Thank You for your reply. I ran this Pacman project and it built and ran . I read on it and apple has made Macs 32 bit incompatible post OSX 15 could this be the problem. I will try to run this in a windows environment and get back to you On Sunday, December 5, 2021 at 8:38:33 PM UTC+5:30 Floh wrote:
> Just a shot in the dark, but this -isysroot option might cause problems > (and the following Mac-specific option doesn't look right either): > > -isysroot > /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk > > -mmacosx-version-min=10.15 > > Maybe this causes a mixup of C++ stdlib headers in the Emscripten SDK and > the Xcode SDKs. > > Looking at your CMakeLists.txt file I have no idea where those macOS > specific build options would come from though. > > One very obscure problem I've seen in the past is that global environment > variables might pollute your Emscripten build options (e.g. run "env" and > check the output for anything suspicious). I've seen this with the CPATH > variable (however your problem looks different - but maybe there are other > env variables which influence the build). > > To find out whether the problem is in your system setup you could try > building my Pacman clone here: > > > https://github.com/floooh/pacman.c#build-and-run-wasmhtml-version-via-emscripten > > If this also fails, the problem could be in your setup (however this is a > plain C project, which is a much easier case than a C++ project using the > C++ stdlib). > > Cheers, > -Floh. > On Saturday, 4 December 2021 at 14:00:47 UTC+1 [email protected] wrote: > >> I built my opencv libraries for WebAssembly and have a simple program,My >> *Program*: >> #include"opencv2/opencv.hpp" >> #include<iostream> >> #include<emscripten.h> >> >> using namespace std; >> using namespace cv; >> >> int main(){ >> cout<<"Let's see\n"; >> uint8_t uarr[] = {1,2,3,4,5,6,7,8,9,10,11,12}; >> int rows=2; >> int cols=2; >> Mat mat1(rows,cols,CV_8UC3, uarr); >> >> cout<<"Put oil in the car: "<<mat1<<"\n"; >> return 1; >> } >> >> My *CMakeLists.txt:* >> >> cmake_minimum_required( VERSION 3.1 ) >> set( CMAKE_CXX_STANDARD 11 ) >> set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY") >> project( HelloCV ) >> >> # Does not work >> # find_package( OpenCV REQUIRED PATHS third-party/opencv-4.1.0/build_wasm >> NO_DEFAULT_PATH) >> >> # Needed for opencv2/opencv.hpp >> include_directories( /Users/arvindarya/Desktop/aspen/opencv/include ) >> >> # Needed by opencv.hpp for opencv2/opencv_modules.hpp >> include_directories( /Users/arvindarya/Desktop/aspen/opencv/build_wasm ) >> >> # Needed by opencv_modules.hpp for every module >> file( GLOB opencv_include_modules >> "/Users/arvindarya/Desktop/aspen/opencv/modules/*/include" ) >> include_directories( ${opencv_include_modules} ) >> >> # Our hello world executable >> add_executable( hello image.cpp ) >> >> # Link to opencv.js precompiled libraries >> file( GLOB opencv_js >> "/Users/arvindarya/Desktop/aspen/opencv/build_wasm/lib/*.a" ) >> target_link_libraries( hello ${opencv_js} ) >> >> >> I am running >> *emmake cmake *. >> >> and >> *make * >> >> I am getting an *error*: >> >> clang-14: warning: argument unused during compilation: >> '-mmacosx-version-min=10.15' [-Wunused-command-line-argument] >> >> In file included from /Users/arvindarya/Desktop/aspen/image.cpp:3: >> >> In file included from >> /Users/arvindarya/emsdk/upstream/emscripten/cache/sysroot/include/c++/v1/iostream:37: >> >> In file included from >> /Users/arvindarya/emsdk/upstream/emscripten/cache/sysroot/include/c++/v1/ios:215: >> >> /Users/arvindarya/emsdk/upstream/emscripten/cache/sysroot/include/c++/v1/__locale:40:11: >> >> fatal error: 'xlocale.h' file not found >> >> # include <xlocale.h> >> >> ^~~~~~~~~~~ >> >> 1 error generated. >> >> em++: error: '/Users/arvindarya/emsdk/upstream/bin/clang++ -target >> wasm32-unknown-emscripten -DEMSCRIPTEN -fignore-exceptions >> -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm >> -enable-emscripten-sjlj -mllvm -disable-lsr -D__EMSCRIPTEN_major__=3 >> -D__EMSCRIPTEN_minor__=0 -D__EMSCRIPTEN_tiny__=0 -D_LIBCPP_ABI_VERSION=2 >> -Werror=implicit-function-declaration -Xclang -iwithsysroot/include/SDL >> --sysroot=/Users/arvindarya/emsdk/upstream/emscripten/cache/sysroot -Xclang >> -iwithsysroot/include/compat >> -I/Users/arvindarya/Desktop/aspen/opencv/include >> -I/Users/arvindarya/Desktop/aspen/opencv/build_wasm >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/calib3d/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/core/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/dnn/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/features2d/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/flann/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/gapi/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/highgui/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/imgcodecs/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/imgproc/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/ml/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/objdetect/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/photo/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/stitching/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/ts/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/video/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/videoio/include >> -I/Users/arvindarya/Desktop/aspen/opencv/modules/world/include -isysroot >> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk >> >> -mmacosx-version-min=10.15 -std=gnu++11 -MD -MT >> CMakeFiles/hello.dir/image.cpp.o -MF CMakeFiles/hello.dir/image.cpp.o.d -c >> /Users/arvindarya/Desktop/aspen/image.cpp -o >> CMakeFiles/hello.dir/image.cpp.o' failed (returned 1) >> >> make[2]: *** [CMakeFiles/hello.dir/image.cpp.o] Error 1 >> >> make[1]: *** [CMakeFiles/hello.dir/all] Error 2 >> >> make: *** [all] Error 2 >> >> Can anyone help me with this.I want to run a WebAssembly with some opencv >> this is the most basic code. Is something wrong with my CMake. I cannot >> even get <iostream> work there is something seriously wrong. Please help >> me. I have tried emcc --clear-cache it does not work. >> > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/472fdb70-6bfa-4b9c-9efb-27f6683688a1n%40googlegroups.com.
