meta: replace cmake mono-build system with a custom build co-ordinator

every system component now has its own self-contained build system, and a
seed file describing the component and its build system and dependencies.

a new tool, meadow, collects and uses these seed files to build the
components into a full system. meadow also manages the target system root
and a host prefix where toolchain tools are installed to.

the build system has also been updated to use a new $ARCH-rosetta-gcc
compiler, and the patches files necessary to build it have been
added to toolchain/cross-compiler.

lib/liblaunch/CMakeLists.txt

@@ -1,25 +1,25 @@
+cmake_minimum_required(VERSION 3.31)
+project(launch C ASM)
+
 file(GLOB sources
 	${CMAKE_CURRENT_SOURCE_DIR}/*.c)
 file(GLOB headers
 	${CMAKE_CURRENT_SOURCE_DIR}/include/launch.h
 	${CMAKE_CURRENT_SOURCE_DIR}/*.h)
+file(GLOB public_headers
+	${CMAKE_CURRENT_SOURCE_DIR}/include/launch.h)
 
 set(public_include_dirs
 	${CMAKE_CURRENT_SOURCE_DIR}/include)
 
-rosetta_add_library(
-	NAME liblaunch SHARED STATIC
-	PUBLIC_INCLUDE_DIRS ${public_include_dirs}
-	SOURCES ${sources}
-	HEADERS ${headers})
+if (LAUNCH_STATIC)
+	add_library(launch STATIC ${sources} ${headers})
+	target_link_libraries(launch PRIVATE librosetta libmagenta libc-core)
+else ()
+	add_library(launch SHARED ${sources} ${headers})
+	target_link_libraries(launch PRIVATE rosetta magenta c)
+endif ()
 
-sysroot_add_library(
-	NAME liblaunch
-	HEADER_DIR /usr/include
-	LIB_DIR /usr/lib)
-bsp_add_library(
-	NAME liblaunch
-	LIB_DIR /usr/lib)
-
-target_link_libraries(liblaunch-static PRIVATE librosetta libmagenta libc-core)
-target_link_libraries(liblaunch PRIVATE librosetta libmagenta libc)
+target_include_directories(launch PUBLIC include)
+install(TARGETS launch)
+install(FILES ${public_headers} DESTINATION include)

lib/liblaunch/liblaunch-static.seed

@@ -0,0 +1,16 @@
+[seed]
+name = 'liblaunch-static'
+
+[dependency]
+no_standard_dependencies = true
+seeds = [
+	'librosetta',
+	'libmagenta',
+	'libc-core'
+]
+
+[build]
+build_system = 'cmake'
+configure_args = [ '-DLAUNCH_STATIC=TRUE' ]
+
+# vim: ft=toml

lib/liblaunch/liblaunch.seed

@@ -0,0 +1,7 @@
+[seed]
+name = 'liblaunch'
+
+[build]
+build_system = 'cmake'
+
+# vim: ft=toml