win32: ash: path_advance(): save space for .exe later

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/shell/ash.c b/shell/ash.c
index db27cefe5..8df1a4062 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -2274,7 +2274,9 @@ path_advance(const char **path, const char *name)
                 continue;
 #endif
         len = p - start + strlen(name) + 2;     /* "2" is for '/' and '\0' */
-        while (stackblocksize() < len)
+
+        /* preserve space for .exe too */
+        while (stackblocksize() < (ENABLE_PLATFORM_MINGW32 ? len+4 : len))
                 growstackblock();
         q = stackblock();
         if (p != start) {