r241432 - Teach mingw toolchain the msys2 mingw-w64 distribution C++ dirs.

İsmail Dönmez ismail at donmez.ws
Fri Jul 10 11:45:38 PDT 2015 

The problem is this exact command line worked since forever and only
recently regressed thats why I report it.

On Fri, Jul 10, 2015 at 9:38 PM, Yaron Keren <yaron.keren at gmail.com> wrote:
> clang can locate  /usr/x86_64-w64-mingw32/sys-root if provided to the
> -sysroot option or deduce sysroot automatically if it finds
> /usr/x86_64-w64-mingw32/sys-root/bin/gcc binary on the path.
>
> clang does not deduce the sysroot from the -isystem directory by itself.
>
>
>
>
> 2015-07-10 19:57 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
>>
>> Anyhow this is not a nice example since it uses Cygwin's ld. A better
>> example from Linux side:
>>
>> λ clang -v -target x86_64-w64-mingw32 -isystem
>> /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
>> randomworks/windows/nic.c
>> clang version 3.7.0 (trunk 241471)
>> Target: x86_64-w64-windows-gnu
>> Thread model: posix
>>  "/opt/clang/bin/clang-3.7" -cc1 -triple x86_64-w64-windows-gnu
>> -emit-obj -mrelax-all -disable-free -main-file-name nic.c
>> -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno
>> -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64
>> -momit-leaf-frame-pointer -v -dwarf-column-info -resource-dir
>> /opt/clang/bin/../lib64/clang/3.7.0 -isystem
>> /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
>> -internal-isystem /opt/clang/bin/../lib64/clang/3.7.0/include
>> -internal-isystem include -internal-isystem include-fixed
>> -internal-isystem /usr/mingw32/include -internal-isystem /usr/include
>> -fdebug-compilation-dir /home/ismail -ferror-limit 19 -fmessage-length
>> 126 -mstackrealign -fno-use-cxa-atexit -fobjc-runtime=gcc
>> -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/nic-08e945.o -x
>> c randomworks/windows/nic.c
>> clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
>> x86_64-suse-linux
>> ignoring nonexistent directory "include"
>> ignoring nonexistent directory "include-fixed"
>> ignoring nonexistent directory "/usr/mingw32/include"
>> #include "..." search starts here:
>> #include <...> search starts here:
>>  /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
>>  /opt/clang/bin/../lib64/clang/3.7.0/include
>>  /usr/include
>> End of search list.
>>  "/usr/bin/x86_64-w64-mingw32-ld" -m i386pep -Bdynamic -o a.exe crt2.o
>> crtbegin.o -L -L/usr/lib -L/usr/mingw32/lib /tmp/nic-08e945.o
>> -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32
>> -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s -lgcc -lmoldname
>> -lmingwex -lmsvcrt crtend.o
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find crt2.o: No such file or
>> directory
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find crtbegin.o: No such file
>> or directory
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingw32
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc_s
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmoldname
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingwex
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmsvcrt
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -ladvapi32
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lshell32
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -luser32
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lkernel32
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingw32
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc_s
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmoldname
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingwex
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find -lmsvcrt
>> /usr/bin/x86_64-w64-mingw32-ld: cannot find crtend.o: No such file or
>> directory
>> clang-3.7: error: linker command failed with exit code 1 (use -v to
>> see invocation)
>>
>>
>> On Fri, Jul 10, 2015 at 7:54 PM, İsmail Dönmez <ismail at donmez.ws> wrote:
>> > This is without any patches (r241901-win64) and the original command
>> > line is there:
>> >
>> > clang -v -target x86_64-w64-mingw32 -isystem
>> >  C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include -isystem
>> >  C:/mingw-w64-6.0.0/include/c++/6.0.0 -isystem
>> >  C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>> >  randomworks/windows/nic.c
>> >
>> >
>> > On Fri, Jul 10, 2015 at 7:51 PM, Yaron Keren <yaron.keren at gmail.com>
>> > wrote:
>> >> This is with or without any patches? what is the original command line?
>> >>
>> >>
>> >> 2015-07-10 19:30 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
>> >>>
>> >>> Hi,
>> >>>
>> >>> I meant to try these but both on cygwin and linux hosts we have
>> >>> linking regression that goes like:
>> >>>
>> >>> λ clang -v -target x86_64-w64-mingw32 -isystem
>> >>> C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include -isystem
>> >>> C:/mingw-w64-6.0.0/include/c++/6.0.0 -isystem
>> >>> C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>> >>> randomworks/windows/nic.c
>> >>> clang version 3.7.0 (https://github.com/llvm-mirror/clang.git
>> >>> ca355c9f413a6ca4941e3033e89e5242e29bd802)
>> >>> Target: x86_64-w64-windows-gnu
>> >>> Thread model: posix
>> >>>  "C:\\Program Files\\LLVM\\bin\\clang.exe" -cc1 -triple
>> >>> x86_64-w64-windows-gnu -emit-obj -mrelax-all -disable-free
>> >>> -main-file-name nic.c -mrelocation-model pic -pic-level 2
>> >>> -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases
>> >>> -munwind-tables -target-cpu x86-64 -momit-leaf-frame-pointer -v
>> >>> -dwarf-column-info -resource-dir "C:\\Program
>> >>> Files\\LLVM\\bin\\..\\lib\\clang\\3.7.0" -isystem
>> >>> C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include -isystem
>> >>> C:/mingw-w64-6.0.0/include/c++/6.0.0 -isystem
>> >>> C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>> >>> -internal-isystem "C:\\Program
>> >>> Files\\LLVM\\bin\\..\\lib\\clang\\3.7.0\\include" -internal-isystem
>> >>> include -internal-isystem include-fixed -internal-isystem
>> >>> "C:\\cygwin64\\mingw32\\include" -internal-isystem
>> >>> "C:\\cygwin64\\include" -std=c11 -fdebug-compilation-dir
>> >>> "C:\\cygwin64\\home\\ismail" -ferror-limit 19 -fmessage-length 0
>> >>> -mstackrealign -fno-use-cxa-atexit -fobjc-runtime=gcc
>> >>> -fdiagnostics-show-option -fcolor-diagnostics -fansi-escape-codes -o
>> >>> "C:\\cygwin64\\tmp\\nic-6bff3b.o" -x c randomworks/windows/nic.c
>> >>> clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
>> >>> x86_64-pc-windows-msvc
>> >>> ignoring nonexistent directory "include"
>> >>> ignoring nonexistent directory "include-fixed"
>> >>> ignoring nonexistent directory "C:\cygwin64\mingw32\include"
>> >>> ignoring nonexistent directory "C:\cygwin64\include"
>> >>> #include "..." search starts here:
>> >>> #include <...> search starts here:
>> >>>  C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include
>> >>>  C:/mingw-w64-6.0.0/include/c++/6.0.0
>> >>>  C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>> >>>  C:\Program Files\LLVM\bin\..\lib\clang\3.7.0\include
>> >>> End of search list.
>> >>>  "C:\\cygwin64\\bin\\ld.exe" -m i386pep -Bdynamic -o a.exe crt2.o
>> >>> crtbegin.o -L "-LC:\\cygwin64\\lib" "-LC:\\cygwin64\\mingw32\\lib"
>> >>> "C:\\cygwin64\\tmp\\nic-6bff3b.o" -lmingw32 -lgcc_s -lgcc -lmoldname
>> >>> -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32
>> >>> -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt crtend.o
>> >>> /usr/bin/ld: cannot find crt2.o: No such file or directory
>> >>> /usr/bin/ld: cannot find crtbegin.o: No such file or directory
>> >>> /usr/bin/ld: cannot find -lmingw32
>> >>> /usr/bin/ld: cannot find -lgcc_s
>> >>> /usr/bin/ld: cannot find -lgcc
>> >>> /usr/bin/ld: cannot find -lmoldname
>> >>> /usr/bin/ld: cannot find -lmingwex
>> >>> /usr/bin/ld: cannot find -lmsvcrt
>> >>> /usr/bin/ld: cannot find -lmingw32
>> >>> /usr/bin/ld: cannot find -lgcc_s
>> >>> /usr/bin/ld: cannot find -lgcc
>> >>> /usr/bin/ld: cannot find -lmoldname
>> >>> /usr/bin/ld: cannot find -lmingwex
>> >>> /usr/bin/ld: cannot find -lmsvcrt
>> >>> /usr/bin/ld: cannot find crtend.o: No such file or directory
>> >>> clang.exe: error: linker command failed with exit code 1 (use -v to
>> >>> see invocation)
>> >>>
>> >>> Any ideas? Also reproducible with gcc 5.1.1 on Linux.
>> >>>
>> >>>
>> >>> On Tue, Jul 7, 2015 at 6:19 PM, Yaron Keren <yaron.keren at gmail.com>
>> >>> wrote:
>> >>> > Here is a patch honoring sysroot for ld, let me know if it works for
>> >>> > you.
>> >>> >
>> >>> > 2015-07-07 12:13 GMT+03:00 Yaron Keren <yaron.keren at gmail.com>:
>> >>> >>
>> >>> >> Hi,  Please see if the attached patch works on opensuse.
>> >>> >>
>> >>> >> I'll look at the cygnus ld issue later.
>> >>> >>
>> >>> >>
>> >>> >> 2015-07-07 10:38 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
>> >>> >>>
>> >>> >>> Hi,
>> >>> >>>
>> >>> >>> On Mon, Jul 6, 2015 at 10:40 AM, Yaron Keren
>> >>> >>> <yaron.keren at gmail.com>
>> >>> >>> wrote:
>> >>> >>> > Author: yrnkrn
>> >>> >>> > Date: Mon Jul  6 02:40:10 2015
>> >>> >>> > New Revision: 241432
>> >>> >>> >
>> >>> >>> > URL: http://llvm.org/viewvc/llvm-project?rev=241432&view=rev
>> >>> >>> > Log:
>> >>> >>> > Teach mingw toolchain the msys2 mingw-w64 distribution C++ dirs.
>> >>> >>> >
>> >>> >>> >
>> >>> >>> > Modified:
>> >>> >>> >     cfe/trunk/lib/Driver/MinGWToolChain.cpp
>> >>> >>> >     cfe/trunk/lib/Driver/ToolChains.h
>> >>> >>>
>> >>> >>> I tried this revision on openSUSE MinGW toolchain and its missing
>> >>> >>> one
>> >>> >>> include path, which is $GCC_ROOT/nclude/c++/x86_64-w64-mingw32
>> >>> >>> which
>> >>> >>> contains "bits" and "ext" directories. Would you mind adding that
>> >>> >>> to
>> >>> >>> the list too?
>> >>> >>>
>> >>> >>> Thanks!
>> >>> >>
>> >>> >>
>> >>> >
>> >>
>> >>
>
>

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