本文介绍了将Xcode 9.0与clang一起使用时发生编译错误(生成多个输出文件时无法指定-o)的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我昨天更新了我的Xcode(9.0版)，从那时起，我再也无法使用clang编译我的代码了.它与Apple本机编译器一起使用时效果很好，但在macports中使用clang给出编译错误.我现在将详细解释...
I updated my Xcode yesterday (version 9.0) and since then I cannot compile my code with clang anymore. It works great with with apple native compiler, but gives a compilation error with clang from macports. I will explain with more details now...
我通常使用clang 4.0，因为它具有openmp支持，并且我通过创建用户定义的设置来更改Xcode，如下图所示.
I usually use clang 4.0 because it has openmp support and I change in Xcode by creating a user-defined setting as in the following figure.
如何在Xcode的Macports中使用clang 4.0的图像
在我更新到Xcode 9.0之前，它一直运行良好.现在，我从clang编译器收到以下错误:
This has been working perfectly for some time until I updated to Xcode 9.0. Now, I get the following error from clang compiler:
在生成多个输出文件时不能指定-o.
cannot specify -o when generating multiple output files.
我研究了一下，很多人说这是因为在编译表中可能有.h文件.我仔细检查过，这不是我的情况.我也认为旧版本的Xcode会发生此错误.
I researched a bit and a lot of people say this is because you may have .h files in the compilation table. I double checked and this is not my case. I also would think that this error would have happened with and older Xcode version.
接下来，我将附加Xcode给出的完整编译命令(虽然有点大！).
Next, I am attaching the complete compilation command given by Xcode (it's a bit big though!).
CompileC /Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/ISET.build/Debug/scieng.build/Objects-normal/x86_64/ComplexFloat.o SciEng/Algebra/ComplexFloat.C normal x86_64 c++ com.apple.compilers.llvm.clang.1_0.compiler
cd /Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver
export LANG=en_US.US-ASCII
/opt/local/bin/clang-mp-4.0 -x c++ -arch x86_64 -fmessage-length=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -Wno-trigraphs -fpascal-strings -O0 -Wno-missing-field-initializers -Wno-missing-prototypes -Wno-return-type -Wno-non-virtual-dtor -Wno-overloaded-virtual -Wno-exit-time-destructors -Wno-missing-braces -Wparentheses -Wswitch -Wno-unused-function -Wno-unused-label -Wno-unused-parameter -Wno-unused-variable -Wunused-value -Wno-empty-body -Wno-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wno-constant-conversion -Wno-int-conversion -Wno-bool-conversion -Wno-enum-conversion -Wno-float-conversion -Wno-non-literal-null-conversion -Wno-objc-literal-conversion -Wno-shorten-64-to-32 -Wno-newline-eof -Wno-c++11-extensions -DCMAKE_INTDIR=\"Debug\" -DVECLIB_MAXIMUM_THREADS=8 -DPARALLEL_ON -DNUM_PROC=8 -DUSE_VTK -DvtkDomainsChemistry_AUTOINIT=1(vtkDomainsChemistryOpenGL2) -DvtkRenderingContext2D_AUTOINIT=1(vtkRenderingContextOpenGL2) -DvtkRenderingCore_AUTOINIT=3(vtkInteractionStyle,vtkRenderingFreeType,vtkRenderingOpenGL2) -DvtkRenderingOpenGL2_AUTOINIT=1(vtkRenderingGL2PSOpenGL2) -DvtkRenderingVolume_AUTOINIT=1(vtkRenderingVolumeOpenGL2) -DUSE_CGAL -DCGAL_USE_MPFR -DCGAL_USE_GMP -DUSE_CGAL_EXACT_ARITHMETIC -DMKL_VERSION_11 -DUSE_PARDISO_MKL -DMKL_NUM_THREADS=8 -DXLC_QNOTEMPINC -DNO_IMPLICIT_TEMPLATE -DSCIENG_CHECK_SUBSCRIPTS -DBOOST_DEBUG=1 -DSET_DEBUG -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -fasm-blocks -fstrict-aliasing -Wdeprecated-declarations -Winvalid-offsetof -mmacosx-version-min=10.13 -g -Wno-sign-conversion -Wno-infinite-recursion -Wno-move -Wno-comma -Wno-block-capture-autoreleasing -Wno-strict-prototypes -Wno-range-loop-analysis -index-store-path /Users/Nathan/Library/Developer/Xcode/DerivedData/ISET-eireryvadmfrwyarbuzbnkopwhid/Index/DataStore -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/Debug/include -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Algebra -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Array -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/AutoDeriv -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/DataModeling -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Function -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/LapackWrap -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/SciEng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Units -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Vector -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/include -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/analysis -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/cholmod -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/cosys -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crackmg2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crgeoeng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crgeoeng2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crgrphysics -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/extract -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/fiber_gfem -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/grgeoeng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/integration -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/ma27solver -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/material -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/material2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/mesh -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/mesh2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/pardiso -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/post -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/pre -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/python -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/renumber -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/tNewtonRaphason -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/topology -I/opt/local/include -I/opt/local/include/vtk-7.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/python2.7 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel -I/Users/Nathan/Documents/Programming/CGAL_CleanVersions/CGAL-4.10/compileXcode/include -I/Users/Nathan/Documents/Programming/CGAL_CleanVersions/CGAL-4.10/include -I/opt/intel/compilers_and_libraries_2016.2.146/mac/mkl/include -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/ISET.build/Debug/scieng.build/DerivedSources/x86_64 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/ISET.build/Debug/scieng.build/DerivedSources -Wmost -Wno-four-char-constants -Wno-unknown-pragmas -F/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/Debug -m64 -fopenmp -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Algebra -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Array -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/AutoDeriv -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/DataModeling -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Function -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/LapackWrap -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/SciEng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Units -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Vector -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/include -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/analysis -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/cholmod -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/cosys -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crackmg2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crgeoeng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crgeoeng2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/crgrphysics -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/extract -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/fiber_gfem -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/grgeoeng -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/integration -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/ma27solver -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/material -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/material2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/mesh -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/mesh2 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/pardiso -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/post -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/pre -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/python -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/renumber -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/tNewtonRaphason -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/topology -isystem /opt/local/include -I/opt/local/include/vtk-7.1 -I/usr/include/python2.7 -I/Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel -I/Users/Nathan/Documents/Programming/CGAL_CleanVersions/CGAL-4.10/compileXcode/include -I/Users/Nathan/Documents/Programming/CGAL_CleanVersions/CGAL-4.10/include -I/opt/intel/compilers_and_libraries_2016.2.146/mac/mkl/include -MMD -MT dependencies -MF /Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/ISET.build/Debug/scieng.build/Objects-normal/x86_64/ComplexFloat.d --serialize-diagnostics /Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/ISET.build/Debug/scieng.build/Objects-normal/x86_64/ComplexFloat.dia -c /Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/SetSolver/SciEng/Algebra/ComplexFloat.C -o /Users/Nathan/Documents/Programming/ISET_CoupledFormulationMerged/ProjectXcodeParallel/lib/ISET.build/Debug/scieng.build/Objects-normal/x86_64/ComplexFloat.o
注意:我使用CMake生成项目.
我可以提供可能需要的更多信息
I can supply any more information that might be needed
感谢您的帮助！
内森
推荐答案
Xcode 9.0将-index-store-path添加到build命令. lang尚不支持. 请参阅以下说明.
Xcode 9.0 adds -index-store-path to the build command. It's not supported in clang yet. See this explanation.
您可以通过在Xcode中禁用生成选项索引建立功能来删除它.
You can remove it by disabling the build option Index-While-Building Functionality in Xcode.
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