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| author | Bruno Haible <bruno@clisp.org> | 2012-03-11 01:27:59 +0100 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2012-03-11 02:40:43 +0100 |
| commit | 55b49420fc3ae8860ed66a85645b2b4d171646dc (patch) | |
| tree | f066c0fe36e25d1b951f96dc20370b66cd9602da /m4/log1p-ieee.m4 | |
| parent | 5ba3e2240b3f1bba41db8a6f96363009f6d71fad (diff) | |
| download | gnulib-55b49420fc3ae8860ed66a85645b2b4d171646dc.tar.gz | |
log1p-ieee: Work around test failure on AIX 7.1 and HP-UX 11.
* m4/log1p-ieee.m4: New file.
* m4/log1p.m4 (gl_FUNC_LOG1P): If gl_FUNC_LOG1P_IEEE is present, test
whether log1p works with a minus zero argument. Replace it if not.
* lib/math.in.h (log1p): Override if REPLACE_LOG1P is 1.
* m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_LOG1P.
* modules/math (Makefile.am): Substitute REPLACE_LOG1P.
* modules/log1p (configure.ac): Consider REPLACE_LOG1P.
(Depends-on): Update conditions.
* modules/log1p-ieee (Files): Add m4/log1p-ieee.m4, m4/minus-zero.m4,
m4/signbit.m4.
(configure.ac): Invoke gl_FUNC_LOG1P_IEEE.
* doc/posix-functions/log1p.texi: Mention the log1p-ieee module.
Diffstat (limited to 'm4/log1p-ieee.m4')
| -rw-r--r-- | m4/log1p-ieee.m4 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/m4/log1p-ieee.m4 b/m4/log1p-ieee.m4 new file mode 100644 index 0000000000..2391af8f96 --- /dev/null +++ b/m4/log1p-ieee.m4 @@ -0,0 +1,15 @@ +# log1p-ieee.m4 serial 1 +dnl Copyright (C) 2012 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 macro is in a separate file (not in remainder.m4 and not inlined in the +dnl module description), so that gl_FUNC_LOG1P can test whether 'aclocal' has +dnl found uses of this macro. + +AC_DEFUN([gl_FUNC_LOG1P_IEEE], +[ + m4_divert_text([INIT_PREPARE], [gl_log1p_required=ieee]) + AC_REQUIRE([gl_FUNC_LOG1P]) +]) |