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From: Robert Schwebel <r.schwebel@pengutronix.de>
Date: Sun, 30 Oct 2011 22:33:40 +0100
Subject: [PATCH] fix parallel build
The build system has a race with the creation of the python bindings; if
both targets of the "gpspacket.so gpslib.so:" rule are started at the
same time, the build "sometimes" breaks; this can be triggered with only
a few cycles when built with -j16 on a 8-way box.
Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
---
Makefile.am | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/Makefile.am b/Makefile.am
index 05e31f0..818c57a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -187,12 +187,17 @@ if HAVE_PYTHON
PYEXTENSIONS = gpspacket.so gpslib.so
noinst_SCRIPTS = gpspacket.so gpslib.so setup.py
-gpspacket.so gpslib.so: gpspacket.c gpslib.c libgps.la
+.PHONY: build_python_ext
+build_python_ext: gpspacket.c gpslib.c libgps.la
(pwd="`pwd`"; cd $(srcdir) && $(PYTHON) setup.py build_ext --build-lib "$$pwd" --build-temp "$$pwd/build" --include-dirs "$$pwd")
-endif
+
+gpspacket.so: build_python_ext
+gpslib.so: build_python_ext
+
# Clean up after Python
clean-local:
rm -rf build
+endif
#
# Build test_gpsmm
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