build: fix c++ code coverage on macOS

PR-URL: #24520 Reviewed-By: Anna Henningsen <[email protected]>

Author: refack

node.gypi

@@ -274,25 +274,28 @@
 '-Wl,--whole-archive <(v8_base)',
 '-Wl,--no-whole-archive' ]
  }],
- [ 'OS in "mac freebsd linux" and node_shared=="false"'
-' and coverage=="true"',{
+ [ 'coverage=="true" and node_shared=="false" and OS in "mac freebsd linux"',{
+'cflags!': [ '-O3' ],
 'ldflags': [ '--coverage',
 '-g',
 '-O0' ],
 'cflags': [ '--coverage',
 '-g',
 '-O0' ],
-'cflags!': [ '-O3' ],
 'xcode_settings':{
-'OTHER_LDFLAGS': [
-'--coverage',
- ],
-'OTHER_CFLAGS+': [
+'OTHER_CFLAGS': [
 '--coverage',
 '-g',
 '-O0'
  ],
- }
+ },
+'conditions': [
+ [ '_type=="executable"',{
+'xcode_settings':{
+'OTHER_LDFLAGS': [ '--coverage', ],
+ },
+ }],
+ ],
  }],
  [ 'OS=="sunos"',{
 'ldflags': [ '-Wl,-M,/usr/lib/ld/map.noexstk' ],