- fix cmake build on Fedora and other non friendly static lib distro's

mk/cmake/Modules/FindCURL.cmake

@@ -42,12 +42,12 @@ IF(CURL_FOUND)
 	        OUTPUT_VARIABLE CURL_STATIC_LIBS
 	        RETURN_VALUE RET)
 
-	MESSAGE(STATUS "CURL RET = ${RET}")
+	MESSAGE(STATUS "CURL RET = ${RET} libs: [${CURL_STATIC_LIBS}]")
       ELSE()
       	SET(RET 1)
       ENDIF()
 
-      IF(${RET} EQUAL 0)
+      IF(RET EQUAL 0 AND CURL_STATIC_LIBS)
         MESSAGE(STATUS "USING CURL STATIC LIBS: ${CURL_STATIC_LIBS}")
       	SET(CURL_LIBRARIES "-Bstatic ${CURL_STATIC_LIBS}")
       ELSE()