CMAKE_<LANG>_COMPILER_ID

Compiler identification string.

A short string unique to the compiler vendor. Possible values include:

Value	Name
Absoft	Absoft Fortran
ADSP	Analog VisualDSP++
AppleClang	Apple Clang
ARMCC	ARM Compiler
ARMClang	ARM Compiler based on Clang
Bruce	Bruce C Compiler
CCur	Concurrent Fortran
Clang	LLVM Clang
Cray	Cray Compiler
Embarcadero, Borland	Embarcadero
Flang	Classic Flang Fortran Compiler
LLVMFlang	LLVM Flang Fortran Compiler
Fujitsu	Fujitsu HPC compiler (Trad mode)
FujitsuClang	Fujitsu HPC compiler (Clang mode)
G95	G95 Fortran
GNU	GNU Compiler Collection
GHS	Green Hills Software
HP	Hewlett-Packard Compiler
IAR	IAR Systems
Intel	Intel Classic Compiler
IntelLLVM	Intel LLVM-Based Compiler
LCC	MCST Elbrus C/C++/Fortran Compiler
MSVC	Microsoft Visual Studio
NVHPC	NVIDIA HPC Compiler
NVIDIA	NVIDIA CUDA Compiler
OpenWatcom	Open Watcom
PGI	The Portland Group
PathScale	PathScale
SDCC	Small Device C Compiler
SunPro	Oracle Solaris Studio
Tasking	Tasking Compiler Toolsets
TI	Texas Instruments
TinyCC	Tiny C Compiler
XL, VisualAge, zOS	IBM XL
XLClang	IBM Clang-based XL
IBMClang	IBM LLVM-based Compiler

This variable is not guaranteed to be defined for all compilers or languages.