1 files changed, 11 insertions, 6 deletions
diff --git a/Makefile b/Makefile
index b474a3a..a56fca4 100644
--- a/Makefile
+++ b/Makefile
@@ -9,19 +9,24 @@
 LEVEL = .
 DIRS = lib/System lib/Support utils lib
 
+include $(LEVEL)/Makefile.common
+
 ifeq ($(MAKECMDGOALS),tools-only)
-DIRS += tools
+  DIRS += tools
 else
   ifneq ($(MAKECMDGOALS),libs-only)
-    DIRS += tools runtime docs
-    OPTIONAL_DIRS = examples projects
+    DIRS += tools
+    ifeq ($(LLVMGCC_MAJVERS),3)
+      DIRS += runtime
+    else
+      $(warning Skipping runtime libraries, llvm-gcc 4 detected.)
+    endif
+    DIRS += docs
   endif
+  OPTIONAL_DIRS = examples projects
 endif
-
 EXTRA_DIST := test llvm.spec include
 
-include $(LEVEL)/Makefile.common
-
 # Specify options to pass to configure script when we're
 # running the dist-check target
 DIST_CHECK_CONFIG_OPTIONS = --with-llvmgccdir=$(LLVMGCCDIR)