[mm-common] Do not rely on executable ./missing script

[Daniel Elstner <daniel src gnome org>]

commit 4aac599ca77a0028163dc6d34ad200e4d4b45b09
Author: Daniel Elstner <daniel kitta gmail com>
Date:   Tue Dec 29 13:41:50 2009 +0100

    Do not rely on executable ./missing script
    
    * Makefile.am (skeletonmm.tar.gz): Just to be safe, invoke ./missing
    with $(SHELL) instead of relying on its direct executability.

 Makefile.am |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index fca59d4..e43cb9d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -112,6 +112,7 @@ download_curl = $(CURL) --compressed --connect-timeout 300 -g -L -m 3600 -R --re
 download_wget = $(WGET) -N -nd -T 300 -t 5 -P $(dir $@)
 
 subst_manpage = $(SED) 's|[ ]PACKAGE_STRING[@]|$(PACKAGE_STRING)|g;s|[ ]docdir[@]|$(docdir)|g'
+srctar_stdout = cd $(top_srcdir) >/dev/null && $(SHELL) ./missing --run tar chof -
 
 # If maintainer mode is enabled, always check the remote locations
 # of the tag files for updates when building the default target.
@@ -138,6 +139,6 @@ util/mm-common-prepare.1: $(srcdir)/util/mm-common-prepare.1.in Makefile
 
 # Create tar archive of skeletonmm for installation.
 skeletonmm.tar.gz: $(skeletonmm_files)
-	$(AM_V_GEN)(cd $(srcdir) && ./missing --run tar chof - $(skeletonmm_files)) | gzip -c >$@
+	$(AM_V_GEN)($(srctar_stdout) $(skeletonmm_files)) | gzip -c >$@
 
 include $(top_srcdir)/build/dist-changelog.am