Commit 49d6b5a8396bdfb66bba54d59fe8ce750911f6f1
2012-02-27T03:13:00
modff-ieee: Work around test failures on *BSD, IRIX, OSF/1, etc. * m4/modff-ieee.m4: New file. * m4/modff.m4 (gl_FUNC_MODFF): If gl_FUNC_MODFF_IEEE is present, test whether modff works with NaN and Inf. Replace it if not. * lib/math.in.h (modff): Override if REPLACE_MODFF is 1. * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_MODFF. * modules/math (Makefile.am): Substitute REPLACE_MODFF. * modules/modff (configure.ac): Consider REPLACE_MODFF. (Depends-on): Update dependencies. * modules/modff-ieee (Files): Add m4/modff-ieee.m4, m4/minus-zero.m4, m4/signbit.m4. (Depends-on): Add modf-ieee. (configure.ac): Invoke gl_FUNC_MODFF_IEEE. * doc/posix-functions/modff.texi: Mention the modff-ieee module.