curl: Update build within CMake to account for 7.61 changes

The_CURL_STATICLIB option was replaced by BUILD_SHARED_LIBS.

Drop our own CURL_STATICLIB compile definition because it is now
provided by curl's usage requirements.

CMakeLists.txt

@@ -410,7 +410,6 @@ macro (CMAKE_BUILD_UTILITIES)
     set(CURL_SPECIAL_ZLIB_H ${CMAKE_ZLIB_HEADER})
     set(CURL_SPECIAL_LIBZ_INCLUDES ${CMAKE_ZLIB_INCLUDES})
     set(CURL_SPECIAL_LIBZ ${CMAKE_ZLIB_LIBRARIES})
-    add_definitions(-DCURL_STATICLIB)
     set(CMAKE_CURL_INCLUDES)
     set(CMAKE_CURL_LIBRARIES cmcurl)
     if(CMAKE_TESTS_CDASH_SERVER)

Utilities/cmcurl/CMakeLists.txt

@@ -2,6 +2,7 @@
 set(BUILD_CURL_EXE OFF CACHE INTERNAL "No curl exe")
 set(BUILD_DASHBOARD_REPORTS OFF CACHE INTERNAL "No curl dashboard reports")
 set(BUILD_RELEASE_DEBUG_DIRS OFF CACHE INTERNAL "No curl release/debug dirs")
+set(BUILD_SHARED_LIBS OFF CACHE INTERNAL "Build shared libraries")
 set(CMAKE_USE_GSSAPI OFF CACHE INTERNAL "Disable curl gssapi")
 set(CMAKE_USE_LIBSSH2 OFF CACHE INTERNAL "Disable curl libssh2")
 set(CMAKE_USE_OPENLDAP OFF CACHE INTERNAL "No curl OpenLDAP")
@@ -23,7 +24,6 @@ set(CURL_DISABLE_TELNET ON CACHE INTERNAL "Disable curl telnet protocol?")
 set(CURL_DISABLE_TFTP ON CACHE INTERNAL "Disable curl tftp protocol?")
 set(CURL_DISABLE_VERBOSE_STRINGS OFF CACHE INTERNAL "Do not disable curl verbosity")
 set(CURL_HIDDEN_SYMBOLS OFF CACHE INTERNAL "No curl hidden symbols")
-set(CURL_STATICLIB ON CACHE INTERNAL "Static curl")
 set(CURL_WERROR OFF CACHE INTERNAL "Turn compiler warnings into errors")
 set(DISABLED_THREADSAFE OFF CACHE INTERNAL "Curl can use thread-safe functions")
 set(ENABLE_ARES OFF CACHE INTERNAL "No curl c-ares support")