z13: improved zgemv_(t|n)_4,zscal,zaxpy

Also #define SPARC in config.h when autodetecting

small corrections

Initialize unitialized values for repeated calls

Fixes #1442

small fix inside ifdef z13mvc . (z13mvc code is not used in production)

CMake: Remove unused wall option when FC=flang

Make USE_TRMM depend on TARGET_CORE not TARGET

Fixes #1432 (and possibly other DTRMM-related failures on Haswell and related architectures when built with cmake)

When forcing USE_THREAD to zero, override USE_OPENMP as well

This avoids an error exit a few lines down as USE_THREAD=0 conflicts with USE_OPENMP=1

CMake: Use the correct library name on windows

(Z13 ) Blas1 mikrokernels can be inlined by gcc. Refactoring,fixes,tunings

names). Some fixes and tunings

FindBLAS and FindLAPACK don't correctly detect the OpenBLAS library
name on windows. I am unsure why this was originally set this way, but
it has caused me some trouble.

(Z systems Z13) small fixes, some (i(dz)amin,i(dz)amax,(dz)dot,(dz)asum) mikrokernels…

Address warnings #1357

Make: escape paths to pkg-config file

Add double quotes around the path to the pkg-config file so that a path
containing whitespace does not break the build.

Tag %1 and %2 as both input and output operands

fix from #1292 extended to the other gemv microkernels

Appveyor: speed up fortran builds

Tag %1 and %2 as both input and output

Address few more warnings

The inline assembly modifies its input operands, so mark them as output to avoid surprises with optimization. Fixes #1292

Fix LAPACKE build problems with both cmake and make

The macOS ar aborts when it gets called with no input, see #1398

These were inadvertently dropped from the list in my PR #1095