egrep in binutils

egrep in binutils

Apparently some distros have a nagging egrep that helpfully tells you
egrep is deprecated and to use "grep -E".  The nag message causes a ld
testsuite failure.  What's more the advice isn't that good.  The "-E"
flag may not be available with older versions of grep.

This patch fixes bare invocation of egrep within binutils, replacing
it with the autoconf $EGREP or with grep.

config/
	* lib-ld.m4 (AC_LIB_PROG_LD_GNU): Require AC_PROG_EGREP and
	invoke $EGREP.
	(AC_LIB_PROG_LD): Likewise.
binutils/
	* configure: Regenerate.
	* embedspu.sh: Replace egrep with grep.
gold/
	* testsuite/Makefile.am (flagstest_compress_debug_sections.check):
	Replace egrep with grep.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/bnd_ifunc_1.sh: Replace egrep with $EGREP.
	* testsuite/bnd_ifunc_2.sh: Likewise.
	* testsuite/bnd_plt_1.sh: Likewise.
	* testsuite/discard_locals_test.sh: Likewise.
	* testsuite/gnu_property_test.sh: Likewise.
	* testsuite/no_version_test.sh: Likewise.
	* testsuite/pr18689.sh: Likewise.
	* testsuite/pr26936.sh: Likewise.
	* testsuite/retain.sh: Likewise.
	* testsuite/split_i386.sh: Likewise.
	* testsuite/split_s390.sh: Likewise.
	* testsuite/split_x32.sh: Likewise.
	* testsuite/split_x86_64.sh: Likewise.
	* testsuite/ver_test_pr16504.sh: Likewise.
intl/
	* configure: Regenerate.
ld/
	* testsuite/ld-elfvers/vers.exp (test_ar): Replace egrep with grep.