From 0d286c9e19f7718a811647ab5321bfad8047ef79 Mon Sep 17 00:00:00 2001
From: fanquake <fanquake@gmail.com>
Date: Wed, 16 Apr 2025 12:07:39 +0100
Subject: [PATCH] build: improve lld version parsing

Currently, if LLD is in a weird location and has a version string like:
```bash
Ubuntu LLD 18.1.3 (compatible with GNU linkers)
```
or
```bash
Homebrew LLD 20.1.2 (compatible with GNU linkers)
```

The version comparison will fail:
```bash
GNUmakefile.llvm:247: ld.lld found in a weird location (/opt/homebrew/bin/ld.lld) and its of a different version than LLMV (LLD vs. 20.1.2) - cannot enable LTO mode
```

Fix that by replacing the usage of awk, with the same sed command used
to retrieve the version of Clang, which fixes the issue:
```bash
GNUmakefile.llvm:245: ld.lld found in a weird location (/opt/homebrew/bin/ld.lld), but its the same version as LLVM so we will allow it
```
---
 GNUmakefile.llvm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GNUmakefile.llvm b/GNUmakefile.llvm
index 653d3b68..73ec7cf7 100644
--- a/GNUmakefile.llvm
+++ b/GNUmakefile.llvm
@@ -240,7 +240,7 @@ ifeq "$(LLVM_LTO)" "1"
       else
         ifneq "$(shell command -v ld.lld 2>/dev/null)" ""
           AFL_REAL_LD = $(shell command -v ld.lld)
-          TMP_LDLDD_VERSION = $(shell $(AFL_REAL_LD) --version | awk '{ print $$2 }')
+          TMP_LDLDD_VERSION = $(shell $(AFL_REAL_LD) --version | sed -E -ne '/^.*LLD\ ([12]?[0-9]\.[0-9]\.[0-9]).*/s//\1/p')
           ifeq "$(LLVMVER)" "$(TMP_LDLDD_VERSION)"
             $(warning ld.lld found in a weird location ($(AFL_REAL_LD)), but its the same version as LLVM so we will allow it)
           else