[OE-core] [PATCH 4/7] m4: do_configure: fix "Argument list too long"

[Robert Yang]

Fixed when len(TMPDIR) =  410:
Can't exec "/bin/sh": Argument list too long at /usr/lib/perl/5.18/IO/File.pm line 65.

This is becuase it has a lot of m4 files, use relative path for them
can fix the problem.

Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
---
 meta/recipes-devtools/m4/m4-1.4.18.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/recipes-devtools/m4/m4-1.4.18.inc b/meta/recipes-devtools/m4/m4-1.4.18.inc
index 5652b74308..d7c8648577 100644
--- a/meta/recipes-devtools/m4/m4-1.4.18.inc
+++ b/meta/recipes-devtools/m4/m4-1.4.18.inc
@@ -15,5 +15,8 @@ SRC_URI_append_class-target = "\
            file://0001-Unset-need_charset_alias-when-building-for-musl.patch \
 	   "
 
+# Fix "Argument list too long" error when len(TMPDIR) = 410
+acpaths = "-I ./m4"
+
 SRC_URI[md5sum] = "a077779db287adf4e12a035029002d28"
 SRC_URI[sha256sum] = "ab2633921a5cd38e48797bf5521ad259bdc4b979078034a3b790d7fec5493fab"
-- 
2.11.0.rc2.dirty