cmake: Add detection of standalone iconv library.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

ConfigureChecks.cmake

@@ -337,9 +337,25 @@ if( BUILD_XCF )
 
   check_include_file( "iconv.h" HAVE_ICONV_H )
   if( NOT HAVE_ICONV_H )
-    tde_message_fatal( "xcf codec was requested but libiconv not found on your system" )
+    tde_message_fatal( "xcf codec was requested but iconv header not found on your system" )
+  endif( )
+
+  message( STATUS "Check for standalone libiconv" )
+  find_library( HAVE_LIBICONV iconv )
+  if( HAVE_LIBICONV )
+    set( ICONV_LIBRARIES iconv )
+    message( STATUS "Check for standalone libiconv - found" )
+  else( )
+    set( ICONV_LIBRARIES "" )
+   message( STATUS "Check for standalone libiconv - not found" )
+  endif( )
+
+  tde_save_and_set( CMAKE_REQUIRED_LIBRARIES "${ICONV_LIBRARIES}" )
+  check_function_exists( "iconv_open" HAVE_ICONV )
+  tde_restore( CMAKE_REQUIRED_LIBRARIES )
+  if( NOT HAVE_ICONV )
+    tde_message_fatal( "xcf codec was requested but iconv library not found on your system" )
   endif()
-  set( HAVE_ICONV 1 )
 endif( )
 
 

kernel/kls_xcf/xcf2pnm/CMakeLists.txt

@@ -10,5 +10,6 @@ include_directories(
 file( GLOB _bin_c_files RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/*.c )
 tde_add_executable( ksquirrel-libs-xcf2pnm
   SOURCES ${_bin_c_files}
+  LINK ${ICONV_LIBRARIES}
   DESTINATION ${BIN_INSTALL_DIR}
 )