cmake: fix and tidy up c-ares builds, enable in more CI jobs

- set `CARES_NO_DEPRECATED` to avoid c-ares deprecation warnings.
  Like autotools does.

- drop unused c-ares header directory when building libtests and test
  servers.

- disable TrackMemory (aka `CURLDEBUG`) feature for MSVC builds.
  It fails on test 558 and 1330, saying that TrackMemory isn't working.
  Left a FIXME about it.

- GHA/macos: enable c-ares in a cmake job.

- GHA/windows: enable c-ares in MSVC job.
  Fixes #14202

- GHA/windows: add c-ares mingw autotools job with tests.
  (move `--with-windows-unicode` option from 'default' job to
  this one to keep the former "default".)
  Put these tests on ignore for now:
  ```
  FAIL 472: 'aws-sigv4 with query' HTTP, aws-sigv4
  FAIL 1299: 'Send "OPTIONS *" with --request-target' HTTP, --request-target
  FAIL 1613: 'Send "OPTIONS *" with --request-target to a proxy' HTTP, HTTP proxy, --request-target
  ```
  Ref: https://github.com/curl/curl/actions/runs/10388126947/job/28765761441#step:15:5902

  472: fails with mingw despite Unicode enabled.
  1299, 1613: seem like a case of expanding '*' to a filename.

- GHA/windows: enable c-ares in mingw cmake job.

Closes #14541

.github/workflows/macos.yml

@@ -283,9 +283,9 @@ jobs:
           - name: 'SecureTransport ws debug+'
             generate: -DCURL_USE_SECTRANSP=ON -DENABLE_WEBSOCKETS=ON -DENABLE_DEBUG=ON -DENABLE_CURLDEBUG=ON
             macos-version-min: '10.8'
-          - name: 'LibreSSL !ldap heimdal'
+          - name: 'LibreSSL !ldap heimdal c-ares'
             install: libressl heimdal
-            generate: -DOPENSSL_ROOT_DIR=$(brew --prefix libressl) -DCURL_USE_GSSAPI=ON -DGSS_ROOT_DIR=$(brew --prefix heimdal) -DCURL_DISABLE_LDAP=ON -DCURL_DISABLE_LDAPS=ON -DBUILD_EXAMPLES=ON
+            generate: -DOPENSSL_ROOT_DIR=$(brew --prefix libressl) -DENABLE_ARES=ON -DCURL_USE_GSSAPI=ON -DGSS_ROOT_DIR=$(brew --prefix heimdal) -DCURL_DISABLE_LDAP=ON -DCURL_DISABLE_LDAPS=ON -DBUILD_EXAMPLES=ON
             macos-version-min: '10.15'
           - name: 'wolfSSL !ldap'
             install: wolfssl

.github/workflows/windows.yml

@@ -52,9 +52,10 @@ jobs:
           - { build: 'autotools', sys: 'msys'   , env: 'x86_64'      , tflags: '!19 !504 !704 !705 !1233', config: '--enable-debug --disable-threaded-resolver', name: 'default' }
           - { build: 'cmake'    , sys: 'msys'   , env: 'x86_64'      , tflags: 'skipall'                 , config: '-DENABLE_DEBUG=ON -DENABLE_THREADED_RESOLVER=OFF', name: 'default' }
           - { build: 'autotools', sys: 'msys'   , env: 'x86_64'      , tflags: '!19 !504 !704 !705 !1233', config: '', name: 'default R' }
-          - { build: 'autotools', sys: 'mingw64', env: 'x86_64'      , tflags: 'skiprun'                 , config: '--enable-debug --disable-threaded-resolver --disable-curldebug --enable-static=no --with-windows-unicode', name: 'default' }
+          - { build: 'autotools', sys: 'mingw64', env: 'x86_64'      , tflags: 'skiprun'                 , config: '--enable-debug --disable-threaded-resolver --disable-curldebug --enable-static=no', name: 'default' }
+          - { build: 'autotools', sys: 'mingw64', env: 'x86_64'      , tflags: '~472 ~1299 ~1613'        , config: '--enable-debug --with-windows-unicode --enable-ares', name: 'c-ares U' }
           # FIXME: WebSockets test results ignored due to frequent failures on native Windows:
-          - { build: 'cmake'    , sys: 'mingw64', env: 'x86_64'      , tflags: '~2301 ~2302'             , config: '-DENABLE_DEBUG=ON -DBUILD_SHARED_LIBS=OFF -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON', type: 'Debug', name: 'schannel U' }
+          - { build: 'cmake'    , sys: 'mingw64', env: 'x86_64'      , tflags: '~2301 ~2302'             , config: '-DENABLE_DEBUG=ON -DBUILD_SHARED_LIBS=OFF -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_ARES=ON', type: 'Debug', name: 'schannel c-ares U' }
           - { build: 'cmake'    , sys: 'ucrt64' , env: 'ucrt-x86_64' , tflags: 'skiprun'                 , config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_CURLDEBUG=ON', type: 'Release', name: 'schannel R TrackMemory' }
           - { build: 'cmake'    , sys: 'clang64', env: 'clang-x86_64', tflags: 'skiprun'                 , config: '-DENABLE_DEBUG=ON -DBUILD_SHARED_LIBS=OFF -DCURL_USE_OPENSSL=ON -DENABLE_UNICODE=OFF', type: 'Release', name: 'openssl' }
           - { build: 'cmake'    , sys: 'mingw64', env: 'x86_64'      , tflags: 'skiprun'                 , config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DBUILD_EXAMPLES=OFF', type: 'Release', test: 'uwp', name: 'schannel R' }
@@ -79,6 +80,7 @@ jobs:
             mingw-w64-${{ matrix.env }}-openssl
             mingw-w64-${{ matrix.env }}-libssh2
             mingw-w64-${{ matrix.env }}-libpsl
+            mingw-w64-${{ matrix.env }}-c-ares
 
       - name: 'autotools autoreconf'
         if: ${{ matrix.build == 'autotools' }}
@@ -359,12 +361,12 @@ jobs:
           tflags: '~1516 ~2301 ~2302 ~2303 ~2307'
           config: '-DENABLE_DEBUG=ON -DENABLE_UNICODE=ON  -DCURL_USE_SCHANNEL=ON  -DCURL_BROTLI=ON -DCURL_ZSTD=ON -DCURL_USE_LIBPSL=ON -DBUILD_SHARED_LIBS=OFF -DCURL_USE_LIBSSH2=ON -DUSE_WIN32_IDN=ON -DCURL_USE_GSASL=ON -DCURL_USE_OPENSSL=ON -DCURL_USE_MBEDTLS=ON -DCURL_USE_GNUTLS=ON -DCURL_DEFAULT_SSL_BACKEND=schannel'
         - name: 'openssl'
-          install: 'brotli zlib zstd libpsl nghttp2 nghttp3 openssl libssh2 pkgconf gsasl'
+          install: 'brotli zlib zstd libpsl nghttp2 nghttp3 openssl libssh2 pkgconf gsasl c-ares'
           arch: 'x64'
           plat: 'windows'
           type: 'Debug'
           tflags: '~1516 ~2301 ~2302 ~2303 ~2307'
-          config: '-DENABLE_DEBUG=ON -DENABLE_UNICODE=OFF -DCURL_USE_SCHANNEL=OFF -DCURL_BROTLI=ON -DCURL_ZSTD=ON -DCURL_USE_LIBPSL=ON -DBUILD_SHARED_LIBS=OFF -DCURL_USE_LIBSSH2=ON -DCURL_USE_OPENSSL=ON -DUSE_OPENSSL_QUIC=ON -DCURL_USE_GSASL=ON'
+          config: '-DENABLE_DEBUG=ON -DENABLE_UNICODE=OFF -DCURL_USE_SCHANNEL=OFF -DCURL_BROTLI=ON -DCURL_ZSTD=ON -DCURL_USE_LIBPSL=ON -DBUILD_SHARED_LIBS=OFF -DCURL_USE_LIBSSH2=ON -DCURL_USE_OPENSSL=ON -DUSE_OPENSSL_QUIC=ON -DCURL_USE_GSASL=ON -DENABLE_ARES=ON'
         - name: 'openssl'
           install: 'brotli zlib zstd        nghttp2 nghttp3 openssl libssh2'
           arch: 'x64'

CMakeLists.txt

@@ -162,6 +162,10 @@ include(PickyWarnings)
 option(ENABLE_DEBUG "Set to ON to enable curl debug features" OFF)
 option(ENABLE_CURLDEBUG "Set to ON to build with TrackMemory feature enabled" ${ENABLE_DEBUG})
 
+if(MSVC)
+  set(ENABLE_CURLDEBUG OFF)  # FIXME: TrackMemory fails with MSVC according to test 558 and 1330. Tested with static build, Debug mode.
+endif()
+
 if(ENABLE_DEBUG)
   set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS "DEBUGBUILD")
 endif()
@@ -218,6 +222,7 @@ if(ENABLE_ARES)
   find_package(CARES REQUIRED)
   list(APPEND CURL_LIBS ${CARES_LIBRARIES})
   list(APPEND LIBCURL_PC_REQUIRES_PRIVATE "libcares")
+  add_definitions("-DCARES_NO_DEPRECATED")  # Ignore c-ares deprecation warnings
 endif()
 
 include(CurlSymbolHiding)

tests/libtest/CMakeLists.txt

@@ -37,9 +37,6 @@ function(setup_test _test_name)  # ARGN are the files in the test
     "${CURL_SOURCE_DIR}/lib"            # for "curl_setup.h"
     "${CURL_SOURCE_DIR}/tests/libtest"  # to be able to build generated tests
   )
-  if(USE_ARES)
-    include_directories(${CARES_INCLUDE_DIRS})
-  endif()
 
   target_link_libraries(${_test_name} ${LIB_SELECTED} ${CURL_LIBS})
 

tests/server/CMakeLists.txt

@@ -30,9 +30,6 @@ function(setup_executable _test_name)  # ARGN are the files in the test
     "${CURL_SOURCE_DIR}/lib"  # for "curl_setup.h"
     "${CURL_SOURCE_DIR}/src"  # for "tool_xattr.h" in disabled_SOURCES
   )
-  if(USE_ARES)
-    include_directories(${CARES_INCLUDE_DIRS})
-  endif()
 
   target_link_libraries(${_test_name} ${CURL_LIBS})