1 files changed, 5 insertions, 3 deletions

diff --git a/cmake/ModulePackage.cmake b/cmake/ModulePackage.cmake
index 38f841ba..3a4eb9b9 100644
--- a/cmake/ModulePackage.cmake
+++ b/cmake/ModulePackage.cmake
@@ -10,7 +10,7 @@ if(NOT ENABLE_SHARED AND NOT ENABLE_STATIC)
   set(ENABLE_SHARED ON)
 endif()
 
-find_package(PkgConfig REQUIRED)
+find_package(PkgConfig)
 
 if(COMPILE_AS_CXX)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__STDC_FORMAT_MACROS=1")
@@ -34,8 +34,10 @@ function(add_c_executable exec)
   add_executable(${exec} ${ARGN})
 endfunction()
 
-function(pkg_use_module mod)
-  pkg_search_module(${mod} ${ARGN})
+function(pkg_use_module mod pkg)
+  if(PKG_CONFIG_FOUND)
+    pkg_search_module(${mod} ${pkg})
+  endif()
   if(${mod}_FOUND)
     link_directories(${${mod}_LIBRARY_DIRS})
     include_directories(${${mod}_INCLUDE_DIRS})