I've been trying to get autoconf to generate a test for GetLongPathNameA
under MSYS. The obvious however does not work:
Running the test generated by AC_CHECK_FUNCS(... GetLongPathNameA),
through the preprocessor produces the code:
char GetLongPathNameA ();
char (*f) () = GetLongPathNameA;
int main() {
return f != GetLongPathNameA;
}
which does not link.
What I want is an autoconf test equivalent to:
#include <windows.h>
int main() {
char path[10];
GetLongPathNameA("", path, 0);
return 0;
}
which preprocesses to
typedef unsigned long DWORD;
typedef char CHAR;
typedef const CHAR *LPCCH,*PCSTR,*LPCSTR;
typedef CHAR *PCHAR,*LPCH,*PCH,*NPSTR,*LPSTR,*PSTR;
__attribute__((dllimport)) DWORD __attribute__((__stdcall__))
GetLongPathNameA(LPCSTR,LPSTR,DWORD);
int main() {
char path[10];
GetLongPathNameA("", path, 0);
return 0;
}
I look at the macro archive here
http://autoconf-archive.cryp.to/macros-by-category.html
but saw nothing obvious although there's an ax_c___attribute__ which
suggests that others have been solving a related problem at least.
Any suggestions?
Angus
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