From 917fb38274cfc664f7cb5ea1d342fccb95d494e5 Mon Sep 17 00:00:00 2001
From: John Criswell <criswell@uiuc.edu>
Date: Fri, 20 Jun 2003 18:35:39 +0000
Subject: Added a hack that takes the path relative to the home directory into
 account if a home directory is provided by the environment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6805 91177308-0d34-0410-b5e6-96231b3b80d8
---
 Makefile.common | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

(limited to 'Makefile.common')

diff --git a/Makefile.common b/Makefile.common
index 9a69fc4c7a..8d4913d95a 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -74,6 +74,18 @@ ifndef BUILD_SRC_ROOT
 BUILD_SRC_ROOT = $(shell cd $(BUILD_SRC_DIR)/$(LEVEL); pwd)
 endif
 
+#
+# Now for a hack:
+#	If we have a home directory, append our offset from it to OBJ_ROOT.
+#	This will "emulate" the previous behavior while not breaking builds
+#	in which there is no home directory.
+#
+ifdef HOME
+OBJ_ROOT := $(OBJ_ROOT)$(patsubst $(HOME)%,%,$(BUILD_SRC_ROOT))
+else
+OBJ_ROOT := $(OBJ_ROOT)/$(shell basename $(BUILD_SRC_ROOT))
+endif
+
 #
 # Set the object build directory.  Its location depends upon the source path
 # and where object files should go.
@@ -82,7 +94,7 @@ ifndef BUILD_OBJ_DIR
 ifeq ($(OBJ_ROOT),.)
 BUILD_OBJ_DIR = $(shell pwd)
 else
-BUILD_OBJ_DIR := $(OBJ_ROOT)$(patsubst $(shell dirname $(BUILD_SRC_ROOT))%,%,$(shell cd $(BUILD_SRC_DIR); pwd))
+BUILD_OBJ_DIR := $(OBJ_ROOT)$(patsubst $(BUILD_SRC_ROOT)%,%,$(shell cd $(BUILD_SRC_DIR); pwd))
 endif
 endif
 
@@ -93,7 +105,7 @@ ifndef BUILD_OBJ_ROOT
 ifeq ($(OBJ_ROOT),.)
 BUILD_OBJ_ROOT = $(shell cd $(LEVEL); pwd)
 else
-BUILD_OBJ_ROOT := $(OBJ_ROOT)$(patsubst $(shell dirname $(BUILD_SRC_ROOT))%,%,$(shell cd $(BUILD_SRC_ROOT); pwd))
+BUILD_OBJ_ROOT := $(OBJ_ROOT)$(patsubst $(BUILD_SRC_ROOT)%,%,$(shell cd $(BUILD_SRC_ROOT); pwd))
 endif
 endif
 
@@ -133,6 +145,14 @@ install ::
 # Default rule for test.  It ensures everything has a test rule
 test::
 
+prdirs::
+	echo "LLVM Source Root       : $(LLVM_SRC_ROOT)"; \
+	echo "LLVM Object Root       : $(LLVM_OBJ_ROOT)"; \
+	echo "Build Source Root      : $(BUILD_SRC_ROOT)"; \
+	echo "Build Source Directory : $(BUILD_SRC_DIR)"; \
+	echo "Build Object Root      : $(BUILD_OBJ_ROOT)"; \
+	echo "Build Object Directory : $(BUILD_OBJ_DIR)";
+
 #--------------------------------------------------------------------
 # Variables derived from configuration options... 
 #--------------------------------------------------------------------
-- 
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