[cfe-dev] Clang on Windows targeting gcc requirements
Hurcan Solter
hsolter at gmail.com
Sat Jul 4 06:41:00 PDT 2015
I've used to build clang on MSYS2 with older version of this patch at
https://github.com/Alexpux/MINGW-packages/blob/master/mingw-w64-clang/clang-mingw-driver.patch
and it served me well. this new patch not so much.Below the relevant dumps ;
$ g++ -E -x c++ - -v < /dev/null
Using built-in specs.
COLLECT_GCC=C:\msys2_64\mingw64\bin\g++.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-4.9.2/configure --prefix=/mingw64
--with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
--host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
--with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
--libexecdir=/mingw64/lib --with-gxx-include-dir=/mingw64/include/c++/4.9.2
--enable-bootstrap --with-arch=x86-64 --with-tune=generic
--enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared
--enable-static --enable-libatomic --enable-threads=posix --enable-graphite
--enable-fully-dynamic-string --enable-libstdcxx-time=yes
--disable-libstdcxx-pch --disable-libstdcxx-debug
--enable-cloog-backend=isl --enable-version-specific-runtime-libs
--disable-cloog-version-check --disable-isl-version-check --enable-lto
--enable-libgomp --disable-multilib --enable-checking=release
--disable-rpath --disable-win32-registry --disable-nls --disable-werror
--disable-symvers --with-libiconv --with-system-zlib --with-gmp=/mingw64
--with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64
--with-cloog=/mingw64 --with-pkgversion='Rev5, Built by MSYS2 project'
--with-bugurl=http://sourceforge.net/projects/msys2 --with-gnu-as
--with-gnu-ld
Thread model: posix
gcc version 4.9.2 (Rev5, Built by MSYS2 project)
COLLECT_GCC_OPTIONS='-E' '-v' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/cc1plus.exe -E
-quiet -v -iprefix
C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/ -D_REENTRANT -
-mtune=generic -march=x86-64
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
ignoring duplicate directory
"C:/msys2_64/mingw64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/4.9.2/include"
ignoring nonexistent directory "C:/msys64/mingw64/include"
ignoring nonexistent directory "/mingw64/include"
ignoring duplicate directory
"C:/msys2_64/mingw64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/4.9.2/include-fixed"
ignoring duplicate directory
"C:/msys2_64/mingw64/lib/gcc/../../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/include"
ignoring nonexistent directory
"C:/msys64/mingw64/x86_64-w64-mingw32/include"
#include "..." search starts here:
#include <...> search starts here:
C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/include
C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../include
C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/include-fixed
C:/msys2_64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/include
C:/msys2_64/mingw64/lib/gcc/../../include/c++/4.9.2
C:/msys2_64/mingw64/lib/gcc/../../include/c++/4.9.2/x86_64-w64-mingw32
C:/msys2_64/mingw64/lib/gcc/../../include/c++/4.9.2/backward
Built with the older MSYS2 patch ;
$ clang++ -E -x c++ - -v < /dev/null
clang version 3.7.0 (http://llvm.org/git/clang.git
e7cee814a12b5dd16c8672543fd93efe741d5208) (http://llvm.org/git/llvm.git
d594ba081506f0f57e9801e3f81467b1766b1e04)
Target: x86_64-pc-windows-gnu
Thread model: posix
"C:\\msys2_64\\mingw64\\bin\\clang++.exe" -cc1 -triple
x86_64-pc-windows-gnu -E -disable-free -disable-llvm-verifier
-main-file-name - -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
-fno-unique-section-names -resource-dir
"C:\\msys2_64\\mingw64\\bin\\..\\lib\\clang\\3.7.0" -internal-isystem
"C:\\msys2_64\\mingw64\\bin/../include/c++/4.9.2" -internal-isystem
"C:\\msys2_64\\mingw64\\bin/../include/c++/4.9.2/x86_64-w64-mingw32"
-internal-isystem
"C:\\msys2_64\\mingw64\\bin/../include/c++/4.9.2/backward"
-internal-isystem
"C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include/c++"
-internal-isystem
"C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
-internal-isystem
"C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include/c++/backward"
-internal-isystem
"C:\\msys2_64\\mingw64\\bin\\..\\lib\\clang\\3.7.0\\include"
-internal-isystem
"C:\\msys2_64\\mingw64\\bin/../x86_64-w64-mingw32/include"
-internal-isystem "C:\\msys2_64\\mingw64\\bin/../include"
-fdeprecated-macro -fdebug-compilation-dir "E:\\llvm\\buildmingw64\\bin"
-ferror-limit 19 -fmessage-length 0 -mstackrealign -fno-use-cxa-atexit
-fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option
-o - -x c++ -
clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
x86_64-pc-windows-gnu
ignoring nonexistent directory
"C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include/c++"
ignoring nonexistent directory
"C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory
"C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include/c++/backward"
ignoring duplicate directory
"C:\msys2_64\mingw64\bin\..\lib\clang\3.7.0\include"
#include "..." search starts here:
#include <...> search starts here:
C:\msys2_64\mingw64\bin/../include/c++/4.9.2
C:\msys2_64\mingw64\bin/../include/c++/4.9.2/x86_64-w64-mingw32
C:\msys2_64\mingw64\bin/../include/c++/4.9.2/backward
C:\msys2_64\mingw64\bin\..\lib\clang\3.7.0\include
C:\msys2_64\mingw64\bin/../x86_64-w64-mingw32/include
C:\msys2_64\mingw64\bin/../include
End of search list.
New Patch
$ ./clang++ -E -x c++ - -v < /dev/null
clang version 3.7.0 (http://llvm.org/git/clang.git
0af047c817acbc67e61aa82f0b43a54d61b753f8) (http://llvm.org/git/llvm.git
9a9ee6f550c0789053c260203aea8430a34554fe)
Target: x86_64-pc-windows-gnu
Thread model: posix
"E:\\llvm\\buildmingw64\\bin\\clang++.exe" -cc1 -triple
x86_64-pc-windows-gnu -E -disable-free -disable-llvm-verifier
-main-file-name - -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 "E:\\llvm\\buildmingw64\\bin\\..\\lib\\clang\\3.7.0"
-internal-isystem "C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include\\c++"
-internal-isystem
"C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include\\c++\\x86_64-w64-mingw32\\"
-internal-isystem
"C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include\\c++\\backward"
-internal-isystem
"C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include\\c++"
-internal-isystem
"C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include\\c++\\x86_64-w64-mingw32\\"
-internal-isystem
"C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include\\c++\\backward"
-internal-isystem
"E:\\llvm\\buildmingw64\\bin\\..\\lib\\clang\\3.7.0\\include"
-internal-isystem
"C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include"
-internal-isystem
"C:\\msys2_64\\mingw64\\lib\\gcc\\x86_64-w64-mingw32\\4.9.2\\include-fixed"
-internal-isystem "C:\\msys2_64\\mingw64\\x86_64-w64-mingw32\\include"
-internal-isystem "C:\\msys2_64\\mingw64\\include" -fdeprecated-macro
-fdebug-compilation-dir "E:\\llvm\\buildmingw64\\bin" -ferror-limit 19
-fmessage-length 0 -mstackrealign -fno-use-cxa-atexit -fobjc-runtime=gcc
-fcxx-exceptions -fexceptions -fdiagnostics-show-option -o - -x c++ -
clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
x86_64-pc-windows-gnu
ignoring nonexistent directory
"C:\msys2_64\mingw64\x86_64-w64-mingw32\include\c++"
ignoring nonexistent directory
"C:\msys2_64\mingw64\x86_64-w64-mingw32\include\c++\x86_64-w64-mingw32\"
ignoring nonexistent directory
"C:\msys2_64\mingw64\x86_64-w64-mingw32\include\c++\backward"
ignoring nonexistent directory
"C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++"
ignoring nonexistent directory
"C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\x86_64-w64-mingw32\"
ignoring nonexistent directory
"C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\backward"
#include "..." search starts here:
#include <...> search starts here:
E:\llvm\buildmingw64\bin\..\lib\clang\3.7.0\include
C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include
C:\msys2_64\mingw64\lib\gcc\x86_64-w64-mingw32\4.9.2\include-fixed
C:\msys2_64\mingw64\x86_64-w64-mingw32\include
C:\msys2_64\mingw64\include
End of search list.
I assume this patch only meant to fix the official mingw-builds?
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