build: Refactor CMake back to in-tree CMakeListsbe

This moves the build definitions back to src/ subdirectories
(CMakeLists.txt per component). Configuration and dependencies are
kept out of tree. Configuration options are bundled into cmake/config/
modules. Dependencies are grouped by component (system/, crypt/, eth/,
coverage/, etc.). It now consistently uses target-based commands
(target_include_directories, target_link_libraries) instead of global
include_directories(). Proper PRIVATE/PUBLIC visibility for executable
link libraries. CONFIG_OUROBOROS_DEBUG now properly set based on being
a valid debug config (not just checking the string name).

It also adds OuroborosTargets export for find_package() support and
CMake package config files (OuroborosConfig.cmake) for easier
integration with CMake projects.

The build logic now follows more idiomatic CMake practices with
configuration separated from target definitions.

Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>

1 files changed, 71 insertions, 0 deletions

diff --git a/src/tools/CMakeLists.txt b/src/tools/CMakeLists.txt
new file mode 100644
index 00000000..3cec8172
--- /dev/null
+++ b/src/tools/CMakeLists.txt
@@ -0,0 +1,71 @@
+# Tools build configuration
+
+set(TOOLS_INCLUDE_DIRS
+  ${CMAKE_CURRENT_SOURCE_DIR}
+  ${CMAKE_SOURCE_DIR}/include
+  ${CMAKE_BINARY_DIR}/include
+)
+
+set(IRM_SOURCES
+  irm/irm.c
+  irm/irm_bind_program.c
+  irm/irm_bind_process.c
+  irm/irm_bind_ipcp.c
+  irm/irm_ipcp_create.c
+  irm/irm_ipcp_destroy.c
+  irm/irm_ipcp_bootstrap.c
+  irm/irm_ipcp_enroll.c
+  irm/irm_ipcp_list.c
+  irm/irm_ipcp_connect.c
+  irm/irm_ipcp_disconnect.c
+  irm/irm_unbind_program.c
+  irm/irm_unbind_process.c
+  irm/irm_unbind_ipcp.c
+  irm/irm_unbind.c
+  irm/irm_bind.c
+  irm/irm_ipcp.c
+  irm/irm_name.c
+  irm/irm_name_create.c
+  irm/irm_name_destroy.c
+  irm/irm_name_reg.c
+  irm/irm_name_unreg.c
+  irm/irm_name_list.c
+  irm/irm_utils.c
+)
+
+add_executable(irm ${IRM_SOURCES})
+target_include_directories(irm PRIVATE ${TOOLS_INCLUDE_DIRS})
+target_link_libraries(irm PRIVATE ouroboros-irm)
+install(TARGETS irm RUNTIME DESTINATION ${CMAKE_INSTALL_SBINDIR})
+
+add_executable(oping oping/oping.c)
+target_include_directories(oping PRIVATE ${TOOLS_INCLUDE_DIRS})
+target_link_libraries(oping PRIVATE ${LIBM_LIBRARIES} ouroboros-dev)
+install(TARGETS oping RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+add_executable(oecho oecho/oecho.c)
+target_include_directories(oecho PRIVATE ${TOOLS_INCLUDE_DIRS})
+target_link_libraries(oecho PRIVATE ouroboros-dev)
+install(TARGETS oecho RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+add_executable(ocbr ocbr/ocbr.c)
+target_include_directories(ocbr PRIVATE ${TOOLS_INCLUDE_DIRS})
+target_link_libraries(ocbr PRIVATE ouroboros-dev)
+install(TARGETS ocbr RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+add_executable(obc obc/obc.c)
+target_include_directories(obc PRIVATE ${TOOLS_INCLUDE_DIRS})
+target_link_libraries(obc PRIVATE ouroboros-dev)
+install(TARGETS obc RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+add_executable(operf operf/operf.c)
+target_include_directories(operf PRIVATE ${TOOLS_INCLUDE_DIRS})
+target_link_libraries(operf PRIVATE ouroboros-dev)
+install(TARGETS operf RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  add_executable(ovpn ovpn/ovpn.c)
+  target_include_directories(ovpn PRIVATE ${TOOLS_INCLUDE_DIRS})
+  target_link_libraries(ovpn PRIVATE ouroboros-dev)
+  install(TARGETS ovpn RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+endif()