acinclude.m4 (GLIBCPP_CHECK_LINKER_FEATURES): Test for GNU ld before trying to use any of its options.

2000-07-26  Phil Edwards  <pme@sourceware.cygnus.com>

	* acinclude.m4 (GLIBCPP_CHECK_LINKER_FEATURES):  Test for GNU ld
	  before trying to use any of its options.
	  (CHECK_MATH_DECL*,CHECK_BUILTIN_MATH_DECL*):  Cache tests.
	* aclocal.m4:  Regenerate.
	* configure.in:  Having found GNU make, name it.
	* configure:  Regenerate.
	* docs/install.html:  Mention possible problems with caching.
	* src/Makefile.am (CXXLINK):  Use new OPT_LDFLAGS.
	* src/Makefile.in:  Regenerate.
	* libio/Makefile.in:  Regenerate.
	* math/Makefile.in:  Regenerate.
	* Makefile.in:  Regenerate.

From-SVN: r35269