Avoid constantly rebuilding the whole project.

The buffer definitions seldomly change, yet we rebuild
everything everytime. With this change buffer definitions are only
rebuild with "make generate_bindings". I so far failed to only recompile
the buffer if the bufferschema was modifed, so we'll just try with this.

1 files changed, 3 insertions, 2 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0ae6bcf..d4c305e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,7 @@ include(KDEInstallDirs)
 find_package(Qt5 COMPONENTS REQUIRED Core Widgets Network)
 find_package(KF5 COMPONENTS REQUIRED Async)
 find_package(FlatBuffers REQUIRED)
+add_custom_target(generate_bindings)
 function(generate_flatbuffers _target)
     foreach(fbs ${ARGN})
        message("making ${CMAKE_CURRENT_BINARY_DIR}/${fbs}_generated.h from ${CMAKE_CURRENT_SOURCE_DIR}/${fbs}.fbs")
@@ -27,8 +28,8 @@ function(generate_flatbuffers _target)
             )
        set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${fbs}_generated.h PROPERTIES GENERATED 1)
        string(REGEX REPLACE "/" "_" target_name ${fbs})
-       add_custom_target(${_target}-generate_bindings${target_name} ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${fbs}_generated.h)
-       add_dependencies(${_target} ${_target}-generate_bindings${target_name})
+       add_custom_target(${_target}-generate_bindings${target_name} DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${fbs}_generated.h)
+       add_dependencies(generate_bindings ${_target}-generate_bindings${target_name})
     endforeach(fbs)
 endfunction(generate_flatbuffers)