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don't run the `pthread_attr_getstack' check when cross compiling

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* configure.ac: Run the `pthread_attr_getstack' test only when building
  natively.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Volker Grabsch 2010-04-15 01:01:23 +02:00 • committed by Ludovic Courtès
parent ec20a3c86d
commit b016e12e95
1 changed files with 31 additions and 27 deletions
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58
configure.ac
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@ -1410,39 +1410,43 @@ AM_CONDITIONAL([BUILD_PTHREAD_SUPPORT],
if test "$with_threads" = pthreads; then if test "$with_threads" = pthreads; then
AC_MSG_CHECKING(whether pthread_attr_getstack works for the main thread) AC_MSG_CHECKING([whether pthread_attr_getstack works for the main thread])
old_CFLAGS="$CFLAGS" old_CFLAGS="$CFLAGS"
CFLAGS="$PTHREAD_CFLAGS $CFLAGS" CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
AC_RUN_IFELSE([AC_LANG_SOURCE([[ if test "$cross_compiling" = "no"; then
#if HAVE_PTHREAD_ATTR_GETSTACK AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <pthread.h> #if HAVE_PTHREAD_ATTR_GETSTACK
#include <pthread.h>
int main () int main ()
{ {
pthread_attr_t attr; pthread_attr_t attr;
void *start, *end; void *start, *end;
size_t size; size_t size;
pthread_getattr_np (pthread_self (), &attr); pthread_getattr_np (pthread_self (), &attr);
pthread_attr_getstack (&attr, &start, &size); pthread_attr_getstack (&attr, &start, &size);
end = (char *)start + size; end = (char *)start + size;
if ((void *)&attr < start || (void *)&attr >= end) if ((void *)&attr < start || (void *)&attr >= end)
return 1;
else
return 0;
}
#else
int main ()
{
return 1; return 1;
else }
return 0; #endif
} ]])],
#else [works=yes
int main () AC_DEFINE([PTHREAD_ATTR_GETSTACK_WORKS], [1], [Define when pthread_att_get_stack works for the main thread])],
{ [works=no],
return 1; [])
} else
#endif works="assuming it doesn't"
]])], fi
[works=yes
AC_DEFINE([PTHREAD_ATTR_GETSTACK_WORKS], [1], [Define when pthread_att_get_stack works for the main thread])],
[works=no],
[])
CFLAGS="$old_CFLAGS" CFLAGS="$old_CFLAGS"
AC_MSG_RESULT($works) AC_MSG_RESULT($works)