intel C++ 无法在 mac osx 上打开“wchar.h”

Question

System OSX 10.14.6, macbook pro

Trying to compile this simple C++ program:

#include <iostream>
int main() {
    sdt::cout << "hello world" << std::endl;
    return 0;
}

Have gcc 9 installed via homebrew, as well as XCode command line tools.

Both of the following work

c++ main.cpp
g++-9 main.cpp

Trying out the latest Intel Parallel Studio, the following fails:

> icpc main.cpp 
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/iosfwd(90),
                 from /Library/Developer/CommandLineTools/usr/include/c++/v1/ios(215),
                 from /Library/Developer/CommandLineTools/usr/include/c++/v1/iostream(38),
                 from main.cpp(1):
/Library/Developer/CommandLineTools/usr/include/c++/v1/wchar.h(119): catastrophic error: cannot open source file "wchar.h"
  #include_next <wchar.h>
                         ^

compilation aborted for main.cpp (code 4)

Can someone tell me what I am missing here?

---

EDIT RESPONSE TO COMMENT ABOUT find

searching from / for wchar.h yields many wchar.h files, including the one from the error:

 ./usr/local/Cellar/gcc/9.2.0_3/include/c++/9.2.0/tr1/wchar.h ./Library/Developer/CommandLineTools/usr/include/c++/v1/wchar.h ./Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/DriverKit19.0.sdk/System/DriverKit/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/WatchSimulator.platform/Developer/SDKs/WatchSimulator.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/SDKs/AppleTVSimulator.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include/wchar.h ./Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/wchar.h ./opt/intel/intelpython3/include/c++/v1/support/solaris/wchar.h ./opt/intel/intelpython3/include/c++/v1/wchar.h ./opt/intel/intelpython3/pkgs/libcxx-4.0.1-hcfea43d_1/include/c++/v1/support/solaris/wchar.h ./opt/intel/intelpython3/pkgs/libcxx-4.0.1-hcfea43d_1/include/c++/v1/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS.sdk/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/DriverKit19.0.sdk/System/DriverKit/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/WatchSimulator.platform/Developer/SDKs/WatchSimulator.sdk/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/SDKs/AppleTVSimulator.sdk/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/include/wchar.h ./dev/fd/3/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/wchar.h ./dev/fd/3/opt/intel/intelpython3/include/c++/v1/support/solaris/wchar.h ./dev/fd/3/opt/intel/intelpython3/include/c++/v1/wchar.h ./dev/fd/3/opt/intel/intelpython3/pkgs/libcxx-4.0.1-hcfea43d_1/include/c++/v1/support/solaris/wchar.h ./dev/fd/3/opt/intel/intelpython3/pkgs/libcxx-4.0.1-hcfea43d_1/include/c++/v1/wchar.h

Answer 1

根据评论，这解决了问题：

icpc main.cpp -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk

Answer 2

Intel C++ compiler on macOS is highly sensitive to the version of Xcode being used. For example, I receive the same errors as above when using icpc 2020 Initial Release and Xcode 11.3.1, but the code compiles and executes just fine with "icpc main.cpp" when using Xcode 11.2.1.

This has been the situation with Intel C++ compilers for some time on macOS... check your Xcode version and try again.