Commit 0d9ccdd3faa9b6f2e89ecaffe9f27aa88cc01258

Bruno Haible 2012-03-08T00:42:49

copysignf: Don't override undeclared system function on IRIX 6.5. * lib/math.in.h (copysignf): Test HAVE_DECL_COPYSIGNF, not HAVE_COPYSIGNF. * m4/copysignf.m4 (gl_FUNC_COPYSIGNF): Don't assume copysignf() is declared when it exists. Set HAVE_DECL_COPYSIGNF. * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize HAVE_DECL_COPYSIGNF, not HAVE_COPYSIGNF. * modules/math (Makefile.am): Substitute HAVE_DECL_COPYSIGNF, not HAVE_COPYSIGNF. * doc/posix-functions/copysignf.texi: Mention missing declaration problem.