1 files changed, 18 insertions, 14 deletions
diff --git a/missing/flock.c b/missing/flock.c
index 5f6b41c357..0b76961762 100644
--- a/missing/flock.c
+++ b/missing/flock.c
@@ -1,9 +1,19 @@
-#include "config.h"
+#include "ruby/internal/config.h"
+#include "ruby/ruby.h"
 
 #if defined _WIN32
+#elif defined __wasi__
+#include <errno.h>
+
+int
+flock(int fd, int operation)
+{
+    errno = EINVAL;
+    return -1;
+}
 #elif defined HAVE_FCNTL && defined HAVE_FCNTL_H
 
-/* These are the flock() constants.  Since this sytems doesn't have
+/* These are the flock() constants.  Since this systems doesn't have
    flock(), the values of the constants are probably not available.
 */
 # ifndef LOCK_SH
@@ -24,12 +34,10 @@
 #include <errno.h>
 
 int
-flock(fd, operation)
-    int fd;
-    int operation;
+flock(int fd, int operation)
 {
     struct flock lock;
- 
+
     switch (operation & ~LOCK_NB) {
     case LOCK_SH:
 	lock.l_type = F_RDLCK;
@@ -46,7 +54,7 @@ flock(fd, operation)
     }
     lock.l_whence = SEEK_SET;
     lock.l_start = lock.l_len = 0L;
- 
+
     return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &lock);
 }
 
@@ -74,7 +82,7 @@ flock(fd, operation)
 #  define F_TEST	3	/* Test a region for other processes locks */
 # endif
 
-/* These are the flock() constants.  Since this sytems doesn't have
+/* These are the flock() constants.  Since this systems doesn't have
    flock(), the values of the constants are probably not available.
 */
 # ifndef LOCK_SH
@@ -91,9 +99,7 @@ flock(fd, operation)
 # endif
 
 int
-flock(fd, operation)
-    int fd;
-    int operation;
+flock(int fd, int operation)
 {
     switch (operation) {
 
@@ -125,9 +131,7 @@ flock(fd, operation)
 }
 #else
 int
-flock(fd, operation)
-    int fd;
-    int operation;
+flock(int fd, int operation)
 {
     rb_notimplement();
     return -1;