Patch #742741: Check for true in different paths, support -pthread.
diff --git a/configure b/configure
index d8d5edf..ad33c34 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in Revision: 1.410 .
+# From configure.in Revision: 1.411 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.53 for python 2.3.
#
@@ -3949,6 +3949,68 @@
echo "${ECHO_T}$ac_cv_kthread" >&6
fi
+if test $ac_cv_kthread = no
+then
+# -pthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -pthread,
+# so we need to run a program to see whether it really made the
+# function available.
+echo "$as_me:$LINENO: checking whether $CC accepts -pthread" >&5
+echo $ECHO_N "checking whether $CC accepts -pthread... $ECHO_C" >&6
+if test "${ac_cv_thread+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_save_cc="$CC"
+CC="$CC -pthread"
+if test "$cross_compiling" = yes; then
+ ac_cv_pthread=no
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+ pthread_t p;
+ if(pthread_create(&p,NULL,routine,NULL)!=0)
+ return 1;
+ (void)pthread_detach(p);
+ return 0;
+}
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_pthread=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_pthread=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+CC="$ac_save_cc"
+fi
+
+echo "$as_me:$LINENO: result: $ac_cv_pthread" >&5
+echo "${ECHO_T}$ac_cv_pthread" >&6
+fi
+
# checks for header files
echo "$as_me:$LINENO: checking for ANSI C header files" >&5
@@ -9202,6 +9264,8 @@
then CC="$CC -Kpthread"
elif test "$ac_cv_kthread" = "yes"
then CC="$CC -Kthread"
+elif test "$ac_cv_pthread" = "yes"
+then CC="$CC -pthread"
fi
echo "$as_me:$LINENO: checking for pthread_t" >&5
echo $ECHO_N "checking for pthread_t... $ECHO_C" >&6
@@ -10222,6 +10286,15 @@
posix_threads=yes
THREADOBJ="Python/thread.o"
+elif test "$ac_cv_pthread" = "yes"
+then
+ CC="$CC -pthread"
+ cat >>confdefs.h <<\_ACEOF
+#define WITH_THREAD 1
+_ACEOF
+
+ posix_threads=yes
+ THREADOBJ="Python/thread.o"
else
if test ! -z "$with_threads" -a -d "$with_threads"
then LDFLAGS="$LDFLAGS -L$with_threads"
@@ -11232,159 +11305,6 @@
- if test "$posix_threads" = "yes"; then
- if test "$unistd_defines_pthreads" = "no"; then
-
-cat >>confdefs.h <<\_ACEOF
-#define _POSIX_THREADS 1
-_ACEOF
-
- fi
-
- # Bug 662787: Using semaphores causes unexplicable hangs on Solaris 8.
- case $ac_sys_system/$ac_sys_release in
- SunOS/5.8)
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_BROKEN_POSIX_SEMAPHORES 1
-_ACEOF
-;;
- esac
-
- echo "$as_me:$LINENO: checking if PTHREAD_SCOPE_SYSTEM is supported" >&5
-echo $ECHO_N "checking if PTHREAD_SCOPE_SYSTEM is supported... $ECHO_C" >&6
- if test "${ac_cv_pthread_system_supported+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test "$cross_compiling" = yes; then
- ac_cv_pthread_system_supported=no
-else
- cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-#include <pthread.h>
- void *foo(void *parm) {
- return NULL;
- }
- main() {
- pthread_attr_t attr;
- pthread_t id;
- if (pthread_attr_init(&attr)) exit(-1);
- if (pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM)) exit(-1);
- if (pthread_create(&id, &attr, foo, NULL)) exit(-1);
- exit(0);
- }
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_pthread_system_supported=yes
-else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-( exit $ac_status )
-ac_cv_pthread_system_supported=no
-fi
-rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-
-fi
-
- echo "$as_me:$LINENO: result: $ac_cv_pthread_system_supported" >&5
-echo "${ECHO_T}$ac_cv_pthread_system_supported" >&6
- if test "$ac_cv_pthread_system_supported" = "yes"; then
-
-cat >>confdefs.h <<\_ACEOF
-#define PTHREAD_SYSTEM_SCHED_SUPPORTED 1
-_ACEOF
-
- fi
-
-for ac_func in pthread_sigmask
-do
-as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $ac_func (); below. */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func ();
-char (*f) ();
-
-#ifdef F77_DUMMY_MAIN
-# ifdef __cplusplus
- extern "C"
-# endif
- int F77_DUMMY_MAIN() { return 1; }
-#endif
-int
-main ()
-{
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-f = $ac_func;
-#endif
-
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- eval "$as_ac_var=yes"
-else
- echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-eval "$as_ac_var=no"
-fi
-rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
- fi
-
echo "$as_me:$LINENO: checking for usconfig in -lmpc" >&5
echo $ECHO_N "checking for usconfig in -lmpc... $ECHO_C" >&6
if test "${ac_cv_lib_mpc_usconfig+set}" = set; then
@@ -11527,19 +11447,169 @@
OSF1) LDLAST=-threads;;
esac
fi
+fi
- if test "$posix_threads" = yes -a \
- "$ac_sys_system" = "SunOS" -a \
- "$ac_sys_release" = "5.6"; then
+if test "$posix_threads" = "yes"; then
+ if test "$unistd_defines_pthreads" = "no"; then
cat >>confdefs.h <<\_ACEOF
+#define _POSIX_THREADS 1
+_ACEOF
+
+ fi
+
+ # Bug 662787: Using semaphores causes unexplicable hangs on Solaris 8.
+ case $ac_sys_system/$ac_sys_release in
+ SunOS/5.6)
+cat >>confdefs.h <<\_ACEOF
#define HAVE_PTHREAD_DESTRUCTOR 1
_ACEOF
- fi
+ ;;
+ SunOS/5.8)
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_BROKEN_POSIX_SEMAPHORES 1
+_ACEOF
+
+ ;;
+ esac
+
+ echo "$as_me:$LINENO: checking if PTHREAD_SCOPE_SYSTEM is supported" >&5
+echo $ECHO_N "checking if PTHREAD_SCOPE_SYSTEM is supported... $ECHO_C" >&6
+ if test "${ac_cv_pthread_system_supported+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_pthread_system_supported=no
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <pthread.h>
+ void *foo(void *parm) {
+ return NULL;
+ }
+ main() {
+ pthread_attr_t attr;
+ pthread_t id;
+ if (pthread_attr_init(&attr)) exit(-1);
+ if (pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM)) exit(-1);
+ if (pthread_create(&id, &attr, foo, NULL)) exit(-1);
+ exit(0);
+ }
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_pthread_system_supported=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_pthread_system_supported=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
fi
+ echo "$as_me:$LINENO: result: $ac_cv_pthread_system_supported" >&5
+echo "${ECHO_T}$ac_cv_pthread_system_supported" >&6
+ if test "$ac_cv_pthread_system_supported" = "yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define PTHREAD_SYSTEM_SCHED_SUPPORTED 1
+_ACEOF
+
+ fi
+
+for ac_func in pthread_sigmask
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below. */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+char (*f) ();
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_var=no"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+fi
+
+
# Check for enable-ipv6
@@ -12592,6 +12662,48 @@
fi
rm -f conftest.$ac_objext conftest.$ac_ext
+for ac_prog in true
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_TRUE+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$TRUE"; then
+ ac_cv_prog_TRUE="$TRUE" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_TRUE="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+TRUE=$ac_cv_prog_TRUE
+if test -n "$TRUE"; then
+ echo "$as_me:$LINENO: result: $TRUE" >&5
+echo "${ECHO_T}$TRUE" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$TRUE" && break
+done
+test -n "$TRUE" || TRUE="/bin/true"
+
+
echo "$as_me:$LINENO: checking for inet_aton in -lc" >&5
echo $ECHO_N "checking for inet_aton in -lc... $ECHO_C" >&6
if test "${ac_cv_lib_c_inet_aton+set}" = set; then
@@ -12648,7 +12760,7 @@
echo "$as_me:$LINENO: result: $ac_cv_lib_c_inet_aton" >&5
echo "${ECHO_T}$ac_cv_lib_c_inet_aton" >&6
if test $ac_cv_lib_c_inet_aton = yes; then
- /bin/true
+ $ac_cv_prog_TRUE
else
echo "$as_me:$LINENO: checking for inet_aton in -lresolv" >&5
@@ -18074,6 +18186,7 @@
s,@DLINCLDIR@,$DLINCLDIR,;t t
s,@DYNLOADFILE@,$DYNLOADFILE,;t t
s,@MACHDEP_OBJS@,$MACHDEP_OBJS,;t t
+s,@TRUE@,$TRUE,;t t
s,@LIBOBJS@,$LIBOBJS,;t t
s,@HAVE_GETHOSTBYNAME_R_6_ARG@,$HAVE_GETHOSTBYNAME_R_6_ARG,;t t
s,@HAVE_GETHOSTBYNAME_R_5_ARG@,$HAVE_GETHOSTBYNAME_R_5_ARG,;t t
diff --git a/configure.in b/configure.in
index 51b35a9..aae3eca 100644
--- a/configure.in
+++ b/configure.in
@@ -792,6 +792,37 @@
AC_MSG_RESULT($ac_cv_kthread)
fi
+if test $ac_cv_kthread = no
+then
+# -pthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -pthread,
+# so we need to run a program to see whether it really made the
+# function available.
+AC_MSG_CHECKING(whether $CC accepts -pthread)
+AC_CACHE_VAL(ac_cv_thread,
+[ac_save_cc="$CC"
+CC="$CC -pthread"
+AC_TRY_RUN([
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+ pthread_t p;
+ if(pthread_create(&p,NULL,routine,NULL)!=0)
+ return 1;
+ (void)pthread_detach(p);
+ return 0;
+}
+],
+ ac_cv_pthread=yes,
+ ac_cv_pthread=no,
+ ac_cv_pthread=no)
+CC="$ac_save_cc"])
+AC_MSG_RESULT($ac_cv_pthread)
+fi
+
dnl # check for ANSI or K&R ("traditional") preprocessor
dnl AC_MSG_CHECKING(for C preprocessor type)
dnl AC_TRY_COMPILE([
@@ -982,6 +1013,8 @@
then CC="$CC -Kpthread"
elif test "$ac_cv_kthread" = "yes"
then CC="$CC -Kthread"
+elif test "$ac_cv_pthread" = "yes"
+then CC="$CC -pthread"
fi
AC_MSG_CHECKING(for pthread_t)
have_pthread_t=no
@@ -1415,6 +1448,12 @@
AC_DEFINE(WITH_THREAD)
posix_threads=yes
THREADOBJ="Python/thread.o"
+elif test "$ac_cv_pthread" = "yes"
+then
+ CC="$CC -pthread"
+ AC_DEFINE(WITH_THREAD)
+ posix_threads=yes
+ THREADOBJ="Python/thread.o"
else
if test ! -z "$with_threads" -a -d "$with_threads"
then LDFLAGS="$LDFLAGS -L$with_threads"
@@ -1510,7 +1549,29 @@
USE_THREAD_MODULE="#"])
])])])])])])])])])])])
- if test "$posix_threads" = "yes"; then
+ AC_CHECK_LIB(mpc, usconfig, [AC_DEFINE(WITH_THREAD)
+ LIBS="$LIBS -lmpc"
+ THREADOBJ="Python/thread.o"
+ USE_THREAD_MODULE=""])
+
+ if test "$posix_threads" != "yes"; then
+ AC_CHECK_LIB(thread, thr_create, [AC_DEFINE(WITH_THREAD)
+ LIBS="$LIBS -lthread"
+ THREADOBJ="Python/thread.o"
+ USE_THREAD_MODULE=""])
+ fi
+
+ if test "$USE_THREAD_MODULE" != "#"
+ then
+ # If the above checks didn't disable threads, (at least) OSF1
+ # needs this '-threads' argument during linking.
+ case $ac_sys_system in
+ OSF1) LDLAST=-threads;;
+ esac
+ fi
+fi
+
+if test "$posix_threads" = "yes"; then
if test "$unistd_defines_pthreads" = "no"; then
AC_DEFINE(_POSIX_THREADS, 1,
[Define if you have POSIX threads,
@@ -1519,8 +1580,12 @@
# Bug 662787: Using semaphores causes unexplicable hangs on Solaris 8.
case $ac_sys_system/$ac_sys_release in
+ SunOS/5.6) AC_DEFINE(HAVE_PTHREAD_DESTRUCTOR, 1,
+ Defined for Solaris 2.6 bug in pthread header.)
+ ;;
SunOS/5.8) AC_DEFINE(HAVE_BROKEN_POSIX_SEMAPHORES, 1,
- Define if the Posix semaphores do not work on your system);;
+ Define if the Posix semaphores do not work on your system)
+ ;;
esac
AC_MSG_CHECKING(if PTHREAD_SCOPE_SYSTEM is supported)
@@ -1546,38 +1611,9 @@
AC_DEFINE(PTHREAD_SYSTEM_SCHED_SUPPORTED, 1, [Defined if PTHREAD_SCOPE_SYSTEM supported.])
fi
AC_CHECK_FUNCS(pthread_sigmask)
- fi
-
- AC_CHECK_LIB(mpc, usconfig, [AC_DEFINE(WITH_THREAD)
- LIBS="$LIBS -lmpc"
- THREADOBJ="Python/thread.o"
- USE_THREAD_MODULE=""])
-
- if test "$posix_threads" != "yes"; then
- AC_CHECK_LIB(thread, thr_create, [AC_DEFINE(WITH_THREAD)
- LIBS="$LIBS -lthread"
- THREADOBJ="Python/thread.o"
- USE_THREAD_MODULE=""])
- fi
-
- if test "$USE_THREAD_MODULE" != "#"
- then
- # If the above checks didn't disable threads, (at least) OSF1
- # needs this '-threads' argument during linking.
- case $ac_sys_system in
- OSF1) LDLAST=-threads;;
- esac
- fi
-
- if test "$posix_threads" = yes -a \
- "$ac_sys_system" = "SunOS" -a \
- "$ac_sys_release" = "5.6"; then
- AC_DEFINE(HAVE_PTHREAD_DESTRUCTOR, 1,
- [Defined for Solaris 2.6 bug in pthread header.])
- fi
-
fi
+
# Check for enable-ipv6
AH_TEMPLATE(ENABLE_IPV6, [Define if --enable-ipv6 is specified])
AC_MSG_CHECKING([if --enable-ipv6 is specified])
@@ -1977,9 +2013,12 @@
AC_MSG_RESULT(no)
)
+dnl check for true
+AC_CHECK_PROGS(TRUE, true, /bin/true)
+
dnl On some systems (e.g. Solaris 9), hstrerror and inet_aton are in -lresolv
dnl On others, they are in the C library, so we to take no action
-AC_CHECK_LIB(c, inet_aton, [/bin/true],
+AC_CHECK_LIB(c, inet_aton, [$ac_cv_prog_TRUE],
AC_CHECK_LIB(resolv, inet_aton)
)