From: Harald van Dijk <truedfx@gentoo.org>
Date: Fri, 27 Nov 2009 10:54:07 +0000 (+0100)
Subject: Fix m4 detection test on dash.
X-Git-Tag: v2.66~116
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f75858f577f11a844781764f30cd42cfe8a5669;p=thirdparty%2Fautoconf.git

Fix m4 detection test on dash.

* m4/m4 (AC_PROG_GNU_M4): Use AS_ECHO.
---

diff --git a/ChangeLog b/ChangeLog
index 9e908339..889c59cd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-11-27  Harald van Dijk  <truedfx@gentoo.org>
+
+	Fix m4 detection test on dash.
+	* m4/m4 (AC_PROG_GNU_M4): Use AS_ECHO.
+
 2009-11-24  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	Fix AC_FUNC_MMAP regression with C++ compiler in 2.65.
diff --git a/m4/m4.m4 b/m4/m4.m4
index 096fb287..be86031a 100644
--- a/m4/m4.m4
+++ b/m4/m4.m4
@@ -29,7 +29,7 @@ AC_PATH_PROGS_FEATURE_CHECK([M4], [m4 gm4 gnum4],
       ac_snippet=change'quote(<,>)in''dir(<if''def>,mac,bug)'
       ac_snippet=${ac_snippet}pat'subst(a,\(b\)\|\(a\),\1)d'nl
       test -z "`$ac_path_M4 -F conftest.m4f </dev/null 2>&1`" \
-      && test -z "`echo $ac_snippet | $ac_path_M4 --trace=mac 2>&1`" \
+      && test -z "`AS_ECHO([$ac_snippet]) | $ac_path_M4 --trace=mac 2>&1`" \
       && test -f conftest.m4f \
       && ac_cv_path_M4=$ac_path_M4 ac_path_M4_found=:
       rm -f conftest.m4f],