Major Description
Trying to build with CMake with -DENABLE_LIBEVENT=ON on Ubuntu without openssl installed produces the following error message. On OS X, it doesn't know to use the brew installed openssl.
-- Performing Test EVENT__HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY -- Performing Test EVENT__HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY - Failed CMake Error at /usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:148 (message): Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR (missing: OPENSSL_LIBRARIES OPENSSL_INCLUDE_DIR) Call Stack (most recent call first): /usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE) /usr/share/cmake-3.5/Modules/FindOpenSSL.cmake:370 (find_package_handle_standard_args) CMakeLists.txt:591 (find_package) -- Configuring incomplete, errors occurred! See also "/BUILD/3rdparty/libevent-2.1.5-beta/src/libevent-2.1.5-beta-build/CMakeFiles/CMakeOutput.log". See also "/BUILD/3rdparty/libevent-2.1.5-beta/src/libevent-2.1.5-beta-build/CMakeFiles/CMakeError.log". -- Cache values // Choose the type of build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel. CMAKE_BUILD_TYPE:STRING= // Limited configurations CMAKE_CONFIGURATION_TYPES:STRING=Debug;Release // Install path prefix, prepended onto install directories. CMAKE_INSTALL_PREFIX:PATH=/usr/local // Define if libevent should be built with shared libraries instead of archives EVENT__BUILD_SHARED_LIBRARIES:BOOL=OFF // Enable running gcov to get a test coverage report (only works with GCC/CLang). Make sure to enable -DCMAKE_BUILD_TYPE=Debug as well. EVENT__COVERAGE:BOOL=OFF // Defines if libevent should build without the benchmark exectuables EVENT__DISABLE_BENCHMARK:BOOL=OFF // Define if libevent should build without support for a debug mode EVENT__DISABLE_DEBUG_MODE:BOOL=OFF // Disable verbose warnings with GCC EVENT__DISABLE_GCC_WARNINGS:BOOL=OFF // Define if libevent should not allow replacing the mm functions EVENT__DISABLE_MM_REPLACEMENT:BOOL=OFF // Define if libevent should build without support for OpenSSL encrpytion EVENT__DISABLE_OPENSSL:BOOL=OFF // Disable the regress tests EVENT__DISABLE_REGRESS:BOOL=OFF // Disable sample files EVENT__DISABLE_SAMPLES:BOOL=OFF // If tests should be compiled or not EVENT__DISABLE_TESTS:BOOL=OFF // Define if libevent should not be compiled with thread support EVENT__DISABLE_THREAD_SUPPORT:BOOL=OFF // Enable gcc function sections EVENT__ENABLE_GCC_FUNCTION_SECTIONS:BOOL=OFF // Enable compiler security checks EVENT__ENABLE_GCC_HARDENING:BOOL=OFF // Make all GCC warnings into errors EVENT__ENABLE_GCC_WARNINGS:BOOL=OFF // Enables verbose debugging EVENT__ENABLE_VERBOSE_DEBUG:BOOL=OFF // When crosscompiling forces running a test program that verifies that Kqueue works with pipes. Note that this requires you to manually run the test program on the the cross compilation target to verify that it works. See cmake documentation for try_run for more details EVENT__FORCE_KQUEUE_CHECK:BOOL=OFF // Path to a file. OPENSSL_INCLUDE_DIR:PATH=OPENSSL_INCLUDE_DIR-NOTFOUND 3rdparty/CMakeFiles/libevent-2.1.5-beta.dir/build.make:111: recipe for target '3rdparty/libevent-2.1.5-beta/src/libevent-2.1.5-beta-stamp/libevent-2.1.5-beta-configure' failed make[3]: *** [3rdparty/libevent-2.1.5-beta/src/libevent-2.1.5-beta-stamp/libevent-2.1.5-beta-configure] Error 1 make[3]: Leaving directory '/BUILD' CMakeFiles/Makefile2:534: recipe for target '3rdparty/CMakeFiles/libevent-2.1.5-beta.dir/all' failed make[2]: Leaving directory '/BUILD' make[2]: *** [3rdparty/CMakeFiles/libevent-2.1.5-beta.dir/all] Error 2 CMakeFiles/Makefile2:546: recipe for target '3rdparty/CMakeFiles/libevent-2.1.5-beta.dir/rule' failed make[1]: *** [3rdparty/CMakeFiles/libevent-2.1.5-beta.dir/rule] Error 2 make[1]: Leaving directory '/BUILD' Makefile:234: recipe for target '3rdparty/CMakeFiles/libevent-2.1.5-beta.dir/rule' failed make: *** [3rdparty/CMakeFiles/libevent-2.1.5-beta.dir/rule] Error 2