r14950: make sure include/config.h is only updated when the content was changed

metze
(This used to be commit 2488ead8c3431be3014012a05de4ee57ff13aa93)

source4/autogen.sh

@@ -51,7 +51,7 @@ echo "$0: running script/mkversion.sh"
 ./script/mkversion.sh || exit 1
 
 rm -rf autom4te*.cache
-rm -f configure include/config.h*
+rm -f configure include/config_tmp.h*
 
 echo "$0: running $AUTOHEADER"
 $AUTOHEADER || exit 1

source4/configure.in

@@ -7,7 +7,7 @@ dnl AC_PREREQ(2.53)
 AC_INIT([samba],[],[samba-technical@samba.org])
 
 AC_CONFIG_SRCDIR([include/includes.h])
-AC_CONFIG_HEADER(include/config.h)
+AC_CONFIG_HEADER(include/config_tmp.h)
 
 # Configuration rules.
 sinclude(build/m4/env.m4)
@@ -110,6 +110,12 @@ $SMB_INFO_SUBSYSTEMS
 $SMB_INFO_LIBRARIES
 CEOF
 
+cmp include/config_tmp.h include/config.h >/dev/null 2>&1
+CMP_RET=$?
+if [ $CMP_RET != 0 ];then
+	cp include/config_tmp.h include/config.h
+fi
+
 AC_OUTPUT_COMMANDS(
 [$PERL -I${builddir} -I${srcdir} -I${srcdir}/build ${srcdir}/build/smb_build/main.pl || exit $?],[
 PERL="$PERL";export PERL;export srcdir; export builddir;

source4/main.mk

@@ -251,7 +251,7 @@ clean:: clean_pch
 	@-rm -f $(PROTO_HEADERS)
 
 distclean: clean
-	-rm -f include/config.h include/smb_build.h
+	-rm -f include/config.h include/config_tmp.h include/build.h
 	-rm -f Makefile 
 	-rm -f config.status
 	-rm -f config.log config.cache
@@ -262,7 +262,7 @@ removebackup:
 	-rm -f *.bak *~ */*.bak */*~ */*/*.bak */*/*~ */*/*/*.bak */*/*/*~
 
 realdistclean: distclean removebackup
-	-rm -f include/config.h.in
+	-rm -f include/config_tmp.h.in
 	-rm -f include/version.h
 	-rm -f configure
 	-rm -f $(MANPAGES)