Check for needed magic functions before using libmagic

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@40795 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/development/cmake/modules/FindMagic.cmake b/development/cmake/modules/FindMagic.cmake
index 7690fb983946b1d743b06dc5d7a7e3444283d55c..74902a2e7a6a30320d580155c4f8fab1c7b496c2 100644 (file)
--- a/development/cmake/modules/FindMagic.cmake
+++ b/development/cmake/modules/FindMagic.cmake
@@ -28,6 +28,20 @@
 
 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
 
+include(CheckFunctionExists)
+macro(check_magic_functions_exists _varname)
+       set(${_varname} 1)
+       if (Magic_LIBRARY)
+               set(CMAKE_REQUIRED_LIBRARIES ${Magic_LIBRARY})
+       endif()
+       foreach(fkt file open load close error)
+               check_function_exists(magic_${fkt} HAS_function_magic_${fkt})
+               if (NOT HAS_function_magic_${fkt})
+                       set(${_varname} 0)
+                       message(STATUS "Function magic_${fkt} not found")
+               endif()
+       endforeach()
+endmacro()
 if (Magic_INCLUDE_DIR)
   # Already in cache, be silent
   set(Magic_FIND_QUIETLY TRUE)
@@ -39,9 +53,9 @@ find_path(Magic_INCLUDE_DIR magic.h PATHS
        
 find_library(Magic_LIBRARY NAMES "magic")
        
-include(CheckFunctionExists)
-check_function_exists(magic_open HAVE_HAVE_MAGIC_OPEN)
-if(Magic_INCLUDE_DIR AND Magic_LIBRARY)
+check_magic_functions_exists(HAS_MAGIC_FUNCTIONS)
+
+if(Magic_INCLUDE_DIR AND Magic_LIBRARY AND HAS_MAGIC_FUNCTIONS)
        set(Magic_FOUND TRUE)
 endif()