From 02bf5816b5dfab63ddabe0bc56286aac09e3cf0c Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Sat, 18 Oct 2003 11:09:54 +0000
Subject: [PATCH] Add support for 'make -j3' so make to run stuff in parallel

---
 Makefile         |  3 +++
 make/binutils.mk |  8 ++++----
 make/gcc-3.3.mk  | 12 ++++++------
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/Makefile b/Makefile
index 7a66efb39b..68f6900ee2 100644
--- a/Makefile
+++ b/Makefile
@@ -78,6 +78,9 @@ MULTILIB:=--enable-multilib
 #Install libstdc++?
 INSTALL_LIBSTDCPP=true
 
+# For SMP machines some stuff can be run in parallel
+#JLEVEL=-j3
+
 #############################################################
 #
 # The list of stuff to build for the target filesystem
diff --git a/make/binutils.mk b/make/binutils.mk
index 74269edf94..ac2116a0a4 100644
--- a/make/binutils.mk
+++ b/make/binutils.mk
@@ -61,11 +61,11 @@ $(BINUTILS_DIR1)/.configured: $(BINUTILS_DIR)/.patched
 	touch $(BINUTILS_DIR1)/.configured
 
 $(BINUTILS_DIR1)/binutils/objdump: $(BINUTILS_DIR1)/.configured
-	$(MAKE) CC_FOR_HOST=$(HOSTCC) CXX_FOR_HOST=$(HOSTCC) \
+	$(MAKE) $(JLEVEL) CC_FOR_HOST=$(HOSTCC) CXX_FOR_HOST=$(HOSTCC) \
 		-C $(BINUTILS_DIR1);
 
 $(STAGING_DIR)/$(GNU_TARGET_NAME)/bin/ld: $(BINUTILS_DIR1)/binutils/objdump 
-	$(MAKE) CC_FOR_HOST=$(HOSTCC) CXX_FOR_HOST=$(HOSTCC) \
+	$(MAKE) $(JLEVEL) CC_FOR_HOST=$(HOSTCC) CXX_FOR_HOST=$(HOSTCC) \
 		-C $(BINUTILS_DIR1) install;
 	rm -rf $(STAGING_DIR)/info $(STAGING_DIR)/man $(STAGING_DIR)/share/doc \
 		$(STAGING_DIR)/share/locale
@@ -144,7 +144,7 @@ $(BINUTILS_DIR2)/.configured: $(BINUTILS_DIR)/.patched
 	touch $(BINUTILS_DIR2)/.configured
 
 $(BINUTILS_DIR2)/binutils/objdump: $(BINUTILS_DIR2)/.configured
-	$(MAKE) -C $(BINUTILS_DIR2) \
+	$(MAKE) $(JLEVEL) -C $(BINUTILS_DIR2) \
 		CC_FOR_BUILD=$(HOSTCC) \
 		CXX_FOR_BUILD=$(HOSTCC) \
 		AR_FOR_TARGET=$(TARGET_CROSS)ar \
@@ -158,7 +158,7 @@ $(BINUTILS_DIR2)/binutils/objdump: $(BINUTILS_DIR2)/.configured
 	touch -c $(BINUTILS_DIR2)/binutils/objdump
 
 $(TARGET_DIR)/usr/bin/ld: $(BINUTILS_DIR2)/binutils/objdump 
-	$(MAKE) -C $(BINUTILS_DIR2) \
+	$(MAKE) $(JLEVEL) -C $(BINUTILS_DIR2) \
 		CC_FOR_BUILD=$(HOSTCC) \
 		CXX_FOR_BUILD=$(HOSTCC) \
 		AR_FOR_TARGET=$(TARGET_CROSS)ar \
diff --git a/make/gcc-3.3.mk b/make/gcc-3.3.mk
index 141dfd7008..ab8e6b847d 100644
--- a/make/gcc-3.3.mk
+++ b/make/gcc-3.3.mk
@@ -136,13 +136,13 @@ $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.gcc3_3_build_hacks
 	touch $(GCC_BUILD_DIR1)/.configured
 
 $(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured
-	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) \
+	PATH=$(TARGET_PATH) $(MAKE) $(JLEVEL) -C $(GCC_BUILD_DIR1) \
 	    AR_FOR_TARGET=$(STAGING_DIR)/bin/$(ARCH)-uclibc-ar \
 	    RANLIB_FOR_TARGET=$(STAGING_DIR)/bin/$(ARCH)-uclibc-ranlib
 	touch $(GCC_BUILD_DIR1)/.compiled
 
 $(STAGING_DIR)/bin/$(ARCH)-uclibc-gcc: $(GCC_BUILD_DIR1)/.compiled
-	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) install;
+	PATH=$(TARGET_PATH) $(MAKE) $(JLEVEL) -C $(GCC_BUILD_DIR1) install;
 	#Cleanup then mess when --program-prefix mysteriously fails 
 	-mv $(STAGING_DIR)/bin/$(GNU_TARGET_NAME)-cpp $(STAGING_DIR)/bin/$(ARCH)-uclibc-cpp
 	-mv $(STAGING_DIR)/bin/$(GNU_TARGET_NAME)-gcc $(STAGING_DIR)/bin/$(ARCH)-uclibc-gcc
@@ -215,11 +215,11 @@ $(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured
 	PATH=$(TARGET_PATH) CC=$(HOSTCC) \
 	    AR_FOR_TARGET=$(TARGET_CROSS)ar RANLIB_FOR_TARGET=$(TARGET_CROSS)ranlib \
 	    LD_FOR_TARGET=$(TARGET_CROSS)ld NM_FOR_TARGET=$(TARGET_CROSS)nm \
-	    CC_FOR_TARGET=$(TARGET_CROSS)gcc $(MAKE) -C $(GCC_BUILD_DIR2)
+	    CC_FOR_TARGET=$(TARGET_CROSS)gcc $(MAKE) $(JLEVEL) -C $(GCC_BUILD_DIR2)
 	touch $(GCC_BUILD_DIR2)/.compiled
 
 $(GCC_BUILD_DIR2)/.installed: $(GCC_BUILD_DIR2)/.compiled $(STAGING_DIR)/lib/libc.a
-	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) install;
+	PATH=$(TARGET_PATH) $(MAKE) $(JLEVEL) -C $(GCC_BUILD_DIR2) install;
 	-mv $(STAGING_DIR)/bin/gcc $(STAGING_DIR)/usr/bin;
 	-mv $(STAGING_DIR)/bin/protoize $(STAGING_DIR)/usr/bin;
 	-mv $(STAGING_DIR)/bin/unprotoize $(STAGING_DIR)/usr/bin;
@@ -385,11 +385,11 @@ $(GCC_BUILD_DIR3)/.configured: $(GCC_BUILD_DIR3)/.gcc3_3_build_hacks
 #endif
 
 $(GCC_BUILD_DIR3)/.compiled: $(GCC_BUILD_DIR3)/.configured
-	$(MAKE) $(TARGET_GCC_ARGS) -C $(GCC_BUILD_DIR3)
+	$(MAKE) $(JLEVEL) $(TARGET_GCC_ARGS) -C $(GCC_BUILD_DIR3)
 	touch $(GCC_BUILD_DIR3)/.compiled
 
 $(TARGET_DIR)/usr/bin/gcc: $(GCC_BUILD_DIR3)/.compiled
-	$(MAKE) $(TARGET_GCC_ARGS) DESTDIR=$(TARGET_DIR) \
+	$(MAKE) $(JLEVEL) $(TARGET_GCC_ARGS) DESTDIR=$(TARGET_DIR) \
 		-C $(GCC_BUILD_DIR3) install
 	(cd $(TARGET_DIR)/usr/bin; ln -fs gcc cc)
 	(cd $(TARGET_DIR)/lib; ln -fs /usr/bin/cpp)
-- 
2.30.2