[PATCH] link libgcc_s.so against a lib containing copysignl on powerpc-*-linux-uclibc

[Bernhard Reutner-Fischer]

Hi,

The attached patch against trunk links libgcc_s.so against the library
containing copysignl().

On glibc the libc.so carries a copy of the math function copysignl() but
on uClibc math functions like copysignl() live in libm. Since libgcc_s
contains unresolved symbols, any attempt to link against libgcc_s
without explicitely specifying -lm fails, resulting in a broken
bootstrap of the compiler.

gcc/ChangeLog:

2008-10-07  Bernhard Reutner-Fischer  <>

	* config/t-slibgcc-elf-ver (SHLIB_LC): Also link against
	@libgcc_libm@.

libgcc/ChangeLog:

2008-10-07  Bernhard Reutner-Fischer  <>

	* configure.ac (libgcc_cv_copysignl_lib, LIBGCC_LIBM): New
	variables to denote if we are on powerpc-uclibc where libm
	functions live in libm.
	* Makefile.in (LIBGCC_LIBM): Set.
	(libgcc_s$(SHLIB_EXT)): Substitute @libgcc_libm@ with
	$(LIBGCC_LIBM).
	* (configure): Regenerate.

Ok for trunk?
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