Can you please confirm this I have this program the very basic program I can find and the CMakeLists.txt to go with it. I cannot get it to compile to WASM using Emscripten. Can you please check out and tell me if it gets made because I have done everything right I think. The CMake and the Make part is giving me trouble. Can you please please check it out. I have spent weeks on this issue and I would be forever grateful if you could check it out. I just don't know about emmake and from what I have gathered this should work. On Monday, December 6, 2021 at 2:15:32 PM UTC+5:30 Arvind Arya wrote:
> > 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/33a2f8c2-88c7-47ec-be63-cf83e9ea24b3n%40googlegroups.com.
