[PATCH 2/4] tools: Use _NSGetExecutablePath to implement get_bindir on macOS.

[Brendan Shanks]

From: Brendan Shanks

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57874
---
 tools/tools.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/tools.h b/tools/tools.h
index 319aff77da7..f017bab0e93 100644
--- a/tools/tools.h
+++ b/tools/tools.h
@@ -39,6 +39,9 @@
 #ifdef HAVE_SYS_SYSCTL_H
 # include <sys/sysctl.h>
 #endif
+#ifdef __APPLE__
+# include <mach-o/dyld.h>
+#endif

#ifdef _WIN32
 # include <direct.h>
@@ -705,6 +708,12 @@ static inline char *get_bindir( const char *argv0 )
     if (!sysctl( pathname, ARRAY_SIZE(pathname), path, &path_size, NULL, 0 ))
         dir = realpath( path, NULL );
     free( path );
+#elif defined(__APPLE__)
+    uint32_t path_size = PATH_MAX;
+    char *path = xmalloc( path_size );
+    if (!_NSGetExecutablePath( path, &path_size ))
+        dir = realpath( path, NULL );
+    free( path );
 #endif
     if (!dir && !(dir = realpath( argv0, NULL ))) return NULL;
     return get_dirname( dir );