rust176: use += for GCC_REQD.

[Havard Eidnes <he%NetBSD.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Havard Eidnes <he%NetBSD.org@localhost>
Pushed By:	he
Date:		Mon Mar 4 15:59:55 2024 +0000
Changeset:	457bf5ca3b64d0c05f2fc09f4bb122e9d71ee6aa

Modified Files:
	rust176/options.mk

Log Message:
rust176: use += for GCC_REQD.

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=457bf5ca3b64d0c05f2fc09f4bb122e9d71ee6aa

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 rust176/options.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diffs:
diff --git a/rust176/options.mk b/rust176/options.mk
index 8c59cc8b5d..9907c3dbd2 100644
--- a/rust176/options.mk
+++ b/rust176/options.mk
@@ -26,7 +26,7 @@ PKG_SUGGESTED_OPTIONS+=		rust-internal-llvm
 .if ${MACHINE_PLATFORM:MNetBSD-10.*-sparc64}
 .  if !empty(PKG_OPTIONS:Mrust-internal-llvm)
 # Require GCC 12 (from pkgsrc) to correctly build the embedded LLVM (17.x).
-GCC_REQD=	12
+GCC_REQD+=	12
 .  endif
 .endif