runtime: fix building of alarm3f.c on Linux systems with modern glibc

Popular UNIX systems (e.g. Linux, MacOS) have alarm() function declared in unistd.h, there is no need to provide a separate forward declaration, which could go easily out of date and create a conflict at compile time. Signed-off-by: Paul Osmialowski <[email protected]>
flang-compiler · Jul 15, 2022 · 6c74b77 · 6c74b77
1 parent 92ca7fb
commit 6c74b77
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/runtime/flang/alarm3f.c b/runtime/flang/alarm3f.c
@@ -11,12 +11,13 @@
 
 #ifndef WINNT
 #include <signal.h>
+#include <unistd.h>
 #include "ent3f.h"
 
 /*
 extern void (*signal(int, void (*)(int)))(int);
-*/
 extern int alarm();
+*/
 
 int ENT3F(ALARM, alarm)(int *time, void (*proc)())
 {