From 9d8eea97a523d828b7d1a04352bbd2202b914519 Mon Sep 17 00:00:00 2001
From: Sara Dickinson <sara@sinodun.com>
Date: Thu, 21 Jul 2022 14:17:53 +0100
Subject: [PATCH] Fix typo in cmake module for libidn2

diff --git a/cmake/modules/FindLibidn2.cmake b/cmake/modules/FindLibidn2.cmake
index c56d5b61..0ddcbc28 100644
--- a/cmake/modules/FindLibidn2.cmake
+++ b/cmake/modules/FindLibidn2.cmake
@@ -52,8 +52,8 @@
       )
   endif ()
 
-  if (NOT LIBIDN2_VERSION AND LIBIDN2_INCLUDE_DIR AND EXISTS "${LIBIDN2_INCLUDE_DIR}/unbound.h")
+  if (NOT LIBIDN2_VERSION AND LIBIDN2_INCLUDE_DIR AND EXISTS "${LIBIDN2_INCLUDE_DIR}/idn2.h")
-    file(STRINGS "${LIBIDN2_INCLUDE_DIR}/idn2.h" LIBIDN2_H REGEX "^#define IDN2_VERSION ")
-    string(REGEX REPLACE "^.*IDN2_VERSION \"([0-9.]+)\".*$" "\\1" LIBIDN2_VERSION "${LIBIDN2_H}")
+    file(STRINGS "${LIBIDN2_INCLUDE_DIR}/idn2.h" LIBIDN2_H REGEX "^[ \t]*#[ \t]*define[ \t]+IDN2_VERSION[ \t]")
+    string(REGEX REPLACE "^.*IDN2_VERSION[ \t]+\"([0-9.]+)\".*$" "\\1" LIBIDN2_VERSION "${LIBIDN2_H}")
   endif ()
 endif()
