buildsys: move file regeneration logic to the script itself

[mesa.git] / src / Makefile.am

diff --git a/src/Makefile.am b/src/Makefile.am
index 5ef2d4f55eacc470a7a904987d9caa511248bfec..1de4fca6a1216e7662b17b0ad8698d9c88014565 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -19,17 +19,10 @@
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 # IN THE SOFTWARE.
 
-.PHONY: git_sha1.h.tmp
-git_sha1.h.tmp:
-       @$(PYTHON2) $(top_srcdir)/bin/git_sha1_gen.py > $@
-
-git_sha1.h: git_sha1.h.tmp
-       @echo "updating git_sha1.h"
-       @if ! cmp -s git_sha1.h.tmp git_sha1.h; then \
-               mv git_sha1.h.tmp git_sha1.h ;\
-       else \
-               rm git_sha1.h.tmp ;\
-       fi
+.PHONY: git_sha1.h
+git_sha1.h: $(top_srcdir)/src/git_sha1.h.in
+       @echo "updating $@"
+       @$(PYTHON2) $(top_srcdir)/bin/git_sha1_gen.py --output $@
 
 BUILT_SOURCES = git_sha1.h
 CLEANFILES = $(BUILT_SOURCES)