Different strategy regarding whether to declare getrusage() and
getpagesize() -- #ifdef doesn't work, Linux has conflicting decls in
its headers. Choice: only declare the return type, not the argument
prototype, and not on Linux.
diff --git a/Modules/resource.c b/Modules/resource.c
index cc81337..428c32c 100644
--- a/Modules/resource.c
+++ b/Modules/resource.c
@@ -36,17 +36,15 @@
#include <string.h>
#include <errno.h>
-/* don't know why this isn't defined in a header file */
-#ifndef getrusage
-int getrusage(int who, struct rusage *rusage);
-#endif
-
-#ifndef getpagesize
-#ifdef linux
-extern size_t getpagesize(void);
-#else
-int getpagesize(void);
-#endif
+/* On some systems, these aren't in any header file.
+ On others they are, with inconsistent prototypes.
+ We declare the (default) return type, to shut up gcc -Wall;
+ but we can't declare the prototype, to avoid errors
+ when the header files declare it different.
+ Worse, on some Linuxes, getpagesize() returns a size_t... */
+#ifndef linux
+int getrusage();
+int getpagesize();
#endif
#define doubletime(TV) ((double)(TV).tv_sec + (TV).tv_usec * 0.000001)