[cmake-developers] How to deal with assembler files
brad.king at kitware.com
Tue Aug 17 17:24:54 EDT 2010
On 08/17/2010 04:39 PM, Alexander Neundorf wrote:
> Still, there is the preprocessing bug.
I think some Fortran compilers need help with this too but we ignore
them right now. I prefer a solution that may work for both, but just
for ASM for now.
In general the languages should be independent. Both parts of your
proposal make ASM depend on C in one way or another. It would be
best to add direct support for preprocessing sources. We do not need
separate rules with dependencies for this; the preprocessing step
can be done at the same time as the compile step.
I envision something like this:
"<CMAKE_ASM_PREPROCESSOR> <DEFINES> <INCLUDES> -o <OBJECT>.s -E <SOURCE>"
"<CMAKE_ASM_COMPILER> <FLAGS> -o <OBJECT> <OBJECT>.s"
(The <INCLUDES> token would need to be implemented for -I options.)
This first preprocesses to a source file right next to the object
file and then assembles it to create the object. The preprocessor
can be the C compiler if C is enabled and /usr/bin/cpp otherwise
(but works either way).
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