1 # AST_GCC_ATTRIBUTE([attribute name])
3 AC_DEFUN([AST_GCC_ATTRIBUTE],
5 AC_MSG_CHECKING(for compiler 'attribute $1' support)
7 AC_LANG_PROGRAM([static int __attribute__(($1)) test(void) {}],
10 AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),
14 # AST_EXT_LIB_SETUP([package symbol name], [package friendly name], [package option name], [additional help text])
16 AC_DEFUN([AST_EXT_LIB_SETUP],
20 AC_ARG_WITH([$3], AC_HELP_STRING([--with-$3=PATH],[use $2 files in PATH $4]),[
36 AC_SUBST([$1_INCLUDE])
41 # AST_EXT_LIB_CHECK([package symbol name], [package library name], [function to check], [package header], [additional LIB data])
43 AC_DEFUN([AST_EXT_LIB_CHECK],
45 if test "${USE_$1}" != "no"; then
47 if test "x${$1_DIR}" != "x"; then
48 if test -d ${$1_DIR}/lib; then
49 pbxlibdir="-L${$1_DIR}/lib"
51 pbxlibdir="-L${$1_DIR}"
54 AC_CHECK_LIB([$2], [$3], [AST_$1_FOUND=yes], [AST_$1_FOUND=no], ${pbxlibdir} $5)
56 if test "${AST_$1_FOUND}" = "yes"; then
59 if test "x${$1_DIR}" != "x"; then
60 $1_LIB="${pbxlibdir} ${$1_LIB}"
61 $1_INCLUDE="-I${$1_DIR}/include"
62 saved_cppflags="${CPPFLAGS}"
63 CPPFLAGS="${CPPFLAGS} -I${$1_DIR}/include"
64 if test "x$4" != "x" ; then
65 AC_CHECK_HEADER([${$1_DIR}/include/$4], [$1_HEADER_FOUND=1], [$1_HEADER_FOUND=0])
67 CPPFLAGS="${saved_cppflags}"
69 if test "x$4" != "x" ; then
70 AC_CHECK_HEADER([$4], [$1_HEADER_FOUND=1], [$1_HEADER_FOUND=0])
73 if test "x${$1_HEADER_FOUND}" = "x0" ; then
74 if test -n "${$1_MANDATORY}" ;
77 AC_MSG_NOTICE([*** It appears that you do not have the $2 development package installed.])
78 AC_MSG_NOTICE([*** Please install it to include ${$1_DESCRIP} support, or re-run configure])
79 AC_MSG_NOTICE([*** without explicitly specifying --with-${$1_OPTION}])
87 AC_DEFINE_UNQUOTED([HAVE_$1], 1, [Define to indicate the ${$1_DESCRIP} library])
89 elif test -n "${$1_MANDATORY}";
92 AC_MSG_NOTICE([*** The ${$1_DESCRIP} installation on this system appears to be broken.])
93 AC_MSG_NOTICE([*** Either correct the installation, or run configure])
94 AC_MSG_NOTICE([*** without explicitly specifying --with-${$1_OPTION}])
102 [AST_CHECK_GNU_MAKE], [AC_CACHE_CHECK(for GNU make, GNU_MAKE,
103 GNU_MAKE='Not Found' ;
104 GNU_MAKE_VERSION_MAJOR=0 ;
105 GNU_MAKE_VERSION_MINOR=0 ;
106 for a in make gmake gnumake ; do
107 if test -z "$a" ; then continue ; fi ;
108 if ( sh -c "$a --version" 2> /dev/null | grep GNU 2>&1 > /dev/null ) ; then
110 GNU_MAKE_VERSION_MAJOR=`$GNU_MAKE --version | grep "GNU Make" | cut -f3 -d' ' | cut -f1 -d'.'`
111 GNU_MAKE_VERSION_MINOR=`$GNU_MAKE --version | grep "GNU Make" | cut -f2 -d'.' | cut -c1-2`
116 if test "x$GNU_MAKE" = "xNot Found" ; then
117 AC_MSG_ERROR( *** Please install GNU make. It is required to build Asterisk!)
129 if test "${PWLIBDIR:-unset}" != "unset" ; then
130 AC_CHECK_HEADER(${PWLIBDIR}/version.h, HAS_PWLIB=1, )
132 if test "${HAS_PWLIB:-unset}" = "unset" ; then
133 if test "${OPENH323DIR:-unset}" != "unset"; then
134 AC_CHECK_HEADER(${OPENH323DIR}/../pwlib/version.h, HAS_PWLIB=1, )
136 if test "${HAS_PWLIB:-unset}" != "unset" ; then
137 PWLIBDIR="${OPENH323DIR}/../pwlib"
139 AC_CHECK_HEADER(${HOME}/pwlib/include/ptlib.h, HAS_PWLIB=1, )
140 if test "${HAS_PWLIB:-unset}" != "unset" ; then
141 PWLIBDIR="${HOME}/pwlib"
143 AC_CHECK_HEADER(/usr/local/include/ptlib.h, HAS_PWLIB=1, )
144 if test "${HAS_PWLIB:-unset}" != "unset" ; then
145 AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/local/bin)
146 if test "${PTLIB_CONFIG:-unset}" = "unset" ; then
147 AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/local/share/pwlib/make)
149 PWLIB_INCDIR="/usr/local/include"
150 PWLIB_LIBDIR=`${PTLIB_CONFIG} --pwlibdir`
151 if test "${PWLIB_LIBDIR:-unset}" = "unset"; then
152 if test "x$LIB64" != "x"; then
153 PWLIB_LIBDIR="/usr/local/lib64"
155 PWLIB_LIBDIR="/usr/local/lib"
158 PWLIB_LIB=`${PTLIB_CONFIG} --ldflags --libs`
159 PWLIB_LIB="-L${PWLIB_LIBDIR} `echo ${PWLIB_LIB}`"
161 AC_CHECK_HEADER(/usr/include/ptlib.h, HAS_PWLIB=1, )
162 if test "${HAS_PWLIB:-unset}" != "unset" ; then
163 AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/share/pwlib/make)
164 PWLIB_INCDIR="/usr/include"
165 PWLIB_LIBDIR=`${PTLIB_CONFIG} --pwlibdir`
166 if test "${PWLIB_LIBDIR:-unset}" = "unset"; then
167 if test "x$LIB64" != "x"; then
168 PWLIB_LIBDIR="/usr/lib64"
170 PWLIB_LIBDIR="/usr/lib"
173 PWLIB_LIB=`${PTLIB_CONFIG} --ldflags --libs`
174 PWLIB_LIB="-L${PWLIB_LIBDIR} `echo ${PWLIB_LIB}`"
181 #if test "${HAS_PWLIB:-unset}" = "unset" ; then
182 # echo "Cannot find pwlib - please install or set PWLIBDIR and try again"
186 if test "${HAS_PWLIB:-unset}" != "unset" ; then
187 if test "${PWLIBDIR:-unset}" = "unset" ; then
188 if test "${PTLIB_CONFIG:-unset}" != "unset" ; then
189 PWLIBDIR=`$PTLIB_CONFIG --prefix`
191 echo "Cannot find ptlib-config - please install and try again"
196 if test "x$PWLIBDIR" = "x/usr" -o "x$PWLIBDIR" = "x/usr/"; then
197 PWLIBDIR="/usr/share/pwlib"
198 PWLIB_INCDIR="/usr/include"
199 if test "x$LIB64" != "x"; then
200 PWLIB_LIBDIR="/usr/lib64"
202 PWLIB_LIBDIR="/usr/lib"
205 if test "x$PWLIBDIR" = "x/usr/local" -o "x$PWLIBDIR" = "x/usr/"; then
206 PWLIBDIR="/usr/local/share/pwlib"
207 PWLIB_INCDIR="/usr/local/include"
208 if test "x$LIB64" != "x"; then
209 PWLIB_LIBDIR="/usr/local/lib64"
211 PWLIB_LIBDIR="/usr/local/lib"
215 if test "${PWLIB_INCDIR:-unset}" = "unset"; then
216 PWLIB_INCDIR="${PWLIBDIR}/include"
218 if test "${PWLIB_LIBDIR:-unset}" = "unset"; then
219 PWLIB_LIBDIR="${PWLIBDIR}/lib"
223 AC_SUBST([PWLIB_INCDIR])
224 AC_SUBST([PWLIB_LIBDIR])
231 [AST_CHECK_OPENH323_PLATFORM], [
234 linux*) PWLIB_OSTYPE=linux ;
236 freebsd* ) PWLIB_OSTYPE=FreeBSD ;
238 openbsd* ) PWLIB_OSTYPE=OpenBSD ;
239 ENDLDLIBS="-lossaudio" ;
241 netbsd* ) PWLIB_OSTYPE=NetBSD ;
242 ENDLDLIBS="-lossaudio" ;
244 solaris* | sunos* ) PWLIB_OSTYPE=solaris ;
246 darwin* ) PWLIB_OSTYPE=Darwin ;
248 beos*) PWLIB_OSTYPE=beos ;
249 STDCCFLAGS="$STDCCFLAGS -D__BEOS__"
251 cygwin*) PWLIB_OSTYPE=cygwin ;
253 mingw*) PWLIB_OSTYPE=mingw ;
254 STDCCFLAGS="$STDCCFLAGS -mms-bitfields" ;
255 ENDLDLIBS="-lwinmm -lwsock32 -lsnmpapi -lmpr -lcomdlg32 -lgdi32 -lavicap32" ;
257 * ) PWLIB_OSTYPE="$host_os" ;
258 AC_MSG_WARN("OS $PWLIB_OSTYPE not recognized - proceed with caution!") ;
264 x86 | i686 | i586 | i486 | i386 ) PWLIB_MACHTYPE=x86
267 x86_64) PWLIB_MACHTYPE=x86_64 ;
272 alpha | alphaev56 | alphaev6 | alphaev67 | alphaev7) PWLIB_MACHTYPE=alpha ;
276 sparc ) PWLIB_MACHTYPE=sparc ;
279 powerpc ) PWLIB_MACHTYPE=ppc ;
282 ppc ) PWLIB_MACHTYPE=ppc ;
285 powerpc64 ) PWLIB_MACHTYPE=ppc64 ;
290 ppc64 ) PWLIB_MACHTYPE=ppc64 ;
295 ia64) PWLIB_MACHTYPE=ia64 ;
299 s390x) PWLIB_MACHTYPE=s390x ;
304 s390) PWLIB_MACHTYPE=s390 ;
307 * ) PWLIB_MACHTYPE="$host_cpu";
308 AC_MSG_WARN("CPU $PWLIB_MACHTYPE not recognized - proceed with caution!") ;;
311 PWLIB_PLATFORM="${PWLIB_OSTYPE}_${PWLIB_MACHTYPE}"
313 AC_SUBST([PWLIB_PLATFORM])
318 [AST_CHECK_OPENH323], [
322 if test "${OPENH323DIR:-unset}" != "unset" ; then
323 AC_CHECK_HEADER(${OPENH323DIR}/version.h, HAS_OPENH323=1, )
325 if test "${HAS_OPENH323:-unset}" = "unset" ; then
326 AC_CHECK_HEADER(${PWLIBDIR}/../openh323/version.h, OPENH323DIR="${PWLIBDIR}/../openh323"; HAS_OPENH323=1, )
327 if test "${HAS_OPENH323:-unset}" != "unset" ; then
328 OPENH323DIR="${PWLIBDIR}/../openh323"
329 saved_cppflags="${CPPFLAGS}"
330 CPPFLAGS="${CPPFLAGS} -I${PWLIB_INCDIR}/openh323 -I${PWLIB_INCDIR}"
331 AC_CHECK_HEADER(${OPENH323DIR}/include/h323.h, , OPENH323_INCDIR="${PWLIB_INCDIR}/openh323"; OPENH323_LIBDIR="${PWLIB_LIBDIR}", [#include <ptlib.h>])
332 CPPFLAGS="${saved_cppflags}"
334 saved_cppflags="${CPPFLAGS}"
335 CPPFLAGS="${CPPFLAGS} -I${HOME}/openh323/include -I${PWLIB_INCDIR}"
336 AC_CHECK_HEADER(${HOME}/openh323/include/h323.h, HAS_OPENH323=1, )
337 CPPFLAGS="${saved_cppflags}"
338 if test "${HAS_OPENH323:-unset}" != "unset" ; then
339 OPENH323DIR="${HOME}/openh323"
341 saved_cppflags="${CPPFLAGS}"
342 CPPFLAGS="${CPPFLAGS} -I/usr/local/include/openh323 -I${PWLIB_INCDIR}"
343 AC_CHECK_HEADER(/usr/local/include/openh323/h323.h, HAS_OPENH323=1, )
344 CPPFLAGS="${saved_cppflags}"
345 if test "${HAS_OPENH323:-unset}" != "unset" ; then
346 OPENH323DIR="/usr/local/share/openh323"
347 OPENH323_INCDIR="/usr/local/include/openh323"
348 if test "x$LIB64" != "x"; then
349 OPENH323_LIBDIR="/usr/local/lib64"
351 OPENH323_LIBDIR="/usr/local/lib"
354 saved_cppflags="${CPPFLAGS}"
355 CPPFLAGS="${CPPFLAGS} -I/usr/include/openh323 -I${PWLIB_INCDIR}"
356 AC_CHECK_HEADER(/usr/include/openh323/h323.h, HAS_OPENH323=1, , [#include <ptlib.h>])
357 CPPFLAGS="${saved_cppflags}"
358 if test "${HAS_OPENH323:-unset}" != "unset" ; then
359 OPENH323DIR="/usr/share/openh323"
360 OPENH323_INCDIR="/usr/include/openh323"
361 if test "x$LIB64" != "x"; then
362 OPENH323_LIBDIR="/usr/lib64"
364 OPENH323_LIBDIR="/usr/lib"
372 if test "${HAS_OPENH323:-unset}" != "unset" ; then
373 if test "${OPENH323_INCDIR:-unset}" = "unset"; then
374 OPENH323_INCDIR="${OPENH323DIR}/include"
376 if test "${OPENH323_LIBDIR:-unset}" = "unset"; then
377 OPENH323_LIBDIR="${OPENH323DIR}/lib"
380 OPENH323_LIBDIR="`cd ${OPENH323_LIBDIR}; pwd`"
381 OPENH323_INCDIR="`cd ${OPENH323_INCDIR}; pwd`"
382 OPENH323DIR="`cd ${OPENH323DIR}; pwd`"
384 AC_SUBST([OPENH323DIR])
385 AC_SUBST([OPENH323_INCDIR])
386 AC_SUBST([OPENH323_LIBDIR])
393 [AST_CHECK_PWLIB_VERSION], [
394 if test "${HAS_$2:-unset}" != "unset"; then
395 $2_VERSION=`grep "$2_VERSION" ${$2_INCDIR}/$3 | cut -f2 -d ' ' | sed -e 's/"//g'`
396 $2_MAJOR_VERSION=`echo ${$2_VERSION} | cut -f1 -d.`
397 $2_MINOR_VERSION=`echo ${$2_VERSION} | cut -f2 -d.`
398 $2_BUILD_NUMBER=`echo ${$2_VERSION} | cut -f3 -d.`
399 let $2_VER=${$2_MAJOR_VERSION}*10000+${$2_MINOR_VERSION}*100+${$2_BUILD_NUMBER}
400 let $2_REQ=$4*10000+$5*100+$6
402 AC_MSG_CHECKING(if $1 version ${$2_VERSION} is compatible with chan_h323)
403 if test ${$2_VER} -lt ${$2_REQ}; then
414 [AST_CHECK_PWLIB_BUILD], [
415 if test "${HAS_$2:-unset}" != "unset"; then
416 AC_MSG_CHECKING($1 installation validity)
418 saved_cppflags="${CPPFLAGS}"
420 if test "${$2_LIB:-unset}" != "unset"; then
421 LIBS="${LIBS} ${$2_LIB} $7"
423 LIBS="${LIBS} -L${$2_LIBDIR} -l${PLATFORM_$2} $7"
425 CPPFLAGS="${CPPFLAGS} -I${$2_INCDIR} $6"
430 [AC_LANG_PROGRAM([$4],[$5])],
442 CPPFLAGS="${saved_cppflags}"
444 if test "${ac_cv_lib_$2}" = "yes"; then
445 if test "${$2_LIB:-undef}" = "undef"; then
446 if test "${$2_LIBDIR}" != "" -a "${$2_LIBDIR}" != "/usr/lib"; then
447 $2_LIB="-L${$2_LIBDIR} -l${PLATFORM_$2}"
449 $2_LIB="-l${PLATFORM_$2}"
452 if test "${$2_INCDIR}" != "" -a "${$2_INCDIR}" != "/usr/include"; then
453 $2_INCLUDE="-I${$2_INCDIR}"
456 AC_DEFINE([HAVE_$2], 1, [$3])
462 [AST_CHECK_OPENH323_BUILD], [
463 if test "${HAS_OPENH323:-unset}" != "unset"; then
464 AC_MSG_CHECKING(OpenH323 build option)
466 prefixes="h323_${PWLIB_PLATFORM}_ h323_ openh323"
467 for pfx in $prefixes; do
468 files=`ls -l ${OPENH323_LIBDIR}/lib${pfx}*.so* 2>/dev/null`
470 if test -n "$files"; then
472 if test -f $f -a ! -L $f; then
473 libfile=`basename $f`
478 if test -n "$libfile"; then
483 if test "${libfile:-unset}" != "unset"; then
484 OPENH323_SUFFIX=`eval "echo ${libfile} | sed -e 's/lib${OPENH323_PREFIX}\(@<:@^.@:>@*\)\..*/\1/'"`
486 case "${OPENH323_SUFFIX}" in
488 OPENH323_BUILD="notrace";;
490 OPENH323_BUILD="opt";;
492 OPENH323_BUILD="debug";;
494 if test "${OPENH323_PREFIX:-undef}" = "openh323"; then
495 notrace=`eval "grep NOTRACE ${OPENH323DIR}/openh323u.mak | grep = | sed -e 's/@<:@A-Z0-9_@:>@*@<:@ @:>@*=@<:@ @:>@*//'"`
496 if test "x$notrace" = "x"; then
499 if test "$notrace" -ne 0; then
500 OPENH323_BUILD="notrace"
504 OPENH323_LIB="-l${OPENH323_PREFIX}"
506 OPENH323_BUILD="notrace"
510 AC_MSG_RESULT(${OPENH323_BUILD})
512 AC_SUBST([OPENH323_SUFFIX])
513 AC_SUBST([OPENH323_BUILD])
520 AN_FUNCTION([fork], [AST_FUNC_FORK])
521 AN_FUNCTION([vfork], [AST_FUNC_FORK])
522 AC_DEFUN([AST_FUNC_FORK],
523 [AC_REQUIRE([AC_TYPE_PID_T])dnl
524 AC_CHECK_HEADERS(vfork.h)
525 AC_CHECK_FUNCS(fork vfork)
526 if test "x$ac_cv_func_fork" = xyes; then
529 ac_cv_func_fork_works=$ac_cv_func_fork
531 if test "x$ac_cv_func_fork_works" = xcross; then
533 *-*-amigaos* | *-*-msdosdjgpp* | *-*-uclinux* | *-*-linux-uclibc* )
534 # Override, as these systems have only a dummy fork() stub
535 ac_cv_func_fork_works=no
538 ac_cv_func_fork_works=yes
541 AC_MSG_WARN([result $ac_cv_func_fork_works guessed because of cross compilation])
543 ac_cv_func_vfork_works=$ac_cv_func_vfork
544 if test "x$ac_cv_func_vfork" = xyes; then
547 if test "x$ac_cv_func_fork_works" = xcross; then
548 ac_cv_func_vfork_works=$ac_cv_func_vfork
549 AC_MSG_WARN([result $ac_cv_func_vfork_works guessed because of cross compilation])
552 if test "x$ac_cv_func_vfork_works" = xyes; then
553 AC_DEFINE(HAVE_WORKING_VFORK, 1, [Define to 1 if `vfork' works.])
555 AC_DEFINE(vfork, fork, [Define as `fork' if `vfork' does not work.])
557 if test "x$ac_cv_func_fork_works" = xyes; then
558 AC_DEFINE(HAVE_WORKING_FORK, 1, [Define to 1 if `fork' works.])
565 AC_DEFUN([_AST_FUNC_FORK],
566 [AC_CACHE_CHECK(for working fork, ac_cv_func_fork_works,
568 [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
570 /* By Ruediger Kuhlmann. */
573 [ac_cv_func_fork_works=yes],
574 [ac_cv_func_fork_works=no],
575 [ac_cv_func_fork_works=cross])])]
580 # find the pathname to the GNU or non-GNU linker
581 AC_DEFUN([AST_PROG_LD],
582 [AC_ARG_WITH([gnu-ld],
583 [AC_HELP_STRING([--with-gnu-ld],
584 [assume the C compiler uses GNU ld @<:@default=no@:>@])],
585 [test "$withval" = no || with_gnu_ld=yes],
587 AC_REQUIRE([AST_PROG_SED])dnl
588 AC_REQUIRE([AC_PROG_CC])dnl
589 AC_REQUIRE([AC_CANONICAL_HOST])dnl
590 AC_REQUIRE([AC_CANONICAL_BUILD])dnl
592 if test "$GCC" = yes; then
593 # Check if gcc -print-prog-name=ld gives a path.
594 AC_MSG_CHECKING([for ld used by $CC])
597 # gcc leaves a trailing carriage return which upsets mingw
598 ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
600 ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
603 # Accept absolute paths.
604 [[\\/]]* | ?:[[\\/]]*)
605 re_direlt='/[[^/]][[^/]]*/\.\./'
606 # Canonicalize the pathname of ld
607 ac_prog=`echo $ac_prog| $SED 's%\\\\%/%g'`
608 while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
609 ac_prog=`echo $ac_prog| $SED "s%$re_direlt%/%"`
611 test -z "$LD" && LD="$ac_prog"
614 # If it fails, then pretend we aren't using GCC.
618 # If it is relative, then search for the first ld in PATH.
622 elif test "$with_gnu_ld" = yes; then
623 AC_MSG_CHECKING([for GNU ld])
625 AC_MSG_CHECKING([for non-GNU ld])
627 AC_CACHE_VAL(lt_cv_path_LD,
628 [if test -z "$LD"; then
629 lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
630 for ac_dir in $PATH; do
632 test -z "$ac_dir" && ac_dir=.
633 if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
634 lt_cv_path_LD="$ac_dir/$ac_prog"
635 # Check to see if the program is GNU ld. I'd rather use --version,
636 # but apparently some variants of GNU ld only accept -v.
637 # Break only if it was the GNU/non-GNU ld that we prefer.
638 case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
639 *GNU* | *'with BFD'*)
640 test "$with_gnu_ld" != no && break
643 test "$with_gnu_ld" != yes && break
650 lt_cv_path_LD="$LD" # Let the user override the test with a path.
653 if test -n "$LD"; then
658 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
665 AC_DEFUN([AST_PROG_LD_GNU],
666 [AC_REQUIRE([AST_PROG_EGREP])dnl
667 AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
668 [# I'd rather use --version here, but apparently some GNU lds only accept -v.
669 case `$LD -v 2>&1 </dev/null` in
670 *GNU* | *'with BFD'*)
671 lt_cv_prog_gnu_ld=yes
677 with_gnu_ld=$lt_cv_prog_gnu_ld
682 m4_ifndef([AST_PROG_EGREP], [AC_DEFUN([AST_PROG_EGREP],
683 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
684 [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
685 then ac_cv_prog_egrep='grep -E'
686 else ac_cv_prog_egrep='egrep'
688 EGREP=$ac_cv_prog_egrep
690 ])]) # AST_PROG_EGREP
694 # Check for a fully functional sed program that truncates
695 # as few characters as possible. Prefer GNU sed if found.
696 AC_DEFUN([AST_PROG_SED],
697 [AC_CACHE_CHECK([for a sed that does not truncate output], ac_cv_path_SED,
698 [dnl ac_script should not contain more than 99 commands (for HP-UX sed),
699 dnl but more than about 7000 bytes, to catch a limit in Solaris 8 /usr/ucb/sed.
700 ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
701 for ac_i in 1 2 3 4 5 6 7; do
702 ac_script="$ac_script$as_nl$ac_script"
704 echo "$ac_script" | sed 99q >conftest.sed
705 $as_unset ac_script || ac_script=
706 _AC_PATH_PROG_FEATURE_CHECK(SED, [sed gsed],
707 [_AC_FEATURE_CHECK_LENGTH([ac_path_SED], [ac_cv_path_SED],
708 ["$ac_path_SED" -f conftest.sed])])])
709 SED="$ac_cv_path_SED"
714 dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
716 dnl @summary figure out how to build C programs using POSIX threads
718 dnl This macro figures out how to build C programs using POSIX threads.
719 dnl It sets the PTHREAD_LIBS output variable to the threads library and
720 dnl linker flags, and the PTHREAD_CFLAGS output variable to any special
721 dnl C compiler flags that are needed. (The user can also force certain
722 dnl compiler flags/libs to be tested by setting these environment
725 dnl Also sets PTHREAD_CC to any special C compiler that is needed for
726 dnl multi-threaded programs (defaults to the value of CC otherwise).
727 dnl (This is necessary on AIX to use the special cc_r compiler alias.)
729 dnl NOTE: You are assumed to not only compile your program with these
730 dnl flags, but also link it with them as well. e.g. you should link
731 dnl with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS
734 dnl If you are only building threads programs, you may wish to use
735 dnl these variables in your default LIBS, CFLAGS, and CC:
737 dnl LIBS="$PTHREAD_LIBS $LIBS"
738 dnl CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
741 dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
742 dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
743 dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
745 dnl ACTION-IF-FOUND is a list of shell commands to run if a threads
746 dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to
747 dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the
748 dnl default action will define HAVE_PTHREAD.
750 dnl Please let the authors know if this macro fails on any platform, or
751 dnl if you have any other suggestions or comments. This macro was based
752 dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with
753 dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros
754 dnl posted by Alejandro Forero Cuervo to the autoconf macro repository.
755 dnl We are also grateful for the helpful feedback of numerous users.
757 dnl @category InstalledPackages
758 dnl @author Steven G. Johnson <stevenj@alum.mit.edu>
759 dnl @version 2006-05-29
760 dnl @license GPLWithACException
762 AC_DEFUN([ACX_PTHREAD], [
763 AC_REQUIRE([AC_CANONICAL_HOST])
768 # We used to check for pthread.h first, but this fails if pthread.h
769 # requires special compiler flags (e.g. on True64 or Sequent).
770 # It gets checked for in the link test anyway.
772 # First of all, check if the user has set any of the PTHREAD_LIBS,
773 # etcetera environment variables, and if threads linking works using
775 if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
776 save_CFLAGS="$CFLAGS"
777 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
779 LIBS="$PTHREAD_LIBS $LIBS"
780 AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
781 AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
782 AC_MSG_RESULT($acx_pthread_ok)
783 if test x"$acx_pthread_ok" = xno; then
788 CFLAGS="$save_CFLAGS"
791 # We must check for the threads library under a number of different
792 # names; the ordering is very important because some systems
793 # (e.g. DEC) have both -lpthread and -lpthreads, where one of the
794 # libraries is broken (non-POSIX).
796 # Create a list of thread flags to try. Items starting with a "-" are
797 # C compiler flags, and other items are library names, except for "none"
798 # which indicates that we try without any flags at all, and "pthread-config"
799 # which is a program returning the flags for the Pth emulation library.
801 acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
803 # The ordering *is* (sometimes) important. Some notes on the
804 # individual items follow:
806 # pthreads: AIX (must check this before -lpthread)
807 # none: in case threads are in libc; should be tried before -Kthread and
808 # other compiler flags to prevent continual compiler warnings
809 # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
810 # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
811 # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
812 # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
813 # -pthreads: Solaris/gcc
814 # -mthreads: Mingw32/gcc, Lynx/gcc
815 # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
816 # doesn't hurt to check since this sometimes defines pthreads too;
817 # also defines -D_REENTRANT)
818 # ... -mt is also the pthreads flag for HP/aCC
819 # pthread: Linux, etcetera
820 # --thread-safe: KAI C++
821 # pthread-config: use pthread-config program (for GNU Pth library)
823 case "${host_cpu}-${host_os}" in
826 # On Solaris (at least, for some versions), libc contains stubbed
827 # (non-functional) versions of the pthreads routines, so link-based
828 # tests will erroneously succeed. (We need to link with -pthreads/-mt/
829 # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
830 # a function called by this macro, so we could check for that, but
831 # who knows whether they'll stub that too in a future libc.) So,
832 # we'll just look for -pthreads and -lpthread first:
834 acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
838 if test x"$acx_pthread_ok" = xno; then
839 for flag in $acx_pthread_flags; do
843 AC_MSG_CHECKING([whether pthreads work without any flags])
847 AC_MSG_CHECKING([whether pthreads work with $flag])
848 PTHREAD_CFLAGS="$flag"
852 AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
853 if test x"$acx_pthread_config" = xno; then continue; fi
854 PTHREAD_CFLAGS="`pthread-config --cflags`"
855 PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
859 AC_MSG_CHECKING([for the pthreads library -l$flag])
860 PTHREAD_LIBS="-l$flag"
865 save_CFLAGS="$CFLAGS"
866 LIBS="$PTHREAD_LIBS $LIBS"
867 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
869 # Check for various functions. We must include pthread.h,
870 # since some functions may be macros. (On the Sequent, we
871 # need a special flag -Kthread to make this header compile.)
872 # We check for pthread_join because it is in -lpthread on IRIX
873 # while pthread_create is in libc. We check for pthread_attr_init
874 # due to DEC craziness with -lpthreads. We check for
875 # pthread_cleanup_push because it is one of the few pthread
876 # functions on Solaris that doesn't have a non-functional libc stub.
877 # We try pthread_create on general principles.
878 AC_TRY_LINK([#include <pthread.h>],
879 [pthread_t th; pthread_join(th, 0);
880 pthread_attr_init(0); pthread_cleanup_push(0, 0);
881 pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
882 [acx_pthread_ok=yes])
885 CFLAGS="$save_CFLAGS"
887 AC_MSG_RESULT($acx_pthread_ok)
888 if test "x$acx_pthread_ok" = xyes; then
897 # Various other checks:
898 if test "x$acx_pthread_ok" = xyes; then
900 LIBS="$PTHREAD_LIBS $LIBS"
901 save_CFLAGS="$CFLAGS"
902 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
904 # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
905 AC_MSG_CHECKING([for joinable pthread attribute])
907 for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
908 AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
909 [attr_name=$attr; break])
911 AC_MSG_RESULT($attr_name)
912 if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
913 AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
914 [Define to necessary symbol if this constant
915 uses a non-standard name on your system.])
918 AC_MSG_CHECKING([if more special flags are required for pthreads])
920 case "${host_cpu}-${host_os}" in
921 *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
922 *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
924 AC_MSG_RESULT(${flag})
925 if test "x$flag" != xno; then
926 PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
930 CFLAGS="$save_CFLAGS"
932 # More AIX lossage: must compile with xlc_r or cc_r
933 if test x"$GCC" != xyes; then
934 AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC})
942 AC_SUBST(PTHREAD_LIBS)
943 AC_SUBST(PTHREAD_CFLAGS)
946 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
947 if test x"$acx_pthread_ok" = xyes; then
948 ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])