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-rw-r--r--include/toplevel.mk6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/toplevel.mk b/include/toplevel.mk
index c233a4c214..4003b48241 100644
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@@ -29,6 +29,12 @@ export GNU_HOST_NAME:=$(shell $(TOPDIR)/scripts/config.guess)
export HOST_OS:=$(shell uname)
export HOST_ARCH:=$(shell uname -m)
+ifeq ($(HOST_OS),Darwin)
+ ifneq ($(filter /Applications/Xcode.app/% /Library/Developer/%,$(MAKE)),)
+ $(error Please use a newer version of GNU make. The version shipped by Apple is not supported)
+ endif
+endif
+
# prevent perforce from messing with the patch utility
unexport P4PORT P4USER P4CONFIG P4CLIENT