Infrastructure for producing a universal x86-64/i386/ARM version of libjpeg.a and libturbojpeg.a on OS X, so that the same library can be used to build OS X and iOS apps
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.2.x@793 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/BUILDING.txt b/BUILDING.txt
index 0b3e055..fc583ee 100644
--- a/BUILDING.txt
+++ b/BUILDING.txt
@@ -644,13 +644,32 @@
make udmg [BUILDDIR32={32-bit build directory}]
- On 64-bit OS X systems, this creates a version of the Macintosh package and
- disk image that contains universal i386/x86-64 binaries. You should first
- configure a 32-bit out-of-tree build of libjpeg-turbo, then configure a
- 64-bit out-of-tree build, then run 'make udmg' from the 64-bit build
- directory. The build system will look for the 32-bit build under
- {source_directory}/osxx86 by default, but you can override this by setting
- the BUILDDIR32 variable on the make command line as shown above.
+ On 64-bit OS X systems, this creates a Macintosh package and disk image that
+ contains universal i386/x86-64 binaries. You should first configure a 32-bit
+ out-of-tree build of libjpeg-turbo, then configure a 64-bit out-of-tree
+ build, then run 'make udmg' from the 64-bit build directory. The build
+ system will look for the 32-bit build under {source_directory}/osxx86 by
+ default, but you can override this by setting the BUILDDIR32 variable on the
+ make command line as shown above.
+
+make iosdmg [BUILDDIR32={32-bit build directory}] \
+ [BUILDDIRARMV6={ARM v6 build directory}] \
+ [BUILDDIRARMV7={ARM v7 build directory}] \
+
+ On OS X systems, this creates a Macintosh package and disk image in which the
+ libjpeg-turbo static libraries contain ARM architectures necessary to build
+ iOS applications. If building on an x86-64 system, the binaries will also
+ contain the i386 architecture, as with 'make udmg' above. You should first
+ configure ARM v6 and ARM v7 out-of-tree builds of libjpeg-turbo (see
+ "Building libjpeg-turbo for iOS" above.) If you are building an x86-64
+ version of libjpeg-turbo, you should configure a 32-bit out-of-tree build as
+ well. Next, build libjpeg-turbo as you would normally, using an out-of-tree
+ build. When it is built, run 'make iosdmg' from the build directory. The
+ build system will look for the ARM v6 build under {source_directory}/iosarmv6
+ by default, the ARM v7 build under {source_directory}/iosarmv7 by default,
+ and (if applicable) the 32-bit build under {source_directory}/osxx86 by
+ default, but you can override this by setting the BUILDDIR32, BUILDDIRARMV6,
+ and/or BUILDDIRARMV7 variables on the make command line as shown above.
make sunpkg