BuildSystem: link libraries when they change

This also fixed the need for manual linkin on firt build

BAN/CMakeLists.txt

@@ -20,4 +20,5 @@ add_dependencies(ban headers libc-install)
 add_custom_target(ban-install
 	COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/libban.a ${BANAN_LIB}/
 	DEPENDS ban
+	BYPRODUCTS ${BANAN_LIB}/libban.a
 )

libc/CMakeLists.txt

@@ -26,6 +26,7 @@ add_dependencies(libc headers crt0)
 add_custom_target(libc-install
 	COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/libc.a ${BANAN_LIB}/
 	DEPENDS libc
+	BYPRODUCTS ${BANAN_LIB}/libc.a
 )
 
 set(CMAKE_STATIC_LIBRARY_PREFIX "")

userspace/CMakeLists.txt

@@ -17,6 +17,7 @@ add_custom_target(userspace)
 add_custom_target(userspace-install DEPENDS userspace)
 
 foreach(USERSPACE_PROJECT ${USERSPACE_PROJECTS})
+	target_link_options(${USERSPACE_PROJECT} PUBLIC -nodefaultlibs)
 	add_dependencies(userspace ${USERSPACE_PROJECT})
 	add_dependencies(userspace-install ${USERSPACE_PROJECT}-install)
 endforeach()

userspace/Shell/CMakeLists.txt

@@ -8,10 +8,7 @@ set(SOURCES
 
 add_executable(Shell ${SOURCES})
 target_compile_options(Shell PUBLIC -O2 -g)
-add_dependencies(Shell libc-install ban-install)
-target_link_options(Shell PUBLIC -nodefaultlibs)
-target_link_libraries(Shell PUBLIC ${BANAN_LIB}/libc.a)
-target_link_libraries(Shell PUBLIC ${BANAN_LIB}/libban.a)
+target_link_libraries(Shell PUBLIC libc ban)
 
 add_custom_target(Shell-install
 	COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/Shell ${BANAN_BIN}/

userspace/cat/CMakeLists.txt

@@ -8,8 +8,7 @@ set(SOURCES
 
 add_executable(cat ${SOURCES})
 target_compile_options(cat PUBLIC -O2 -g)
-add_dependencies(cat libc-install)
-target_link_options(cat PUBLIC -nodefaultlibs -lc)
+target_link_libraries(cat PUBLIC libc)
 
 add_custom_target(cat-install
 	COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/cat ${BANAN_BIN}/

userspace/test/CMakeLists.txt

@@ -8,9 +8,7 @@ set(TEST_SOURCES
 
 add_executable(test ${TEST_SOURCES})
 target_compile_options(test PUBLIC -O2 -g)
-add_dependencies(test libc-install)
-target_link_options(test PUBLIC -nodefaultlibs)
-target_link_libraries(test PUBLIC ${BANAN_LIB}/libc.a)
+target_link_libraries(test PUBLIC libc)
 
 add_custom_target(test-install
 	COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/test ${BANAN_BIN}/

userspace/yes/CMakeLists.txt

@@ -8,8 +8,7 @@ set(SOURCES
 
 add_executable(yes ${SOURCES})
 target_compile_options(yes PUBLIC -O2 -g)
-add_dependencies(yes libc-install)
-target_link_options(yes PUBLIC -nodefaultlibs -lc)
+target_link_libraries(yes PUBLIC libc)
 
 add_custom_target(yes-install
 	COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/yes ${BANAN_BIN}/