Initial stuff

cmake/FindLMDB.cmake

@@ -0,0 +1,52 @@
+#This file is taken from here https://gitlab.ralph.or.at/causal-rt/causal-cpp/, it was GPLv3 license
+#Thank you so much, mr. Ralph Alexander Bariz, I hope you don't mind me using your code
+
+# Try to find LMDB headers and library.
+#
+# Usage of this module as follows:
+#
+#     find_package(LMDB)
+#
+# Variables used by this module, they can change the default behaviour and need
+# to be set before calling find_package:
+#
+#  LMDB_ROOT_DIR          Set this variable to the root installation of
+#                            LMDB if the module has problems finding the
+#                            proper installation path.
+#
+# Variables defined by this module:
+#
+#  LMDB_FOUND               System has LMDB library/headers.
+#  LMDB_LIBRARIES           The LMDB library.
+#  LMDB_INCLUDE_DIRS        The location of LMDB headers.
+
+find_path(LMDB_ROOT_DIR
+  NAMES include/lmdb.h
+  )
+
+find_library(LMDB_LIBRARIES
+  NAMES liblmdb.a liblmdb.so liblmdb.so.a liblmdb.dll.a # We want lmdb to be static, if possible
+  HINTS ${LMDB_ROOT_DIR}/lib
+  )
+
+add_library(lmdb UNKNOWN IMPORTED)
+set_target_properties(lmdb PROPERTIES
+    IMPORTED_LOCATION ${LMDB_LIBRARIES}
+    )
+
+find_path(LMDB_INCLUDE_DIRS
+  NAMES lmdb.h
+  HINTS ${LMDB_ROOT_DIR}/include
+  )
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(LMDB DEFAULT_MSG
+  LMDB_LIBRARIES
+  LMDB_INCLUDE_DIRS
+  )
+
+mark_as_advanced(
+  LMDB_ROOT_DIR
+  LMDB_LIBRARIES
+  LMDB_INCLUDE_DIRS
+)