Add new configure option, --disable-timestamps, intended to turn off anything which...

[oota-llvm.git] / Makefile.rules

diff --git a/Makefile.rules b/Makefile.rules
index d70215e94aae613c846f974a0b3d40dc14b91f95..d77fe27b27cc3d8b8a4fbe2c2b344ace8c6c031b 100644 (file)
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -447,6 +447,14 @@ else
   endif
 endif
 
+# Support makefile variable to disable any kind of timestamp/non-deterministic
+# info from being used in the build.
+ifeq ($(ENABLE_TIMESTAMPS),1)
+  DOTDIR_TIMESTAMP_COMMAND := $(DATE)
+else
+  DOTDIR_TIMESTAMP_COMMAND := echo 'Created.'
+endif
+
 ifeq ($(HOST_OS),MingW)
   # Work around PR4957
   CPP.Defines += -D__NO_CTYPE_INLINE
@@ -779,7 +787,7 @@ $(DESTDIR)$(PROJ_bindir) $(DESTDIR)$(PROJ_libdir) $(DESTDIR)$(PROJ_includedir) $
 # To create other directories, as needed, and timestamp their creation
 %/.dir:
        $(Verb) $(MKDIR) $* > /dev/null
-       $(Verb) $(DATE) > $@
+       $(Verb) $(DOTDIR_TIMESTAMP_COMMAND) > $@
 
 .PRECIOUS: $(ObjDir)/.dir $(LibDir)/.dir $(ToolDir)/.dir $(ExmplDir)/.dir
 .PRECIOUS: $(LLVMLibDir)/.dir $(LLVMToolDir)/.dir $(LLVMExmplDir)/.dir