[pkgsrc/trunk]: pkgsrc/lang/rust rust: Avoid using external llvm when externa...

[nia <nia%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/28b3ff1d8538
branches:  trunk
changeset: 337907:28b3ff1d8538
user:      nia <nia%pkgsrc.org@localhost>
date:      Wed Aug 14 16:00:23 2019 +0000

description:
rust: Avoid using external llvm when external llvm isn't pkgsrc llvm.

Reported as a build failure in #pkgsrc by ng0.

diffstat:

 lang/rust/options.mk |  6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diffs (20 lines):

diff -r 9ae6afdcaee6 -r 28b3ff1d8538 lang/rust/options.mk
--- a/lang/rust/options.mk      Wed Aug 14 15:53:38 2019 +0000
+++ b/lang/rust/options.mk      Wed Aug 14 16:00:23 2019 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: options.mk,v 1.2 2019/08/14 13:05:25 nia Exp $
+# $NetBSD: options.mk,v 1.3 2019/08/14 16:00:23 nia Exp $
 
 PKG_OPTIONS_VAR=               PKG_OPTIONS.rust
 
@@ -7,6 +7,10 @@
 # The bundled LLVM current has issues building on SunOS.
 .if ${OPSYS} != "SunOS" && ${OPSYS} != "Darwin"
 PKG_SUPPORTED_OPTIONS+=                rust-llvm
+# There may be compatibility issues with base LLVM.
+.  if !empty(HAVE_LLVM)
+PKG_SUGGESTED_OPTIONS+=                rust-llvm
+.  endif
 .endif
 
 .include "../../mk/bsd.options.mk"