sigfd: set SIGWINCH for MIPS and PA-RISC on Linux

SIGWINCH is actually different for these architectures on Linux
according to the signal(7) man page.

Note: AFAICS there's no parisc machine in the GCC Farm[1],
so it remains untested.  I've only tested mips64 for mips,
but I expect them to both work.

OpenBSD (on gcc231) octeon defines SIGWINCH as the common `28',
so it appears Linux is the only one with arch-dependent signal
numbers (ditto with syscalls).

[1] https://cfarm.tetaneutral.net/machines/list/

1 files changed, 2 insertions, 0 deletions

diff --git a/devel/syscall-list b/devel/syscall-list
index adb450da..0b36c0e2 100755
--- a/devel/syscall-list
+++ b/devel/syscall-list
@@ -26,6 +26,7 @@ system($cc, '-o', $x, $f, @cflags) == 0 or die "cc failed \$?=$?";
 exec($x);
 __DATA__
 #define _GNU_SOURCE
+#include <signal.h>
 #include <sys/syscall.h>
 #include <sys/ioctl.h>
 #ifdef __linux__
@@ -65,5 +66,6 @@ int main(void)
 #endif /* Linux, any other OSes with stable syscalls? */
         printf("size_t=%zu off_t=%zu pid_t=%zu\n",
                  sizeof(size_t), sizeof(off_t), sizeof(pid_t));
+        D(SIGWINCH);
         return 0;
 }