Follow-up Comment #4, bug #63185 (project make):
This piece of code
++++
+#ifdef HAVE_SYS_LOADAVG_H
+# include <sys/loadavg.h>
+#endif
----
indeed helps on sun, because sun has sys/loadavg.h.
However, aix does not have sys/loadavg.h (i didn't find a declaration of
getloadavg in any header on aix) and the change above does not help on aix.
The problem with the existing code
++++
#ifndef HAVE_DECL_GETLOADAVG
int getloadavg (double loadavg[], int nelem);
#endif
----
is that configure always defines HAVE_DECL_GETLOADAVG.
On sun and linux HAVE_DECL_GETLOADAVG is defined to be 1.
On aix HAVE_DECL_GETLOADAVG is defined to be 0.
++++
$ grep HAVE_DECL_GETLOADAVG src/config.h
#define HAVE_DECL_GETLOADAVG 0
----
This causes the preprocessor to remove this declaration of getloadavg from
job.c.
The attached patch does
++++
-#ifndef HAVE_DECL_GETLOADAVG
+#if HAVE_DECL_GETLOADAVG == 0 && !defined(HAVE_SYS_LOADAVG_H)
int getloadavg (double loadavg[], int nelem);
#endif
----
Tested on linux, sun and aix, all 64 bit.
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