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POBuild ICU for 64 bit iOS
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copied!<p>I'm trying to move my app to 64 bit arm processors (and 64 bit simulator), and for that I need to recompile the ICU library (49).</p> <p>After three days I reached the point where the library compiles fine, and the script I'm using puts together various architectures into one (snippet):</p> <pre><code># ... #x86_64 DEVROOT=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer SDKROOT=$DEVROOT/SDKs/iPhoneSimulator7.0.sdk SYSROOT=$SDKROOT export CFLAGS="-I$SDKROOT/usr/include/ -I./include/ $ICU_FLAGS -arch x86_64 -pipe -no-cpp-precomp -isysroot $SDKROOT -miphoneos-version-min=7.0 -O3 -DU_HAVE_GCC_ATOMICS=0" export CXXFLAGS="$CFLAGS" export CC="$TOOLCHAINSROOT/usr/bin/clang" export CXX="$TOOLCHAINSROOT/usr/bin/clang++" export LDFLAGS="-L$SDKROOT/usr/lib/ -isysroot $SDKROOT -Wl,-dead_strip -miphoneos-version-min=7.0" mkdir -p $BUILDDIR/iosbuild/x86_64 cd $BUILDDIR/iosbuild/x86_64 gnumake clean sh $ICU_PATH/source/configure --host=arm-apple-darwin --enable-static --disable-shared -with-cross-build=$BUILDDIR/hostbuild --prefix=$BUILDDIR/iosbuild/x86_64 --with-data-packaging=library gnumake gnumake clean install # ... #x86_64 mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libicudata cd ${BUILDDIR}/iosbuild/x86_64/lib/libicudata ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libicudata.a" mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libicui18n cd ${BUILDDIR}/iosbuild/x86_64/lib/libicui18n ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libicui18n.a" mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libicuio cd ${BUILDDIR}/iosbuild/x86_64/lib/libicuio ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libicuio.a" mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libicule cd ${BUILDDIR}/iosbuild/x86_64/lib/libicule ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libicule.a" mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libiculx cd ${BUILDDIR}/iosbuild/x86_64/lib/libiculx ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libiculx.a" mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libicutest cd ${BUILDDIR}/iosbuild/x86_64/lib/libicutest ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libicutest.a" mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libicutu cd ${BUILDDIR}/iosbuild/x86_64/lib/libicutu ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libicutu.a" mkdir -p ${BUILDDIR}/iosbuild/x86_64/lib/libicuuc cd ${BUILDDIR}/iosbuild/x86_64/lib/libicuuc ar -x "${BUILDDIR}/iosbuild/x86_64/lib/libicuuc.a" ar -qc ${BUILDDIR}/iosbuild/x86_64/lib/libcombinedicu.a ${BUILDDIR}/iosbuild/x86_64/lib/libicudata/*.o ${BUILDDIR}/iosbuild/x86_64/lib/libicudata/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libicuuc/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libicui18n/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libicuio/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libicule/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libiculx/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libicutest/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libicutu/*.ao ${BUILDDIR}/iosbuild/x86_64/lib/libicuuc/*.ao # ... #put them together lipo -create -arch x86_64 "${BUILDDIR}/iosbuild/x86_64/lib/libcombinedicu.a" -arch i386 "${BUILDDIR}/iosbuild/i386/lib/libcombinedicu.a" "${BUILDDIR}/iosbuild/arm64/lib/libcombinedicu.a" "${BUILDDIR}/iosbuild/armv7s/lib/libcombinedicu.a" -arch armv7 "${BUILDDIR}/iosbuild/armv7/lib/libcombinedicu.a" -o "$FRAMEWORK_DIR/Versions/Current/$FRAMEWORK_NAME" </code></pre> <p>The problem is, when I'm compiling the app from XCode (for the 64 bit simulator), I get the following errors regarding the built ICU framework:</p> <pre><code>ld: warning: directory not found for option '-F"/Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxPro/../BIMxEngine/extern/icu"' duplicate symbol _OSAtomicIncrement32 in: /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(unistr.ao) /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(mutex.ao) duplicate symbol _OSAtomicIncrement32Barrier in: /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(unistr.ao) /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(mutex.ao) duplicate symbol _OSAtomicDecrement32 in: /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(unistr.ao) /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(mutex.ao) duplicate symbol _OSAtomicDecrement32Barrier in: /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(unistr.ao) /Users/gliptak/ac/m-220/Sources/VBExplorer/BIMxEngine/extern/icu/ICU.framework/ICU(mutex.ao) ... ld: 64 duplicate symbols for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) </code></pre> <p><strike>As far as I can tell the mentioned functions are declared in system headers, and are not inline, so how can this error exist?</strike></p> <p>Do you have any ideas what I might do wrong?</p> <p><strong>UPDATE:</strong> indeed, those functions are static inline, so they cause the problem. So the question is now how do I avoid duplication?</p> <p><strong>UPDATE:</strong> tried the -std=gnu89 flag for the C compiler, no effect...</p>

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