[PATCH 4/4] loader: Use _NSGetExecutablePath to implement get_self_exe on macOS.

[Brendan Shanks]

From: Brendan Shanks

---
 loader/main.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/loader/main.c b/loader/main.c
index 3467d29cb5c..f8b113f3136 100644
--- a/loader/main.c
+++ b/loader/main.c
@@ -34,6 +34,9 @@
 #ifdef HAVE_SYS_SYSCTL_H
 # include <sys/sysctl.h>
 #endif
+#ifdef __APPLE__
+# include <mach-o/dyld.h>
+#endif

#include "main.h"

@@ -134,6 +137,12 @@ static const char *get_self_exe(void)
     if (path && !sysctl( pathname, sizeof(pathname)/sizeof(pathname[0]), path, &path_size, NULL, 0 ))
         return path;
     free( path );
+#elif defined(__APPLE__)
+    uint32_t path_size = PATH_MAX;
+    char *path = malloc( path_size );
+    if (path && !_NSGetExecutablePath( path, &path_size ))
+        return path;
+    free( path );
 #endif
     return NULL;
 }