On 06/06/2013 10:37 AM, Christopher Sean Morrison wrote:
>> $ cat symbol_main.c
>> #include <stdio.h> /* declares tested symbol */
>> extern int cmakeRequireSymbol(int, ...);
>> int main(int argc, const char* argv[]) { return cmakeRequireSymbol(argc,
>> &printf); }
>>
>> $ cat symbol_impl.c
>> int cmakeRequireSymbol(int x, ...) { return x; }
>
> This sounds looks like the best option to me, better than
> casting through an integer.
>
> Want me to work up a patch or is someone already on it?
It will be simpler if we first extend the try_compile command
to support multiple source files in the "source file" signature
so we do not need to construct a full source tree and write the
CMakeLists.txt by hand for the check.
Recently in master I merged some refactoring of the try_compile
command argument processing so it should now be straightforward
to add more options. Currently the signatures are
try_compile(RESULT_VAR <bindir> <srcdir> <projectName> ...) #dir
try_compile(RESULT_VAR <bindir> <srcfile> ...) #file
Perhaps we should add
try_compile(RESULT_VAR <bindir> SOURCES <src>... ...)
Would you be able to try all that?
Thanks,
-Brad
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