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Check whether pthreads are available without any options before checking

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that -Kpthread is supported. Fixes #470781.
Port to autoconf 2.52.
This commit is contained in:
Martin v. Löwis 2001-10-15 08:06:29 +00:00
parent cdc632cfdb
commit a5f73f9bab
2 changed files with 529 additions and 410 deletions
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877
configure vendored
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62
configure.in
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@ -152,9 +152,18 @@ AC_MSG_RESULT($with_cxx)
dnl The following fragment works similar to AC_PROG_CXX.
dnl It does not fail if CXX is not found, and it is not executed if
dnl --with-cxx was given.
dnl --without-cxx was given.
dnl Finally, it does not test whether CXX is g++.
dnl Autoconf 2.5x does not have AC_PROG_CXX_WORKS anymore
ifdef([AC_PROG_CXX_WORKS],[],
[AC_DEFUN([AC_PROG_CXX_WORKS],
[AC_LANG_PUSH(C++)dnl
_AC_COMPILER_EXEEXT
AC_LANG_POP()
]
)])
if test "$check_cxx" = "yes"
then
AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, notfound)
@ -405,6 +414,36 @@ else
fi
fi
# On some compilers, pthreads are available without further options
# (e.g. MacOS X). On some of these systems, the compiler will not
# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
# So we have to see first whether pthreads are available without
# options before we can check whether -Kpthread improves anything.
AC_MSG_CHECKING(whether pthreads are available without options)
AC_CACHE_VAL(ac_cv_pthread_is_default,
[AC_TRY_RUN([
#include <pthread.h>
void* routine(void* p){return NULL;}
int main(){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
return 0;
}
],
ac_cv_pthread_is_default=yes,
ac_cv_pthread_is_default=no,
ac_cv_pthread_is_default=no)
])
AC_MSG_RESULT($ac_cv_pthread_is_default)
if test $ac_cv_pthread_is_default = yes
then
ac_cv_kpthread=no
else
# -Kpthread, if available, provides the right #defines
# and linker options to make pthread_create available
# Some compilers won't report that they do not support -Kpthread,
@ -431,6 +470,7 @@ int main(){
ac_cv_kpthread=no)
CC="$ac_save_cc"])
AC_MSG_RESULT($ac_cv_kpthread)
fi
dnl # check for ANSI or K&R ("traditional") preprocessor
dnl AC_MSG_CHECKING(for C preprocessor type)
@ -925,6 +965,14 @@ AC_MSG_RESULT($with_threads)
if test "$with_threads" = "no"
then
USE_THREAD_MODULE="#"
elif test "$ac_cv_pthread_is_default" = yes
then
AC_DEFINE(WITH_THREAD)
AC_DEFINE(_POSIX_THREADS)
# Defining _REENTRANT on system with POSIX threads should not hurt.
AC_DEFINE(_REENTRANT)
posix_threads=yes
LIBOBJS="$LIBOBJS thread.o"
elif test "$ac_cv_kpthread" = "yes"
then
CC="$CC -Kpthread"
@ -1120,7 +1168,7 @@ if test "$ipv6" = "yes"; then
case $i in
inria)
dnl http://www.kame.net/
AC_EGREP_CPP(yes, [dnl
AC_EGREP_CPP(yes, [
#include <netinet/in.h>
#ifdef IPV6_INRIA_VERSION
yes
@ -1130,7 +1178,7 @@ yes
;;
kame)
dnl http://www.kame.net/
AC_EGREP_CPP(yes, [dnl
AC_EGREP_CPP(yes, [
#include <netinet/in.h>
#ifdef __KAME__
yes
@ -1143,7 +1191,7 @@ yes
;;
linux-glibc)
dnl http://www.v6.linux.or.jp/
AC_EGREP_CPP(yes, [dnl
AC_EGREP_CPP(yes, [
#include <features.h>
#if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2))
yes
@ -1171,7 +1219,7 @@ yes
fi
;;
toshiba)
AC_EGREP_CPP(yes, [dnl
AC_EGREP_CPP(yes, [
#include <sys/param.h>
#ifdef _TOSHIBA_INET6
yes
@ -1182,7 +1230,7 @@ yes
OPT="-DINET6 $OPT"])
;;
v6d)
AC_EGREP_CPP(yes, [dnl
AC_EGREP_CPP(yes, [
#include </usr/local/v6/include/sys/v6config.h>
#ifdef __V6D__
yes
@ -1193,7 +1241,7 @@ yes
OPT="-I/usr/local/v6/include $OPT"])
;;
zeta)
AC_EGREP_CPP(yes, [dnl
AC_EGREP_CPP(yes, [
#include <sys/param.h>
#ifdef _ZETA_MINAMI_INET6
yes