尝试在iOS中构建VLC时“ C编译器不起作用”

Question

这是我的编译结果的一部分：

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You are ready to build VLC and its contribs
make: '.gas' is up to date.
[info] Building contrib for iOS in '/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/iPhoneOS-arm64'
[info] LD FLAGS SELECTED = '-L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -miphoneos-version-min=5.1'
/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc
error: invalid deployment target '5.1.0' for architecture 'arm64' (requires
      '7.0.0' or later)
1 error generated.
make: Nothing to be done for `fetch'.
error: invalid deployment target '5.1.0' for architecture 'arm64' (requires
      '7.0.0' or later)
1 error generated.
sed -i.orig s/-ansi// freetype/builds/unix/configure
cd freetype && GNUMAKE=make CC="xcrun clang" CXX="xcrun clang++" LD="xcrun ld" AR="xcrun ar" CCAS="gas-preprocessor.pl xcrun clang -c" RANLIB="xcrun ranlib" STRIP="xcrun strip" PATH="/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64/bin:/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/extras/tools/build/bin:/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/extras/tools/build/bin:/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin" CPPFLAGS="-isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -arch arm64 -miphoneos-version-min=5.1 -O3 -g -arch arm64 -miphoneos-version-min=5.1 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -arch arm64 -miphoneos-version-min=5.1 -O3 -g -I/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64/include" CFLAGS="-isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -arch arm64 -miphoneos-version-min=5.1 -O3 -g -arch arm64 -miphoneos-version-min=5.1 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -arch arm64 -miphoneos-version-min=5.1 -O3 -g -I/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64/include -g" CXXFLAGS="-isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -arch arm64 -miphoneos-version-min=5.1 -O3 -g -arch arm64 -miphoneos-version-min=5.1 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -arch arm64 -miphoneos-version-min=5.1 -O3 -g -arch arm64 -miphoneos-version-min=5.1 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -arch arm64 -miphoneos-version-min=5.1 -O3 -g -I/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64/include -g -I/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64/include -g" LDFLAGS="-L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -miphoneos-version-min=5.1 -arch arm64 -miphoneos-version-min=5.1 -L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/lib -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -miphoneos-version-min=5.1 -L/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64/lib" ./configure --without-png --prefix="/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64" --build="arm-apple-darwin11" --host="x86_64-apple-darwin11" --target="x86_64-apple-darwin11" --program-prefix="" --enable-static --disable-shared --disable-dependency-tracking --with-pic
FreeType build system -- automatic system detection
The following settings are used:
  platform                    unix
  compiler                    xcrun clang
  configuration directory     ./builds/unix
  configuration rules         ./builds/unix/unix.mk
If this does not correspond to your system or settings please remove the file
`config.mk' from this directory then read the INSTALL file for help.
Otherwise, simply type `make' again to build the library,
or `make refdoc' to build the API reference (the latter needs python).
cd builds/unix; /bin/sh ./configure  '--without-png' '--prefix=/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/arm-apple-darwin11-arm64' '--build=arm-apple-darwin11' '--host=x86_64-apple-darwin11' '--target=x86_64-apple-darwin11' '--program-prefix=' '--enable-static' '--disable-shared' '--disable-dependency-tracking' '--with-pic'
configure: WARNING: unrecognized options: --disable-dependency-tracking
checking build system type... arm-apple-darwin11
checking host system type... x86_64-apple-darwin11
checking for x86_64-apple-darwin11-gcc... xcrun clang
checking whether the C compiler works... no
configure: error: in `/Users/nikhil.t/VLCKit/MobileVLCKit/ImportedSources/vlc/contrib/iPhoneOS-arm64/freetype/builds/unix':
configure: error: C compiler cannot create executables
See `config.log' for more details

make[1]: *** [setup] Error 77

make: *** [.freetype2] Error 2

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我正在使用VLC提供的指南

我试图在build.sh (ImportedSources/vlc/extras/package/ios/build.sh)更改xcrun路径，但是一旦构建脚本，它就会重置为原始路径。

还有另一种方法可以更改此设置，以便c编译器为我工作吗？
在过去的9天中，我一直都坚持这样做，请提供一些指导。

谢谢，

Albin.KJ

Answer 1

第一个错误是：

error: invalid deployment target '5.1.0' for architecture 'arm64' (requires '7.0.0' or later)

...所以我建议尝试使用它的建议：将部署目标从5.1.0提升到7.0.0，或者删除arm64支持。

Answer 2

可能是错误的编译器路径。

检查CC点是否指向正确的路径，这也是脚本文件中所期望的。

我也有同样的问题，正确设置CC对我来说是成功的窍门。

Answer 3

您的系统缺少必需的编译器。 您需要C ++编译器和C编译器。

您可以使用apt-get install gcc g++安装编译器（GCC和G ++）。