ports/186929: [patch] Mk/bsd.port.mk: unconditionally add -fno-strict-aliasing

[Tijl Coosemans]

>Number:         186929
>Category:       ports
>Synopsis:       [patch] Mk/bsd.port.mk: unconditionally add -fno-strict-aliasing
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Thu Feb 20 22:50:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Tijl Coosemans
>Release:        FreeBSD 11.0-CURRENT i386
>Organization:
>Environment:
>Description:
Currently bsd.port.mk adds -fno-strict-aliasing to CFLAGS when it
detects -O2, -O3 or -Os, but clang has new optimisation flags such
as -O4, -Oz and -Ofast that also need it.

The attached patch adds -fno-strict-aliasing unconditionally.  There's
no harm in adding it to -O0 and -O1.
>How-To-Repeat:
>Fix:

--- bsd.port.mk.nostrictaliasing.patch begins here ---
Index: Mk/bsd.port.mk
===================================================================
--- Mk/bsd.port.mk	(revision 345014)
+++ Mk/bsd.port.mk	(working copy)
@@ -2053,7 +2053,7 @@ MAKE_ENV+=		PREFIX=${PREFIX} \
 # a lot of ports.
 .if !defined(WITHOUT_NO_STRICT_ALIASING)
 .if ${CC} != "icc"
-.if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
+.if empty(CFLAGS:M-fno-strict-aliasing)
 CFLAGS+=       -fno-strict-aliasing
 .endif
 .endif
--- bsd.port.mk.nostrictaliasing.patch ends here ---

>Release-Note:
>Audit-Trail:
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