Add missing header include to pmsignal.h.

macdice · macdice · commit 579b985b2292 · 2018-08-02T12:14:22.000+12:00
pmsignal.h uses sig_atomic_t in some builds, but relied on signal.h having been included already. We could include it conditionally but evidently that wouldn't save anything in practice and would add more ugly macros, so let's just include signal.h always. Reported-by: Tom Lane Discussion: https://postgr.es/m/4166.1533154074%40sss.pgh.pa.us
diff --git a/src/include/storage/pmsignal.h b/src/include/storage/pmsignal.h
@@ -14,6 +14,8 @@
 #ifndef PMSIGNAL_H
 #define PMSIGNAL_H
 
+#include <signal.h>
+
 #ifdef HAVE_SYS_PRCTL_H
 #include "sys/prctl.h"
 #endif
