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[gnulib.git]
/
m4
/
log10f.m4
diff --git
a/m4/log10f.m4
b/m4/log10f.m4
index
e2dc60d
..
c2cfcca
100644
(file)
--- a/
m4/log10f.m4
+++ b/
m4/log10f.m4
@@
-1,5
+1,5
@@
-# log10f.m4 serial
4
-dnl Copyright (C) 2011-201
2
Free Software Foundation, Inc.
+# log10f.m4 serial
6
+dnl Copyright (C) 2011-201
3
Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
@@
-33,11
+33,12
@@
AC_DEFUN([gl_FUNC_LOG10F],
m4_ifdef([gl_FUNC_LOG10F_IEEE], [
if test $gl_log10f_required = ieee && test $REPLACE_LOG10F = 0; then
m4_ifdef([gl_FUNC_LOG10F_IEEE], [
if test $gl_log10f_required = ieee && test $REPLACE_LOG10F = 0; then
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether log10f works according to ISO C 99 with IEC 60559],
[gl_cv_func_log10f_ieee],
[
save_LIBS="$LIBS"
AC_CACHE_CHECK([whether log10f works according to ISO C 99 with IEC 60559],
[gl_cv_func_log10f_ieee],
[
save_LIBS="$LIBS"
- LIBS="$LIBS $LOGF_LIBM"
+ LIBS="$LIBS $LOG
10
F_LIBM"
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#ifndef __NO_MATH_INLINES
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#ifndef __NO_MATH_INLINES
@@
-66,7
+67,13
@@
int main (int argc, char *argv[])
]])],
[gl_cv_func_log10f_ieee=yes],
[gl_cv_func_log10f_ieee=no],
]])],
[gl_cv_func_log10f_ieee=yes],
[gl_cv_func_log10f_ieee=no],
- [gl_cv_func_log10f_ieee="guessing no"])
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_log10f_ieee="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_log10f_ieee="guessing no" ;;
+ esac
+ ])
LIBS="$save_LIBS"
])
case "$gl_cv_func_log10f_ieee" in
LIBS="$save_LIBS"
])
case "$gl_cv_func_log10f_ieee" in