OpenBLAS could not be compiled on SkyLake

[woodrush]

According to OpenMathLib/OpenBLAS#632, and as of 10/1/2015, the build system for OpenBLAS cannot recognize SkyLake CPUs, and for SkyLake the option TARGET=HASWELL must be specified for makeing OpenBLAS. I am using Ubuntu 15.04 and an Intel Core i7 6600 CPU and failed with the error

Cloning into 'OpenBLAS'...
remote: Counting objects: 17300, done.
remote: Compressing objects: 100% (8/8), done.
remote: Total 17300 (delta 2), reused 0 (delta 0), pack-reused 17292
Receiving objects: 100% (17300/17300), 14.80 MiB | 3.03 MiB/s, done.
Resolving deltas: 100% (11998/11998), done.
Checking connectivity... done.
getarch_2nd.c: In function ‘main’:
getarch_2nd.c:12:35: error: ‘SGEMM_DEFAULT_UNROLL_M’ undeclared (first use in this function)
printf("SGEMM_UNROLL_M=%d\n", SGEMM_DEFAULT_UNROLL_M);
^
getarch_2nd.c:12:35: note: each undeclared identifier is reported only once for each function it appears in
getarch_2nd.c:13:35: error: ‘SGEMM_DEFAULT_UNROLL_N’ undeclared (first use in this function)
printf("SGEMM_UNROLL_N=%d\n", SGEMM_DEFAULT_UNROLL_N);
^
getarch_2nd.c:14:35: error: ‘DGEMM_DEFAULT_UNROLL_M’ undeclared (first use in this function)
printf("DGEMM_UNROLL_M=%d\n", DGEMM_DEFAULT_UNROLL_M);
^
getarch_2nd.c:15:35: error: ‘DGEMM_DEFAULT_UNROLL_N’ undeclared (first use in this function)
printf("DGEMM_UNROLL_N=%d\n", DGEMM_DEFAULT_UNROLL_N);
^
getarch_2nd.c:19:35: error: ‘CGEMM_DEFAULT_UNROLL_M’ undeclared (first use in this function)
printf("CGEMM_UNROLL_M=%d\n", CGEMM_DEFAULT_UNROLL_M);
^
getarch_2nd.c:20:35: error: ‘CGEMM_DEFAULT_UNROLL_N’ undeclared (first use in this function)
printf("CGEMM_UNROLL_N=%d\n", CGEMM_DEFAULT_UNROLL_N);
^
getarch_2nd.c:21:35: error: ‘ZGEMM_DEFAULT_UNROLL_M’ undeclared (first use in this function)
printf("ZGEMM_UNROLL_M=%d\n", ZGEMM_DEFAULT_UNROLL_M);
^
getarch_2nd.c:22:35: error: ‘ZGEMM_DEFAULT_UNROLL_N’ undeclared (first use in this function)
printf("ZGEMM_UNROLL_N=%d\n", ZGEMM_DEFAULT_UNROLL_N);
^
getarch_2nd.c:67:50: error: ‘SGEMM_DEFAULT_Q’ undeclared (first use in this function)
printf("#define SLOCAL_BUFFER_SIZE\t%ld\n", (SGEMM_DEFAULT_Q * SGEMM_DEFAULT_UNROLL_N * 4 * 1 * sizeof(float)));
^
getarch_2nd.c:68:50: error: ‘DGEMM_DEFAULT_Q’ undeclared (first use in this function)
printf("#define DLOCAL_BUFFER_SIZE\t%ld\n", (DGEMM_DEFAULT_Q * DGEMM_DEFAULT_UNROLL_N * 2 * 1 * sizeof(double)));
^
getarch_2nd.c:69:50: error: ‘CGEMM_DEFAULT_Q’ undeclared (first use in this function)
printf("#define CLOCAL_BUFFER_SIZE\t%ld\n", (CGEMM_DEFAULT_Q * CGEMM_DEFAULT_UNROLL_N * 4 * 2 * sizeof(float)));
^
getarch_2nd.c:70:50: error: ‘ZGEMM_DEFAULT_Q’ undeclared (first use in this function)
printf("#define ZLOCAL_BUFFER_SIZE\t%ld\n", (ZGEMM_DEFAULT_Q * ZGEMM_DEFAULT_UNROLL_N * 2 * 2 * sizeof(double)));
^
make: *** [getarch_2nd] Error 1
Makefile:131: *** OpenBLAS: Detecting CPU failed. Please set TARGET explicitly, e.g. make TARGET=your_cpu_target. Please read README for the detail.. 中止.
Error. OpenBLAS could not be compiled    

I actually solved this problem by adding the TARGET=HASWELL option, therefore editing install-deps as

14,16c14,16
<         make NO_AFFINITY=1 USE_OPENMP=0 USE_THREAD=0
<     else
<         make NO_AFFINITY=1 USE_OPENMP=1

---
>         make NO_AFFINITY=1 USE_OPENMP=0 USE_THREAD=0 TARGET=HASWELL
>     else 
>         make NO_AFFINITY=1 USE_OPENMP=1 TARGET=HASWELL

Which let OpenBLAS compile successfully.

I believe this is more of an OpenBLAS problem, but the original issue on OpenBLAS is closed, but still this problem seems still not to be solved now, so please let me post this issue here. A quick fix for ezinstall may be to obtain the architecture name during the build (I believe OpenBLAS does it in getarch.c) but I also believe that should ultimately be dealt by the OpenBLAS build system.