[cmake-developers] [CMake 0011565]: CHECK_{FUNCTION, LIBRARY}_EXISTS() macros need a way to specify function declaration

Mantis Bug Tracker mantis at public.kitware.com
Thu Dec 2 16:35:32 EST 2010


The following issue has been SUBMITTED. 
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http://public.kitware.com/Bug/view.php?id=11565 
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Reported By:                Daniel R. Gomez
Assigned To:                
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Project:                    CMake
Issue ID:                   11565
Category:                   CMake
Reproducibility:            always
Severity:                   feature
Priority:                   normal
Status:                     new
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Date Submitted:             2010-12-02 16:35 EST
Last Modified:              2010-12-02 16:35 EST
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Summary:                    CHECK_{FUNCTION,LIBRARY}_EXISTS() macros need a way
to specify function declaration
Description: 
I want to check for the existence of a library+function. On Windows, however,
the function must be declared using the WINAPI keyword (which is available after
#including<windows.h>) in order for the linker to find it. This keyword changes
the symbol that the linker looks for in a manner that cannot otherwise be
represented in valid C code, so there is no alternative to its use.

There is currently no way to shoehorn this keyword into the C file used by the
CHECK_{FUNCTION,LIBRARY}_EXISTS() macros, or otherwise to modify the trivial
"char foo();" function declaration therein; the best you can do is create a
custom C file and invoke TRY_COMPILE() yourself.
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Issue History 
Date Modified    Username       Field                    Change               
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2010-12-02 16:35 Daniel R. GomezNew Issue                                    
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