clang/clang++ doesn't find C/C++ headers in windows?

Question

1 hour ago I downloaded llvm-3.6.0-rc4-win32.exe from http://llvm.org/pre-releases/3.6.0/ .

I tried to compile simple C code that just print "hello" , but it didn't compile , because clang.exe can't find stdio.h. when I use clang-cl.exe with the same code , it worked .

I also have the same problem with clang++ even with iostream , I add -I flag to GCC (4.9.1) C++ headers , the result:

C:\Users\One\Desktop>clang++ -I c:\MinGW\x86_64-w64-mingw32\include\c++ main.cpp -lib=libstdc++

In file included from main.cpp:1:
c:\MinGW\x86_64-w64-mingw32\include\c++\iostream:38:10: fatal error:'bits/c++config.h' file not found

#include <bits/c++config.h>
1 error generated.

Anyone know how to fix this ?

Edit : I found bits/c++config.h in MinGW folders I add it to the -I flag and other .

I result a link error :

C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lib=libstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1//libstdc++.dll.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1//libstdc++.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/\libstdc++.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/libstdc++.dll.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/libstdc++.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1\libstdc++.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1//libstdc++.dll.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1//libstdc++.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/libstdc++.dll.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/libstdc++.a when searching for -lstdc++
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lstdc++
    C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmingw32.a when searching for -lmingw32
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libmingw32.a when searching for -lmingw32
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmingw32.a when searching for -lmingw32
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lmingw32
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libgcc_s.a when searching for -lgcc_s
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libgcc_s.a when searching for -lgcc_s
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libgcc_s.a when searching for -lgcc_s
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lgcc_s
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1//libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/\libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/libgcc.a when searching for -lgcc
    C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1\libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1//libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmoldname.a when searching for -lmoldnam
e
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libmoldname.a when searching for -lmoldnam
e
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmoldname.a when searching for -lmoldnam
e
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lmoldname
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmingwex.a when searching for -lmingwex
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libmingwex.a when searching for -lmingwex
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmingwex.a when searching for -lmingwex
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lmingwex
    C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmsvcrt.a when searching for -lmsvcrt
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libmsvcrt.a when searching for -lmsvcrt
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lmsvcrt
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libpthread.dll.a when searching for -lpthr
ead
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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ead
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libpthread.a when searching for -lpthread
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lpthread
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
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2
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -ladvapi32
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lshell32
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
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C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
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.1\libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1//libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/libgcc.a when searching for -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lgcc
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmoldname.a when searching for -lmoldnam
e
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libmoldname.a when searching for -lmoldnam
e
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmoldname.a when searching for -lmoldnam
e
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lmoldname
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmingwex.a when searching for -lmingwex
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libmingwex.a when searching for -lmingwex
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmingwex.a when searching for -lmingwex
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lmingwex
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmsvcrt.a when searching for -lmsvcrt
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib\libmsvcrt.a when searching for -lmsvcrt
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: skipping incompatible C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9
.1/../../../../x86_64-w64-mingw32/lib/libmsvcrt.a when searching for -lmsvcrt
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/4.9.1/../../../../x86_64-w64-mingw32/
bin/ld.exe: cannot find -lmsvcrt
collect2.exe: error: ld returned 1 exit status
clang++.exe: error: linker (via gcc) command failed with exit code 1 (use -v to
see invocation)

why all of this ? should I always make all this to make clang works.

Is there actually a `"bits\c++config.h"` somewhere in your `"MinGW\...\include"` directory? — Mats Petersson, Feb 27 '15 at 06:39
I'm not using clang on windows, so can't really say - on Linux, it does find the libraries. But it could be that there is no standard placement for where these files are on Windows, and of course scanning the entire disk to (possibly) find the right header-files during installation seems excessive. Try using `clang -v` to see what path it is actually using... — Mats Petersson, Feb 27 '15 at 07:31
@MatsPetersson `clang -v` just print me the version,target,thread noting else — CodeMan, Feb 27 '15 at 07:40
Right I meant add `-v` to the regular command-line that you use to compile the source with - e.g. `clang -v hello.c` or `clang++ -v hello.cpp` — Mats Petersson, Feb 27 '15 at 07:44
@MatsPetersson you are right , I realize that it's tries to find MinGW directories that <= version 4.8.2 , my own is 4.9.1 I think that is the problem, Thanks — CodeMan, Feb 27 '15 at 08:09
Possible duplicate of [How to use clang with mingw-w64 headers on windows](https://stackoverflow.com/questions/39871656/how-to-use-clang-with-mingw-w64-headers-on-windows) — jdhao, Mar 29 '18 at 14:19

Ahmed T. Ali · Accepted Answer · 2015-02-28T09:57:20.320

5

Try this one

Installing Clang 3.5 for Windows.

Regards.

edited Feb 28 '15 at 09:57

answered Feb 28 '15 at 09:14

Ahmed T. Ali

1,021
1
13
22

score 4 · Answer 2 · answered Nov 07 '17 at 01:24

The current method to do it is...

Install mingw-w64-install.exe (currently 7.2.0, make sure to set "i686" to "x86_64" when asked)
Install Clang for Windows (64-bit) (currently 5.0.0)

When asked, default paths. Place them both in your system path (accessible for all users). The Clang installer will put clang in the path if you ask it to, for Mingw, you have to do it manually, I recommend PathEditor2. For the current version of Mingw, the directory to add to your path is C:\Program Files\mingw-w64\x86_64-7.2.0-posix-seh-rt_v5-rev0\mingw64\bin

Then when invoking Clang, use...

clang -target x86_64-pc-windows-gnu test.c -otest.exe

Clang will search your path to find the Mingw headers and libraries, make sure you only have one version in your path.

score 0 · Answer 3 · answered Jun 11 '19 at 17:48

We attempted to run the test of Clang as described in llvm.org/docs/GettingStartedVS.html. That procedure failed for similar reasons indicating that stdio.h was not found. Attempting installation on another machine it was successful. We ran a few verbose runs to identify the difference between the machines using "-v" flag for a verbose description of the linking process.

We found that the working installation had the default mapping of Windows System32 directory (C:\Windows\System32) in the path variables. The failing machine did not have that path mapped. We added the path to the failing machine and everything worked.

This may have been a change implemented by system administrators for security reasons. If adding the path is not allowed, add “-isystem C:\file\location\here” to the clang command for each file you wish to include.

clang/clang++ doesn't find C/C++ headers in windows?

3 Answers3

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