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Make sure that libm is used during config tests so that ceil, floor, and

friends are actually detected.

llvm-svn: 25454
This commit is contained in:
Reid Spencer 2006-01-19 08:31:08 +00:00
parent effe3e54e4
commit ae31d4858b
3 changed files with 77 additions and 1 deletions

View File

@ -450,7 +450,7 @@ dnl===-----------------------------------------------------------------------===
dnl libelf is for sparc only; we can ignore it if we don't have it
AC_CHECK_LIB(elf, elf_begin)
AC_CHECK_LIB(m,sin)
dnl lt_dlopen may be required for plugin support.
AC_SEARCH_LIBS(lt_dlopen,ltdl,AC_DEFINE([HAVE_LT_DLOPEN],[1],

73
configure vendored
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@ -24981,6 +24981,79 @@ _ACEOF
fi
echo "$as_me:$LINENO: checking for sin in -lm" >&5
echo $ECHO_N "checking for sin in -lm... $ECHO_C" >&6
if test "${ac_cv_lib_m_sin+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lm $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.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 sin ();
int
main ()
{
sin ();
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag"
|| test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$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 $ac_status); }; }; then
ac_cv_lib_m_sin=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_cv_lib_m_sin=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_m_sin" >&5
echo "${ECHO_T}$ac_cv_lib_m_sin" >&6
if test $ac_cv_lib_m_sin = yes; then
cat >>confdefs.h <<_ACEOF
#define HAVE_LIBM 1
_ACEOF
LIBS="-lm $LIBS"
fi
echo "$as_me:$LINENO: checking for library containing lt_dlopen" >&5
echo $ECHO_N "checking for library containing lt_dlopen... $ECHO_C" >&6

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@ -172,6 +172,9 @@
/* Define to 1 if you have the `elf' library (-lelf). */
#undef HAVE_LIBELF
/* Define to 1 if you have the `m' library (-lm). */
#undef HAVE_LIBM
/* Define to 1 if you have the `pthread' library (-lpthread). */
#undef HAVE_LIBPTHREAD