From 349fed3fcd9ba8dcda7764a439c95071b6a509ce Mon Sep 17 00:00:00 2001
From: van Hauser <vh@thc.org>
Date: Sun, 2 Aug 2020 11:08:47 +0200
Subject: warn on old llvm

---
 llvm_mode/GNUmakefile | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'llvm_mode')

diff --git a/llvm_mode/GNUmakefile b/llvm_mode/GNUmakefile
index a202fbb4..0813af34 100644
--- a/llvm_mode/GNUmakefile
+++ b/llvm_mode/GNUmakefile
@@ -57,13 +57,22 @@ ifeq "$(LLVM_UNSUPPORTED)" "1"
   $(warning llvm_mode only supports llvm versions 3.4 up to 12)
 endif
 
+LLVM_TOO_OLD=1
+
 ifeq "$(LLVM_MAJOR)" "9"
   $(info [+] llvm_mode detected llvm 9, enabling neverZero implementation)
+  LLVM_TOO_OLD=0
 endif
 
 ifeq "$(LLVM_NEW_API)" "1"
   $(info [+] llvm_mode detected llvm 10+, enabling neverZero implementation and c++14)
   LLVM_STDCXX = c++14
+  LLVM_TOO_OLD=0
+endif
+
+ifeq "$(LLVM_TOO_OLD)" "1"
+  $(info [!] llvm_mode detected an old version of llvm, upgrade to at least 9 or preferable 11!)
+  $(shell sleep 1)
 endif
 
 ifeq "$(LLVM_HAVE_LTO)" "1"
-- 
cgit 1.4.1