From 61d5f9c09b3157db76bd1a393e248c262a8d9dd4 Mon Sep 17 00:00:00 2001 From: Alexey Neyman Date: Wed, 8 Mar 2017 14:31:10 -0800 Subject: [PATCH] Fix combreloc test with BSD grep The test for "-z combreloc" fails when cross-compiling on a machine that uses BSD grep (e.g. on macos). grep complains about empty subexpression and exits with non-zero status, which is interpreted by configure as "not found". As a result, support for "-z combreloc" (HAVE_Z_COMBRELOC) is not detected, leading to link failure on SPARC. * configure.ac: Avoid empty subexpression in grep. Signed-off-by: Alexey Neyman --- ChangeLog | 5 +++++ configure | 2 +- configure.ac | 2 +- 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/configure b/configure index eecd0ac..0118bd1 100755 --- a/configure +++ b/configure @@ -5804,7 +5804,7 @@ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; } then - if $READELF -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then + if $READELF -S conftest.so | grep '\.\(rel\|rela\)\.dyn' > /dev/null; then libc_cv_z_combreloc=yes else libc_cv_z_combreloc=no diff --git a/configure.ac b/configure.ac index 4a77411..19f6d87 100644 --- a/configure.in +++ b/configure.in @@ -1391,7 +1391,7 @@ dnl cross-platform since the gcc used can be a cross compiler. Without dnl introducing new options this is not easily doable. Instead use a tool dnl which always is cross-platform: readelf. To detect whether -z combreloc dnl look for a section named .rel.dyn. - if $READELF -S conftest.so | grep '\.rel\(a\|\)\.dyn' > /dev/null; then + if $READELF -S conftest.so | grep '\.\(rel\|rela\)\.dyn' > /dev/null; then libc_cv_z_combreloc=yes else libc_cv_z_combreloc=no -- 2.9.3