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committed cb4ab36bcf1xxxxxxxxxxPatch taken upstream athttp://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=7f75858f577f11a844781764f30cd42cfe8a5669,with the following modifications: * Changes to NEWS file removed to avoid conflicts * Changes also made manually to the generated configure script. Otherwise, host-autoconf is needed to compile host-autoconf !Index: autoconf-2.65.old/configure===================================================================--- autoconf-2.65.old.orig/configure 2009-12-15 16:11:05.175566911 +0100+++ autoconf-2.65.old/configure 2009-12-15 16:11:37.739562146 +0100@@ -2380,7 +2380,7 @@ 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.m4fIndex: autoconf-2.65.old/m4/m4.m4===================================================================--- autoconf-2.65.old.orig/m4/m4.m4 2009-12-15 16:11:05.207566124 +0100+++ autoconf-2.65.old/m4/m4.m4 2009-12-15 16:11:18.595562030 +0100@@ -29,7 +29,7 @@ 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],