1 files changed, 99 insertions, 0 deletions
diff --git a/cmake/modules/buildtools/FindFlatC.cmake b/cmake/modules/buildtools/FindFlatC.cmake
new file mode 100644
index 0000000..bca17e8
--- /dev/null
+++ b/cmake/modules/buildtools/FindFlatC.cmake
@@ -0,0 +1,99 @@
+# FindFlatC
+# --------
+# Find the FlatBuffers schema compiler
+#
+# This will define the following variables:
+#
+# FLATBUFFERS_FLATC_EXECUTABLE_FOUND - system has FlatBuffers compiler
+# FLATBUFFERS_FLATC_EXECUTABLE - the flatc compiler executable
+# FLATBUFFERS_FLATC_VERSION - the flatc compiler version
+#
+# and the following imported targets:
+#
+#   flatbuffers::flatc - The FlatC compiler
+
+if(NOT TARGET flatbuffers::flatc)
+  include(cmake/scripts/common/ModuleHelpers.cmake)
+
+  # Check for existing FLATC.
+  find_program(FLATBUFFERS_FLATC_EXECUTABLE NAMES flatc
+                                            HINTS ${NATIVEPREFIX}/bin)
+
+  if(FLATBUFFERS_FLATC_EXECUTABLE)
+    execute_process(COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}" --version
+                    OUTPUT_VARIABLE FLATBUFFERS_FLATC_VERSION
+                    OUTPUT_STRIP_TRAILING_WHITESPACE)
+    string(REGEX MATCH "[^\n]* version [^\n]*" FLATBUFFERS_FLATC_VERSION "${FLATBUFFERS_FLATC_VERSION}")
+    string(REGEX REPLACE ".* version (.*)" "\\1" FLATBUFFERS_FLATC_VERSION "${FLATBUFFERS_FLATC_VERSION}")
+  endif()
+
+  set(MODULE_LC flatbuffers)
+  # Duplicate URL may exist from FindFlatbuffers.cmake
+  # unset otherwise it thinks we are providing a local file location and incorrect concatenation happens
+  unset(FLATBUFFERS_URL)
+  SETUP_BUILD_VARS()
+
+  if(NOT FLATBUFFERS_FLATC_EXECUTABLE OR (ENABLE_INTERNAL_FLATBUFFERS AND NOT "${FLATBUFFERS_FLATC_VERSION}" VERSION_EQUAL "${FLATBUFFERS_VER}"))
+
+    # Override build type detection and always build as release
+    set(FLATBUFFERS_BUILD_TYPE Release)
+
+    if(NATIVEPREFIX)
+      set(INSTALL_DIR "${NATIVEPREFIX}/bin")
+      set(FLATBUFFERS_INSTALL_PREFIX ${NATIVEPREFIX})
+    else()
+      set(INSTALL_DIR "${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/bin")
+      set(FLATBUFFERS_INSTALL_PREFIX ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR})
+    endif()
+
+    set(CMAKE_ARGS -DFLATBUFFERS_CODE_COVERAGE=OFF
+                   -DFLATBUFFERS_BUILD_TESTS=OFF
+                   -DFLATBUFFERS_INSTALL=ON
+                   -DFLATBUFFERS_BUILD_FLATLIB=OFF
+                   -DFLATBUFFERS_BUILD_FLATC=ON
+                   -DFLATBUFFERS_BUILD_FLATHASH=OFF
+                   -DFLATBUFFERS_BUILD_GRPCTEST=OFF
+                   -DFLATBUFFERS_BUILD_SHAREDLIB=OFF)
+
+    # Set host build info for buildtool
+    if(EXISTS "${NATIVEPREFIX}/share/Toolchain-Native.cmake")
+      set(FLATBUFFERS_TOOLCHAIN_FILE "${NATIVEPREFIX}/share/Toolchain-Native.cmake")
+    endif()
+
+    if(WIN32 OR WINDOWS_STORE)
+      # Make sure we generate for host arch, not target
+      set(FLATBUFFERS_GENERATOR_PLATFORM CMAKE_GENERATOR_PLATFORM ${HOSTTOOLSET})
+      set(WIN_DISABLE_PROJECT_FLAGS 1)
+    endif()
+
+    set(FLATBUFFERS_FLATC_EXECUTABLE ${INSTALL_DIR}/flatc CACHE INTERNAL "FlatBuffer compiler")
+
+    set(BUILD_NAME flatc)
+    set(BUILD_BYPRODUCTS ${FLATBUFFERS_FLATC_EXECUTABLE})
+    set(FLATBUFFERS_FLATC_VERSION ${FLATBUFFERS_VER})
+
+    BUILD_DEP_TARGET()
+  endif()
+
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(FlatC
+                                    REQUIRED_VARS FLATBUFFERS_FLATC_EXECUTABLE
+                                    VERSION_VAR FLATBUFFERS_FLATC_VERSION)
+
+  if(FLATC_FOUND)
+
+    add_library(flatbuffers::flatc UNKNOWN IMPORTED)
+    set_target_properties(flatbuffers::flatc PROPERTIES
+                                             FOLDER "External Projects")
+
+    if(TARGET flatc)
+      add_dependencies(flatbuffers::flatc flatc)
+    endif()
+  else()
+    if(FLATC_FIND_REQUIRED)
+      message(FATAL_ERROR "Flatc compiler not found.")
+    endif()
+  endif()
+
+  mark_as_advanced(FLATBUFFERS_FLATC_EXECUTABLE)
+endif()