[Pixman] pixman on iOS

[cu]

I think the difficulty refers to the fact that pixman arm assembly code
can't be directly compiled for iOS.

Does this patch still require the precompiled-disassembled version of
pixman_arm_neon.S?


Jeremy Huddleston wrote:
> I noticed this message in the release notes for 0.24.4:
> """
> This release also contains some basic support for using the NEON
> acceleration on iOS, although actually building pixman on that platform
> remains difficult.
> """
>
> I was curious about what was so difficult about building pixman for iOS and decided to lend a hand.  Attached are 2 patches for review and build instructions for how I got it to build.
>
> The script will build pixman master for iOS (after the 2 patches are applied).  The patches fix TLS detection and add support for --disable-libpng (because I didn't feel like building libpng, too, and pkg-config picked up my host libpng).
>
> Everything built just fine.  I haven't tested it, but this should make it easier for people to use in iOS if they want.  You'll need to adjust the path to the SDK and the minimum version of iOS that you want to support as appropriate.
>
>
>   
> ------------------------------------------------------------------------
>
>
>
> SDK="/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk"
> export CC=$(xcrun -sdk iphoneos -find clang) 
> export AS=$(xcrun -sdk iphoneos -find as)
> export CPPFLAGS="-isysroot ${SDK}"
> export CFLAGS="-g3 -gdwarf-2 -Os -pipe -miphoneos-version-min=5.0 -arch armv6 -arch armv7"
> export LDFLAGS="-isysroot ${SDK} -miphoneos-version-min=5.0 -arch armv6 -arch armv7"
> ./configure --host=arm-apple-darwin
> make
>
> --Jeremy
>
>   
> ------------------------------------------------------------------------
>
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