Compile error OSX 10.10.5

[btracey]

Downloading from develop

git clone https://github.com/xianyi/OpenBLAS

Then using make leads to this error

symm.c:153:7: warning: unused variable 'mode' [-Wunused-variable]
  int mode  =  BLAS_SINGLE  | BLAS_COMPLEX;
      ^
zimatcopy.c:171:9: error: void function 'cimatcopy_' should not return a value
      [-Wreturn-type]
        return(0); 
        ^     ~~~
1 error generated.
make[1]: *** [cimatco

Clang:

brendan:~/software/OpenBLAS$ clang --version
Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin14.5.0
Thread model: posix

Trying to compile with gcc (make CC=gcc) eventually gives a lot of errors like

../kernel/x86_64/ssymv_L_microk_sandy-2.c:91:no such instruction: `vmovss %xmm2 ,8(%rax)'
../kernel/x86_64/ssymv_L_microk_sandy-2.c:92:no such instruction: `vmovss %xmm3 ,12(%rax)'
../kernel/x86_64/ssymv_L_microk_sandy-2.c:93:no such instruction: `vzeroupper'
make[1]: *** [ssymv_L.o] Error 1

[martin-frbg]

clang build appears to be assuming -Werror if it balks on void functions erroneously returning a value, while gcc appears to use an assembler that does not support AVX instructions (which gcc/binutils versions ?)

[btracey]

gcc --version
gcc (MacPorts gcc48 4.8.4_0) 4.8.4
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[martin-frbg]

#493 seems to suggest you would need binutils >= 2.25 (and the guy building with clang-6.1/gcc-4.9.2
on 10.10.3 in #593 apparently did not hit either of your problems)
That said, the extraneous "return 0" in zimatcopy.c could do with a patch...

[xianyi]

OK, fixed the bug. :)

[martin-frbg]

Heh. I see xianyi just fixed it.

[btracey]

Works now. Thanks!