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diff --git a/tiff/m4/acinclude.m4 b/tiff/m4/acinclude.m4 new file mode 100755 index 0000000..b54feb7 --- /dev/null +++ b/tiff/m4/acinclude.m4 @@ -0,0 +1,851 @@ +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 |