libjpeg编译命令

编译环境：

    Xcode 9.2

    Mac OS 10.12.6

    libjpeg(1.5.3)

——————————libjpeg—arm64—————————————————

sudo sh ../configure CC="/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" CFLAGS="-mfloat-abi=softfp -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk -O3 -arch arm64 -miphoneos-version-min=7.0 -funwind-tables

" --host=armv8-apple-darwin --with-jpeg8

——————————libjpeg—armv7—————————————————

sudo sh ../configure CC="/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" CFLAGS="-mfloat-abi=softfp -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk -O3 -arch armv7 -miphoneos-version-min=7.0" --host=arm-apple-darwin10 --with-jpeg8

——————————libjpeg—armv7s—————————————————

sudo sh ../configure CC="/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" CFLAGS="-mfloat-abi=softfp -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk -O3 -arch armv7s -miphoneos-version-min=7.0" --host=arm-apple-darwin10 --with-jpeg8

——————————libjpeg—X_86—————————————————

sudo sh ../configure --host x86_64-apple-darwin NASM=/usr/local/bin/nasm

——————————libjpeg—i386—————————————————

sudo sh ../configure --host i686-apple-darwin CFLAGS='-O3 -m32' LDFLAGS=-m32