Author: Holger Jaekel <holger.jaekel@gmx.de>
Summary: under musl, off_t is always 64-bit
----

--- a/fitsio.h
+++ b/fitsio.h
@@ -86,16 +86,7 @@
 
 /*  Debian systems require: "(defined(linux) && defined(__off_t_defined))" */
 /*  the mingw-w64 compiler requires: "(defined(__MINGW32__) && defined(_OFF_T_DEFINED))" */
-#if defined(_OFF_T) \
-    || (defined(linux) && defined(__off_t_defined)) \
-    || (defined(__MINGW32__) && defined(_OFF_T_DEFINED)) \
-    || defined(_MIPS_SZLONG) || defined(__APPLE__) || defined(_AIX)
-#    define OFF_T off_t
-#elif defined(__BORLANDC__) || (defined(_MSC_VER) && (_MSC_VER>= 1400))
-#    define OFF_T long long
-#else
-#    define OFF_T long
-#endif
+#define OFF_T off_t
 
 /* this block determines if the the string function name is 
     strtol or strtoll, and whether to use %ld or %lld in printf statements */