From ff637f14e6ab00e2ad170ff2eeaa0b5b93c1114d Mon Sep 17 00:00:00 2001
From: Anna Henningsen <anna@addaleax.net>
Date: Thu, 13 Apr 2017 22:31:44 +0200
Subject: [PATCH] build: disable -O3 for C++ coverage

The `cflags` for `--coverage` included `-O0` so far, but that was
overridden by a later `-O3`. Resolve that by adding
`'cflags!': [ '-O3' ]` and increase coverage accuracy.

Ref: https://coverage.nodejs.org/
PR-URL: https://github.com/nodejs/node/pull/12406
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 node.gypi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/node.gypi b/node.gypi
index d704834bd338a6..6aaabeed42aac1 100644
--- a/node.gypi
+++ b/node.gypi
@@ -323,7 +323,8 @@
                    '-O0' ],
        'cflags': [ '--coverage',
                    '-g',
-                   '-O0' ]
+                   '-O0' ],
+       'cflags!': [ '-O3' ]
     }],
     [ 'OS=="sunos"', {
       'ldflags': [ '-Wl,-M,/usr/lib/ld/map.noexstk' ],