Commit 5f70dcfc4f65198adbce63a01a17f18b1627beee
2012-03-10T19:54:08
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.