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authorMichael Olbrich2018-04-12 10:36:54 +0200
committerDenys Vlasenko2018-04-14 01:55:51 +0200
commit43dd0062229170747dcbee0a2a87b8e5ee2f09d6 (patch)
tree5b2936d00438b86e327dc56cf025c96a4faa4773 /Makefile
parentc783cf78af04e898a20f69f28b885f7c0285020c (diff)
downloadbusybox-43dd0062229170747dcbee0a2a87b8e5ee2f09d6.zip
busybox-43dd0062229170747dcbee0a2a87b8e5ee2f09d6.tar.gz
build system: fix parallel building issue
The files generated by the include/config/MARKER target are in the dependency list for applets/applet_tables. If applets/applet_tables is created first during applets_dir then it will be created again later as part of $(busybox-dirs). As a result include/applet_tables.h is created again. This time while other build commands may need it. Let applets_dir depend on include/config/MARKER to avoid this particular race condition and create the header files atomically to ensure that the compiler never sees incomplete files. Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 03a57ad..9d7a0a3 100644
--- a/Makefile
+++ b/Makefile
@@ -368,7 +368,7 @@ gen_build_files: $(wildcard $(srctree)/*/*.c) $(wildcard $(srctree)/*/*/*.c)
# we depend on scripts_basic, since scripts/basic/fixdep
# must be built before any other host prog
PHONY += applets_dir
-applets_dir: scripts_basic gen_build_files
+applets_dir: scripts_basic gen_build_files include/config/MARKER
$(Q)$(MAKE) $(build)=applets
applets/%: applets_dir ;