Appveyor provides 2 CPUs for each builder[1], make sure to use parallel
compilation, when running with CMake. CMake learned this new option in
version 3.12[2] and the version provided by appveyor is fresh enough.
Curl doesn't really take that long to build and it is using the slowest
builder available, msbuild, so expect only a moderate improvement in
build times.
[1] https://www.appveyor.com/docs/build-environment/
[2] https://cmake.org/cmake/help/v3.12/release/3.12.html
Closes #4508
-DCMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG=""
-DCMAKE_INSTALL_PREFIX="C:/CURL"
-DCMAKE_BUILD_TYPE=%PRJ_CFG% &&
- cmake --build . --config %PRJ_CFG% --clean-first -- %BUILD_OPT%) else (
+ cmake --build . --config %PRJ_CFG% --parallel 2 --clean-first -- %BUILD_OPT%) else (
if %BUILD_SYSTEM%==VisualStudioSolution (
cd projects &&
.\\generate.bat %VC_VERSION% &&