return 0; }
-EOF
-
- dnl GCC. -W option has been renamed in -wextra in latest gcc versions.
- if test "$GCC" = "yes"; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="-Wall -W"
- else
- vl_cv_prog_cc_warnings="-Wall -W -ansi -pedantic"
- fi
-
- dnl Most compilers print some kind of a version string with some command
- dnl line options (often "-V"). The version string should be checked
- dnl before doing a test compilation run with compiler-specific flags.
- dnl This is because some compilers (like the Cray compiler) only
- dnl produce a warning message for unknown flags instead of returning
- dnl an error, resulting in a false positive. Also, compilers may do
- dnl erratic things when invoked with flags meant for a different
- dnl compiler.
-
- dnl Solaris C compiler
- elif $CC -V 2>&1 | grep -i "WorkShop" > /dev/null 2>&1 &&
- $CC -c -v -Xc conftest.c > /dev/null 2>&1 &&
- test -f conftest.o; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="-v"
- else
- vl_cv_prog_cc_warnings="-v -Xc"
- fi
-
- dnl Digital Unix C compiler
- elif $CC -V 2>&1 | grep -i "Digital UNIX Compiler" > /dev/null 2>&1 &&
- $CC -c -verbose -w0 -warnprotos -std1 conftest.c > /dev/null 2>&1 &&
- test -f conftest.o; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos"
- else
- vl_cv_prog_cc_warnings="-verbose -w0 -warnprotos -std1"
- fi
-
- dnl C for AIX Compiler
- elif $CC 2>&1 | grep -i "C for AIX Compiler" > /dev/null 2>&1 &&
- $CC -c -qlanglvl=ansi -qinfo=all conftest.c > /dev/null 2>&1 &&
- test -f conftest.o; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd"
- else
- vl_cv_prog_cc_warnings="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd -qlanglvl=ansi"
- fi
-
- dnl IRIX C compiler
- elif $CC -version 2>&1 | grep -i "MIPSpro Compilers" > /dev/null 2>&1 &&
- $CC -c -fullwarn -ansi -ansiE conftest.c > /dev/null 2>&1 &&
- test -f conftest.o; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="-fullwarn"
- else
- vl_cv_prog_cc_warnings="-fullwarn -ansi -ansiE"
- fi
-
- dnl HP-UX C compiler
- elif what $CC 2>&1 | grep -i "HP C Compiler" > /dev/null 2>&1 &&
- $CC -c -Aa +w1 conftest.c > /dev/null 2>&1 &&
- test -f conftest.o; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="+w1"
- else
- vl_cv_prog_cc_warnings="+w1 -Aa"
- fi
-
- dnl The NEC SX-5 (Super-UX 10) C compiler
- elif $CC -V 2>&1 | grep "/SX" > /dev/null 2>&1 &&
- $CC -c -pvctl[,]fullmsg -Xc conftest.c > /dev/null 2>&1 &&
- test -f conftest.o; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="-pvctl[,]fullmsg"
- else
- vl_cv_prog_cc_warnings="-pvctl[,]fullmsg -Xc"
- fi
-
- dnl The Cray C compiler (Unicos)
- elif $CC -V 2>&1 | grep -i "Cray" > /dev/null 2>&1 &&
- $CC -c -h msglevel 2 conftest.c > /dev/null 2>&1 &&
- test -f conftest.o; then
- if test -z "$ansi"; then
- vl_cv_prog_cc_warnings="-h msglevel 2"
- else
- vl_cv_prog_cc_warnings="-h msglevel 2 -h conform"
- fi
-
- fi
- rm -f conftest.*
- fi
- if test -n "$vl_cv_prog_cc_warnings"; then
- CFLAGS="$CFLAGS $vl_cv_prog_cc_warnings"
- else
- vl_cv_prog_cc_warnings="unknown"
- fi
- ])
-])dnl
-
-dnl ---------------------------------------------------------------------------
-dnl Available from the GNU Autoconf Macro Archive at:
-dnl http://autoconf-archive.cryp.to/ax_lang_compiler_ms.html
-dnl ---------------------------------------------------------------------------
-
-dnl @synopsis AX_LANG_COMPILER_MS
-dnl
-dnl Check whether the compiler for the current language is Microsoft.
-dnl
-dnl This macro is modeled after _AC_LANG_COMPILER_GNU in the GNU
-dnl Autoconf implementation.
-dnl
-dnl @category InstalledPackages
-dnl @author Braden McDaniel <braden@endoframe.com>
-dnl @version 2004-11-15
-dnl @license AllPermissive
-
-AC_DEFUN([AX_LANG_COMPILER_MS],
-[AC_CACHE_CHECK([whether we are using the Microsoft _AC_LANG compiler],
- [ax_cv_[]_AC_LANG_ABBREV[]_compiler_ms],
-[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[#ifndef _MSC_VER
- choke me
-#endif
-]])],
- [ax_compiler_ms=yes],
- [ax_compiler_ms=no])
-ax_cv_[]_AC_LANG_ABBREV[]_compiler_ms=$ax_compiler_ms
-])])
-
-dnl ---------------------------------------------------------------------------
-dnl Available from the GNU Autoconf Macro Archive at:
-dnl http://www.gnu.org/software/ac-archive/ax_check_gl.html
-dnl ---------------------------------------------------------------------------
-
-dnl SYNOPSIS
-dnl
-dnl AX_CHECK_GL
-dnl
-dnl DESCRIPTION
-dnl
-dnl Check for an OpenGL implementation. If GL is found, the required
-dnl compiler and linker flags are included in the output variables
-dnl "GL_CFLAGS" and "GL_LIBS", respectively. If no usable GL implementation
-dnl is found, "no_gl" is set to "yes".
-dnl
-dnl If the header "GL/gl.h" is found, "HAVE_GL_GL_H" is defined. If the
-dnl header "OpenGL/gl.h" is found, HAVE_OPENGL_GL_H is defined. These
-dnl preprocessor definitions may not be mutually exclusive.
-dnl
-dnl LICENSE
-dnl
-dnl Copyright (c) 2009 Braden McDaniel <braden@endoframe.com>
-dnl
-dnl This program is free software; you can redistribute it and/or modify it
-dnl under the terms of the GNU General Public License as published by the
-dnl Free Software Foundation; either version 2 of the License, or (at your
-dnl option) any later version.
-dnl
-dnl This program is distributed in the hope that it will be useful, but
-dnl WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-dnl Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License along
-dnl with this program. If not, see <http://www.gnu.org/licenses/>.
-dnl
-dnl As a special exception, the respective Autoconf Macro's copyright owner
-dnl gives unlimited permission to copy, distribute and modify the configure
-dnl scripts that are the output of Autoconf when processing the Macro. You
-dnl need not follow the terms of the GNU General Public License when using
-dnl or distributing such scripts, even though portions of the text of the
-dnl Macro appear in them. The GNU General Public License (GPL) does govern
-dnl all other use of the material that constitutes the Autoconf Macro.
-dnl
-dnl This special exception to the GPL applies to versions of the Autoconf
-dnl Macro released by the Autoconf Archive. When you make and distribute a
-dnl modified version of the Autoconf Macro, you may extend this special
-dnl exception to the GPL to apply to your modified version as well.
-
-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_LANG_COMPILER_MS
-AS_IF([test X$ax_compiler_ms = Xno],
- [GL_CFLAGS="${PTHREAD_CFLAGS}"; GL_LIBS="${PTHREAD_LIBS} -lm"])
-
-dnl
-dnl Use x_includes and x_libraries if they have been set (presumably by
-dnl AC_PATH_X).
-dnl
-AS_IF([test "X$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
-
-dnl ---------------------------------------------------------------------------
-dnl Available from the GNU Autoconf Macro Archive at:
-dnl http://www.gnu.org/software/ac-archive/ax_check_glu.html
-dnl ---------------------------------------------------------------------------
-
-dnl SYNOPSIS
-dnl
-dnl AX_CHECK_GLU
-dnl
-dnl DESCRIPTION
-dnl
-dnl Check for GLU. If GLU is found, the required preprocessor and linker
-dnl flags are included in the output variables "GLU_CFLAGS" and "GLU_LIBS",
-dnl respectively. If no GLU implementation is found, "no_glu" is set to
-dnl "yes".
-dnl
-dnl If the header "GL/glu.h" is found, "HAVE_GL_GLU_H" is defined. If the
-dnl header "OpenGL/glu.h" is found, HAVE_OPENGL_GLU_H is defined. These
-dnl preprocessor definitions may not be mutually exclusive.
-dnl
-dnl Some implementations (in particular, some versions of Mac OS X) are
-dnl known to treat the GLU tesselator callback function type as "GLvoid
-dnl (*)(...)" rather than the standard "GLvoid (*)()". If the former
-dnl condition is detected, this macro defines "HAVE_VARARGS_GLU_TESSCB".
-dnl
-dnl LICENSE
-dnl
-dnl Copyright (c) 2009 Braden McDaniel <braden@endoframe.com>
-dnl
-dnl This program is free software; you can redistribute it and/or modify it
-dnl under the terms of the GNU General Public License as published by the
-dnl Free Software Foundation; either version 2 of the License, or (at your
-dnl option) any later version.
-dnl
-dnl This program is distributed in the hope that it will be useful, but
-dnl WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-dnl Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License along
-dnl with this program. If not, see <http://www.gnu.org/licenses/>.
-dnl
-dnl As a special exception, the respective Autoconf Macro's copyright owner
-dnl gives unlimited permission to copy, distribute and modify the configure
-dnl scripts that are the output of Autoconf when processing the Macro. You
-dnl need not follow the terms of the GNU General Public License when using
-dnl or distributing such scripts, even though portions of the text of the
-dnl Macro appear in them. The GNU General Public License (GPL) does govern
-dnl all other use of the material that constitutes the Autoconf Macro.
-dnl
-dnl This special exception to the GPL applies to versions of the Autoconf
-dnl Macro released by the Autoconf Archive. When you make and distribute a
-dnl modified version of the Autoconf Macro, you may extend this special
-dnl exception to the GPL to apply to your modified version as well.
-
-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}"
-
-dnl
-dnl First, check for the possibility that everything we need is already in
-dnl GL_LIBS.
-dnl
-LIBS="${GL_LIBS} ${ax_save_LIBS}"
-dnl
-dnl libGLU typically links with libstdc++ on POSIX platforms.
-dnl However, setting the language to C++ means that test program
-dnl source is named "conftest.cc"; and Microsoft cl doesn't know what
-dnl to do with such a file.
-dnl
-AC_LANG_PUSH([C++])
-AS_IF([test X$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} ${GL_LIBS}"])])
-AC_SUBST([GLU_CFLAGS])
-AC_SUBST([GLU_LIBS])
-
-dnl
-dnl Some versions of Mac OS X include a broken interpretation of the GLU
-dnl tesselation callback function signature.
-dnl
-AS_IF([test "X$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])])])
-])
-
-dnl ---------------------------------------------------------------------------
-dnl Available from the GNU Autoconf Macro Archive at:
-dnl http://www.gnu.org/software/ac-archive/ax_check_glut.html
-dnl ---------------------------------------------------------------------------
-
-dnl
-dnl SYNOPSIS
-dnl
-dnl AX_CHECK_GLUT
-dnl
-dnl DESCRIPTION
-dnl
-dnl Check for GLUT. If GLUT is found, the required compiler and linker flags
-dnl are included in the output variables "GLUT_CFLAGS" and "GLUT_LIBS",
-dnl respectively. If GLUT is not found, "no_glut" is set to "yes".
-dnl
-dnl If the header "GL/glut.h" is found, "HAVE_GL_GLUT_H" is defined. If the
-dnl header "GLUT/glut.h" is found, HAVE_GLUT_GLUT_H is defined. These
-dnl preprocessor definitions may not be mutually exclusive.
-dnl
-dnl LICENSE
-dnl
-dnl Copyright (c) 2009 Braden McDaniel <braden@endoframe.com>
-dnl
-dnl This program is free software; you can redistribute it and/or modify it
-dnl under the terms of the GNU General Public License as published by the
-dnl Free Software Foundation; either version 2 of the License, or (at your
-dnl option) any later version.
-dnl
-dnl This program is distributed in the hope that it will be useful, but
-dnl WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-dnl Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License along
-dnl with this program. If not, see <http://www.gnu.org/licenses/>.
-dnl
-dnl As a special exception, the respective Autoconf Macro's copyright owner
-dnl gives unlimited permission to copy, distribute and modify the configure
-dnl scripts that are the output of Autoconf when processing the Macro. You
-dnl need not follow the terms of the GNU General Public License when using
-dnl or distributing such scripts, even though portions of the text of the
-dnl Macro appear in them. The GNU General Public License (GPL) does govern
-dnl all other use of the material that constitutes the Autoconf Macro.
-dnl
-dnl This special exception to the GPL applies to versions of the Autoconf
-dnl Macro released by the Autoconf Archive. When you make and distribute a
-dnl modified version of the Autoconf Macro, you may extend this special
-dnl exception to the GPL to apply to your modified version as well.
-
-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()]])])
-
-dnl
-dnl If X is present, assume GLUT depends on it.
-dnl
-AS_IF([test X$no_x != Xyes],
- [GLUT_LIBS="${X_PRE_LIBS} -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
-
-dnl ---------------------------------------------------------------------------
-dnl Available from the GNU Autoconf Macro Archive at:
-dnl http://www.gnu.org/software/autoconf-archive/ax_pthread.html
-dnl ---------------------------------------------------------------------------
-
-dnl SYNOPSIS
-dnl
-dnl AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
-dnl
-dnl DESCRIPTION
-dnl
-dnl This macro figures out how to build C programs using POSIX threads. It
-dnl sets the PTHREAD_LIBS output variable to the threads library and linker
-dnl flags, and the PTHREAD_CFLAGS output variable to any special C compiler
-dnl flags that are needed. (The user can also force certain compiler
-dnl flags/libs to be tested by setting these environment variables.)
-dnl
-dnl Also sets PTHREAD_CC to any special C compiler that is needed for
-dnl multi-threaded programs (defaults to the value of CC otherwise). (This
-dnl is necessary on AIX to use the special cc_r compiler alias.)
-dnl
-dnl NOTE: You are assumed to not only compile your program with these flags,
-dnl but also link it with them as well. e.g. you should link with
-dnl $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
-dnl
-dnl If you are only building threads programs, you may wish to use these
-dnl variables in your default LIBS, CFLAGS, and CC:
-dnl
-dnl LIBS="$PTHREAD_LIBS $LIBS"
-dnl CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-dnl CC="$PTHREAD_CC"
-dnl
-dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
-dnl has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
-dnl (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
-dnl
-dnl ACTION-IF-FOUND is a list of shell commands to run if a threads library
-dnl is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
-dnl is not found. If ACTION-IF-FOUND is not specified, the default action
-dnl will define HAVE_PTHREAD.
-dnl
-dnl Please let the authors know if this macro fails on any platform, or if
-dnl you have any other suggestions or comments. This macro was based on work
-dnl by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
-dnl from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
-dnl Alejandro Forero Cuervo to the autoconf macro repository. We are also
-dnl grateful for the helpful feedback of numerous users.
-dnl
-dnl LICENSE
-dnl
-dnl Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
-dnl
-dnl This program is free software: you can redistribute it and/or modify it
-dnl under the terms of the GNU General Public License as published by the
-dnl Free Software Foundation, either version 3 of the License, or (at your
-dnl option) any later version.
-dnl
-dnl This program is distributed in the hope that it will be useful, but
-dnl WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-dnl Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License along
-dnl with this program. If not, see <http://www.gnu.org/licenses/>.
-dnl
-dnl As a special exception, the respective Autoconf Macro's copyright owner
-dnl gives unlimited permission to copy, distribute and modify the configure
-dnl scripts that are the output of Autoconf when processing the Macro. You
-dnl need not follow the terms of the GNU General Public License when using
-dnl or distributing such scripts, even though portions of the text of the
-dnl Macro appear in them. The GNU General Public License (GPL) does govern
-dnl all other use of the material that constitutes the Autoconf Macro.
-dnl
-dnl This special exception to the GPL applies to versions of the Autoconf
-dnl Macro released by the Autoconf Archive. When you make and distribute a
-dnl modified version of the Autoconf Macro, you may extend this special
-dnl exception to the GPL to apply to your modified version as well.
-
-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
-
-dnl We used to check for pthread.h first, but this fails if pthread.h
-dnl requires special compiler flags (e.g. on True64 or Sequent).
-dnl It gets checked for in the link test anyway.
-
-dnl First of all, check if the user has set any of the PTHREAD_LIBS,
-dnl etcetera environment variables, and if threads linking works using
-dnl 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="$save_CFLAGS"
-fi
-
-dnl We must check for the threads library under a number of different
-dnl names; the ordering is very important because some systems
-dnl (e.g. DEC) have both -lpthread and -lpthreads, where one of the
-dnl libraries is broken (non-POSIX).
-
-dnl Create a list of thread flags to try. Items starting with a "-" are
-dnl C compiler flags, and other items are library names, except for "none"
-dnl which indicates that we try without any flags at all, and "pthread-config"
-dnl which is a program returning the flags for the Pth emulation library.
-
-ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
-
-dnl The ordering *is* (sometimes) important. Some notes on the
-dnl individual items follow:
-
-dnl pthreads: AIX (must check this before -lpthread)
-dnl none: in case threads are in libc; should be tried before -Kthread and
-dnl other compiler flags to prevent continual compiler warnings
-dnl -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-dnl -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-dnl lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-dnl -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-dnl -pthreads: Solaris/gcc
-dnl -mthreads: Mingw32/gcc, Lynx/gcc
-dnl -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-dnl doesn't hurt to check since this sometimes defines pthreads too;
-dnl also defines -D_REENTRANT)
-dnl ... -mt is also the pthreads flag for HP/aCC
-dnl pthread: Linux, etcetera
-dnl --thread-safe: KAI C++
-dnl pthread-config: use pthread-config program (for GNU Pth library)
-
-case "${host_cpu}-${host_os}" in
- *solaris*)
-
- dnl On Solaris (at least, for some versions), libc contains stubbed
- dnl (non-functional) versions of the pthreads routines, so link-based
- dnl tests will erroneously succeed. (We need to link with -pthreads/-mt/
- dnl -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
- dnl a function called by this macro, so we could check for that, but
- dnl who knows whether they'll stub that too in a future libc.) So,
- dnl we'll just look for -pthreads and -lpthread first:
-
- ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
- ;;
-
- *-darwin*)
- ax_pthread_flags="-pthread $ax_pthread_flags"
- ;;
-esac
-
-if test x"$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 $PTHREAD_CFLAGS"
-
- dnl Check for various functions. We must include pthread.h,
- dnl since some functions may be macros. (On the Sequent, we
- dnl need a special flag -Kthread to make this header compile.)
- dnl We check for pthread_join because it is in -lpthread on IRIX
- dnl while pthread_create is in libc. We check for pthread_attr_init
- dnl due to DEC craziness with -lpthreads. We check for
- dnl pthread_cleanup_push because it is one of the few pthread
- dnl functions on Solaris that doesn't have a non-functional libc stub.
- dnl We try pthread_create on general principles.
- AC_TRY_LINK([#include <pthread.h>
- static void routine(void* a) {a=0;}
- static void* start_routine(void* a) {return a;}],
- [pthread_t th; pthread_attr_t attr;
- pthread_create(&th,0,start_routine,0);
- pthread_join(th, 0);
- pthread_attr_init(&attr);
- pthread_cleanup_push(routine, 0);
- pthread_cleanup_pop(0); ],
- [ax_pthread_ok=yes])
-
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
-
- AC_MSG_RESULT($ax_pthread_ok)
- if test "x$ax_pthread_ok" = xyes; then
- break;
- fi
-
- PTHREAD_LIBS=""
- PTHREAD_CFLAGS=""
-done
-fi
-
-dnl Various other checks:
-if test "x$ax_pthread_ok" = xyes; then
- save_LIBS="$LIBS"
- LIBS="$PTHREAD_LIBS $LIBS"
- save_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-
- dnl Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
- AC_MSG_CHECKING([for joinable pthread attribute])
- attr_name=unknown
- for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
- AC_TRY_LINK([#include <pthread.h>], [int attr=$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="$save_CFLAGS"
-
- dnl More AIX lossage: must compile with xlc_r or cc_r
- if test x"$GCC" != xyes; then
- AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
- else
- PTHREAD_CC=$CC
- fi
-else
- PTHREAD_CC="$CC"
-fi
-
-AC_SUBST(PTHREAD_LIBS)
-AC_SUBST(PTHREAD_CFLAGS)
-AC_SUBST(PTHREAD_CC)
-
-dnl Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$ax_pthread_ok" = xyes; then
- ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,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