log1p: Provide replacement for Minix and MSVC.

[gnulib.git] / ChangeLog

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@@ -1,5 +1,21 @@
 2012-03-10  Bruno Haible  <bruno@clisp.org>
 
+       log1p: Provide replacement for Minix and MSVC.
+       * lib/math.in.h (log1p): New declaration.
+       * lib/log1p.c: New file.
+       * m4/log1p.m4: New file.
+       * m4/math_h.m4 (gl_MATH_H): Test whether log1p is declared.
+       (gl_MATH_H_DEFAULTS): Initialize GNULIB_LOG1P, HAVE_LOG1P.
+       * modules/math (Makefile.am): Substitute GNULIB_LOG1P, HAVE_LOG1P.
+       * modules/log1p (Files): Add lib/log1p.c, m4/log1p.m4.
+       (Depends-on): Add math, isnand, log, round.
+       (configure.ac): Invoke gl_FUNC_LOG1P. Arrange to compile replacement if
+       HAVE_LOG1P is 0.
+       * tests/test-math-c++.cc: Check the declaration of log1p.
+       * doc/posix-functions/log1p.texi: Mention the replacement.
+
+2012-03-10  Bruno Haible  <bruno@clisp.org>
+
        math tests: Small simplification.
        * tests/test-exp.h (test_function): Use the same err_bound for
        'double' on platforms with sizeof (long double) == sizeof (double)