python-cffi: introduce stamp file

Although the rebuild does not take long, it is a bit noisy, so assume
if it succeeds once, it doesn't need to re-invoke setup.py until the
shared library is rebuilt. This is a partial fix for [1].

[1]: id:87r29wwgq2.fsf@fifthhorseman.net

diff --git a/bindings/Makefile.local b/bindings/Makefile.local
index 1cdd28a0584fe2a4436f9b8f9b0e61272cc766c8..7b10af088abbb98716ae45c4cba35cf7a50ffeb2 100644 (file)
--- a/bindings/Makefile.local
+++ b/bindings/Makefile.local
@@ -15,11 +15,14 @@ ifeq ($(HAVE_RUBY_DEV),1)
        $(MAKE) -C $(dir)/ruby CFLAGS="$(CFLAGS) -pipe -fno-plt -fPIC" && touch $@
 endif
 
-python-cffi-bindings: lib/$(LINKER_NAME)
+python-cffi-bindings: $(dir)/python-cffi.stamp
+
+$(dir)/python-cffi.stamp: lib/$(LINKER_NAME)
 ifeq ($(HAVE_PYTHON3_CFFI),1)
        cd $(dir)/python-cffi && \
                ${PYTHON} setup.py build --build-lib build/stage && \
-               mkdir -p build/stage/tests && cp tests/*.py build/stage/tests && touch ../../$@
+               mkdir -p build/stage/tests && cp tests/*.py build/stage/tests && \
+               touch ../python-cffi.stamp
 endif
 
 CLEAN += $(patsubst %,$(dir)/ruby/%, \
@@ -30,4 +33,4 @@ CLEAN += $(patsubst %,$(dir)/ruby/%, \
 
 CLEAN += bindings/ruby/.vendorarchdir.time $(dir)/ruby.stamp
 
-CLEAN += bindings/python-cffi/build
+CLEAN += bindings/python-cffi/build $(dir)/python-cffi.stamp