[PATCH] autotools: Fix find races on source directory

[Richard Purdie <richard.purdie@linuxfoundation.org>]

In a similar way to http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=aa1438b56f30515f9c31b306decef7f562dda81f
there are more find races in the autotools class.

For recipes with PACKAGES_remove = "${PN}", the find which removes
.la files can race against deletion of other directories in WORKDIR
e.g.:
find: '/home/autobuilder/yocto-autobuilder/yocto-worker/nightly-oe-selftest/build/build/tmp/work/qemux86_64-poky-linux/init-ifupdown/1.0-r7/sstate-build-populate_lic': No such file or directory
| WARNING: /home/autobuilder/yocto-autobuilder/yocto-worker/nightly-oe-selftest/build/build/tmp/work/qemux86_64-poky-linux/init-ifupdown/1.0-r7/temp/run.do_configure.6558:1 exit 1 from
| find /home/autobuilder/yocto-autobuilder/yocto-worker/nightly-oe-selftest/build/build/tmp/work/qemux86_64-poky-linux/init-ifupdown/1.0-r7 -name \*.la -delete

Fix the remaining races in the same way.

[YOCTO #7522]

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index 19c1091..24bc530 100644
--- a/meta/classes/autotools.bbclass
+++ b/meta/classes/autotools.bbclass
@@ -116,7 +116,7 @@ autotools_preconfigure() {
 					echo "Running \"${MAKE} clean\" in ${S}"
 					${MAKE} clean
 				fi
-				find ${S} -name \*.la -delete
+				find ${S} -ignore_readdir_race -name \*.la -delete
 			fi
 		fi
 	fi
@@ -227,7 +227,7 @@ autotools_do_configure() {
 	# for a package whose autotools are old, on an x86_64 machine, which the old
 	# config.sub does not support.  Work around this by installing them manually
 	# regardless.
-	( for ac in `find ${S} -name configure.in -o -name configure.ac`; do
+	( for ac in `find ${S} -ignore_readdir_race -name configure.in -o -name configure.ac`; do
 		rm -f `dirname $ac`/configure
 		done )
 	if [ -e ${S}/configure.in -o -e ${S}/configure.ac ]; then
@@ -236,7 +236,7 @@ autotools_do_configure() {
 		ACLOCAL="aclocal --system-acdir=${ACLOCALDIR}/"
 		if [ x"${acpaths}" = xdefault ]; then
 			acpaths=
-			for i in `find ${S} -maxdepth 2 -name \*.m4|grep -v 'aclocal.m4'| \
+			for i in `find ${S} -ignore_readdir_race -maxdepth 2 -name \*.m4|grep -v 'aclocal.m4'| \
 				grep -v 'acinclude.m4' | grep -v 'aclocal-copy' | sed -e 's,\(.*/\).*$,\1,'|sort -u`; do
 				acpaths="$acpaths -I $i"
 			done
@@ -277,7 +277,7 @@ autotools_do_configure() {
 					fi
 				fi
 				for i in gettext.m4 iconv.m4 lib-ld.m4 lib-link.m4 lib-prefix.m4 nls.m4 po.m4 progtest.m4; do
-					for j in `find ${S} -name $i | grep -v aclocal-copy`; do
+					for j in `find ${S} -ignore_readdir_race -name $i | grep -v aclocal-copy`; do
 						rm $j
 					done
 				done