Generalized build ID for all subprojects

plugins/editor/CMakeLists.txt

@@ -74,9 +74,7 @@ add_library(sfizz_editor STATIC EXCLUDE_FROM_ALL
     src/editor/layout/about.hpp
     src/editor/utility/vstgui_after.h
     src/editor/utility/vstgui_before.h
-    src/editor/GitBuildId.h
-    ${UI_FILES}
-    "${CMAKE_CURRENT_BINARY_DIR}/git-build-id/GitBuildId.c")
+    ${UI_FILES})
 add_library(sfizz::editor ALIAS sfizz_editor)
 target_include_directories(sfizz_editor PUBLIC "src")
 target_link_libraries(sfizz_editor PUBLIC sfizz::messaging sfizz::plugins-common)
@@ -138,11 +136,5 @@ if(NOT CMAKE_CROSSCOMPILING)
     endforeach()
 endif()
 
-# git build identifier
-add_custom_target(sfizz_editor_git_build_id
-    COMMAND "${CMAKE_COMMAND}"
-            "-DSOURCE_DIR=${PROJECT_SOURCE_DIR}"
-            "-DOUTPUT_FILE=${CMAKE_CURRENT_BINARY_DIR}/git-build-id/GitBuildId.c"
-            "-P" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/GitBuildID.cmake"
-    BYPRODUCTS "git-build-id/GitBuildId.c")
-add_dependencies(sfizz_editor sfizz_editor_git_build_id)
+# Git build identifier
+target_link_libraries(sfizz_editor PRIVATE sfizz-git-build-id)

src/CMakeLists.txt

@@ -351,6 +351,19 @@ endif()
 # Generic library alias
 add_library(sfizz::sfizz ALIAS sfizz_static)
 
+# Git build identifier
+add_custom_target(sfizz-generate-git-build-id
+    COMMAND "${CMAKE_COMMAND}"
+            "-DSOURCE_DIR=${PROJECT_SOURCE_DIR}"
+            "-DOUTPUT_FILE=${PROJECT_BINARY_DIR}/git-build-id/GitBuildId.c"
+            "-P" "${PROJECT_SOURCE_DIR}/cmake/GitBuildID.cmake"
+    BYPRODUCTS "${PROJECT_BINARY_DIR}/git-build-id/GitBuildId.c")
+add_library(sfizz-git-build-id STATIC EXCLUDE_FROM_ALL
+    "sfizz/git-build-id/GitBuildId.h"
+    "${PROJECT_BINARY_DIR}/git-build-id/GitBuildId.c")
+target_include_directories(sfizz-git-build-id PUBLIC "sfizz/git-build-id")
+add_dependencies(sfizz-git-build-id sfizz-generate-git-build-id)
+
 # Preserve generated files (Faust)
 set_directory_properties(PROPERTIES CLEAN_NO_CUSTOM TRUE)
 

src/sfizz/git-build-id/GitBuildId.h

@@ -6,7 +6,9 @@
 
 #pragma once
 
+#if defined(__cplusplus)
 extern "C" {
+#endif
 
 /**
  * @brief Short identifier of the current head commit.
@@ -14,4 +16,6 @@ extern "C" {
  */
 extern const char* GitBuildId;
 
+#if defined(__cplusplus)
 } // extern "C"
+#endif