Building flashlight Examples

Examples included with flashlight can be built either in-source (in a build directory) or out-of-source, after installing, as a standalone build.

In the make install step, examples are placed in <prefix>/share/flashlight/examples, where <prefix> is the CMAKE_INSTALL_PREFIX (on Linux, this is typically /usr/local by default).

Building In-Source

Building in-source is simple; examples are built by default. Binaries are placed in build/examples.

To disable building examples in source, simply make sure FL_BUILD_EXAMPLES is OFF. Even though examples won't be built, the install step will still place source files in examples/ in the install target directory mentioned above.

Building as a Standalone Project

Examples can also be built as standalone projects outside of the build directory. After the installation step, simply copy the example source path to a suitable directory, and build:

mkdir -p ~/flashlight-examples
cp -r <prefix>/share/flashlight/examples ~/flashlight-examples
mkdir build && cd build
cmake ..
make -j4  # (or any number of threads)

If flashlight (or ArrayFire) were built and installed and installed with a custom CMAKE_INSTALL_PREFIX, then -Dflashlight_DIR (and DArrayFire_DIR) need to be set to the directory containing flashlightConfig.cmake (and ArrayFireConfig.cmake), so the targets can properly be imported. These flags must be passed to cmake when building.