64-bit support exists in OS X versions prior to 10.6
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4083 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/release/BUILDING.txt b/release/BUILDING.txt
index afaf917..3f969aa 100644
--- a/release/BUILDING.txt
+++ b/release/BUILDING.txt
@@ -16,9 +16,8 @@
-- NASM
* 0.98 or later is required for a 32-bit build
* NASM 2.05 or later is required for a 64-bit build
- * NASM 2.07 or later is required for a 64-bit build on OS/X (10.6 "Snow
- Leopard" or later.) This can be obtained from MacPorts
- (http://www.macports.org/).
+ * NASM 2.07 or later is required for a 64-bit build on OS/X. This can be
+ obtained from MacPorts (http://www.macports.org/).
The NASM 2.05 RPMs do not work on older Linux systems, such as Enterprise
Linux 4. On such systems, you can easily build and install NASM 2.05
@@ -108,7 +107,7 @@
Add
- --host i686-pc-linux-gnu CFLAGS='-O3 -m32' CXXFLAGS='-O3 -m32'
+ --host i686-pc-linux-gnu CFLAGS='-O3 -m32' CXXFLAGS='-O3 -m32' LDFLAGS=-m32
to the configure and build command lines.
@@ -118,7 +117,7 @@
Add
- --host x86_64-apple-darwin10.0.0 NASM=/opt/local/bin/nasm
+ --host x86_64-apple-darwin NASM=/opt/local/bin/nasm
to the configure command line. NASM 2.07 or later from MacPorts must be
installed.
@@ -134,6 +133,23 @@
to the configure command line.
+64-bit Backward-Compatible Build on 64-bit OS/X
+-----------------------------------------------
+
+Add
+
+ --host x86_64-apple-darwin NASM=/opt/local/bin/nasm \
+ CFLAGS='-isysroot /Developer/SDKs/MacOSX10.5.sdk \
+ -mmacosx-version-min=10.5 -O3' \
+ CXXFLAGS='-isysroot /Developer/SDKs/MacOSX10.5.sdk \
+ -mmacosx-version-min=10.5 -O3' \
+ LDFLAGS='-isysroot /Developer/SDKs/MacOSX10.5.sdk \
+ -mmacosx-version-min=10.5'
+
+to the configure command line. The OS X 10.5 SDK, and NASM 2.07 or later from
+MacPorts, must be installed.
+
+
32-bit Backward-Compatible Build on 64-bit OS/X
-----------------------------------------------
@@ -162,8 +178,9 @@
make udmg
- On 64-bit OS X (10.6 "Snow Leopard" or later), this creates a version of the
+ On 64-bit OS X (10.5 "Leopard") and later, this creates a version of the
Macintosh package/disk image which contains universal i386/x86-64 binaries.
The 32-bit fork of these binaries is backward compatible with OS X 10.4 and
- later, whereas the 64-bit fork is compatible with OS X 10.6 and later. OS X
- 10.4 compatibility SDK required.
+ later (OS X 10.4 compatibility SDK required.) If building on OS X 10.6
+ ("Snow Leopard") or later, the 64-bit fork can be made backward compatible
+ with 10.5 by using the instructions in the "Build Recipes" section.