Can't compile LAME for iOS

问题

I'm trying to compile lame mp3 encoder as static library for iOS. I'd like to support all architectures including i686, armv6, armv7, armv7s and arm64. Here is my build script:

#!/bin/bash
DEVELOPER=`xcode-select -print-path`
SDK_VERSION="7.1"
mkdir build
function build_lame()
{
    make distclean
    ./configure \
    CFLAGS="-isysroot ${DEVELOPER}/Platforms/${SDK}.platform/Developer/SDKs/${SDK}${SDK_VERSION}.sdk" \
    CC="${DEVELOPER}/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch ${PLATFORM} -miphoneos-version-min=7.0 " \
    --prefix=/Users/mcrute/Desktop/lame \
    --host="arm-apple-darwin9" \
    --disable-shared \
    --enable-static \
    --disable-decoder \
    --disable-frontend

make -j4
cp "libmp3lame/.libs/libmp3lame.a" "build/libmp3lame-${PLATFORM}.a"
}
SDK="iPhoneSimulator"
PLATFORM="i686"
build_lame
SDK="iPhoneOS"
PLATFORM="armv6"
build_lame
PLATFORM="armv7"
build_lame
PLATFORM="armv7s"
build_lame
PLATFORM="arm64"
build_lame
lipo -create build/* -output build/libmp3lame.a

So the error looks like this:

configure: error: in `/Users/ivan/Desktop/lame-3.99.5':
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details
make: *** No targets specified and no makefile found.  Stop.
cp: libmp3lame/.libs/libmp3lame.a: No such file or directory

Here is my config.log. | tried to remove arm64 from build targets, but script also failed with same error. Google said that I haven't got gcc but I have.. Looking for any suggestion!

回答1:

The problem was solved by adding CPP="*" variable inside configure function. CPP was missed in my env. Edited build script should looks like this:

#!/bin/bash

DEVELOPER=`xcode-select -print-path`

SDK_VERSION="7.1"

mkdir build

function build_lame()
{
    make distclean

    ./configure \
    CPP="/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cpp" \
    CFLAGS="-isysroot ${DEVELOPER}/Platforms/${SDK}.platform/Developer/SDKs/${SDK}${SDK_VERSION}.sdk" \
    CC="${DEVELOPER}/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch ${PLATFORM} -miphoneos-version-min=7.0 " \
    --prefix=/Users/ivan/Desktop/lame-3.99.5 \
    --host="arm-apple-darwin9" \
    --disable-shared \
    --enable-static \
    --disable-decoder \
    --disable-frontend

    make -j4
    cp "libmp3lame/.libs/libmp3lame.a" "build/libmp3lame-${PLATFORM}.a"
}

PLATFORM="i686"
SDK="iPhoneSimulator"
build_lame

PLATFORM="armv6"
SDK="iPhoneOS"
build_lame

PLATFORM="armv7"
build_lame

PLATFORM="armv7s"
build_lame

PLATFORM="arm64"
build_lame

lipo -create build/* -output build/libmp3lame.a

回答2:

From comment to answer.

CPP is being set to a very odd value for some reason.

You are manually setting CC on the configure line to a path inside XcodeDefault.

Try setting CPP on the configure call to an appropriate cpp binary inside XcodeDefault as well.

来源：https://stackoverflow.com/questions/25885483/cant-compile-lame-for-ios

标签

ios

makefile

lame