Add support for cmake as build system

CMakeLists.txt

@@ -0,0 +1,61 @@
+cmake_minimum_required(VERSION 3.15)
+project(ptouch_print C)
+
+# Configure CMake
+set(CMAKE_C_STANDARD 11)
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
+
+# Configure required dependencies
+find_package(Gettext REQUIRED)
+find_package(GD REQUIRED)
+find_package(PkgConfig REQUIRED)
+
+pkg_check_modules(LIBUSB REQUIRED libusb-1.0)
+
+# Configure names and versions
+execute_process(COMMAND bash "${CMAKE_CURRENT_LIST_DIR}/build-aux/git-version-gen" OUTPUT_VARIABLE VERSION)
+
+# Configure project executable
+add_executable(ptouch_print)
+
+target_sources(ptouch_print
+    PUBLIC
+        include/ptouch.h
+    PRIVATE
+        include/gettext.h
+        src/libptouch.c
+        src/ptouch-print.c
+)
+
+# Configure compiler
+target_compile_options(ptouch_print
+    PRIVATE
+        -g
+        -Wall
+        -Wextra
+        -Wunused
+        -O3
+        -fPIC
+)
+
+target_compile_definitions(ptouch_print
+    PRIVATE
+        LOCALEDIR="${CMAKE_INSTALL_LOCALEDIR}"
+        USING_CMAKE=1
+        VERSION="${VERSION}"
+        PACKAGE="ptouch"
+
+)
+
+target_include_directories(ptouch_print
+    PRIVATE
+        include
+        ${GD_INCLUDE_DIR}
+        ${LIBUSB_INCLUDE_DIRS}
+)
+
+# Configure linker
+target_link_libraries(ptouch_print
+        ${GD_LIBRARIES}
+        ${LIBUSB_LIBRARIES}
+)