From 087576f2d9d320cff5ba41df29120a8d8cc0e08b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zdenko=20Podobn=C3=BD?= <zdenop@gmail.com>
Date: Mon, 29 Apr 2019 18:00:03 +0200
Subject: [PATCH] cmake: fix linux build

---
 CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6e0425d5ae..ff6e6c617b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -143,8 +143,11 @@ endif()
 ###############################################################################
 
 if(NOT CPPAN_BUILD)
+    find_package(PkgConfig)
     if (NOT Leptonica_DIR AND NOT MSVC AND COMMAND pkg_check_modules)
-        find_package(PkgConfig REQUIRED)
+        if(NOT PKG_CONFIG_EXECUTABLE)
+            message(FATAL_ERROR "Missing required pkg-config")
+        endif()
         pkg_check_modules(Leptonica REQUIRED lept>=${MINIMUM_LEPTONICA_VERSION})
         link_directories(${Leptonica_LIBRARY_DIRS})
     else()