[OE-core] [PATCH 1/1] autotools.bbclass: using relative paths for acpaths

[wenzong.fan at windriver.com]

From: Wenzong Fan <wenzong.fan at windriver.com>

Fix autotools.bbclass to use relative paths for acpaths instead of
absolute ones. Since absolute paths may cause potential autoreconf
error like:

    Can't exec "/bin/sh": Argument list too long ...

This error occurs while building coreutils with long TMPDIR, because
it has bunch of m4 files need to be expanded.

[YOCTO #2766]

Signed-off-by: Wenzong Fan <wenzong.fan at windriver.com>
---
 meta/classes/autotools.bbclass |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index e4e034b..874e01d 100644
--- a/meta/classes/autotools.bbclass
+++ b/meta/classes/autotools.bbclass
@@ -130,7 +130,8 @@ autotools_do_configure() {
 		if [ x"${acpaths}" = xdefault ]; then
 			acpaths=
 			for i in `find ${S} -maxdepth 2 -name \*.m4|grep -v 'aclocal.m4'| \
-				grep -v 'acinclude.m4' | sed -e 's,\(.*/\).*$,\1,'|sort -u`; do
+				grep -v 'acinclude.m4' | sed -e 's,\(.*/\).*$,\1,'|sort -u| \
+				sed -e 's,${S},\.,'`; do
 				acpaths="$acpaths -I $i"
 			done
 		else
-- 
1.7.9.5