[mpich-discuss] Error in compiling MPICH on Mac desktop

[Eric A. Borisch]

You will need to add '-Wa,-q' for CFLAGS and CXXFLAGS for gcc* on
Yosemite and above. This will use the clang assembler. (See man as)

<plug>The MacPorts mpich package does this automatically when needed.</plug>

 - Eric

On Fri, Oct 30, 2015 at 10:13 AM, Rob Latham <robl at mcs.anl.gov> wrote:
>
>
> On 10/28/2015 12:46 PM, Ghosh, Debojyoti wrote:
>>
>> Hi,
>>
>> I am getting a compilation error while trying to compile MPICH on my Mac
>> desktop. I installed the latest GNU compilers using Homebrew.
>>
>>  > gcc -v
>> Using built-in specs.
>> COLLECT_GCC=gcc
>>
>> COLLECT_LTO_WRAPPER=/usr/local/Cellar/gcc/5.2.0/libexec/gcc/x86_64-apple-darwin14.5.0/5.2.0/lto-wrapper
>> Target: x86_64-apple-darwin14.5.0
>> Configured with: ../configure --build=x86_64-apple-darwin14.5.0
>> --prefix=/usr/local/Cellar/gcc/5.2.0
>> --libdir=/usr/local/Cellar/gcc/5.2.0/lib/gcc/5
>> --enable-languages=c,c++,objc,obj-c++,fortran --program-suffix=-5
>> --with-gmp=/usr/local/opt/gmp --with-mpfr=/usr/local/opt/mpfr
>> --with-mpc=/usr/local/opt/libmpc --with-isl=/usr/local/opt/isl
>> --with-system-zlib --enable-libstdcxx-time=yes --enable-stage1-checking
>> --enable-checking=release --enable-lto
>> --with-build-config=bootstrap-debug --disable-werror
>> --with-pkgversion='Homebrew gcc 5.2.0'
>> --with-bugurl=https://github.com/Homebrew/homebrew/issues
>> --enable-plugin --disable-nls --enable-multilib
>> Thread model: posix
>> gcc version 5.2.0 (Homebrew gcc 5.2.0)
>
>
> We test with gcc-5.2 on our mac build bots, so it's definitely possible.
>
>> I am getting the following error while compiling MPICH:
>>    CC       src/mpltrmem.lo
>> /var/folders/qf/q3tp7kgn0gz6qj5_c2nr4qqm001qq3/T//ccyirdXM.s:491:suffix
>> or operands invalid for `movq'
>> /var/folders/qf/q3tp7kgn0gz6qj5_c2nr4qqm001qq3/T//ccyirdXM.s:495:suffix
>> or operands invalid for `movq'
>> make[2]: *** [src/mpltrmem.lo] Error 1
>> make[1]: *** [all-recursive] Error 1
>> make: *** [all] Error 2
>
>
> When the assembler is suspicous ('movq') then it sure seems like there's a
> toolchain mismatch.
>
> Does this bug report from libressl sound like your environment?
> https://github.com/libressl-portable/portable/issues/121
>
> ==rob
>
>
> --
> Rob Latham
> Mathematics and Computer Science Division
> Argonne National Lab, IL USA
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