rust187: On NetBSD/x86_64 9.x, use newer gcc to avoid issue w/pkgsrc LLVM 19.

[Havard Eidnes (via pkgsrc-wip) <commit-notify%pkgsrc.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Havard Eidnes <he%NetBSD.org@localhost>
Pushed By:	he
Date:		Sat Jun 21 17:21:40 2025 +0200
Changeset:	43de3a83ccfce3ca81d7274322ca10e722466363

Modified Files:
	rust187/options.mk

Log Message:
rust187: On NetBSD/x86_64 9.x, use newer gcc to avoid issue w/pkgsrc LLVM 19.

Apparently, using pkgsrc LLVM 19.x does not work on
NetBSD/x86_64 9.x unless rust is built with a newer
gcc than the platform-included 7.5.0.  Ref.
https://gnats.netbsd.org/59435 and
https://mail-index.netbsd.org/pkgsrc-users/2025/05/20/msg041603.html
and following discussion.

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=43de3a83ccfce3ca81d7274322ca10e722466363

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

diffstat:
 rust187/options.mk | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diffs:
diff --git a/rust187/options.mk b/rust187/options.mk
index 999196b96b..1ddbbdc0eb 100644
--- a/rust187/options.mk
+++ b/rust187/options.mk
@@ -48,6 +48,18 @@ GCC_REQD+=	12
 GCC_REQD+=	14
 .endif
 
+# Apparently, using pkgsrc LLVM 19.x does not work on
+# NetBSD/x86_64 9.x unless rust is built with a newer
+# gcc than the platform-included 7.5.0.  Ref.
+# https://gnats.netbsd.org/59435 and
+# https://mail-index.netbsd.org/pkgsrc-users/2025/05/20/msg041603.html
+# and following discussion.
+.if empty(PKG_OPTIONS:Mrust-internal-llvm)
+.  if ${MACHINE_PLATFORM:MNetBSD-9.*-x86_64}
+GCC_REQD+=	10
+.  endif
+.endif
+
 #
 # Use the internal copy of LLVM or the external one?
 #