python-native: Fixes PGEN linking errors Changes Makefile rules to avoid parallel make races when trying to build Parser/PGEN

(From OE-Core rev: f98cd3798837f2954443ca84a199158d9f47c3e8)

Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 28 insertions, 0 deletions

diff --git a/meta/recipes-devtools/python/python-native/avoid_parallel_make_races_on_pgen.patch b/meta/recipes-devtools/python/python-native/avoid_parallel_make_races_on_pgen.patch
new file mode 100644
index 0000000000..1a8f68ebf3
--- /dev/null
+++ b/meta/recipes-devtools/python/python-native/avoid_parallel_make_races_on_pgen.patch
@@ -0,0 +1,27 @@
+Upstream-Status: Inappropriate [embedded specific]
+
+Avoids parallel make races linking errors when making Parser/PGEN
+
+- Implements Richard Purdie's idea
+
+Signed-Off-By: Richard Purdie <richard.purdie@linuxfoundation.org>
+Signed-Off-By: Alejandro Hernandez <alejandro.hernandez@linux.intel.com>
+
+Index: Python-2.7.9/Makefile.pre.in
+===================================================================
+--- Python-2.7.9.orig/Makefile.pre.in
++++ Python-2.7.9/Makefile.pre.in
+@@ -610,12 +610,10 @@ Modules/grpmodule.o: $(srcdir)/Modules/g
+ 
+ Modules/pwdmodule.o: $(srcdir)/Modules/pwdmodule.c $(srcdir)/Modules/posixmodule.h
+ 
+-$(GRAMMAR_H): $(GRAMMAR_INPUT) $(PGENSRCS)
++$(GRAMMAR_H): $(GRAMMAR_INPUT) $(PGENSRCS) $(PGEN)
+                @$(MKDIR_P) Include
+-               $(MAKE) $(PGEN)
+                $(PGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C)
+ $(GRAMMAR_C): $(GRAMMAR_H) $(GRAMMAR_INPUT) $(PGENSRCS)
+-               $(MAKE) $(GRAMMAR_H)
+                touch $(GRAMMAR_C)
+ 
+ $(PGEN):       $(PGENOBJS)
diff --git a/meta/recipes-devtools/python/python-native_2.7.9.bb b/meta/recipes-devtools/python/python-native_2.7.9.bb
index 54be2ea58b..28aaa111ce 100644
--- a/meta/recipes-devtools/python/python-native_2.7.9.bb
+++ b/meta/recipes-devtools/python/python-native_2.7.9.bb
@@ -17,6 +17,7 @@ SRC_URI += "\
             file://builddir.patch \
             file://parallel-makeinst-create-bindir.patch \
             file://revert_use_of_sysconfigdata.patch \
+            file://avoid_parallel_make_races_on_pgen.patch \
            "
 S = "${WORKDIR}/Python-${PV}"