add debug postfix to wkt, json and mapnik.

Mapnik can be installed with multi configuration enviroment

CMakeLists.txt

@@ -83,6 +83,10 @@ message(STATUS "Using c++ extensions: ${CXX_EXTENSIONS}")
 # https://cmake.org/cmake/help/latest/prop_tgt/CXX_STANDARD_REQUIRED.html#prop_tgt:CXX_STANDARD_REQUIRED
 set(CXX_STANDARD_REQUIRED ON) # require the specified CMAKE_CXX_STANDARD
 
+# add debug postfix to the libraries
+set(MAPNIK_DEBUG_POSTFIX "d" CACHE STRING "sets the debug library postfix on mapnik, wkt and json")
+message(STATUS "added postfix for debug libraries: ${MAPNIK_DEBUG_POSTFIX}")
+
 if(WIN32)
     set(DEFAULT_BIN_DIR bin)
     set(DEFAULT_LIB_DIR lib)

src/CMakeLists.txt

@@ -295,6 +295,8 @@ target_link_libraries(mapnik PRIVATE
     mapnik::agg
 )
 
+set_target_properties(mapnik PROPERTIES DEBUG_POSTFIX ${MAPNIK_DEBUG_POSTFIX})
+
 install(TARGETS mapnik 
     EXPORT MapnikTargets
     LIBRARY DESTINATION ${MAPNIK_LIB_DIR}

src/json/CMakeLists.txt

@@ -15,8 +15,6 @@ add_library(json STATIC
 )
 add_library(mapnik::json ALIAS json)
 
-set_property(TARGET json PROPERTY POSITION_INDEPENDENT_CODE ON)
-
 target_include_directories(json PRIVATE
     ${JPEG_INCLUDE_DIR}
     ${LIBXML2_INCLUDE_DIR}
@@ -26,6 +24,11 @@ target_include_directories(json PRIVATE
 )
 target_link_libraries(json PRIVATE mapnik::core ${ICUU_LIB})
 
+set_target_properties(json PROPERTIES 
+    DEBUG_POSTFIX ${MAPNIK_DEBUG_POSTFIX}
+    POSITION_INDEPENDENT_CODE ON
+)
+
 install(TARGETS json 
     EXPORT MapnikTargets
     LIBRARY DESTINATION ${MAPNIK_LIB_DIR}

src/wkt/CMakeLists.txt

@@ -6,8 +6,6 @@ add_library(wkt STATIC
 )
 add_library(mapnik::wkt ALIAS wkt)
 
-set_property(TARGET wkt PROPERTY POSITION_INDEPENDENT_CODE ON)
-
 target_include_directories(wkt PRIVATE
     ${MAPNIK_INCLUDE_PATH}
     ${JPEG_INCLUDE_DIR}
@@ -18,6 +16,11 @@ target_include_directories(wkt PRIVATE
 )
 target_link_libraries(wkt PRIVATE mapnik::core)
 
+set_target_properties(wkt PROPERTIES 
+    DEBUG_POSTFIX ${MAPNIK_DEBUG_POSTFIX}
+    POSITION_INDEPENDENT_CODE ON
+)
+
 install(TARGETS wkt 
     EXPORT MapnikTargets
     LIBRARY DESTINATION ${MAPNIK_LIB_DIR}