[cfe-dev] Building llvmgcc using MinGW64

[陈晓宇]

Thanks for your reply. The problem is we were not using pure
llvmgcc(otherwise we should be able to use gcc4.6+dragonegg, I think), and a
lot changes were made to llvmgcc for our own purpose. If we switch our
compiler to clang, there will be a lot of manual patch work... Maybe the
MinGW patch for gcc4.4 can be useful for me.

2011/9/26 Ruben Van Boxem <vanboxem.ruben at gmail.com>

> 2011/9/26 陈晓宇 <xychen0921 at gmail.com>
>
>> I was building llvmgcc using MinGW64 and met following error. Any idea how
>> to get rid of this problem?
>>
>> /home/xchen/MinGWSrcLLVM/llvmgcc/build/./gcc/xgcc
>> -B/home/xchen/MinGWSrcLLVM/llv
>> mgcc/build/./gcc/
>> -L/home/xchen/MinGWSrcLLVM/llvmgcc/build/x86_64-w64-mingw32/wi
>> nsup/mingw
>> -L/home/xchen/MinGWSrcLLVM/llvmgcc/build/x86_64-w64-mingw32/winsup/w3
>> 2api/lib -isystem /home/xchen/MinGWSrcLLVM/llvmgcc/winsup/mingw/include
>> -isystem
>>  /home/xchen/MinGWSrcLLVM/llvmgcc/winsup/w32api/include
>> -B/home/xchen/MinGWSrcLL
>> VM/myprefix/x86_64-w64-mingw32/bin/
>> -B/home/xchen/MinGWSrcLLVM/myprefix/x86_64-w
>> 64-mingw32/lib/ -isystem
>> /home/xchen/MinGWSrcLLVM/myprefix/x86_64-w64-mingw32/in
>> clude -isystem
>> /home/xchen/MinGWSrcLLVM/myprefix/x86_64-w64-mingw32/sys-include
>> -O2 -O2 -g -O2  -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -DNATIVE_CROSS   -W
>> -Wall -
>> Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
>> -Wold-style-definition
>> -isystem ./include  -I. -I. -I../../gcc -I../../gcc/.
>> -I../../gcc/../include -I.
>> ./../gcc/../libcpp/include  -I../../gcc/../libdecnumber -I../libdecnumber
>> -I/hom
>> e/xchen/llvm2.7-obj/include -I/home/xchen/llvm2.7/include  -g0
>> -finhibit-size-di
>> rective -fno-inline-functions -fno-exceptions -fno-zero-initialized-in-bss
>> -fno-
>> toplevel-reorder -Dinhibit_libc -c -o crtbegin.o \
>>         ../../gcc/config/i386/cygming-crtbegin.c
>> ../../gcc/config/i386/cygming-crtbegin.c:1: error: -malign-double makes no
>> sense
>>  in the 64bit mode
>> make[1]: *** [crtbegin.o] Error 1
>> make[1]: Leaving directory `/home/xchen/MinGWSrcLLVM/llvmgcc/build/gcc'
>> make: *** [all-gcc] Error 2
>>
>>
>> ../llvmgcc/configure --prefix=/home/xchen/llvmgcc-install
>> --enable-llvm=/home/xchen/llvm2.7-obj --enable-languages=c,c++
>> --disable-threads --program-prefix=llvm-  --disable-bootstrap
>> --enable-checking=release --disable-shared --disable-nls --disable-c-mbchar
>> --host=x86_64-w64-mingw32 --build=x86_64-w64-mingw32 --disable-multilib
>>
>
> If I'm not mistaken, llvm-gcc is based on GCC 4.2. MinGW-w64 only started
> existing around GCC 4.3, with a working implementation at GCC 4.4 (with lots
> of local patches required) and a vanilla (unpatched) implementation at GCC
> 4.5+. I think you're currently out of luck here. Why not try Clang itself
> (if you don't need fortran or any other non-C family language of course)?
>
> Ruben
>
>
>>
>> Thanks & Regards
>>
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>>
>>
>
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