enderandrew
commented
6 months ago I had missed another CMake file in a subdirectory with find_package(zlib required) and that was causing the failure, even with -sUSE_ZLIB=1
Open enderandrew opened 7 months ago
enderandrew
commented
6 months ago I had missed another CMake file in a subdirectory with find_package(zlib required) and that was causing the failure, even with -sUSE_ZLIB=1
sbc100
commented
6 months ago Is this still and issue (i.e. do you need find_package(zlib required) to work or do you have a solution now?)
curiousdannii
commented
6 months ago This works for me
target_compile_options(app PRIVATE --use-port=zlib)
target_link_options(app PRIVATE --use-port=zlib)Probably don't use both -sUSE_ZLIB=1 and --use-port=zlib?
I have tried running emsdk on Windows 11, wsl on Windows, and also on a Debian VM. I get the same behavior in all 3 with the latest emsdk. I am trying to build a project that supposedly already has emscripten support. I tried adding a use flag for zlib, but it cannot be found. I have the dev packages installed in Linux and can compile natively for Linux, but not with emsdk for emscripten.
What I'm trying to compile is:
https://github.com/gerstrong/Commander-Genius
if( ${CMAKE_SYSTEM_NAME} MATCHES "Emscripten") set(USE_FLAGS "-sUSE_SDL=2 -sUSE_SDL_IMAGE=2 -sUSE_SDL_TTF=2 -sUSE_SDL_MIXER=2 -sUSE_ZLIB=1 --use-port=zlib -sUSE_OPENSSL=1 -sUSE_CURL=1") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${USE_FLAGS}") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${USE_FLAGS}") set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${USE_FLAGS}") set(CMAKE_EXECUTABLE_SUFFIX .html) else() find_package(SDL2 REQUIRED) find_package(SDL2_IMAGE REQUIRED) find_package(SDL2_TTF REQUIRED) find_package(SDL2_MIXER REQUIRED) find_package(ZLIB REQUIRED) find_package(OpenSSL REQUIRED) target_link_libraries(untitled OpenSSL::SSL) find_package(CURL REQUIRED) endif() include_directories( ${EMSCRIPTEN_ROOT_PATH}/system ${CMAKE_SOURCE_DIR}/include ${SDL2_INCLUDE_DIRS} ${ZLIB_INCLUDE_DIRS} ${OPENSSL_INCLUDE_DIRS} ${CURL_INCLUDE_DIRS} )
Version of emscripten/emsdk: emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 3.1.55 (165133b1cc977f0b9a277e42ef809b823157189c) clang version 19.0.0git (https:/github.com/llvm/llvm-project 6c7805d5d186a6d1263f90b8033ad85e2d2633d7) Target: wasm32-unknown-emscripten Thread model: posix InstalledDir: /root/emsdk/upstream/bin
Failing command line in full: emcmake cmake .. configure: cmake .. -DCMAKE_TOOLCHAIN_FILE=/root/emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -DCMAKE_CROSSCOMPILING_EMULATOR=/root/emsdk/node/16.20.0_64bit/bin/node -- Found Git (/usr/bin/git), executable will get SHA and branch used -- GIT_SHA = 1645a70e8 -- GIT_BRANCH = master -- Setting SYSTEM_DATA_DIR to /usr/share/games -- Setting build type to 'Release' as none was specified. -- Preparing the Build-System for Commander Genius -- Internal Downloader: ON -- Keen engine build enabled -- Refkeen engine build enabled -- Found PkgConfig: /usr/bin/pkg-config (found version "1.8.1") CMake Error at /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:230 (message): Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR) Call Stack (most recent call first): /usr/share/cmake-3.28/Modules/FindPackageHandleStandardArgs.cmake:600 (_FPHSA_FAILURE_MESSAGE) /usr/share/cmake-3.28/Modules/FindZLIB.cmake:199 (FIND_PACKAGE_HANDLE_STANDARD_ARGS) src/engine/unzip/CMakeLists.txt:16 (find_package)