Fix compilation with PGI by replacing verbatim _real_, _imag_ extensions and updating macro definitions for modern, C99-capable versions of the PGI compiler

Update c_check.cmake to label ppc64 as power ARCH

Fix misspelling of zlasyf_aa from previous commit

Add `csymv` and `zsymv` into `@lapackobjs2` for exporting

Fix core detection for Kaby Lake without AVX (G4560)

Should fix #1109)

Conventional usage of the register save area.

Optimized Implementations for ThunderX2T99

ztrmm(zgemm) complex double precision kernel for ibm z13

remove input from clobbered list

TESTING/EIG: fix spurious EXTERNAL references to nonexistent functions

Remove unused (and nonexistent) functions ZHETRD_SY2SB and ZHETRD_SB2ST from comment and EXTERNAL declaration

Remove unused (and nonexistent) ZHETRD_SY2SB and ZHETRD_SB2ST

ZHBTRD_HB2ST  should be ZHETRD_HB2ST

LAPACK: fix missing comma on continued lines

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.

LAPACKE: fix wrong matrix size in ?ormbr

Changes made upstream in Reference LAPACK in
https://github.com/Reference-LAPACK/lapack/pull/128

Power8 inline assembly fixes

LAPACKE: fix wrong number of columns in ?ormlq

Correct Apollo Lake CPUID identification in dynamic_arch builds

Copied from lapack https://github.com/Reference-LAPACK/lapack/pull/127  by vladimir-ch (with earlier changes from echeresh's  
PR 115 "lapacke_*ormlq_work: move declarations under if" there as they touched some of the same files)

CPUID mappings for Core i5-7600K (Kaby Lake)