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Diffstat (limited to 'tiff/m4/acinclude.m4')
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diff --git a/tiff/m4/acinclude.m4 b/tiff/m4/acinclude.m4 deleted file mode 100755 index b54feb7..0000000 --- a/tiff/m4/acinclude.m4 +++ /dev/null @@ -1,851 +0,0 @@ -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"). 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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 (*)()". 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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. 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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 |