CMake: Add basic CMake build system

Introduce an initial CMake buildsystem. This build system can build
a fully working apt system without translation or documentation.

The FindBerkelyDB module is from kdelibs, with some small adjustements
to also look in db5 directories.

Initial work on this CMake build system started in 2009, and was
resumed in August 2016.

1 files changed, 26 insertions, 0 deletions

diff --git a/apt-inst/CMakeLists.txt b/apt-inst/CMakeLists.txt
new file mode 100644
index 000000000..f7578231a
--- /dev/null
+++ b/apt-inst/CMakeLists.txt
@@ -0,0 +1,26 @@
+# Include apt-pkg directly, as some files have #include <system.h>
+include_directories(${PROJECT_BINARY_DIR}/include/apt-pkg)
+
+# Set the version of the library
+set(MAJOR 2.0)
+set(MINOR 0)
+set(APT_INST_MAJOR ${MAJOR} PARENT_SCOPE)
+
+# Definition of the C++ files used to build the library
+file(GLOB_RECURSE library "*.cc")
+file(GLOB_RECURSE headers "*.h")
+
+# Create a library using the C++ files
+add_library(apt-inst SHARED ${library})
+
+# Link the library and set the SONAME
+target_link_libraries(apt-inst PUBLIC apt-pkg ${CMAKE_THREAD_LIBS_INIT})
+target_link_libraries(apt-inst PRIVATE ${CMAKE_THREAD_LIBS_INIT})
+set_target_properties(apt-inst PROPERTIES VERSION ${MAJOR}.${MINOR})
+set_target_properties(apt-inst PROPERTIES SOVERSION ${MAJOR})
+add_version_script(apt-inst)
+
+# Install the library and the headers
+install(TARGETS apt-inst LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+install(FILES ${headers} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/apt-pkg)
+flatify(${PROJECT_BINARY_DIR}/include/apt-pkg/ "${headers}")