From 3cc17e4c4a6e8bd35b3d5a02fa3fb6f265e04736 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 25 Mar 2021 06:40:48 +1300 Subject: [PATCH] libfdt: Tidy up pylibfdt build rule At present the build rule for pylibfdt depends on _libfdt.so but modern Python versions add a different suffix to the output file, resulting in something like _libfdt.cpython-38-x86_64-linux-gnu.so The result is that pylibfdt is rebuilt every time. Rename the file the standard name so that the rule works correctly. Also add libfdt.py to the dependencies, so that file is always created if missing. Signed-off-by: Simon Glass --- scripts/dtc/pylibfdt/Makefile | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/scripts/dtc/pylibfdt/Makefile b/scripts/dtc/pylibfdt/Makefile index 80b6ad2ae7..4782dd45c6 100644 --- a/scripts/dtc/pylibfdt/Makefile +++ b/scripts/dtc/pylibfdt/Makefile @@ -23,12 +23,18 @@ quiet_cmd_pymod = PYMOD $@ SWIG_OPTS="-I$(LIBFDT_srcdir) -I$(LIBFDT_srcdir)/.." \ $(PYTHON3) $< --quiet build_ext --inplace -$(obj)/_libfdt.so: $(src)/setup.py $(PYLIBFDT_srcs) FORCE +rebuild: $(src)/setup.py $(PYLIBFDT_srcs) @# Remove the library since otherwise Python doesn't seem to regenerate @# the libfdt.py file if it is missing. - rm -f $(obj)/_libfdt*.so + @rm -f $(obj)/_libfdt*.so $(call if_changed,pymod) + @# Rename the file to _libfdt.so so this Makefile doesn't run every time + @if [ ! -e $(obj)/_libfdt.so ]; then \ + mv $(obj)/_libfdt*.so $(obj)/_libfdt.so; \ + fi -always += _libfdt.so +$(obj)/_libfdt.so $(obj)/libfdt.py &: rebuild + +always += _libfdt.so libfdt.py clean-files += libfdt.i _libfdt.so libfdt.py libfdt_wrap.c -- 2.39.5