Running tests respect DEB_BUILD_OPTIONS=parallel=X

(Closes: #751943)

debian/changelog

@@ -1,6 +1,8 @@
 llvm-toolchain-3.4 (1:3.4.2-3) unstable; urgency=medium
 
   * Ship the compiler-rt static libraries
+  * Running tests respect DEB_BUILD_OPTIONS=parallel=X
+   (Closes: #751943)
 
  -- Sylvestre Ledru <sylvestre@debian.org>  Thu, 19 Jun 2014 19:13:16 +0200
 

debian/patches/follow-parallel-var.diff

@@ -0,0 +1,16 @@
+Index: llvm-toolchain-3.4-3.4.2/test/Makefile
+===================================================================
+--- llvm-toolchain-3.4-3.4.2.orig/test/Makefile
++++ llvm-toolchain-3.4-3.4.2/test/Makefile
+@@ -29,6 +29,11 @@ else
+ LIT_ARGS := -s -v
+ endif
+ 
++# NJOBS allows an override of the number of threads
++ifneq ($(NJOBS),)
++LIT_ARGS += $(NJOBS)
++endif
++
+ ifdef TESTSUITE
+ LIT_TESTSUITE := $(TESTSUITE)
+ else

debian/patches/series

@@ -40,3 +40,4 @@ scan-build-fix-clang-detection.diff
 compiler-rt-path.diff
 lldb-soname.diff
 CVE-2014-2893.diff
+follow-parallel-var.diff

debian/rules

@@ -355,9 +355,9 @@ override_dh_auto_test:
 # LLVM tests
 ifneq (,$(findstring $(DEB_HOST_ARCH),$(ARCH_LLVM_TEST_OK)))
 # Fail the build if the test fails
-	LD_LIBRARY_PATH=$(CURDIR)/$(TARGET_BUILD)/Release/lib/ $(MAKE) -C $(TARGET_BUILD) check
+	NJOBS="$(NJOBS)" LD_LIBRARY_PATH=$(CURDIR)/$(TARGET_BUILD)/Release/lib/ $(MAKE) -C $(TARGET_BUILD) check
 else
-	LD_LIBRARY_PATH=$(CURDIR)/$(TARGET_BUILD)/Release/lib/ $(MAKE) -C $(TARGET_BUILD) check || true
+	NJOBS="$(NJOBS)" LD_LIBRARY_PATH=$(CURDIR)/$(TARGET_BUILD)/Release/lib/ $(MAKE) -C $(TARGET_BUILD) check || true
 endif
 
 # clang tests