Merge up to 8597 to experimental/gc from the bleeding edge.

build/README.txt

Index: build/README.txt
===================================================================
--- build/README.txt	(revision 8618)
+++ build/README.txt	(working copy)
@@ -9,24 +9,41 @@
 
 $ svn co http://gyp.googlecode.com/svn/trunk build/gyp
 
-To generate Makefiles and build 32-bit version on Linux:
---------------------------------------------------------
+Note for the command lines below that Debug is the default configuration,
+so specifying that on the command lines is not required.
 
-$ GYP_DEFINES=target_arch=ia32 build/gyp_v8
-$ make
 
-To generate Makefiles and build 64-bit version on Linux:
---------------------------------------------------------
+To generate Makefiles on Linux:
+-------------------------------
 
-$ GYP_DEFINES=target_arch=x64 build/gyp_v8
-$ make
+$ build/gyp_v8
 
-To generate Makefiles and build for the arm simulator on Linux:
----------------------------------------------------------------
+This will build makefiles for ia32, x64 and the ARM simulator with names
+Makefile-ia32, Makefile-x64 and Makefile-armu respectively.
 
-$ build/gyp_v8 -I build/arm.gypi
-$ make
+To build and run for ia32 in debug and release version do:
 
+$ make -f Makefile-ia32
+$ out/Debug/shell
+$ make -f Makefile-ia32 BUILDTYPE=Release
+$ out/Release/shell
+
+Change the makefile to build and run for the other architectures.
+
+
+To generate Xcode project files on Mac OS:
+------------------------------------------
+
+$ build/gyp_v8
+
+This will make an Xcode project for the ia32 architecture. To build and run do:
+
+$ xcodebuild -project build/all.xcodeproj
+$ samples/build/Debug/shell
+$ xcodebuild -project build/all.xcodeproj -configuration Release
+$ samples/build/Release/shell
+
+
 To generate Visual Studio solution and project files on Windows:
 ----------------------------------------------------------------
 
@@ -42,8 +59,8 @@
 
 > svn co http://src.chromium.org/svn/trunk/tools/third_party/python_26@70627 third_party/python_26
 
-Now generate Visual Studio solution and project files:
+Now generate Visual Studio solution and project files for the ia32 architecture:
 
-> third_party\python_26\python build/gyp_v8 -D target_arch=ia32
+> third_party\python_26\python build/gyp_v8
 
 Now open build\All.sln in Visual Studio.