These changes are in preparation of compiler generated dependencies support
for Makefiles generators
* compiler output and dependency target can be different for Makefiles generators
* resolve inconsistency naming for dependency file place-holder
The GNU `as --help` shows `--MD <file>` as an option to generate depfiles
as needed by Ninja. There is no `-MT <target>` flag but fortunately the
generated files automatically account for the `-o <obj>` flag.
Issue: #20426
CMAKE_ASM_COMPILE_OBJECT is now so that it fits for GNU, Intel, HP and Sun
ASM_ATT had to be adjusted. Also adjusted the default
CMAKE_ASM_LINK_EXECUTABLE
Alex
This commit changes the way how the assembler support works in cmake.
The language "ASM" now always uses the C/Cxx compiler instead
of the assembler directly. This fixes#8392, assembler files are
not preprocessed.
If one wants to use the assembler directly, the specific
assembler "dialect" has to be enabled. I.e. to get as/gas,
you have to use now ASM-ATT, the same way for ASM_MASM and ASM_NASM.
Implemented this now for gcc.
SunStudio, IBM, HP and Intel still todo.
Alex
