On Saturday 06 November 2010 23:08:29 Eric Noulard wrote:
> 2010/11/7 luxInteg <lux-in...@btconnect.com>:
> > I tried the following:-
> >
> > ADD_LIBRARY(LearnCMAKE-shared SHARED file1.c file2.c )
> > ADD_LIBRARY(LearnCMAKE-static STATIC file1.c file2.c )
> > SET(var "")
> > FOREACH(var DINT DLONG)
> > SET_SOURCE_FILES_PROPERTIES( file1.c file2.c
> > PROPERTIES COMPILE_DEFINITIONS ${var})
> > ENDFOREACH(var)
> > SET_TARGET_PROPERTIES(LearnCMAKE-shared LearnCMAKE-static
> > PROPERTIES OUTPUT_NAME LearnCMAKE)
> >
> > but my compile logs only show lines with "-DDLONG -O3 "
> > and one with "-DDINT -O3"
> >
> > and the generated libs are about half the size they should be.
> >
> > advice would be appreciated
>
> I think you cannot use **the same** file properties on a source file
> and expect CMake will compile the file twice for the same target.
> If you want to compile the same source file twice with different compile
> flags **FOR THE SAME TARGET** you have to copy this file
>
> configure_file(file1.c file1-long.c @COPYONLY)
> SET_SOURCE_FILES_PROPERTIES(file1.c PROPERTIES COMPILE_DEFINITIONS "-DINT")
> SET_SOURCE_FILES_PROPERTIES(file1-long.c PROPERTIES
> COMPILE_DEFINITIONS "-DLONG")
>
> ** same for file 2 **
> ADD_LIBRARY(LearnCMAKE-static STATIC file1.c file1-long.c file2.c
> file2-long.c) ADD_LIBRARY(LearnCMAKE-shared SHARED file1.c file1-long.c
> file2.c file2-long.c)
>
> note however that you CAN compile the **same file** twice with differents
> flags if it is for **DIFFERENT** targets. You can use
> "set_target_properties". i.e.
> ADD_LIBRARY(LearnCMAKE-int file1.c file2.c)
> ADD_LIBRARY(LearnCMAKE-long file1.c file2.c)
>
> set_target_properties(LearnCMAKE-int PROPERTIES COMPILE_FLAGS "-DINT")
> set_target_properties(LearnCMAKE-long PROPERTIES COMPILE_FLAGS "-DLONG")
many thanks. It worked. And I extended it to a setup with ~dozen files
succesfully.
And thanks to everyone who forwarded suggestions.
>
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