New module 'cbrtl'. * lib/math.in.h (cbrtl): New declaration. * lib/cbrtl.c: New file. * m4/cbrtl.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether cbrtl is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_CBRTL, HAVE_CBRTL, HAVE_DECL_CBRTL. * modules/math (Makefile.am): Substitute GNULIB_CBRTL, HAVE_CBRTL, HAVE_DECL_CBRTL. * modules/cbrtl: New file. * tests/test-math-c++.cc: Check the declaration of cbrtl. * doc/posix-functions/cbrtl.texi: Mention the new module.

# See lib/git-merge-changelog.c for making this useful.
ChangeLog	merge=merge-changelog

# Run this to make 'git diff' on texinfo files give nicer hunk context:
#   git config diff.texinfo.funcname '^@node[	 ][	 ]*\\([^,][^,]*\\)'
*.texi* diff=texinfo