From c14c2e55007d35cda732068e251301467ca1d66c Mon Sep 17 00:00:00 2001
From: Max Wash <mbswash@gmail.com>
Date: Thu, 31 Oct 2024 19:35:18 +0000
Subject: [PATCH] cmake: FindBluelib now specifies inter-module dependencies
 for module interface targets

---
 cmake/FindBluelib.cmake | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/cmake/FindBluelib.cmake b/cmake/FindBluelib.cmake
index 72780e2..95fe532 100644
--- a/cmake/FindBluelib.cmake
+++ b/cmake/FindBluelib.cmake
@@ -95,6 +95,7 @@ find_package_handle_standard_args(Bluelib
 	REQUIRED_VARS ${required_vars})
 
 if (Bluelib_FOUND)
+	set(created_targets)
 	foreach (component ${components})
 		string(TOLOWER ${component} header_name)
 		set(lib_name ${header_name}${_lib_suffix})
@@ -108,6 +109,45 @@ if (Bluelib_FOUND)
 			set_target_properties(Bluelib::${component} PROPERTIES
 				IMPORTED_LINK_INTERFACE_LANGUAGES "C"
 				IMPORTED_LOCATION "${Bluelib_${component}_LIBRARY}")
+			set(created_targets ${created_targets} ${component})
+		endif ()
+	endforeach (component)
+
+	foreach (component ${created_targets})
+		if ("${component}" STREQUAL "Object")
+			if (NOT TARGET Bluelib::Core)
+				message(FATAL_ERROR "Bluelib: Module 'Object' depends on 'Core', which was not specified in find_package()")
+			endif ()
+
+			target_link_libraries(Bluelib::Object INTERFACE Bluelib::Core)
+		endif ()
+
+		if ("${component}" STREQUAL "Term")
+			if (NOT TARGET Bluelib::Core)
+				message(FATAL_ERROR "Bluelib: Module 'Term' depends on 'Core', which was not specified in find_package()")
+			endif ()
+
+			if (NOT TARGET Bluelib::Object)
+				message(FATAL_ERROR "Bluelib: Module 'Term' depends on 'Object', which was not specified in find_package()")
+			endif ()
+
+			target_link_libraries(Bluelib::Term INTERFACE Bluelib::Core Bluelib::Object)
+		endif ()
+
+		if ("${component}" STREQUAL "Cmd")
+			if (NOT TARGET Bluelib::Core)
+				message(FATAL_ERROR "Bluelib: Module 'Cmd' depends on 'Core', which was not specified in find_package()")
+			endif ()
+
+			if (NOT TARGET Bluelib::Object)
+				message(FATAL_ERROR "Bluelib: Module 'Cmd' depends on 'Object', which was not specified in find_package()")
+			endif ()
+
+			if (NOT TARGET Bluelib::Term)
+				message(FATAL_ERROR "Bluelib: Module 'Cmd' depends on 'Term', which was not specified in find_package()")
+			endif ()
+
+			target_link_libraries(Bluelib::Cmd INTERFACE Bluelib::Core Bluelib::Object Bluelib::Term)
 		endif ()
 	endforeach (component)
 endif()