Hello Everyone
Could you please help me. I'm using mingw 4.8.1 obtained from here:
http://sourceforge.net/projects/mingwbuilds/files/host-windows/releases/4.8.1/64-bit/threads-win32/seh/x64-4.8.1-release-win32-seh-rev3.7z/download
I use mingw to build ninja from source with libcxx from source on Windows 7
64,
ninja is here: https://github.com/martine/ninja
libcxx is here http://llvm.org/svn/llvm-project/libcxx/trunk
I've made some small patches to ninja, like replacing <wchar.h> with
<cwchar> etc.
But when I compile, I get this error (see more of my comments after this):
--------------------------------
c:\ninja>ninja.bootstrap.exe
[9/13/26] CXX build\disk_interface.o
FAILED: clang++ -MMD -MT build\disk_interface.o -MF
build\disk_interface.o.d -nostdinc++ -I/libcxx/include -march=corei7
-std=c++11 -Wall -Wextra -Wno-deprecated -Wno-unused-parameter -fno-rtti
-fno-exceptions -pipe -Wno-missing-field-initializers -DNINJA_
PYTHON="python.exe" -O3 -DNDEBUG -D_WIN32_WINNT=0x0601
-DWIN32_LEAN_AND_MEAN -c src\disk_interface.cc -o build\disk_interface.o
In file included from src\disk_interface.cc:24:
In file included from
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\windows.h:114:
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\stralign.h:116:37:
error: call to 'wcschr' is ambiguous
if(WSTR_ALIGNED(String)) return wcschr((PCWSTR)String,Character);
^~~~~~
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\wchar.h:840:34:
note: candidate function
_CONST_RETURN wchar_t *__cdecl wcschr(const wchar_t *_Str,wchar_t _Ch);
^
/libcxx/include\cwchar:180:49: note: candidate function
inline _LIBCPP_INLINE_VISIBILITY const wchar_t* wcschr(const wchar_t* __s,
wchar_t __c) {return ::wcschr(__s, __c);}
^
In file included from src\disk_interface.cc:24:
In file included from
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\windows.h:114:
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\stralign.h:120:37:
error: call to 'wcsrchr' is ambiguous
if(WSTR_ALIGNED(String)) return wcsrchr((PCWSTR)String,Character);
^~~~~~~
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\wchar.h:851:34:
note: candidate function
_CONST_RETURN wchar_t *__cdecl wcsrchr(const wchar_t *_Str,wchar_t _Ch);
^
/libcxx/include\cwchar:186:49: note: candidate function
inline _LIBCPP_INLINE_VISIBILITY const wchar_t* wcsrchr(const wchar_t* __s,
wchar_t __c) {return ::wcsrchr(__s, __c);}
^
2 errors generated.
[4/13/26] CXX build\build.o
FAILED: clang++ -MMD -MT build\build.o -MF build\build.o.d -nostdinc++
-I/libcxx/include -march=corei7 -std=c++11 -Wall -Wextra -Wno-deprecated
-Wno-unused-parameter -fno-rtti -fno-exceptions -pipe
-Wno-missing-field-initializers -DNINJA_PYTHON="python.exe
" -O3 -DNDEBUG -D_WIN32_WINNT=0x0601 -DWIN32_LEAN_AND_MEAN -c src\build.cc
-o build\build.o
In file included from src\build.cc:33:
In file included from src/subprocess.h:25:
In file included from
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\windows.h:114:
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\stralign.h:116:37:
error: call to 'wcschr' is ambiguous
if(WSTR_ALIGNED(String)) return wcschr((PCWSTR)String,Character);
^~~~~~
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\wchar.h:840:34:
note: candidate function
_CONST_RETURN wchar_t *__cdecl wcschr(const wchar_t *_Str,wchar_t _Ch);
^
/libcxx/include\cwchar:180:49: note: candidate function
inline _LIBCPP_INLINE_VISIBILITY const wchar_t* wcschr(const wchar_t* __s,
wchar_t __c) {return ::wcschr(__s, __c);}
^
In file included from src\build.cc:33:
In file included from src/subprocess.h:25:
In file included from
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\windows.h:114:
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\stralign.h:120:37:
error: call to 'wcsrchr' is ambiguous
if(WSTR_ALIGNED(String)) return wcsrchr((PCWSTR)String,Character);
^~~~~~~
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\wchar.h:851:34:
note: candidate function
_CONST_RETURN wchar_t *__cdecl wcsrchr(const wchar_t *_Str,wchar_t _Ch);
^
/libcxx/include\cwchar:186:49: note: candidate function
inline _LIBCPP_INLINE_VISIBILITY const wchar_t* wcsrchr(const wchar_t* __s,
wchar_t __c) {return ::wcsrchr(__s, __c);}
^
2 errors generated.
[1/13/26] CXX build\line_printer.o
FAILED: clang++ -MMD -MT build\line_printer.o -MF build\line_printer.o.d
-nostdinc++ -I/libcxx/include -march=corei7 -std=c++11 -Wall -Wextra
-Wno-deprecated -Wno-unused-parameter -fno-rtti -fno-exceptions -pipe
-Wno-missing-field-initializers -DNINJA_PYTH
ON="python.exe" -O3 -DNDEBUG -D_WIN32_WINNT=0x0601 -DWIN32_LEAN_AND_MEAN -c
src\line_printer.cc -o build\line_printer.o
In file included from src\line_printer.cc:26:
In file included from
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\windows.h:114:
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\stralign.h:116:37:
error: call to 'wcschr' is ambiguous
if(WSTR_ALIGNED(String)) return wcschr((PCWSTR)String,Character);
^~~~~~
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\wchar.h:840:34:
note: candidate function
_CONST_RETURN wchar_t *__cdecl wcschr(const wchar_t *_Str,wchar_t _Ch);
^
/libcxx/include\cwchar:180:49: note: candidate function
inline _LIBCPP_INLINE_VISIBILITY const wchar_t* wcschr(const wchar_t* __s,
wchar_t __c) {return ::wcschr(__s, __c);}
^
In file included from src\line_printer.cc:26:
In file included from
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\windows.h:114:
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\stralign.h:120:37:
error: call to 'wcsrchr' is ambiguous
if(WSTR_ALIGNED(String)) return wcsrchr((PCWSTR)String,Character);
^~~~~~~
c:\mingw\bin\..\lib\clang\3.4\../../../x86_64-w64-mingw32/include\wchar.h:851:34:
note: candidate function
_CONST_RETURN wchar_t *__cdecl wcsrchr(const wchar_t *_Str,wchar_t _Ch);
^
/libcxx/include\cwchar:186:49: note: candidate function
inline _LIBCPP_INLINE_VISIBILITY const wchar_t* wcsrchr(const wchar_t* __s,
wchar_t __c) {return ::wcsrchr(__s, __c);}
^
2 errors generated.
[0/13/26] CXX build\graph.o
ninja: build stopped: subcommand failed.
--------------------------------
The problem appears to be in mingw's stralign header.
C:\mingw\x86_64-w64-mingw32\include\stralign.h
If I change line 116 AND line 120 of it to apply ::
i.e. change:
if(WSTR_ALIGNED(String)) return wcschr((PCWSTR)String,Character);
to:
if(WSTR_ALIGNED(String)) return ::wcschr((PCWSTR)String,Character);
and change:
if(WSTR_ALIGNED(String)) return wcsrchr((PCWSTR)String,Character);
to:
if(WSTR_ALIGNED(String)) return ::wcsrchr((PCWSTR)String,Character);
Then I can build successfully.
Could somebody apply a patch such as above to stralign.h or a better one if
there is one that would fix this problem?
I would like to submit my changes back to ninja, but whilst a problem like
this exists, they're not likely to accept it as the situation would prevent
ninja building correctly.
I build llvm and libcxx and ninja with mingw so I would like these all to
work together smoothly.
Thanks
Glen
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