Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

[pandora-kernel.git] / scripts / mkmakefile

diff --git a/scripts/mkmakefile b/scripts/mkmakefile
index a22cbed..e0f54b9 100644 (file)
--- a/scripts/mkmakefile
+++ b/scripts/mkmakefile
@@ -10,7 +10,16 @@
 # $4 - patchlevel
 
 
-cat << EOF
+test ! -r $2/Makefile -o -O $2/Makefile || exit 0
+# Only overwrite automatically generated Makefiles
+# (so we do not overwrite kernel Makefile)
+if test -e $2/Makefile && ! grep -q Automatically $2/Makefile
+then
+       exit 0
+fi
+echo "  GEN     $2/Makefile"
+
+cat << EOF > $2/Makefile
 # Automatically generated by $0: don't edit
 
 VERSION = $3
@@ -23,11 +32,13 @@ MAKEFLAGS += --no-print-directory
 
 .PHONY: all \$(MAKECMDGOALS)
 
+all    := \$(filter-out all Makefile,\$(MAKECMDGOALS))
+
 all:
-       \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT)
+       \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$(all)
 
 Makefile:;
 
-\$(filter-out all Makefile,\$(MAKECMDGOALS)) %/:
-       \$(MAKE) -C \$(KERNELSRC) O=\$(KERNELOUTPUT) \$@
+\$(all) %/: all
+       @:
 EOF