[dconf] build: stop non-portable use of 'echo -e'

[Ryan Lortie <ryanl src gnome org>]

commit ebc169999a8d06008509059fc332e6c847adaf75
Author: Ryan Lortie <desrt desrt ca>
Date:   Sun Feb 5 15:36:49 2012 -0500

    build: stop non-portable use of 'echo -e'
    
    Mac OS echo doesn't like '-e' so avoid using it in our Makefile.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=667659

 service/Makefile.am |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/service/Makefile.am b/service/Makefile.am
index 1c611fc..d3eddf7 100644
--- a/service/Makefile.am
+++ b/service/Makefile.am
@@ -22,4 +22,7 @@ dconf_service_SOURCES = \
 DISTCLEANFILES = ca.desrt.dconf.service
 
 ca.desrt.dconf.service: Makefile
-	$(AM_V_GEN) echo -e '[D-BUS Service]\nName=ca.desrt.dconf\nExec=${libexecdir}/dconf-service' > $@
+	$(AM_V_GEN) (echo '[D-BUS Service]'; \
+	             echo 'Name=ca.desrt.dconf'; \
+	             echo 'Exec=${libexecdir}/dconf-service') > $  tmp && \
+	            mv $  tmp $@