package/ci: make tests using static plugins work again.

There's no dynamic Magnum library to autodetect the location from, so we
have to supply the hardcoded path explicitly.

package/ci/appveyor-desktop.bat

@@ -42,7 +42,7 @@ cmake .. ^
     -DCMAKE_INSTALL_PREFIX=%APPVEYOR_BUILD_FOLDER%/deps ^
     -DCMAKE_PREFIX_PATH=%APPVEYOR_BUILD_FOLDER%/SDL ^
     -DBUILD_DEPRECATED=OFF ^
-    -DBUILD_STATIC=%BUILD_STATIC% ^
+    -DBUILD_STATIC=%BUILD_STATIC% %STATIC_PLUGIN_PATH% ^
     -DWITH_AUDIO=OFF ^
     -DWITH_DEBUGTOOLS=OFF ^
     -DWITH_GL=ON ^

package/ci/appveyor.yml

@@ -53,6 +53,9 @@ install:
 - pip3 install coverage codecov
 
 - IF NOT "%BUILD_STATIC%" == "ON" set BUILD_STATIC=OFF
+# The fugly \=/ magic is to replace backward slashes with forward so CMake
+# doesn't treat those as escape characters
+- IF "%BUILD_STATIC%" == "ON" set "STATIC_PLUGIN_PATH=-DMAGNUM_PLUGINS_DIR=%APPVEYOR_BUILD_FOLDER:\=/%/deps/bin/magnum"
 
 # pybind11. Built in the CI script.
 - IF NOT EXIST %APPVEYOR_BUILD_FOLDER%\v2.3.0.zip appveyor DownloadFile https://github.com/pybind/pybind11/archive/v2.3.0.zip

package/ci/travis-desktop.sh

@@ -27,7 +27,7 @@ cmake .. \
     -DCMAKE_INSTALL_RPATH=$HOME/deps/lib \
     -DCMAKE_BUILD_TYPE=Release \
     -DBUILD_DEPRECATED=OFF \
-    -DBUILD_STATIC=$BUILD_STATIC \
+    -DBUILD_STATIC=$BUILD_STATIC $STATIC_PLUGIN_PATH \
     -DWITH_AUDIO=OFF \
     -DWITH_DEBUGTOOLS=OFF \
     -DWITH_GL=ON \

package/ci/travis.yml

@@ -106,6 +106,7 @@ cache:
 install:
 - if [ "$TRAVIS_OS_NAME" == "linux" ]; then export CXX=g++-4.8; fi
 - if [ "$BUILD_STATIC" != "ON" ]; then export BUILD_STATIC=OFF; fi
+- if [ "$BUILD_STATIC" == "ON" ]; then export STATIC_PLUGIN_PATH=-DMAGNUM_PLUGINS_DIR=$HOME/deps/lib/magnum; fi
 - if [ "$TRAVIS_OS_NAME" == "linux" ] && ( [ "$TARGET" == "desktop" ] || [ "$TARGET" == "desktop-sanitizers" ] ); then export PLATFORM_GL_API=GLX; fi
 - if [ "$TRAVIS_OS_NAME" == "linux" ] && [ "$TARGET" == "desktop-gles" ]; then export PLATFORM_GL_API=EGL; fi
 # Download CMake 3.4.3 to ensure we're still compatible with it (Travis has