Fix some random -Wconversion warnings

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libmain/stack.cc b/src/libmain/stack.cc
index cc0eea68fca3..13896aeecb6e 100644
--- a/src/libmain/stack.cc
+++ b/src/libmain/stack.cc
@@ -30,7 +30,7 @@ static void sigsegvHandler(int signo, siginfo_t * info, void * ctx)
         if (diff < 0) diff = -diff;
         if (diff < 4096) {
             char msg[] = "error: stack overflow (possible infinite recursion)\n";
-            [[gnu::unused]] int res = write(2, msg, strlen(msg));
+            [[gnu::unused]] auto res = write(2, msg, strlen(msg));
             _exit(1); // maybe abort instead?
         }
     }