From eef524fadf1d7392d064267c84d6234e756e4780 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20M=C3=BCller?= <straightshoota@gmail.com>
Date: Fri, 17 Jan 2025 14:02:32 +0100
Subject: [PATCH] Query runtime version of LLVM

---
 src/compiler/crystal/config.cr | 7 ++++++-
 src/llvm/lib_llvm/core.cr      | 4 ++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/compiler/crystal/config.cr b/src/compiler/crystal/config.cr
index 2f71aa49815c..da85583de3aa 100644
--- a/src/compiler/crystal/config.cr
+++ b/src/compiler/crystal/config.cr
@@ -11,7 +11,12 @@ module Crystal
     end
 
     def self.llvm_version
-      LibLLVM::VERSION
+      {% if LibLLVM.has_method?(:get_version) %}
+        LibLLVM.get_version(out major, out minor, out patch)
+        "#{major}.#{minor}.#{patch}"
+      {% else %}
+        LibLLVM::VERSION
+      {% end %}
     end
 
     def self.description
diff --git a/src/llvm/lib_llvm/core.cr b/src/llvm/lib_llvm/core.cr
index 7137501fdb31..ef7b8f10b567 100644
--- a/src/llvm/lib_llvm/core.cr
+++ b/src/llvm/lib_llvm/core.cr
@@ -17,6 +17,10 @@ lib LibLLVM
 
   fun dispose_message = LLVMDisposeMessage(message : Char*)
 
+  {% unless LibLLVM::IS_LT_160 %}
+    fun get_version = LLVMGetVersion(major : UInt*, minor : UInt*, patch : UInt*) : Void
+  {% end %}
+
   fun create_context = LLVMContextCreate : ContextRef
   fun dispose_context = LLVMContextDispose(c : ContextRef)