Add CMake build script

.gitignore

@@ -3,4 +3,5 @@
 *.obj
 *.lib
 *.exe
-*~
+*~
+build/

CMakeLists.txt

@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 3.0)
+
+# Define project
+project(sexpresso VERSION 1.0.0 DESCRIPTION "A C++ centric s-expression parser library.")
+
+# Shared library specification
+add_library(sexpresso SHARED sexpresso/sexpresso.cpp)
+
+# Set up version
+set_target_properties(sexpresso PROPERTIES VERSION ${PROJECT_VERSION})
+set_target_properties(sexpresso PROPERTIES SOVERSION 1)
+
+# Set up headers (public API)
+set_target_properties(sexpresso PROPERTIES PUBLIC_HEADER sexpresso/sexpresso.hpp)
+
+# Install rule
+include(GNUInstallDirs)
+install(
+    TARGETS sexpresso
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+)
+
+# Generate pkg-config file
+configure_file(sexpresso.pc.in sexpresso.pc @ONLY)
+install(
+    FILES ${CMAKE_BINARY_DIR}/sexpresso.pc
+    DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig
+)

README.org

@@ -33,6 +33,16 @@ more unclearness of what includes what (since it ends up being a big chain), you
 
 After that you can move onward!
 
+** Building with CMake
+
+The project can be installed as a shared library using CMake:
+
+#+BEGIN_SRC sh
+mkdir build && cd build
+cmake ..
+make && make install
+#+END_SRC
+
 ** Parsing
 
 #+BEGIN_SRC c++

sexpresso.pc.in

@@ -0,0 +1,12 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
+includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
+
+Name: @PROJECT_NAME@
+Description: @PROJECT_DESCRIPTION@
+Version: @PROJECT_VERSION@
+
+Requires:
+Libs: -L${libdir} -lsexpresso
+Cflags: -I${includedir}