Buildsystem: Fixed disabling compiler warnings in dep for clang/icc

(cherry picked from commit c24787f666)

(reverts 77f7f56268)

Conflicts:
	dep/CascLib/CMakeLists.txt
	dep/zmqpp/CMakeLists.txt

dep/CMakeLists.txt

@@ -8,10 +8,10 @@
 # WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
-if( CMAKE_COMPILER_IS_GNUCXX )
-  add_definitions(--no-warnings)
-elseif( MSVC )
+if( MSVC )
   add_definitions(/W0)
+else()
+  add_definitions(-w)
 endif()
 
 if(CMAKE_SYSTEM_NAME MATCHES "Linux")

dep/gsoap/CMakeLists.txt

@@ -21,11 +21,6 @@ include_directories(
 # Little fix for MSVC / Windows platforms
 add_definitions(-D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=0)
 
-# Turn off warnings for gsoap till the sources are updated
-IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
-	set_source_files_properties(stdsoap2.cpp PROPERTIES COMPILE_FLAGS -Wno-unused-parameter)
-endif()
-
 add_library(gsoap STATIC ${gsoap_STAT_SRCS})
 
 set_target_properties(gsoap PROPERTIES LINKER_LANGUAGE CXX)