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configure.ac: Add check for __clog. 

* configure.ac: Add check for __clog.
	* configure: Regenerate.

From-SVN: r104654
This commit is contained in:
David Edelsohn 2005-09-26 19:08:27 +00:00 committed by François-Xavier Coudert
parent c59dabbe46
commit e097b4f158
3 changed files with 87 additions and 0 deletions
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5
libgfortran/ChangeLog
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@ -1,3 +1,8 @@
2005-09-26 David Edelsohn <dje@watson.ibm.com>
* configure.ac: Add check for __clog.
* configure: Regenerate.
2005-09-25 Francois-Xavier Coudert <coudert@clipper.ens.fr>
* c99_protos.h: Add prototypes for C99 complex functions.

79
libgfortran/configure vendored
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@ -19028,6 +19028,85 @@ _ACEOF
fi
# Hack for AIX
echo "$as_me:$LINENO: checking for __clog in -lm" >&5
echo $ECHO_N "checking for __clog in -lm... $ECHO_C" >&6
if test "${ac_cv_lib_m___clog+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lm $LIBS"
if test x$gcc_no_link = xyes; then
{ { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
{ (exit 1); exit 1; }; }
fi
cat >conftest.$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 __clog ();
int
main ()
{
__clog ();
;
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 $ac_status); }; }; then
ac_cv_lib_m___clog=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_cv_lib_m___clog=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_m___clog" >&5
echo "${ECHO_T}$ac_cv_lib_m___clog" >&6
if test $ac_cv_lib_m___clog = yes; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_CLOG 1
_ACEOF
fi
# Fallback in case isfinite is not available.
echo "$as_me:$LINENO: checking for finite in -lm" >&5
echo $ECHO_N "checking for finite in -lm... $ECHO_C" >&6

3
libgfortran/configure.ac
View File

@ -325,6 +325,9 @@ AC_CHECK_LIB([m],[ynf],[AC_DEFINE([HAVE_YNF],[1],[libm includes ynf])])
AC_CHECK_LIB([m],[yn],[AC_DEFINE([HAVE_YN],[1],[libm includes yn])])
AC_CHECK_LIB([m],[ynl],[AC_DEFINE([HAVE_YNL],[1],[libm includes ynl])])
# On AIX, clog is present in libm as __clog
AC_CHECK_LIB([m],[__clog],[AC_DEFINE([HAVE_CLOG],[1],[libm includes clog])])
# Fallback in case isfinite is not available.
AC_CHECK_LIB([m],[finite],[AC_DEFINE([HAVE_FINITE],[1],[libm includes finite])])