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, 48 insertions, 0 deletions

diff --git a/CMake/FindBerkeleyDB.cmake b/CMake/FindBerkeleyDB.cmake
new file mode 100644
index 000000000..44cfd3ddb
--- /dev/null
+++ b/CMake/FindBerkeleyDB.cmake
@@ -0,0 +1,48 @@
+# - Try to find Berkeley DB
+# Once done this will define
+#
+#  BERKELEY_DB_FOUND - system has Berkeley DB
+#  BERKELEY_DB_INCLUDE_DIRS - the Berkeley DB include directory
+#  BERKELEY_DB_LIBRARIES - Link these to use Berkeley DB
+#  BERKELEY_DB_DEFINITIONS - Compiler switches required for using Berkeley DB
+
+# Copyright (c) 2006, Alexander Dymo, <adymo@kdevelop.org>
+# Copyright (c) 2016, Julian Andres Klode <jak@debian.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+find_path(BERKELEY_DB_INCLUDE_DIRS db.h
+  /usr/include/db5
+  /usr/local/include/db5
+  /usr/include/db4
+  /usr/local/include/db4
+)
+
+find_library(BERKELEY_DB_LIBRARIES NAMES db )
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Berkeley "Could not find Berkeley DB >= 4.1" BERKELEY_DB_INCLUDE_DIRS BERKELEY_DB_LIBRARIES)
+# show the BERKELEY_DB_INCLUDE_DIRS and BERKELEY_DB_LIBRARIES variables only in the advanced view
+mark_as_advanced(BERKELEY_DB_INCLUDE_DIRS BERKELEY_DB_LIBRARIES)