[Bug 54214] New: No way to pass optimization levels in x86_64_CFLAGS to mingw

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=54214

Bug ID: 54214
           Summary: No way to pass optimization levels in x86_64_CFLAGS to
                    mingw
           Product: Wine
           Version: 8.0-rc2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

I'm trying to build Wine with increased optimizations, and while setting CFLAGS
/ CXXFLAGS works for native compilation parts (using: -O3 -march=znver3), when
it's doing cross compilation parts, those aren't picked up and uses default (-g
-O2).

I looked into the definitions, and Makefile is using x86_64_CFLAGS for mingw
invocations. But setting that in the environment is ignored.

What is the way to pass optimization levels to cross compilation part?