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

Yaron Keren yaron.keren at gmail.com
Sun Jul 12 03:27:42 PDT 2015


Ok, please try the attached patch that looks for $TARGET-gcc before looking
for gcc.


2015-07-12 9:38 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:

> Thats /usr/bin/gcc which is not the mingw one, if gcc in PATH being
> important then I suggest looking for $TARGET-gcc first which will work
> for mingw-w64 case too.
>
> On Sun, Jul 12, 2015 at 8:09 AM, Yaron Keren <yaron.keren at gmail.com>
> wrote:
> > What is the output from
> >
> >> which gcc
> >
> >
> >
> > 2015-07-11 13:59 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
> >>
> >> Hi,
> >>
> >> Not really answering your questions but I think the problem is clang
> >> is invoking $TARGET-ld directly, it used to let gcc link so gcc would
> >> figure out the linker details. See a run with clang 3.6.1 on same
> >> setup:
> >>
> >> λ /usr/bin/clang -v -target x86_64-w64-mingw32 -isystem
> >> /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
> >> randomworks/windows/nic.c -liphlpapi
> >> clang version 3.6.1 (tags/RELEASE_361/final 238133)
> >> Target: x86_64-w64-windows-gnu
> >> Thread model: posix
> >>  "/usr/bin/clang-3.6" -cc1 -triple x86_64-w64-windows-gnu -emit-obj
> >> -mrelax-all -disable-free -disable-llvm-verifier -main-file-name nic.c
> >> -mrelocation-model static -mthread-model posix -mdisable-fp-elim
> >> -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables
> >> -target-cpu x86-64 -v -dwarf-column-info -resource-dir
> >> /usr/bin/../lib64/clang/3.6.1 -isystem
> >> /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/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-e31eb1.o -x
> >> c randomworks/windows/nic.c
> >> clang -cc1 version 3.6.1 based upon LLVM 3.6.1 default target
> >> x86_64-suse-linux
> >> ignoring nonexistent directory
> >> "/usr/bin/../lib64/clang/3.6.1/../../../i686-w64-mingw32/include"
> >> ignoring nonexistent directory
> >> "/usr/bin/../lib64/clang/3.6.1/../../../x86_64-w64-mingw32/include"
> >> ignoring nonexistent directory "/mingw/include"
> >> ignoring duplicate directory
> >> "/usr/bin/../lib64/clang/3.6.1/../../../include"
> >> #include "..." search starts here:
> >> #include <...> search starts here:
> >>  /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
> >>  /usr/local/include
> >>  /usr/bin/../lib64/clang/3.6.1/include
> >>  /usr/bin/../lib64/clang/3.6.1/../../../include
> >> End of search list.
> >>  "/usr/bin/x86_64-w64-mingw32-gcc" -v -isystem
> >> /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include -m64 -o
> >> a.exe /tmp/nic-e31eb1.o -liphlpapi
> >> Using built-in specs.
> >> COLLECT_GCC=/usr/bin/x86_64-w64-mingw32-gcc
> >> COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/lto-wrapper
> >> Target: x86_64-w64-mingw32
> >> Configured with: ../configure --prefix=/usr --bindir=/usr/bin
> >> --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/lib64
> >> --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share
> >> --build=x86_64-suse-linux-gnu --host=x86_64-suse-linux-gnu
> >> --target=x86_64-w64-mingw32 --with-gnu-as --with-gnu-ld --verbose
> >> --without-newlib --disable-multilib --disable-plugin
> >> --with-system-zlib --disable-nls --without-included-gettext
> >> --disable-win32-registry --enable-version-specific-runtime-libs
> >> --with-sysroot=/usr/x86_64-w64-mingw32/sys-root
> >> --enable-languages=c,c++,fortran,objc,obj-c++ --without-x
> >> --enable-hash-synchronization --enable-fully-dynamic-string
> >> --enable-libgomp --enable-linker-build-id
> >> Thread model: win32
> >> gcc version 5.1.0 (GCC)
> >>
> >>
> COMPILER_PATH=/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/:/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/:/usr/lib64/gcc/x86_64-w64-mingw32/:/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/:/usr/lib64/gcc/x86_64-w64-mingw32/:/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/bin/
> >>
> >>
> LIBRARY_PATH=/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/:/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/lib/../lib/:/usr/x86_64-w64-mingw32/sys-root/mingw/lib/../lib/:/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/lib/:/usr/x86_64-w64-mingw32/sys-root/mingw/lib/
> >> COLLECT_GCC_OPTIONS='-v' '-isystem'
> >> '/usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include' '-m64'
> >> '-o' 'a.exe' '-mtune=generic' '-march=x86-64'
> >>  /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/collect2 -plugin
> >> /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/liblto_plugin.so
> >> -plugin-opt=/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/lto-wrapper
> >> -plugin-opt=-fresolution=/tmp/ccd7Jm2a.res
> >> -plugin-opt=-pass-through=-lmingw32 -plugin-opt=-pass-through=-lgcc
> >> -plugin-opt=-pass-through=-lgcc_eh
> >> -plugin-opt=-pass-through=-lmoldname
> >> -plugin-opt=-pass-through=-lmingwex -plugin-opt=-pass-through=-lmsvcrt
> >> -plugin-opt=-pass-through=-ladvapi32
> >> -plugin-opt=-pass-through=-lshell32 -plugin-opt=-pass-through=-luser32
> >> -plugin-opt=-pass-through=-lkernel32
> >> -plugin-opt=-pass-through=-lmingw32 -plugin-opt=-pass-through=-lgcc
> >> -plugin-opt=-pass-through=-lgcc_eh
> >> -plugin-opt=-pass-through=-lmoldname
> >> -plugin-opt=-pass-through=-lmingwex -plugin-opt=-pass-through=-lmsvcrt
> >> --sysroot=/usr/x86_64-w64-mingw32/sys-root --build-id -m i386pep
> >> -Bdynamic -o a.exe
> >> /usr/x86_64-w64-mingw32/sys-root/mingw/lib/../lib/crt2.o
> >> /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/crtbegin.o
> >> -L/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0
> >>
> >>
> -L/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/lib/../lib
> >> -L/usr/x86_64-w64-mingw32/sys-root/mingw/lib/../lib
> >>
> >>
> -L/usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/../../../../x86_64-w64-mingw32/lib
> >> -L/usr/x86_64-w64-mingw32/sys-root/mingw/lib /tmp/nic-e31eb1.o
> >> -liphlpapi -lmingw32 -lgcc -lgcc_eh -lmoldname -lmingwex -lmsvcrt
> >> -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc -lgcc_eh
> >> -lmoldname -lmingwex -lmsvcrt
> >> /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/crtend.o
> >>
> >>
> >> On Fri, Jul 10, 2015 at 9:55 PM, Yaron Keren <yaron.keren at gmail.com>
> >> wrote:
> >> > OK, please help me understand,
> >> >
> >> > Where are the include directories?
> >> > Where are the lib directories?
> >> > Is gcc on the path? where?
> >> > Should clang have a default hardcoed sysroot location on Linux which
> is
> >> > not
> >> > based on clang installed location?
> >> >
> >> >
> >> > 2015-07-10 21:45 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
> >> >>
> >> >> 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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Index: tools/clang/lib/Driver/MinGWToolChain.cpp
===================================================================
--- tools/clang/lib/Driver/MinGWToolChain.cpp	(revision 241540)
+++ tools/clang/lib/Driver/MinGWToolChain.cpp	(working copy)
@@ -25,8 +25,14 @@
     : ToolChain(D, Triple, Args) {
   getProgramPaths().push_back(getDriver().getInstalledDir());
 
+  Arch = getTriple().getArchName();
+  Arch += "-w64-mingw32";
   if (getDriver().SysRoot.size())
     Base = getDriver().SysRoot;
+  else if (llvm::ErrorOr<std::string> ArchGPPName =
+               llvm::sys::findProgramByName(Arch + "-gcc"))
+    Base = llvm::sys::path::parent_path(
+        llvm::sys::path::parent_path(ArchGPPName.get()));
   else if (llvm::ErrorOr<std::string> GPPName =
                llvm::sys::findProgramByName("gcc"))
     Base = llvm::sys::path::parent_path(
@@ -39,8 +45,6 @@
   LibDir += llvm::sys::path::get_separator();
 
   // First look for mingw-w64.
-  Arch = getTriple().getArchName();
-  Arch += "-w64-mingw32";
   std::error_code EC;
   llvm::sys::fs::directory_iterator MingW64Entry(LibDir + Arch, EC);
   if (!EC) {


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