Replace pthread and dl linking with cmake-based variables

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

ConfigureChecks.cmake

@@ -50,22 +50,13 @@ check_include_file( "pthread.h" HAVE_LIBPTHREAD )
 
 ##### check for system libraries ################
 
-set( DL_LIBRARIES dl )
-check_library_exists( ${DL_LIBRARIES} dlopen /lib HAVE_LIBDL )
-if( NOT HAVE_LIBDL )
-  unset( DL_LIBRARIES )
-  check_function_exists( dlopen HAVE_DLOPEN )
-  if( HAVE_DLOPEN )
-    set( HAVE_LIBDL 1 )
-  endif( HAVE_DLOPEN )
-endif( NOT HAVE_LIBDL )
-
 find_package( Threads )
 
 
 ##### check for functions #######################
 
-tde_save_and_set( CMAKE_REQUIRED_LIBRARIES ${DL_LIBRARIES} )
+tde_save_and_set( CMAKE_REQUIRED_LIBRARIES ${CMAKE_DL_LIBS} )
+check_function_exists( dlopen HAVE_LIBDL )
 check_function_exists( dlerror HAVE_DLERROR )
 check_function_exists( strcmp HAVE_STRCMP )
 check_function_exists( strchr HAVE_STRCHR )

artsc/CMakeLists.txt

@@ -18,8 +18,8 @@ set( prefix ${CMAKE_INSTALL_PREFIX} )
 set( exec_prefix $prefix )
 set( libdir ${LIB_INSTALL_DIR} )
 set( includedir ${CMAKE_INSTALL_PREFIX}/include/artsc )
-if( NOT "${DL_LIBRARIES}" STREQUAL "" )
+if( NOT "${CMAKE_DL_LIBS}" STREQUAL "" )
-  set( LIBDL -l${DL_LIBRARIES} )
+  set( LIBDL -l${CMAKE_DL_LIBS} )
 endif( )
 set( USE_THREADS )
 set( LIBPTHREAD ${CMAKE_THREAD_LIBS_INIT} )
@@ -72,7 +72,7 @@ install( FILES
 tde_add_library( artsdsp SHARED
   SOURCES artsdsp.c
   VERSION 0.0.0
-  LINK artsc-shared ${DL_LIBRARIES}
+  LINK artsc-shared ${CMAKE_DL_LIBS}
   DESTINATION ${LIB_INSTALL_DIR}
 )
 

mcop_mt/CMakeLists.txt

@@ -24,6 +24,6 @@ include_directories(
 tde_add_library( mcop_mt SHARED
   SOURCES threads_posix.cpp
   VERSION 1.0.0
-  LINK artsflow-shared pthread
+  LINK artsflow-shared ${CMAKE_THREAD_LIBS_INIT}
   DESTINATION ${LIB_INSTALL_DIR}
 )