Remove spurious casts from PPC parameters and fix compilation for older targets

Optimized sgemv_t for small N based on AVX512

POWER10: Fixes for sbgemm kernel

Not all versions of install support '-p' flag and it isn't worth failing
the build in the installed files' timestamps get updated.

While testing bfloat16 sbgemm kernel, there are some failures
for odd value inputs due to array access beyond the boundary.

riscv64 fixes

The implementation in `riscv64/dot.c` fails the `test_dsdot` test, and
the generic kernel seems to have better precision. Tested on SiFive
FU740 (HiFive Unmatched) and QEMU.

Also see #1469.

Same as #1990.

revert "try to work around gcc update problems" in Homebrew workflow

...as homebrew has dropped at least gcc8 now

Fix typo

Add fast path for small xSYR with INCX==1

Fix spurious error exit test failures in the ?chktsqr tests (LAPACK564)

GEMM: skylake: improve the performance when m is small

Handle inadvertent use of DYNAMIC_ARCH=0

optimize on sgemv_n for small n

Correct function name in error message from SLASQ2 (LAPACK PR555)

Add -lm for FreeBSD on ARM/ARM64

Update Makefile.arm64

Added -march and -mtune flags for EMAG processors when GCC 9 or later

filter out -mavx flag on Sandybridge zgemm/ztrmm kernels

Add autodetection for Intel Ice Lake SP

Reduce stack size requirements in the LAPACK LIN tests (LAPACK PR 553)

Support compilation with pre-C99 versions of MSVC