* acinclude.m4 (LIBGFOR_CHECK_FOR_BROKEN_POWF): New autoconf check for
broken powf.
* configure.ac (LIBGFOR_CHECK_FOR_BROKEN_POWF): Use it.
* intrinsics/c99_functions.c: Use internal powf implementation if
HAVE_BROKEN_POWF is defined.
* configure: Rebuilt.
* config.h.in: Rebuilt.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@142952
138bc75d-0d04-0410-961f-
82ee72b054a4
+2008-12-29 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
+
+ PR fortran/31832
+ * acinclude.m4 (LIBGFOR_CHECK_FOR_BROKEN_POWF): New autoconf check for
+ broken powf.
+ * configure.ac (LIBGFOR_CHECK_FOR_BROKEN_POWF): Use it.
+ * intrinsics/c99_functions.c: Use internal powf implementation if
+ HAVE_BROKEN_POWF is defined.
+ * configure: Rebuilt.
+ * config.h.in: Rebuilt.
+
2008-12-22 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/37472
AC_DEFINE(HAVE_MINGW_SNPRINTF, 1, [Define if you have __mingw_snprintf.])
fi
])
+
+dnl Check whether we have a broken powf implementation
+AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_POWF], [
+ AC_CACHE_CHECK([whether powf is broken], libgfor_cv_have_broken_powf, [
+case "${target}" in
+ hppa*64*-*-hpux*) libgfor_cv_have_broken_powf=yes ;;
+ *) libgfor_cv_have_broken_powf=no;;
+esac])
+ if test x"$libgfor_cv_have_broken_powf" = xyes; then
+ AC_DEFINE(HAVE_BROKEN_POWF, 1, [Define if powf is broken.])
+ fi
+])
/* Define if isnan is broken. */
#undef HAVE_BROKEN_ISNAN
+/* Define if powf is broken. */
+#undef HAVE_BROKEN_POWF
+
/* libm includes cabs */
#undef HAVE_CABS
fi
+# Check for a broken powf implementation
+
+ echo "$as_me:$LINENO: checking whether powf is broken" >&5
+echo $ECHO_N "checking whether powf is broken... $ECHO_C" >&6
+if test "${libgfor_cv_have_broken_powf+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+case "${target}" in
+ hppa*64*-*-hpux*) libgfor_cv_have_broken_powf=yes ;;
+ *) libgfor_cv_have_broken_powf=no;;
+esac
+fi
+echo "$as_me:$LINENO: result: $libgfor_cv_have_broken_powf" >&5
+echo "${ECHO_T}$libgfor_cv_have_broken_powf" >&6
+ if test x"$libgfor_cv_have_broken_powf" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_BROKEN_POWF 1
+_ACEOF
+
+ fi
+
+
# Check for GNU libc feenableexcept
echo "$as_me:$LINENO: checking for feenableexcept in -lm" >&5
echo $ECHO_N "checking for feenableexcept in -lm... $ECHO_C" >&6
# Check whether __mingw_snprintf() is present
LIBGFOR_CHECK_MINGW_SNPRINTF
+# Check for a broken powf implementation
+LIBGFOR_CHECK_FOR_BROKEN_POWF
+
# Check for GNU libc feenableexcept
AC_CHECK_LIB([m],[feenableexcept],[have_feenableexcept=yes AC_DEFINE([HAVE_FEENABLEEXCEPT],[1],[libm includes feenableexcept])])
#endif
+#if !defined(HAVE_POWF) || defined(HAVE_BROKEN_POWF)
#ifndef HAVE_POWF
#define HAVE_POWF 1
+#endif
float
powf(float x, float y)
{