1 files changed, 56 insertions, 0 deletions

diff --git a/meta/recipes-graphics/glew/glew/0001-Fix-build-race-in-Makefile.patch b/meta/recipes-graphics/glew/glew/0001-Fix-build-race-in-Makefile.patch
new file mode 100644
index 0000000000..2418646689
--- /dev/null
+++ b/meta/recipes-graphics/glew/glew/0001-Fix-build-race-in-Makefile.patch
@@ -0,0 +1,56 @@
+Upstream-Status: Backport [767e0316450911f1158bd4f7fd8dcd066bae5c55]
+Signed-off-by: Ross Burton <ross.burton@arm.com>
+
+From 0ce0a85597db48a2fca619bd95e34af091e54ae8 Mon Sep 17 00:00:00 2001
+From: Ross Burton <ross.burton@arm.com>
+Date: Thu, 22 Jul 2021 16:31:11 +0100
+Subject: [PATCH] Fix build race in Makefile
+
+The current rule for the binaries is:
+
+glew.bin: glew.lib bin bin/$(GLEWINFO.BIN) bin/$(VISUALINFO.BIN)
+
+In parallel builds, all of those targets happen at the same time. This
+means that 'bin' can happen *after* 'bin/$(GLEWINFO.BIN)', which is a
+problem as the 'bin' target's responsibility is to create the directory
+that the other target writes into.
+
+Solve this by not having a separate 'create directory' target which is
+fundamentally racy, and simply mkdir in each target which writes into it.
+---
+ Makefile | 9 ++++-----
+ 1 file changed, 4 insertions(+), 5 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index d0e4614..04af44c 100644
+--- a/Makefile
++++ b/Makefile
+@@ -171,21 +171,20 @@ VISUALINFO.BIN.OBJ := $(VISUALINFO.BIN.OBJ:.c=.o)
+ # Don't build glewinfo or visualinfo for NaCL, yet.
+ 
+ ifneq ($(filter nacl%,$(SYSTEM)),)
+-glew.bin: glew.lib bin
++glew.bin: glew.lib
+ else
+-glew.bin: glew.lib bin bin/$(GLEWINFO.BIN) bin/$(VISUALINFO.BIN) 
++glew.bin: glew.lib bin/$(GLEWINFO.BIN) bin/$(VISUALINFO.BIN)
+ endif
+ 
+-bin:
+-       mkdir bin
+-
+ bin/$(GLEWINFO.BIN): $(GLEWINFO.BIN.OBJ) $(LIB.SHARED.DIR)/$(LIB.SHARED)
++       @mkdir -p $(dir $@)
+        $(CC) $(CFLAGS) -o $@ $(GLEWINFO.BIN.OBJ) $(BIN.LIBS)
+ ifneq ($(STRIP),)
+        $(STRIP) -x $@
+ endif
+ 
+ bin/$(VISUALINFO.BIN): $(VISUALINFO.BIN.OBJ) $(LIB.SHARED.DIR)/$(LIB.SHARED)
++       @mkdir -p $(dir $@)
+        $(CC) $(CFLAGS) -o $@ $(VISUALINFO.BIN.OBJ) $(BIN.LIBS)
+ ifneq ($(STRIP),)
+        $(STRIP) -x $@
+-- 
+2.25.1
+