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Diffstat (limited to 'tools/depends/native/gas-preprocessor/README')
| -rw-r--r-- | tools/depends/native/gas-preprocessor/README | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/depends/native/gas-preprocessor/README b/tools/depends/native/gas-preprocessor/README new file mode 100644 index 0000000..2c8ab2b --- /dev/null +++ b/tools/depends/native/gas-preprocessor/README @@ -0,0 +1,13 @@ +To configure Libav for iOS: + +./configure --enable-cross-compile --arch=arm --target-os=darwin --cc='clang -arch armv7' --sysroot=$(xcrun --sdk iphoneos --show-sdk-path) --cpu=cortex-a8 --enable-pic + +If deploying to all generations, it's recommended to do separate out-of-tree +builds for each architecture, then lipo together the resulting libs. For +instance, assuming separate builds in armv6 and armv7: + +lipo -create -arch armv6 armv6/libavcodec/libavcodec.a -arch armv7 armv7/libavcodec/libavcodec.a -output universal/libavcodec.a + +and similar for each library. Then in XCode, make sure to build for both armv6 +and armv7. If you only care about one generation (since the armv6 devices are +too slow for instance), then lipo is unnecessary of course. |