update OpenAL include/lib from SDK (nothing really changed in the header)

add crypto++ to libraries (will later be used for checksums)

This was SVN commit r5058.

build/premake/extern_libs.lua

@@ -3,8 +3,7 @@
 --
 -- TYPICAL TASK: add new library. Instructions:
 -- 1) add a new extern_lib_defs entry
--- 2) add library name to package_add_extern_libs call site
---    (for the package that wants to use it)
+-- 2) add library name to extern_libs tables in premake.lua for all 'packages' that want to use it
 
 
 -- directory in which all library subdirectories reside.
@@ -47,6 +46,8 @@ extern_lib_defs = {
 	boost = {
 		unix_names = { "boost_signals" }
 	},
+	cryptopp = {
+	},
 	cxxtest = {
 	},
 	misc = {

build/premake/premake.lua

@@ -377,7 +377,8 @@ function setup_all_libs ()
 		"vorbis",
 		"libjpg",
 		"dbghelp",
-		"directx"
+		"directx",
+		"cryptopp"
 	}
 	setup_static_lib_package("lowlevel", source_dirs, extern_libs, {})
 	sysdep_dirs = {

build/workspaces/required-libraries-linux.txt

@@ -53,6 +53,11 @@ $binaries := directory containing system/ and data/
 - OpenAL: [sound]
   <No instructions here yet>
 
+- cryptopp
+  unzip libraries/cryptopp/source_and_build_and_test_files.zip to a temp dir
+  copy header files from libraries/cryptopp/include/cryptlib into the same dir
+  compile per cryptopp instructions (see website)
+  
 These libraries should have packages available for your distribution. You will
 need to get the corresponding -dev or -devel package for each library.
 - SDL