diff options
| author | Bruno Haible <bruno@clisp.org> | 2019-01-20 21:19:41 +0100 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2019-01-20 21:19:41 +0100 |
| commit | 3b9e41effd7bae778c0e40c31aa9f72b7b725d83 (patch) | |
| tree | 6da6e83d1a8bb6fdf6f79dae91c89f35c04a22b6 /m4/truncl.m4 | |
| parent | 8da562a8ae58c5924b560c57e0e2bd88156ac9bd (diff) | |
| download | gnulib-3b9e41effd7bae778c0e40c31aa9f72b7b725d83.tar.gz | |
Defeat current GCC optimizations in math autoconf tests.
* m4/cbrtl.m4 (gl_FUNC_CBRTL): Mark function pointer as 'volatile'.
* m4/ceil.m4 (gl_FUNC_CEIL): Likewise.
* m4/ceilf.m4 (gl_FUNC_CEILF): Likewise.
* m4/ceill.m4 (gl_FUNC_CEILL): Likewise.
* m4/exp2l.m4 (gl_FUNC_EXP2L): Likewise.
* m4/expm1.m4 (gl_FUNC_EXPM1): Likewise.
* m4/floor.m4 (gl_FUNC_FLOOR): Likewise.
* m4/floorf.m4 (gl_FUNC_FLOORF): Likewise.
* m4/fmod.m4 (gl_FUNC_FMOD): Likewise.
* m4/fmodf.m4 (gl_FUNC_FMODF): Likewise.
* m4/fmodl.m4 (gl_FUNC_FMODL): Likewise.
* m4/hypot.m4 (gl_FUNC_HYPOT): Likewise.
* m4/hypotf.m4 (gl_FUNC_HYPOTF): Likewise.
* m4/hypotl.m4 (gl_FUNC_HYPOTL): Likewise.
* m4/ilogb.m4 (gl_FUNC_ILOGB_WORKS): Likewise.
* m4/ilogbf.m4 (gl_FUNC_ILOGBF_WORKS): Likewise.
* m4/ilogbl.m4 (gl_FUNC_ILOGBL_WORKS): Likewise.
* m4/log.m4 (gl_FUNC_LOG): Likewise.
* m4/logf.m4 (gl_FUNC_LOGF): Likewise.
* m4/log10.m4 (gl_FUNC_LOG10): Likewise.
* m4/log10f.m4 (gl_FUNC_LOG10F): Likewise.
* m4/log1p.m4 (gl_FUNC_LOG1P): Likewise.
* m4/log1pf.m4 (gl_FUNC_LOG1PF): Likewise.
* m4/log1pl.m4 (gl_FUNC_LOG1PL): Likewise.
* m4/log2.m4 (gl_FUNC_LOG2): Likewise.
* m4/log2f.m4 (gl_FUNC_LOG2F): Likewise.
* m4/modf.m4 (gl_FUNC_MODF): Likewise.
* m4/modff.m4 (gl_FUNC_MODFF): Likewise.
* m4/modfl.m4 (gl_FUNC_MODFL): Likewise.
* m4/remainder.m4 (gl_FUNC_REMAINDER): Likewise.
* m4/remainderf.m4 (gl_FUNC_REMAINDERF): Likewise.
* m4/remainderl.m4 (gl_FUNC_REMAINDERL): Likewise.
* m4/round.m4 (gl_FUNC_ROUND): Likewise.
* m4/roundf.m4 (gl_FUNC_ROUNDF): Likewise.
* m4/roundl.m4 (gl_FUNC_ROUNDL): Likewise.
* m4/trunc.m4 (gl_FUNC_TRUNC): Likewise.
* m4/truncf.m4 (gl_FUNC_TRUNCF): Likewise.
* m4/truncl.m4 (gl_FUNC_TRUNCL): Likewise.
Diffstat (limited to 'm4/truncl.m4')
| -rw-r--r-- | m4/truncl.m4 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/m4/truncl.m4 b/m4/truncl.m4 index 65f1fcecf4..b03d04cc11 100644 --- a/m4/truncl.m4 +++ b/m4/truncl.m4 @@ -1,4 +1,4 @@ -# truncl.m4 serial 14 +# truncl.m4 serial 15 dnl Copyright (C) 2007-2008, 2010-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -95,7 +95,7 @@ int main() static long double dummy (long double f) { return 0; } int main (int argc, char *argv[]) { - long double (*my_truncl) (long double) = argc ? truncl : dummy; + long double (* volatile my_truncl) (long double) = argc ? truncl : dummy; /* Test whether truncl (-0.3L) is -0.0L. */ if (signbitl (minus_zerol) && !signbitl (my_truncl (-0.3L))) return 1; |