Treat all targets serially at the toplevel. This allows
to specify
nice gmake --jobs all check
and go to lunch, while a multiprocessor machine
will build everything using spare resources
and check the result thereafter.
Since concurrency of make is not restricted
in subdirectories, this should be a nearly
optimal way to do it.
Also teach the user about a configure switch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47715 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Makefile b/Makefile
index d9786d2..837c2d7 100644
--- a/Makefile
+++ b/Makefile
@@ -113,7 +113,8 @@
ifeq ($(BuildMode),Debug)
$(Echo) '*****' Note: Debug build can be 10 times slower than an
$(Echo) '*****' optimized build. Use 'make ENABLE_OPTIMIZED=1' to
- $(Echo) '*****' make an optimized build.
+ $(Echo) '*****' make an optimized build. Alternatively you can
+ $(Echo) '*****' configure with --enable-optimized.
endif
check-llvm2cpp:
@@ -143,3 +144,7 @@
.PHONY: srpm rpm
+# declare all targets at this level to be serial:
+
+.NOTPARALLEL:
+