Build in one step

CMakeLists.txt

@@ -1,8 +1,23 @@
 cmake_minimum_required(VERSION 3.5)
 project(zero-epwing)
-include_directories(eb)
-link_directories(eb/eb/.libs jansson/lib)
+
+include(ExternalProject)
+ExternalProject_Add(
+	eb
+	SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/eb
+	CONFIGURE_COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/eb/configure --disable-shared --disable-ebnet --disable-nls
+	PREFIX ${CMAKE_CURRENT_SOURCE_DIR}/eb
+	BUILD_COMMAND make
+	BUILD_IN_SOURCE 1
+	)
+include_directories(eb ${CMAKE_BINARY_DIR})
+option(JANSSON_EXAMPLES "" OFF)
+option(JANSSON_BUILD_DOCS "" OFF)
+option(JANSSON_WITHOUT_TESTS "" ON)
+add_subdirectory(jansson)
+link_directories(eb/eb/.libs ${CMAKE_BINARY_DIR}/jansson/lib)
 add_executable(zero-epwing main.c book.c convert.c hooks.c)
+add_dependencies(zero-epwing eb jansson)
 target_link_libraries(zero-epwing libeb.a libz.a libjansson.a)
 if (WIN32 OR APPLE)
     target_link_libraries(zero-epwing libiconv.a)

README.md

@@ -38,13 +38,15 @@ Prepare your development environment by making sure the following tools are set
 
 Once your system is configured, follow the steps below to create builds:
 
-1.  Clone the repository by executing `git clone https://github.com/FooSoft/zero-epwing`.
-2.  Initialize the git submodules by executing `git submodule init`.
-3.  Pull down the submodule data by executing `git submodule update`.
-4.  Switch to the `eb` directory and execute `./configure --disable-shared --disable-ebnet --disable-nls`.
-5.  While still in the `eb` directory, build the modified library by executing `make`.
-6.  Switch to the `jansson` directory then execute `cmake .` and `make`.
-7.  From the project root directory, execute `cmake .` and `make`.
+1.  Clone the repository by executing
+    ```
+    git clone --recurse-submodules https://github.com/FooSoft/zero-epwing
+    ```
+2.  Prepare the project. From the project root directory, execute
+    ```
+    cmake . -Bbuild && cmake --build build --
+    ```
+3.  Find the executable in the `build` directory.
 
 ## Usage ##
 
@@ -108,4 +110,3 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
-