From bbcd959c2b1721d81af5829b56e01cc472b58816 Mon Sep 17 00:00:00 2001
From: Veikka Tuominen <git@vexu.eu>
Date: Sun, 20 Nov 2022 17:34:30 +0200
Subject: [PATCH] cli: warn about using `--debug-compile-errors` on a release
 build

---
 src/main.zig | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main.zig b/src/main.zig
index 410414b3a3..24518d743d 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1304,7 +1304,11 @@ fn buildOutputType(
                     } else if (mem.eql(u8, arg, "--no-gc-sections")) {
                         linker_gc_sections = false;
                     } else if (mem.eql(u8, arg, "--debug-compile-errors")) {
-                        debug_compile_errors = true;
+                        if (!crash_report.is_enabled) {
+                            std.log.warn("Zig was compiled in a release mode. --debug-compile-errors has no effect.", .{});
+                        } else {
+                            debug_compile_errors = true;
+                        }
                     } else if (mem.eql(u8, arg, "--verbose-link")) {
                         verbose_link = true;
                     } else if (mem.eql(u8, arg, "--verbose-cc")) {