Add a new option --no-autoload to configure.py. This will produce a minimal

build (only libstate, utils, plus dependencies), which can be extended with
use of --enable-modules.

To add new modules to the set of always-loaded, use 'load_on always' in info.txt

Also fix a few small build problems that popped up when doing a minimal build.

Requested by a user.

7 files changed, 26 insertions, 4 deletions

diff --git a/checks/pk_bench.cpp b/checks/pk_bench.cpp
index a944934fb..88a72afde 100644
--- a/checks/pk_bench.cpp
+++ b/checks/pk_bench.cpp
@@ -675,6 +675,8 @@ void bench_pk(RandomNumberGenerator& rng,
       benchmark_dsa_nr<NR_PrivateKey>(rng, seconds, report);
 #endif
 
+#if defined(BOTAN_HAS_RW)
    if(algo == "All" || algo == "RW")
       benchmark_rw(rng, seconds, report);
+#endif
    }
diff --git a/configure.pl b/configure.pl
index 592eb2bff..6cf43e5e6 100755
--- a/configure.pl
+++ b/configure.pl
@@ -520,6 +520,7 @@ sub scan_modules {
         next unless(module_runs_on($config, \%modinfo, $mod, 0));
 
         if($modinfo{'load_on'} eq 'auto' or
+           $modinfo{'load_on'} eq 'always' or
             ($modinfo{'load_on'} eq 'asm_ok' and $$config{'asm_ok'})) {
 
             my %maybe_load = ();
diff --git a/configure.py b/configure.py
index d1bd46cb5..d2fd1535f 100755
--- a/configure.py
+++ b/configure.py
@@ -164,6 +164,8 @@ def process_command_line(args):
     mods_group.add_option('--disable-modules', dest='disabled_modules',
                           metavar='MODS', action='append', default=[],
                           help='disable specific modules')
+    mods_group.add_option('--no-autoload', action='store_true', default=False,
+                          help='disable automatic loading')
 
     for mod in ['openssl', 'gnump', 'bzip2', 'zlib']:
 
@@ -799,10 +801,22 @@ def choose_modules_to_use(options, modules):
                 cannot_use_because(modname, 'loaded on request only')
             elif module.load_on == 'dep':
                 maybe_dep.append(modname)
-            elif module.load_on in ['auto', 'asm_ok']:
-                if module.load_on == 'asm_ok' and not options.asm_ok:
+
+            elif module.load_on == 'always':
+                to_load.append(modname)
+
+            elif module.load_on == 'asm_ok':
+                if options.asm_ok:
+                    if options.no_autoload:
+                        maybe_dep.append(modname)
+                    else:
+                        to_load.append(modname)
+                else:
                     cannot_use_because(modname,
                                        'uses assembly and --disable-asm set')
+            elif module.load_on == 'auto':
+                if options.no_autoload:
+                    maybe_dep.append(modname)
                 else:
                     to_load.append(modname)
             else:
@@ -847,6 +861,8 @@ def choose_modules_to_use(options, modules):
             logging.info('Skipping mod because %s - %s' % (
                 reason, ' '.join(disabled_mods)))
 
+    logging.info('Loading modules %s', ' '.join(sorted(to_load)))
+
     return [modules[mod] for mod in to_load]
 
 """
diff --git a/doc/log.txt b/doc/log.txt
index faba96814..a8627429c 100644
--- a/doc/log.txt
+++ b/doc/log.txt
@@ -1,5 +1,7 @@
 
 * 1.8.7-pre, 2009-??-??
+ - Fix processing multiple messages in XTS mode
+ - Add --no-autoload option to configure.py, for minimized builds
 
 * 1.8.6, 2009-08-13
  - Add Cryptobox, a set of simple password-based encryption routines
diff --git a/src/libstate/info.txt b/src/libstate/info.txt
index 7ca35c5a4..6eaa2f70b 100644
--- a/src/libstate/info.txt
+++ b/src/libstate/info.txt
@@ -1,6 +1,6 @@
 realname "Botan Libstate Module"
 
-load_on auto
+load_on always
 
 define LIBSTATE_MODULE
 
diff --git a/src/libstate/pk_engine.h b/src/libstate/pk_engine.h
index 3f8650a4e..256a47c20 100644
--- a/src/libstate/pk_engine.h
+++ b/src/libstate/pk_engine.h
@@ -9,6 +9,7 @@
 #define BOTAN_ENGINE_PK_LOOKUP_H__
 
 #include <botan/bigint.h>
+#include <botan/pow_mod.h>
 
 #if defined(BOTAN_HAS_IF_PUBLIC_KEY_FAMILY)
   #include <botan/if_op.h>
diff --git a/src/utils/info.txt b/src/utils/info.txt
index 95ea5fc2e..ab50b88ad 100644
--- a/src/utils/info.txt
+++ b/src/utils/info.txt
@@ -2,7 +2,7 @@ realname "Utility Functions"
 
 define UTIL_FUNCTIONS
 
-load_on auto
+load_on always
 
 <libs>
 tru64 -> rt