fixup! msvc: include sigset_t definition

In the MSVC-specific header, it makes no sense to guard anything behind
the _MSC_VER tell-tale that indicates whether we are compiling with
MSVC...

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

compat/msvc.h

@@ -28,15 +28,12 @@ static __inline int strcasecmp (const char *s1, const char *s2)
 
 #undef ERROR
 
-#ifdef _MSC_VER
 #define ftello _ftelli64
 
 typedef int sigset_t;
 /* open for reading, writing, or both (not in fcntl.h) */
 #define O_ACCMODE     (_O_RDONLY | _O_WRONLY | _O_RDWR)
 
-#endif
-
 #include "compat/mingw.h"
 
 #endif