add version and a find_package() module

CMakeLists.txt

@@ -2,16 +2,20 @@
 
 cmake_minimum_required(VERSION 3.18)
 project(libprof VERSION 2.2.1 LANGUAGES C)
-
 find_package(Gint 2.2.1 REQUIRED)
 
-add_compile_options(-Wall -Wextra -std=c11 -Os)
-include_directories("${CMAKE_CURRENT_SOURCE_DIR}")
+configure_file(libprof.h libprof.h)
 
 set(NAME "prof-${FXSDK_PLATFORM}")
-add_library("${NAME}" STATIC libprof.c)
-target_link_libraries("${NAME}" Gint::Gint)
+add_library(${NAME} STATIC libprof.c)
 
-install(TARGETS "${NAME}" DESTINATION "${FXSDK_COMPILER_INSTALL}")
-install(FILES libprof.h DESTINATION "${FXSDK_COMPILER_INSTALL}/include")
+target_compile_options(${NAME} PUBLIC -Wall -Wextra -std=c11 -Os)
+target_include_directories(${NAME} PUBLIC "${CMAKE_CURRENT_BINARY_DIR}")
+target_link_libraries(${NAME} Gint::Gint)
 
+install(TARGETS ${NAME}
+  DESTINATION "${FXSDK_COMPILER_INSTALL}")
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libprof.h"
+  DESTINATION "${FXSDK_COMPILER_INSTALL}/include")
+install(FILES cmake/FindLibProf.cmake
+  DESTINATION "${FXSDK_CMAKE_MODULE_PATH}")

cmake/FindLibProf.cmake

@@ -0,0 +1,16 @@
+include(FindSimpleLibrary)
+include(FindPackageHandleStandardArgs)
+
+find_simple_library("libprof-${FXSDK_PLATFORM}.a" include/libprof.h
+  "PROF_VERSION" PATH_VAR PROF_PATH VERSION_VAR PROF_VERSION)
+
+find_package_handle_standard_args(LibProf
+  REQUIRED_VARS PROF_PATH PROF_VERSION
+  VERSION_VAR PROF_VERSION)
+
+if(LibProf_FOUND)
+  add_library(LibProf::LibProf UNKNOWN IMPORTED)
+  set_target_properties(LibProf::LibProf PROPERTIES
+    IMPORTED_LOCATION "${PROF_PATH}"
+    INTERFACE_LINK_OPTIONS -lprof-${FXSDK_PLATFORM})
+endif()

libprof.h

@@ -8,6 +8,9 @@
 #include <stdint.h>
 #include <gint/defs/attributes.h>
 
+/* This is substituted by CMake at compile-time */
+#define PROF_VERSION "@libprof_VERSION@"
+
 //---
 //	Initialization
 //---