log10-ieee: Work around test failure on NetBSD 5.1 and Solaris 11.

[gnulib.git] / ChangeLog

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 2012-04-01  Bruno Haible  <bruno@clisp.org>
 
+       log10-ieee: Work around test failure on NetBSD 5.1 and Solaris 11.
+       * m4/log10-ieee.m4: New file.
+       * m4/log10.m4 (gl_FUNC_LOG10): If gl_FUNC_LOG10_IEEE is present, test
+       whether log10 works with a negative argument. Replace it if not.
+       * lib/log10.c (log10): For negative arguments, return NaN.
+       * modules/log10-ieee (Files): Add m4/log10-ieee.m4.
+       (configure.ac): Invoke gl_FUNC_LOG10_IEEE.
+       * doc/posix-functions/log10.texi: Mention the log10-ieee module.
+
        Tests for module 'log10l-ieee'.
        * modules/log10l-ieee-tests: New file.
        * tests/test-log10l-ieee.c: New file.