log1p-ieee: Work around test failure on AIX 7.1 and HP-UX 11.

[gnulib.git] / ChangeLog

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 2012-03-10  Bruno Haible  <bruno@clisp.org>
 
+       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.
+
        Tests for module 'log1pl-ieee'.
        * modules/log1pl-ieee-tests: New file.
        * tests/test-log1pl-ieee.c: New file.