As a third party maintained fork of the Second Life viewer, which includes Apple Silicon native builds, Megapahit viewer is indexed in the Third Party Viewer Directory.
Most people use a pre-built viewer release to access Second Life. FreeBSD, GNU/Linux, macOS and Windows builds are published on the official website. More experimental viewers, such as release candidates and project viewers, would be detailed on the same page, in-world group notices, or Discord server.
$ git clone git://megapahit.org/viewer.git
$ cd viewer
$ mkdir build-`uname -s|tr '[:upper:]' '[:lower:]'`-`uname -m`
$ cd build-`uname -s|tr '[:upper:]' '[:lower:]'`-`uname -m`
$ sudo pacman -S cmake base-devel python apr-util boost fltk glm glu hunspell minizip nanosvg libnghttp2 openjpeg2 libpipewire sdl2 vlc libvorbis xxhash
$ export LL_BUILD="-O3 -std=c++20 -fPIC -DLL_LINUX=1"
build with FMOD Studio: (register with fmod to get linux package and then place the .tar.gz in ~/Downloads)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=OFF -DUSE_FMODSTUDIO:BOOL=ON -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON -DCMAKE_INSTALL_PREFIX=/usr ../indra
OR, use openal audio: (currently breaks CEF)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON -DCMAKE_INSTALL_PREFIX=/usr ../indra
$ make -j`nproc`
$ makepkg -R
$ sudo pacman -U megapahit-`cat newview/viewer_version.txt|sed 's/\(.*\)\./\1-/'`-`uname -m`.pkg.tar.zst
$ megapahit
$ sudo apt install cmake pkg-config libxml2-utils libaprutil1-dev libboost-fiber-dev libboost-json-dev libboost-program-options-dev libboost-regex-dev libboost-url-dev libexpat1-dev libfltk1.3-dev libfontconfig-dev libfreetype-dev libglu1-mesa-dev libhunspell-dev libjpeg-dev libmeshoptimizer-dev libminizip-dev libnanosvg-dev libnghttp2-dev libopenjp2-7-dev libpipewire-0.3-dev libpng-dev libsdl2-dev libvlc-dev libvlccore-dev libvorbis-dev libxft-dev libxml2-dev libxxhash-dev
$ export LL_BUILD="-O3 -std=c++20 -fPIC -DLL_LINUX=1"
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=OFF -DUSE_FMODSTUDIO:BOOL=ON -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
$ make -j`nproc`
$ cpack -G DEB
$ sudo apt install ./megapahit-`cat newview/viewer_version.txt`-Linux.deb
$ megapahit
$ sudo apt install cmake pkg-config libxml2-utils libalut-dev libaprutil1-dev libboost-fiber-dev libboost-json-dev libboost-program-options-dev libboost-regex-dev libboost-url-dev libexpat1-dev libfltk1.3-dev libfontconfig-dev libfreetype-dev libglu1-mesa-dev libhunspell-dev libjpeg-dev libmeshoptimizer-dev libminizip-dev libnanosvg-dev libnghttp2-dev libopenjp2-7-dev libpipewire-0.3-dev libpng-dev libsdl2-dev libvlc-dev libvlccore-dev libvorbis-dev libxft-dev libxml2-dev libxxhash-dev
$ export LL_BUILD="-O3 -std=c++20 -fPIC -DLL_LINUX=1"
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON -DOPENGL_glu_LIBRARY:FILEPATH=/usr/lib/aarch64-linux-gnu/libGLU.so -DOPENGL_glx_LIBRARY:FILEPATH=/usr/lib/aarch64-linux-gnu/libGLX.so -DOPENGL_opengl_LIBRARY:FILEPATH=/usr/lib/aarch64-linux-gnu/libOpenGL.so ../indra
$ make -j`nproc`
$ cpack -G DEB
$ sudo apt install ./megapahit-`cat newview/viewer_version.txt`-Linux.deb
$ megapahit
$ sudo dnf install cmake gcc-c++ patch patchelf rpm-build perl-FindBin apr-util-devel boost-devel boost-url expat-devel fltk-devel glm-devel mesa-libGLU-devel hunspell-devel minizip-ng-compat-devel libnghttp2-devel nanosvg-devel openjpeg-devel pipewire-devel pulseaudio-libs-devel SDL2-devel vlc-devel libvorbis-devel libXcursor-devel libXfixes-devel libXinerama-devel xxhash-devel
$ export LL_BUILD="-O3 -std=c++20 -fPIC -DLL_LINUX=1"
build with FMOD Studio: (register with fmod to get linux package and then place the .tar.gz in ~/Downloads)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=OFF -DUSE_FMODSTUDIO:BOOL=ON -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
OR, use openal audio: (currently breaks CEF)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
$ make -j`nproc`
$ cpack -G RPM
$ sudo dnf install megapahit-`cat newview/viewer_version.txt`-Linux.rpm
$ megapahit
(Currently does not have CEF or WebRTC Voice)
$ su -
# portmaster devel/cmake devel/pkgconf audio/freealut devel/apr1 devel/boost-libs x11-toolkits/fltk math/glm textproc/hunspell misc/meshoptimizer archivers/minizip graphics/nanosvg www/libnghttp2 graphics/openjpeg devel/sdl20 multimedia/vlc audio/libvorbis devel/xxhash
# exit
$ setenv LL_BUILD "-O3 -std=c++20 -fPIC"
$ setenv PYTHON /usr/local/bin/python3.11
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=OFF -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
$ make -j`nproc`
$ cd ..
$ mv -i indra/newview/app_settings/windlight ..
$ cd -
$ sudo cpack -G FREEBSD
$ sudo pkg add megapahit-`cat newview/viewer_version.txt`-`uname -s`.pkg
$ cd ..
$ mv -i ../windlight indra/newview/app_settings/
$ sudo pkg set -yA 1 freealut apr1 boost-libs fltk hunspell meshoptimizer minizip libnghttp2 openjpeg sdl20 vlc libvorbis
$ megapahit
$ su -
# emerge -a eselect-repository
# eselect repository add megapahit git git://megapahit.org/ebuild.git
# emaint sync -r megapahit
# emerge -a megapahit
# exit
$ megapahit
$ sudo port install cmake pkgconfig freealut +universal apr-util +universal boost188 +universal glm hunspell +universal freetype +universal minizip +universal openjpeg +universal libvorbis +universal xxhashlib
$ export LL_BUILD="-O3 -gdwarf-2 -stdlib=libc++ -mmacosx-version-min=11 -iwithsysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk -std=c++20 -fPIC -DLL_RELEASE=1 -DLL_RELEASE_FOR_DOWNLOAD=1 -DNDEBUG -DPIC -DLL_DARWIN=1"
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=OFF -DCMAKE_INSTALL_PREFIX:PATH=newview/Megapahit.app/Contents/Resources -DCMAKE_OSX_ARCHITECTURES:STRING=`uname -m` -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=11 -DENABLE_SIGNING:BOOL=ON -DSIGNING_IDENTITY:STRING=- ../indra
$ make -j`sysctl -n hw.ncpu`
$ make install
$ open newview/Megapahit.app
$ sudo zypper install cmake gcc-c++ patch patchelf apr-util-devel boost-devel libboost_program_options-devel libboost_url1_89_0 libboost_url1_89_0-devel libboost_context-devel libboost_fiber-devel libboost_filesystem-devel libboost_regex-devel libboost_thread-devel libpng16-devel libxml++-devel libexpat-devel fltk-devel glu-devel hunspell-devel minizip-devel nanosvg-devel libnghttp2-devel openjpeg2-devel pipewire-devel libpulse-devel libSDL2_gfx-1_0-0 libSDL2_gfx-devel sdl2-compat-devel vlc-devel libvorbis-devel xxhash-devel zlib-ng-devel libXrender-devel libXcursor-devel libXfixes-devel libXext-devel libXft-devel libXinerama-devel freetype2-devel fontconfig-devel libjpeg8-devel libjpeg8-devel freealut-devel rpm-build
$ export LL_BUILD="-O3 -std=c++20 -fPIC -DLL_LINUX=1"
build with FMOD Studio: (register with fmod to get linux package and then place the .tar.gz in ~/Downloads)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=OFF -DUSE_FMODSTUDIO:BOOL=ON -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
OR, use openal audio: (currently breaks CEF)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
$ make -j`nproc`
$ cpack -G RPM
$ rpm --addsign megapahit-`cat newview/viewer_version.txt`-Linux.rpm (Set up pgp public key first)
$ sudo rpm -i megapahit-`cat newview/viewer_version.txt`-Linux.rpm
$ megapahit
$ sudo apt install cmake pkg-config libxml2-utils libaprutil1-dev libboost-fiber-dev libboost-json-dev libboost-program-options-dev libboost-regex-dev libboost-url-dev libexpat1-dev libfltk1.3-dev libfontconfig-dev libfreetype-dev libglu1-mesa-dev libhunspell-dev libjpeg-dev libmeshoptimizer-dev libminizip-dev libnanosvg-dev libnghttp2-dev libpipewire-0.3-dev libpng-dev libsdl2-dev libvlc-dev libvlccore-dev libvorbis-dev libxft-dev libxml2-dev libxxhash-dev
$ export LL_BUILD="-O3 -std=c++20 -fPIC -DLL_LINUX=1"
build with FMOD Studio: (register with fmod to get linux package and then place the .tar.gz in ~/Downloads)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=OFF -DUSE_FMODSTUDIO:BOOL=ON -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
OR, use openal audio: (currently breaks CEF)
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON ../indra
$ make -j`nproc`
$ cpack -G DEB
$ sudo apt install ./megapahit-`cat newview/viewer_version.txt`-Linux.deb
$ megapahit
$ vcpkg install python3 freealut apr-util boost curl freetype glm hunspell libjpeg-turbo meshoptimizer minizip nanosvg nghttp2 openjpeg sse2neon libvorbis libxml2[tools] xxhash
$ vcpkg install --allow-unsupported boost-fiber
$ export LL_BUILD="/MD /O2 /Ob2 /std:c++20 /Zc:wchar_t- /Zi /GR /DLL_RELEASE=1 /DLL_RELEASE_FOR_DOWNLOAD=1 /DNDEBUG /D_SECURE_STL=0 /D_HAS_ITERATOR_DEBUGGING=0 /DWIN32 /D_WINDOWS /DLL_WINDOWS=1 /DUNICODE /D_UNICODE /DWINVER=0x0602 /D_WIN32_WINNT=0x0602 /Zc:preprocessor"
$ export PATH="$VCPKG_ROOT/downloads/tools/cmake-3.30.1-windows/cmake-3.30.1-windows-arm64/bin:$VCPKG_ROOT/installed/arm64-windows/tools/libxml2:/c/Program Files (x86)/Microsoft Visual Studio/2022/BuildTools/MSBuild/Current/Bin:$PATH"
$ export PYTHON="$VCPKG_ROOT/installed/arm64-windows/tools/python3/python.exe"
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=OFF -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=OFF -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=Megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON -DCMAKE_TOOLCHAIN_FILE:FILEPATH=$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake -DVS_DISABLE_FATAL_WARNINGS:BOOL=ON ../indra
$ MSBuild.exe Megapahit.sln -p:Configuration=Release
$ cpack -G NSIS
$ start Megapahit-`cat newview/viewer_version.txt`-win64.exe
$ vcpkg install python3 freealut apr-util boost freetype glm hunspell libjpeg-turbo meshoptimizer minizip nanosvg nghttp2 openjpeg libvorbis libxml2[tools] xxhash
$ export LL_BUILD="/MD /O2 /Ob2 /std:c++20 /Zc:wchar_t- /Zi /GR /DLL_RELEASE=1 /DLL_RELEASE_FOR_DOWNLOAD=1 /DNDEBUG /D_SECURE_STL=0 /D_HAS_ITERATOR_DEBUGGING=0 /DWIN32 /D_WINDOWS /DLL_WINDOWS=1 /DUNICODE /D_UNICODE /DWINVER=0x0602 /D_WIN32_WINNT=0x0602"
$ export PATH="$VCPKG_ROOT/downloads/tools/cmake-3.30.1-windows/cmake-3.30.1-windows-i386/bin:$VCPKG_ROOT/installed/x64-windows/tools/libxml2:/c/Program Files (x86)/Microsoft Visual Studio/2022/BuildTools/MSBuild/Current/Bin:$PATH"
$ export PYTHON="$VCPKG_ROOT/installed/x64-windows/tools/python3/python.exe"
$ cmake -DCMAKE_BUILD_TYPE:STRING=Release -DADDRESS_SIZE:STRING=64 -DUSE_OPENAL:BOOL=ON -DUSE_FMODSTUDIO:BOOL=OFF -DENABLE_MEDIA_PLUGINS:BOOL=ON -DLL_TESTS:BOOL=OFF -DNDOF:BOOL=ON -DROOT_PROJECT_NAME:STRING=Megapahit -DVIEWER_CHANNEL:STRING=Megapahit -DVIEWER_BINARY_NAME:STRING=Megapahit -DBUILD_SHARED_LIBS:BOOL=OFF -DINSTALL:BOOL=ON -DPACKAGE:BOOL=ON -DCMAKE_TOOLCHAIN_FILE:FILEPATH=$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake -DVS_DISABLE_FATAL_WARNINGS:BOOL=ON ../indra
$ MSBuild.exe Megapahit.sln -p:Configuration=Release
$ cpack -G NSIS
$ start Megapahit-`cat newview/viewer_version.txt`-win64.exe
Help make Megapahit better! You can get involved with improvements by filing bugs, suggesting enhancements, submitting pull requests and more. See the CONTRIBUTING and the open source portal for details.