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strtoumax: fix another typo in previous commit
[gnulib.git]
/
m4
/
ceilf.m4
diff --git
a/m4/ceilf.m4
b/m4/ceilf.m4
index
66bac69
..
6cca950
100644
(file)
--- a/
m4/ceilf.m4
+++ b/
m4/ceilf.m4
@@
-1,5
+1,5
@@
-# ceilf.m4 serial 1
0
-dnl Copyright (C) 2007, 2009-201
1
Free Software Foundation, Inc.
+# ceilf.m4 serial 1
4
+dnl Copyright (C) 2007, 2009-201
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.
@@
-11,7
+11,7
@@
AC_DEFUN([gl_FUNC_CEILF],
dnl Persuade glibc <math.h> to declare ceilf().
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
dnl Test whether ceilf() is declared.
dnl Persuade glibc <math.h> to declare ceilf().
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
dnl Test whether ceilf() is declared.
- AC_CHECK_DECLS([ceilf], , , [
#include <math.h>
])
+ AC_CHECK_DECLS([ceilf], , , [
[#include <math.h>]
])
if test "$ac_cv_have_decl_ceilf" = yes; then
dnl Test whether ceilf() can be used without libm.
gl_FUNC_CEILF_LIBS
if test "$ac_cv_have_decl_ceilf" = yes; then
dnl Test whether ceilf() can be used without libm.
gl_FUNC_CEILF_LIBS
@@
-22,6
+22,7
@@
AC_DEFUN([gl_FUNC_CEILF],
fi
m4_ifdef([gl_FUNC_CEILF_IEEE], [
if test $gl_ceilf_required = ieee && test $REPLACE_CEILF = 0; then
fi
m4_ifdef([gl_FUNC_CEILF_IEEE], [
if test $gl_ceilf_required = ieee && test $REPLACE_CEILF = 0; then
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether ceilf works according to ISO C 99 with IEC 60559],
[gl_cv_func_ceilf_ieee],
[
AC_CACHE_CHECK([whether ceilf works according to ISO C 99 with IEC 60559],
[gl_cv_func_ceilf_ieee],
[
@@
-35,21
+36,29
@@
AC_DEFUN([gl_FUNC_CEILF],
#include <math.h>
]gl_FLOAT_MINUS_ZERO_CODE[
]gl_FLOAT_SIGNBIT_CODE[
#include <math.h>
]gl_FLOAT_MINUS_ZERO_CODE[
]gl_FLOAT_SIGNBIT_CODE[
-int main()
+static float dummy (float f) { return 0; }
+int main (int argc, char *argv[])
{
{
+ float (*my_ceilf) (float) = argc ? ceilf : dummy;
int result = 0;
/* Test whether ceilf (-0.0f) is -0.0f. */
int result = 0;
/* Test whether ceilf (-0.0f) is -0.0f. */
- if (signbitf (minus_zerof) && !signbitf (ceilf (minus_zerof)))
+ if (signbitf (minus_zerof) && !signbitf (
my_
ceilf (minus_zerof)))
result |= 1;
/* Test whether ceilf (-0.3f) is -0.0f. */
result |= 1;
/* Test whether ceilf (-0.3f) is -0.0f. */
- if (signbitf (-0.3f) && !signbitf (ceilf (-0.3f)))
+ if (signbitf (-0.3f) && !signbitf (
my_
ceilf (-0.3f)))
result |= 2;
return result;
}
]])],
[gl_cv_func_ceilf_ieee=yes],
[gl_cv_func_ceilf_ieee=no],
result |= 2;
return result;
}
]])],
[gl_cv_func_ceilf_ieee=yes],
[gl_cv_func_ceilf_ieee=no],
- [gl_cv_func_ceilf_ieee="guessing no"])
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_ceilf_ieee="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_ceilf_ieee="guessing no" ;;
+ esac
+ ])
LIBS="$save_LIBS"
])
case "$gl_cv_func_ceilf_ieee" in
LIBS="$save_LIBS"
])
case "$gl_cv_func_ceilf_ieee" in
@@
-80,8
+89,9
@@
AC_DEFUN([gl_FUNC_CEILF_LIBS],
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
+ float (*funcptr) (float) = ceilf;
float x;]],
float x;]],
- [[x = ceilf(x);]])],
+ [[x =
funcptr(x) +
ceilf(x);]])],
[gl_cv_func_ceilf_libm=])
if test "$gl_cv_func_ceilf_libm" = "?"; then
save_LIBS="$LIBS"
[gl_cv_func_ceilf_libm=])
if test "$gl_cv_func_ceilf_libm" = "?"; then
save_LIBS="$LIBS"
@@
-92,8
+102,9
@@
AC_DEFUN([gl_FUNC_CEILF_LIBS],
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
+ float (*funcptr) (float) = ceilf;
float x;]],
float x;]],
- [[x = ceilf(x);]])],
+ [[x =
funcptr(x) +
ceilf(x);]])],
[gl_cv_func_ceilf_libm="-lm"])
LIBS="$save_LIBS"
fi
[gl_cv_func_ceilf_libm="-lm"])
LIBS="$save_LIBS"
fi