package: enable Eigen in all packages and CIs.

Not so easy, apparently. Uargh how clueless can people be.
mosra · Mar 12, 2019 · e6db40e · e6db40e
1 parent a9baf78
commit e6db40e
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Showing 20 changed files with 130 additions and 17 deletions.
diff --git a/modules/FindMagnumIntegration.cmake b/modules/FindMagnumIntegration.cmake
@@ -194,8 +194,17 @@ foreach(_component ${MagnumIntegration_FIND_COMPONENTS})
         # Eigen integration library
         elseif(_component STREQUAL Eigen)
             find_package(Eigen3)
+            # We could drop this once we can use at least 3.3.1 (Ubuntu 16.04
+            # has only 3.3 beta, which doesn't have this target yet), however
+            # for Travis and AppVeyor we're using FindEigen3.cmake from the
+            # downloaded sources (because the Eigen3Config.cmake, which
+            # produces the actual targets, is not there -- only
+            # Eigen3Config.cmake.in). See the YML files for an extended rant.
+            # Also, FindEigen3 only defines EIGEN3_INCLUDE_DIR, not even
+            # EIGEN3_INCLUDE_DIRS, so be extra careful.
+            # http://eigen.tuxfamily.org/index.php?title=ChangeLog#Eigen_3.3.1
             set_property(TARGET MagnumIntegration::${_component} APPEND PROPERTY
-                INTERFACE_LINK_LIBRARIES Eigen3::Eigen)
+                INTERFACE_INCLUDE_DIRECTORIES ${EIGEN3_INCLUDE_DIR})
 
             set(_MAGNUMINTEGRATION_${_COMPONENT}_INCLUDE_PATH_NAMES Integration.h)
 

diff --git a/package/archlinux/PKGBUILD b/package/archlinux/PKGBUILD
@@ -6,7 +6,7 @@ pkgdesc="Integration libraries for the Magnum C++11/C++14 graphics engine"
 arch=('i686' 'x86_64')
 url="https://magnum.graphics"
 license=('MIT')
-depends=('magnum' 'bullet' 'glm' 'libdart' 'imgui-src')
+depends=('magnum' 'bullet' 'eigen' 'glm' 'libdart' 'imgui-src')
 makedepends=('cmake' 'ninja')
 options=(!strip)
 provides=('magnum-integration-git')
@@ -23,6 +23,7 @@ build() {
         -DIMGUI_DIR=/opt/imgui \
         -DWITH_BULLET=ON \
         -DWITH_DART=ON \
+        -DWITH_EIGEN=ON \
         -DWITH_GLM=ON \
         -DWITH_IMGUI=ON \
         -DBUILD_TESTS=ON \

diff --git a/package/archlinux/PKGBUILD-coverage b/package/archlinux/PKGBUILD-coverage
@@ -6,7 +6,7 @@ pkgdesc="Integration libraries for the Magnum C++11/C++14 graphics engine (cover
 arch=('i686' 'x86_64')
 url="https://magnum.graphics"
 license=('MIT')
-depends=('magnum' 'bullet' 'libdart' 'imgui-src' 'gcc6')
+depends=('magnum' 'bullet' 'eigen' 'libdart' 'imgui-src' 'gcc6')
 makedepends=('cmake' 'ninja' 'lcov')
 options=(!strip)
 provides=('magnum-integration-git')
@@ -29,6 +29,7 @@ build() {
         -DIMGUI_DIR=/opt/imgui \
         -DWITH_BULLET=ON \
         -DWITH_DART=ON \
+        -DWITH_EIGEN=ON \
         -DWITH_GLM=ON \
         -DWITH_IMGUI=ON \
         -DBUILD_TESTS=ON \

diff --git a/package/archlinux/PKGBUILD-release b/package/archlinux/PKGBUILD-release
@@ -6,7 +6,7 @@ pkgdesc="Integration libraries for the Magnum C++11/C++14 graphics engine (debug
 arch=('i686' 'x86_64')
 url="https://magnum.graphics"
 license=('MIT')
-depends=('magnum' 'bullet' 'libdart' 'imgui-src')
+depends=('magnum' 'bullet' 'eigen' 'libdart' 'imgui-src')
 makedepends=('cmake' 'ninja')
 options=('!strip')
 provides=('magnum-integration-git')
@@ -23,6 +23,7 @@ build() {
         -DIMGUI_DIR=/opt/imgui \
         -DWITH_BULLET=ON \
         -DWITH_DART=ON \
+        -DWITH_EIGEN=ON \
         -DWITH_GLM=ON \
         -DWITH_IMGUI=ON \
         -DBUILD_TESTS=ON \
@@ -39,6 +40,7 @@ build() {
         -DIMGUI_DIR=/opt/imgui \
         -DWITH_BULLET=ON \
         -DWITH_DART=ON \
+        -DWITH_EIGEN=ON \
         -DWITH_GLM=ON \
         -DWITH_IMGUI=ON \
         -DBUILD_TESTS=ON \

diff --git a/package/archlinux/magnum-integration-git/PKGBUILD b/package/archlinux/magnum-integration-git/PKGBUILD
@@ -6,7 +6,7 @@ pkgdesc="Integration libraries for the Magnum C++11/C++14 graphics engine (Git v
 arch=('i686' 'x86_64')
 url="https://magnum.graphics"
 license=('MIT')
-depends=('magnum-git' 'bullet' 'glm')
+depends=('magnum-git' 'bullet' 'eigen' 'glm')
 makedepends=('cmake' 'git')
 provides=('magnum-integration')
 conflicts=('magnum-integration')
@@ -26,6 +26,7 @@ build() {
         -DCMAKE_BUILD_TYPE=Release \
         -DCMAKE_INSTALL_PREFIX=/usr \
         -DWITH_BULLET=ON \
+        -DWITH_EIGEN=ON \
         -DWITH_GLM=ON \
         -DWITH_DART=OFF \
         -DWITH_IMGUI=OFF

diff --git a/package/ci/appveyor-desktop-gles.bat b/package/ci/appveyor-desktop-gles.bat
@@ -63,6 +63,10 @@ cmake --build . || exit /b
 cmake --build . --target install || exit /b
 cd .. && cd ..
 
+rem Unlike ALL OTHER VARIABLES, CMAKE_MODULE_PATH chokes on backwards slashes.
+rem What the hell. This insane snippet converts them.
+set "APPVEYOR_BUILD_FOLDER_FWD=%APPVEYOR_BUILD_FOLDER:\=/%"
+
 rem Build. CMake is not able to find Debug Bullet libraries on their own so I
 rem have to force them in.
 mkdir build && cd build || exit /b
@@ -76,8 +80,11 @@ cmake .. ^
     -DBULLET_DYNAMICS_LIBRARY=%APPVEYOR_BUILD_FOLDER%/bullet/lib/BulletDynamics_Debug.lib ^
     -DBULLET_MATH_LIBRARY=%APPVEYOR_BUILD_FOLDER%/bullet/lib/LinearMath_Debug.lib ^
     -DBULLET_SOFTBODY_LIBRARY=%APPVEYOR_BUILD_FOLDER%/bullet/lib/BulletSoftBody_Debug.lib ^
+    -DCMAKE_MODULE_PATH=%APPVEYOR_BUILD_FOLDER_FWD%/deps/eigen/cmake/ ^
+    -DEIGEN3_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/deps/eigen/ ^
     -DWITH_BULLET=ON ^
     -DWITH_DART=OFF ^
+    -DWITH_EIGEN=ON ^
     -DWITH_GLM=ON ^
     -DWITH_IMGUI=%TARGET_GLES3% ^
     -DWITH_OVR=OFF ^

diff --git a/package/ci/appveyor-desktop-mingw.bat b/package/ci/appveyor-desktop-mingw.bat
@@ -64,20 +64,28 @@ cmake --build . || exit /b
 cmake --build . --target install || exit /b
 cd .. && cd ..
 
+rem Unlike ALL OTHER VARIABLES, CMAKE_MODULE_PATH chokes on backwards slashes.
+rem What the hell. This insane snippet converts them.
+set "APPVEYOR_BUILD_FOLDER_FWD=%APPVEYOR_BUILD_FOLDER:\=/%"
+
 rem Build
 rem For MinGW it's not possible to use the OVR SDK directly, the Oculus Runtime
 rem is needed to be installed, but that's apparently not possible from a
 rem command-line so I'm just disabling it.
 rem https://forums.oculus.com/community/discussion/18303/silent-installation-of-oculus-runtime-windows
+rem For a detailed Eigen rant, see appveyor-desktop.bat
 mkdir build && cd build || exit /b
 cmake .. ^
     -DCMAKE_CXX_FLAGS="--coverage" ^
     -DCMAKE_BUILD_TYPE=Debug ^
     -DCMAKE_INSTALL_PREFIX=%APPVEYOR_BUILD_FOLDER%/deps ^
     -DGLM_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/deps/glm ^
     -DIMGUI_DIR=%APPVEYOR_BUILD_FOLDER%/deps/imgui ^
+    -DCMAKE_MODULE_PATH=%APPVEYOR_BUILD_FOLDER_FWD%/deps/eigen/cmake/ ^
+    -DEIGEN3_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/deps/eigen/ ^
     -DWITH_BULLET=ON ^
     -DWITH_DART=OFF ^
+    -DWITH_EIGEN=ON ^
     -DWITH_GLM=ON ^
     -DWITH_IMGUI=ON ^
     -DWITH_OVR=OFF ^

diff --git a/package/ci/appveyor-desktop.bat b/package/ci/appveyor-desktop.bat
@@ -60,13 +60,26 @@ cmake --build . || exit /b
 cmake --build . --target install || exit /b
 cd .. && cd ..
 
+rem Unlike ALL OTHER VARIABLES, CMAKE_MODULE_PATH chokes on backwards slashes.
+rem What the hell. This insane snippet converts them.
+set "APPVEYOR_BUILD_FOLDER_FWD=%APPVEYOR_BUILD_FOLDER:\=/%"
+
 rem Build. CMake is not able to find Debug Bullet libraries on their own so I
-rem have to force them in.
+rem have to force them in. Eigen3 is header-only but the archive is so stupid
+rem that it's not possible to just use Eigen3Config.cmake, as it's generated
+rem using CMake from Eigen3Config.cmake.in. There's FindEigen3.cmake next to
+rem it, but that doesn't help with ANYTHING AT ALL (like, what about looking
+rem one directory up, eh?! too hard?!) and also defines just EIGEN3_INCLUDE_DIR,
+rem not the Eigen3::Eigen target nor EIGEN3_INCLUDE_DIRS. Now I get why people
+rem hate CMake. It's because project rem maintainers are absolutely clueless on
+rem how to write usable find scripts with it.
 mkdir build && cd build || exit /b
 cmake .. ^
     -DCMAKE_BUILD_TYPE=Debug ^
     -DCMAKE_INSTALL_PREFIX=%APPVEYOR_BUILD_FOLDER%/deps ^
     -DCMAKE_PREFIX_PATH=%APPVEYOR_BUILD_FOLDER%/bullet ^
+    -DCMAKE_MODULE_PATH=%APPVEYOR_BUILD_FOLDER_FWD%/deps/eigen/cmake/ ^
+    -DEIGEN3_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/deps/eigen/ ^
     -DGLM_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/deps/glm ^
     -DIMGUI_DIR=%APPVEYOR_BUILD_FOLDER%/deps/imgui ^
     -DBULLET_COLLISION_LIBRARY=%APPVEYOR_BUILD_FOLDER%/bullet/lib/BulletCollision_Debug.lib ^
@@ -75,6 +88,7 @@ cmake .. ^
     -DBULLET_SOFTBODY_LIBRARY=%APPVEYOR_BUILD_FOLDER%/bullet/lib/BulletSoftBody_Debug.lib ^
     -DWITH_BULLET=ON ^
     -DWITH_DART=OFF ^
+    -DWITH_EIGEN=ON ^
     -DWITH_GLM=ON ^
     -DWITH_IMGUI=ON ^
     -DWITH_OVR=ON ^

diff --git a/package/ci/appveyor-rt.bat b/package/ci/appveyor-rt.bat
@@ -68,7 +68,11 @@ cmake .. ^
 cmake --build . --config Release --target install -- /m /v:m || exit /b
 cd .. && cd ..
 
-rem Crosscompile
+rem Unlike ALL OTHER VARIABLES, CMAKE_MODULE_PATH chokes on backwards slashes.
+rem What the hell. This insane snippet converts them.
+set "APPVEYOR_BUILD_FOLDER_FWD=%APPVEYOR_BUILD_FOLDER:\=/%"
+
+rem Crosscompile. For a detailed Eigen rant, see appveyor-desktop.bat.
 mkdir build-rt && cd build-rt || exit /b
 cmake .. ^
     -DCMAKE_BUILD_TYPE=Release ^
@@ -79,8 +83,11 @@ cmake .. ^
     -DOPENGLES2_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/angle/include ^
     -DOPENGLES3_LIBRARY=%APPVEYOR_BUILD_FOLDER%/angle/winrt/10/src/Release_x64/lib/libGLESv2.lib ^
     -DOPENGLES3_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/angle/include ^
+    -DCMAKE_MODULE_PATH=%APPVEYOR_BUILD_FOLDER_FWD%/deps/eigen/cmake/ ^
+    -DEIGEN3_INCLUDE_DIR=%APPVEYOR_BUILD_FOLDER%/deps/eigen/ ^
     -DWITH_BULLET=OFF ^
     -DWITH_DART=OFF ^
+    -DWITH_EIGEN=ON ^
     -DWITH_GLM=ON ^
     -DWITH_IMGUI=%TARGET_GLES3% ^
     -DWITH_OVR=OFF ^

diff --git a/package/ci/appveyor.yml b/package/ci/appveyor.yml
@@ -61,6 +61,10 @@ install:
 - IF "%TARGET_GLES2%" == "ON" set TARGET_GLES3=OFF
 - IF "%TARGET_GLES2%" == "OFF" set TARGET_GLES3=ON
 
+# Eigen
+- IF NOT EXIST %APPVEYOR_BUILD_FOLDER%\3.3.7.tar.bz2 appveyor DownloadFile http://bitbucket.org/eigen/eigen/get/3.3.7.tar.bz2
+- 7z x 3.3.7.tar.bz2 -o%APPVEYOR_BUILD_FOLDER%\deps && 7z x %APPVEYOR_BUILD_FOLDER%\deps\3.3.7.tar -o%APPVEYOR_BUILD_FOLDER%\deps && ren %APPVEYOR_BUILD_FOLDER%\deps\eigen-eigen-323c052e1731 eigen
+
 # GLM
 - IF NOT EXIST %APPVEYOR_BUILD_FOLDER%\0.9.9.0.zip appveyor DownloadFile https://github.com/g-truc/glm/archive/0.9.9.0.zip
 - 7z x 0.9.9.0.zip -o%APPVEYOR_BUILD_FOLDER%\deps && ren %APPVEYOR_BUILD_FOLDER%\deps\glm-0.9.9.0 glm
@@ -83,4 +87,5 @@ cache:
 - ovr_sdk_win_1.26.0_public_minimal.zip -> package/ci/appveyor-cache-reset.txt
 - 2.86.1.zip -> package/ci/appveyor-cache-reset.txt
 - 0.9.9.0.zip -> package/ci/appveyor-cache-reset.txt
+- 3.3.7.tar.bz2 -> package/ci/appveyor-cache-reset.txt
 - imgui-1.67.zip -> package/ci/appveyor-cache-reset.txt
diff --git a/package/ci/travis-android-arm.sh b/package/ci/travis-android-arm.sh
@@ -65,7 +65,15 @@ cmake .. \
 ninja install
 cd ../..
 
-# Crosscompile
+# Crosscompile. There's extra crazy stuff for Eigen3. It's header-only but the
+# archive is so stupid that it's not possible to just use Eigen3Config.cmake,
+# as it's generated using CMake from Eigen3Config.cmake.in. There's
+# FindEigen3.cmake next to it, but that doesn't help with ANYTHING AT ALL
+# (like, what about looking one directory up, eh?! too hard?!) and also defines
+# just EIGEN3_INCLUDE_DIR, not the Eigen3::Eigen target nor
+# EIGEN3_INCLUDE_DIRS. Now I get why people hate CMake. It's because project
+# maintainers are absolutely clueless on how to write usable find scripts with
+# it.
 mkdir build-android-arm && cd build-android-arm
 cmake .. \
     -DCMAKE_ANDROID_NDK=$TRAVIS_BUILD_DIR/android-ndk-r16b \
@@ -78,10 +86,13 @@ cmake .. \
     -DCORRADE_RC_EXECUTABLE=$HOME/deps-native/bin/corrade-rc \
     -DCMAKE_INSTALL_PREFIX=$HOME/deps \
     -DCMAKE_FIND_ROOT_PATH=$HOME/deps \
+    -DCMAKE_MODULE_PATH=$HOME/eigen/cmake/ \
+    -DEIGEN3_INCLUDE_DIR=$HOME/eigen/ \
     -DGLM_INCLUDE_DIR=$HOME/glm \
     -DIMGUI_DIR=$HOME/imgui \
     -DWITH_BULLET=OFF \
     -DWITH_DART=OFF \
+    -DWITH_EIGEN=ON \
     -DWITH_GLM=ON \
     -DWITH_IMGUI=$TARGET_GLES3 \
     -DWITH_OVR=OFF \

diff --git a/package/ci/travis-desktop-gles.sh b/package/ci/travis-desktop-gles.sh
@@ -61,6 +61,7 @@ cmake .. \
     -DCMAKE_INSTALL_RPATH=$HOME/swiftshader \
     -DWITH_BULLET=ON \
     -DWITH_DART=OFF \
+    -DWITH_EIGEN=ON \
     -DWITH_GLM=ON \
     -DWITH_IMGUI=$TARGET_GLES3 \
     -DWITH_OVR=OFF \

diff --git a/package/ci/travis-desktop.sh b/package/ci/travis-desktop.sh
@@ -71,6 +71,7 @@ cmake .. \
     -DCMAKE_BUILD_TYPE=Debug \
     -DWITH_BULLET=ON \
     -DWITH_DART=$WITH_DART \
+    -DWITH_EIGEN=ON \
     -DWITH_GLM=ON \
     -DWITH_IMGUI=ON \
     -DWITH_OVR=OFF \

diff --git a/package/ci/travis-emscripten.sh b/package/ci/travis-emscripten.sh
@@ -90,7 +90,15 @@ cmake .. \
 ninja install
 cd ../..
 
-# Crosscompile
+# Crosscompile. There's extra crazy stuff for Eigen3. It's header-only but the
+# archive is so stupid that it's not possible to just use Eigen3Config.cmake,
+# as it's generated using CMake from Eigen3Config.cmake.in. There's
+# FindEigen3.cmake next to it, but that doesn't help with ANYTHING AT ALL
+# (like, what about looking one directory up, eh?! too hard?!) and also defines
+# just EIGEN3_INCLUDE_DIR, not the Eigen3::Eigen target nor
+# EIGEN3_INCLUDE_DIRS. Now I get why people hate CMake. It's because project
+# maintainers are absolutely clueless on how to write usable find scripts with
+# it.
 mkdir build-emscripten && cd build-emscripten
 cmake .. \
     -DCORRADE_RC_EXECUTABLE=$HOME/deps-native/bin/corrade-rc \
@@ -99,12 +107,15 @@ cmake .. \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_CXX_FLAGS_RELEASE="-DNDEBUG -O1" \
     -DCMAKE_EXE_LINKER_FLAGS_RELEASE="-O1" \
+    -DCMAKE_MODULE_PATH=$HOME/eigen/cmake/ \
+    -DEIGEN3_INCLUDE_DIR=$HOME/eigen/ \
     -DCMAKE_INSTALL_PREFIX=$HOME/deps \
     -DCMAKE_FIND_ROOT_PATH=$HOME/deps \
     -DGLM_INCLUDE_DIR=$HOME/glm \
     -DIMGUI_DIR=$HOME/imgui \
     -DWITH_BULLET=ON \
     -DWITH_DART=OFF \
+    -DWITH_EIGEN=ON \
     -DWITH_GLM=ON \
     -DWITH_IMGUI=$TARGET_GLES3 \
     -DWITH_OVR=OFF \

diff --git a/package/ci/travis-ios-simulator.sh b/package/ci/travis-ios-simulator.sh
@@ -62,18 +62,29 @@ cmake .. \
 set -o pipefail && cmake --build . --config Release --target install | xcpretty
 cd ../..
 
-# Crosscompile
+# Crosscompile. There's extra crazy stuff for Eigen3. It's header-only but the
+# archive is so stupid that it's not possible to just use Eigen3Config.cmake,
+# as it's generated using CMake from Eigen3Config.cmake.in. There's
+# FindEigen3.cmake next to it, but that doesn't help with ANYTHING AT ALL
+# (like, what about looking one directory up, eh?! too hard?!) and also defines
+# just EIGEN3_INCLUDE_DIR, not the Eigen3::Eigen target nor
+# EIGEN3_INCLUDE_DIRS. Now I get why people hate CMake. It's because project
+# maintainers are absolutely clueless on how to write usable find scripts with
+# it.
 mkdir build-ios && cd build-ios
 cmake .. \
     -DCMAKE_TOOLCHAIN_FILE=../toolchains/generic/iOS.cmake \
     -DCMAKE_OSX_SYSROOT=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk \
     -DCMAKE_OSX_ARCHITECTURES="x86_64" \
+    -DCMAKE_MODULE_PATH=$HOME/eigen/cmake/ \
+    -DEIGEN3_INCLUDE_DIR=$HOME/eigen/ \
     -DCORRADE_RC_EXECUTABLE=$HOME/deps-native/bin/corrade-rc \
     -DCMAKE_INSTALL_PREFIX=$HOME/deps \
     -DGLM_INCLUDE_DIR=$HOME/glm \
     -DIMGUI_DIR=$HOME/imgui \
     -DWITH_BULLET=OFF \
     -DWITH_DART=OFF \
+    -DWITH_EIGEN=ON \
     -DWITH_GLM=ON \
     -DWITH_IMGUI=$TARGET_GLES3 \
     -DWITH_OVR=OFF \

diff --git a/package/ci/travis.yml b/package/ci/travis.yml
@@ -8,6 +8,7 @@ addons:
     # Needed for some snippets
     - libsdl2-dev
     - libbullet-dev
+    - libeigen3-dev
     - libglm-dev
 
 matrix:
@@ -48,6 +49,7 @@ matrix:
         # Needed for some snippets
         - libsdl2-dev
         - libbullet-dev
+        - libeigen3-dev
         - libglm-dev
   - language: cpp
     os: linux
@@ -117,6 +119,7 @@ matrix:
       apt:
         packages:
         - ninja-build
+        - libeigen3-dev
     android:
       components:
       - build-tools-22.0.1
@@ -135,6 +138,7 @@ matrix:
       apt:
         packages:
         - ninja-build
+        - libeigen3-dev
     android:
       components:
       - build-tools-22.0.1
@@ -152,6 +156,7 @@ notifications:
 cache:
   directories:
   - $HOME/cmake
+  - $HOME/eigen
   - $HOME/glm
   - $HOME/swiftshader
   - $HOME/imgui
@@ -181,12 +186,13 @@ install:
 - if [ "$TRAVIS_OS_NAME" == "osx" ] && [ "$TARGET" == "ios-simulator" ]; then gem install xcpretty; fi
 - if [ "$TRAVIS_OS_NAME" == "osx" ] && [ "$TARGET" == "emscripten" ]; then HOMEBREW_NO_AUTO_UPDATE=1 brew install emscripten && export LLVM=/usr/local/opt/emscripten/libexec/llvm/bin && emcc; fi
 
-# SDL2 (for snippets), Bullet, GLM & DART
-- if [ "$TRAVIS_OS_NAME" == "osx" ] && [ "$TARGET" == "desktop" ]; then HOMEBREW_NO_AUTO_UPDATE=1 brew install sdl2 bullet glm dartsim; fi
+# SDL2 (for snippets), Bullet, Eigen, GLM & DART for native builds
+- if [ "$TRAVIS_OS_NAME" == "osx" ] && [ "$TARGET" == "desktop" ]; then HOMEBREW_NO_AUTO_UPDATE=1 brew install sdl2 bullet eigen glm dartsim; fi
 
-# GLM for non-native builds. Put into a separate folder so it can be used
-# without including the global native system dir.
+# GLM and Eigen for non-native builds. Put into a separate folder so it can be
+# used without including the global native system dir.
 - if ( [ "$TARGET" == "android" ] || [ "$TARGET" == "ios-simulator" ] || [ "$TARGET" == "emscripten" ] ) && [ ! -e "$HOME/glm/detail" ]; then cd $HOME ; wget -nc --no-check-certificate https://github.com/g-truc/glm/archive/0.9.9.0.tar.gz && mkdir -p glm && cd glm && tar --strip-components=1 -xzf ../0.9.9.0.tar.gz && cd $TRAVIS_BUILD_DIR ; fi
+- if ( [ "$TARGET" == "android" ] || [ "$TARGET" == "ios-simulator" ] || [ "$TARGET" == "emscripten" ] ) && [ ! -e "$HOME/eigen/Eigen" ]; then cd $HOME ; wget -nc --no-check-certificate http://bitbucket.org/eigen/eigen/get/3.3.7.tar.gz && mkdir -p eigen && cd eigen && tar --strip-components=1 -xzf ../3.3.7.tar.gz && cd $TRAVIS_BUILD_DIR ; fi
 
 # DART and its dependencies. Temporarily disabled on Linux because of GCC 4 and
 # 5 ABI mismatch on 16.04, https://github.com/dartsim/dart/issues/967#issuecomment-469075835