Got working cmake. C libraries be weird man.

.gitignore

@@ -6,9 +6,11 @@ cmake_install.cmake
 compile_commands.json
 .dir-locals.el
 Makefile
-urchin-*
+urchin-server
+urchin-client
 lib*.a
 lib*.so
 
 #Generated code
 src/protobuf_gen
+urchin-util/src/protobuf_gen

CMakeLists.txt

@@ -9,49 +9,8 @@ set(CMAKE_C_STANDARD 90)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(CMAKE_C_CLANG_TIDY)
 
-# Get protobuf to serialize data between the server and client
+include(CheckIncludeFile)
-# cmake config not packaged with the lib. resort to pkg config
+add_subdirectory(${CMAKE_SOURCE_DIR}/urchin-util)
-include(FindPkgConfig)
-pkg_check_modules(protobuf-c REQUIRED libprotobuf-c>=1.4.1)
-
-# Compile Shared Library
-file(GLOB_RECURSE LIBRARY_SOURCE_FILES
-    ${CMAKE_SOURCE_DIR}/src/shared_lib/*.c)
-
-file(GLOB_RECURSE LIBRARY_HEADER_FILES
-    ${CMAKE_SOURCE_DIR}/src/shared_lib/*.h)
-
-# Generate Protobuf code
-find_program(protoc-c_EXECUTABLE NAMES protoc-c REQUIRED)
-find_package_handle_standard_args(protoc-c REQUIRED_VARS protoc-c_EXECUTABLE)
-file(GLOB_RECURSE PROTOBUF_PROTO_FILES
-    ${CMAKE_SOURCE_DIR}/protobuf/*.proto)
-add_custom_target(GenerateProtobuf)
-add_custom_command(
-    OUTPUT GenerateProtobuf
-    DEPENDS ${protoc-c_EXECUTABLE}
-    COMMAND ${protoc-c_EXECUTABLE} --c_out=${CMAKE_SOURCE_DIR}/src/protobuf_gen/ --proto_path=${CMAKE_SOURCE_DIR}/protobuf/ ${PROTOBUF_PROTO_FILES}
-)
-
-# Include protobuf generated  message formats
-file(GLOB_RECURSE PROTOBUF_SOURCE_FILES
-    ${CMAKE_SOURCE_DIR}/src/protobuf_gen/*.c)
-
-file(GLOB_RECURSE PROTOBUF_HEADER_FILES
-    ${CMAKE_SOURCE_DIR}/src/protobuf_gen/*.h)
-set_source_files_properties(${PROTOBUF_HEADER_FILES} ${PROTOBUF_SOURCE_FILES} PROPERTIES GENERATED TRUE)
-
-add_library(${PROJECT_NAME} STATIC
-    GenerateProtobuf
-    ${LIBRARY_HEADER_FILES}
-    ${PROTOBUF_HEADER_FILES}
-    ${LIBRARY_SOURCE_FILES}
-    ${PROTOBUF_SOURCE_FILES}
-)
-add_dependencies(${PROJECT_NAME} GenerateProtobuf)
-
-target_link_libraries(${PROJECT_NAME} PUBLIC protobuf-c)
-
 
 # Compile Server
 file(GLOB_RECURSE SERVER_SOURCE_FILES
@@ -61,7 +20,7 @@ file(GLOB_RECURSE SERVER_HEADER_FILES
     ${CMAKE_SOURCE_DIR}/src/server/*.h)
 
 add_executable(${PROJECT_NAME}-server ${SERVER_HEADER_FILES} ${SERVER_SOURCE_FILES})
-target_link_libraries(${PROJECT_NAME}-server PUBLIC ${PROJECT_NAME})
+target_link_libraries(${PROJECT_NAME}-server PUBLIC urchin-util)
 
 # Compile Client
 file(GLOB_RECURSE CLIENT_SOURCE_FILES
@@ -71,4 +30,4 @@ file(GLOB_RECURSE CLIENT_HEADER_FILES
     ${CMAKE_SOURCE_DIR}/src/client/*.h)
 
 add_executable(${PROJECT_NAME}-client ${CLIENT_HEADER_FILES} ${CLIENT_SOURCE_FILES})
-target_link_libraries(${PROJECT_NAME}-client PUBLIC ${PROJECT_NAME})
+target_link_libraries(${PROJECT_NAME}-client PUBLIC urchin-util)

urchin-util/CMakeLists.txt

@@ -0,0 +1,59 @@
+cmake_minimum_required(VERSION 3.16)
+project(urchin-util
+    VERSION 0
+    DESCRIPTION "Simple Mud Experiment in C"
+    HOMEPAGE_URL "https://git.warwick-new.co.uk/"
+    LANGUAGES C)
+
+set(CMAKE_C_STANDARD 90)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_C_CLANG_TIDY)
+
+# Get protobuf to serialize data between the server and client
+# cmake config not packaged with the lib. resort to pkg config
+include(FindPkgConfig)
+pkg_check_modules(protobuf-c REQUIRED libprotobuf-c>=1.4.1)
+
+# Compile Shared Library
+file(GLOB LIBRARY_SOURCE_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/*.c)
+
+file(GLOB LIBRARY_HEADER_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/*.h)
+
+# Generate Protobuf code
+find_program(protoc-c_EXECUTABLE NAMES protoc-c REQUIRED)
+find_package_handle_standard_args(protoc-c REQUIRED_VARS protoc-c_EXECUTABLE)
+file(GLOB_RECURSE PROTOBUF_PROTO_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/protobuf/*.proto)
+file(MAKE_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/src/protobuf_gen/)
+add_custom_target(GenerateProtobuf)
+add_custom_command(
+    OUTPUT GenerateProtobuf
+    DEPENDS ${protoc-c_EXECUTABLE}
+    COMMAND ${protoc-c_EXECUTABLE} --c_out=${CMAKE_CURRENT_SOURCE_DIR}/src/protobuf_gen/ --proto_path=${CMAKE_CURRENT_SOURCE_DIR}/protobuf/ ${PROTOBUF_PROTO_FILES}
+)
+
+# Include protobuf generated  message formats
+file(GLOB_RECURSE PROTOBUF_SOURCE_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/protobuf_gen/*.c)
+
+file(GLOB_RECURSE PROTOBUF_HEADER_FILES
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/protobuf_gen/*.h)
+set_source_files_properties(${PROTOBUF_HEADER_FILES} ${PROTOBUF_SOURCE_FILES} PROPERTIES GENERATED TRUE)
+
+add_library(${PROJECT_NAME} SHARED
+    GenerateProtobuf
+    ${LIBRARY_HEADER_FILES}
+    ${PROTOBUF_HEADER_FILES}
+    ${LIBRARY_SOURCE_FILES}
+    ${PROTOBUF_SOURCE_FILES}
+)
+target_link_libraries(${PROJECT_NAME} PUBLIC protobuf-c)
+target_include_directories(${PROJECT_NAME} PUBLIC include)
+
+install(
+	TARGETS ${PROJECT_NAME}
+	LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+)

urchin-util/include/error.h

@@ -9,5 +9,3 @@ void error_crash(const char *msg);
 void error_warn(const char *msg);
 
 void error_log(const char *msg);
-
-void msg_amsg_test(int a);

urchin-util/include/message.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include "error.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void msg_amsg_test(int a);

urchin-util/protobuf/amessage.proto

@@ -0,0 +1,4 @@
+message AMessage {
+  required int32 a=1;
+  optional int32 b=2;
+}

urchin-util/src/error.c

@@ -0,0 +1,13 @@
+#include "error.h"
+#include "protobuf_gen/amessage.pb-c.h"
+#define MAX_MSG_SIZE 1024
+
+void error_crash(const char *msg) {
+  fprintf(stderr, "error crash: %s\n", msg);
+  exit(EXIT_FAILURE);
+}
+
+void error_warn(const char *msg) { fprintf(stderr, "warning: %s\n", msg); }
+
+// TODO: Save the logs somewhere
+void error_log(const char *msg) { fprintf(stderr, "log: %s\n", msg); }

urchin-util/src/message.c

@@ -1,16 +1,6 @@
-#include "error.h"
+#include "message.h"
-#include "../protobuf_gen/amessage.pb-c.h"
 #define MAX_MSG_SIZE 1024
-
+#include "protobuf_gen/amessage.pb-c.h"
-void error_crash(const char *msg) {
-  fprintf(stderr, "error crash: %s\n", msg);
-  exit(EXIT_FAILURE);
-}
-
-void error_warn(const char *msg) { fprintf(stderr, "warning: %s\n", msg); }
-
-// TODO: Save the logs somewhere
-void error_log(const char *msg) { fprintf(stderr, "log: %s\n", msg); }
 
 void msg_amsg_test(int a) {
   AMessage msg = AMESSAGE__INIT; // The massage format