Re: Compiling Octave with OpenBLAS

[Dmitri A. Sergatskov]

I can confirm the problem. 
 checking for sgemm_ in -L/d2/home/dima/src/xianyi-OpenBLAS-e552452 -lopenblas... yes
checking whether LSAME is called correctly from Fortran... no
checking whether ISAMAX is called correctly from Fortran... no
checking whether SDOT is called correctly from Fortran... no
checking whether DDOT is called correctly from Fortran... no
checking whether CDOTU is called correctly from Fortran... no
checking whether ZDOTU is called correctly from Fortran... no
checking whether the integer size is correct... no
checking for sgemm_ in -L/d2/home/dima/src/xianyi-OpenBLAS-e552452 -lopenblas... yes
checking whether LSAME is called correctly from Fortran... no
checking whether ISAMAX is called correctly from Fortran... no
checking whether SDOT is called correctly from Fortran... no
checking whether DDOT is called correctly from Fortran... no
checking whether CDOTU is called correctly from Fortran... no
checking whether ZDOTU is called correctly from Fortran... no
checking whether the integer size is correct... no
configure: error: A BLAS library was detected but found incompatible with your Fortran 77 compiler settings.

I moved out all the static libraries from this directory:

 ls lib*
lib.grd  libopenblas_nehalemp-r0.2.3.so  libopenblas.so  libopenblas.so.0
file libopenblas*
libopenblas_nehalemp-r0.2.3.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=0x807f5a3720063e173dfb087a561ef7147c0e2fec, not stripped
libopenblas.so:                 symbolic link to `libopenblas_nehalemp-r0.2.3.so'
libopenblas.so.0:               symbolic link to `libopenblas_nehalemp-r0.2.3.so

Yet, LD_PRELOAD trick with this library seems to work.
(I just checked that a*inv(a) is fast and returns identity matrix)

Dmitri.
--