This commit ties the new DSO code (crypto/dso/) into the build for a

variety of platforms. A few are missing, and they will be added in
eventually, but as this is new stuff, it was better to not break lots of
platforms in one go that we can't easily test. The changes to "Configure"
should illustrate how to add support to other systems if you feel like
having a go.

NB: I'll add something shortly to allow you to add "dlfcn.h" support on
those platforms that don't have (or need) a dlfcn.h header file. (The
symbol for Configure will probably by "dlfcn_no_h").

Thanks to Richard Levitte, who is responsible for the dso_dl.c support,
understanding the trickier aspects of the build process, and giving great
feedback on everything else.

[Don't use this stuff if you're easily offended by changes to the
interface or behaviour - it's still work in progress.]

PR:

3 files changed, 19 insertions, 0 deletions

diff --git a/util/libeay.num b/util/libeay.num
index f611d6b283..54e4fd3aeb 100755
--- a/util/libeay.num
+++ b/util/libeay.num
@@ -2230,3 +2230,20 @@ bn_dump1                                2255
 des_check_key_parity                    2256
 lh_num_items                            2257
 RAND_event                              2258
+DSO_new                                 2259
+DSO_new_method                          2260
+DSO_free                                2261
+DSO_flags                               2262
+DSO_up                                  2263
+DSO_set_default_method                  2264
+DSO_get_default_method                  2265
+DSO_get_method                          2266
+DSO_set_method                          2267
+DSO_load                                2268
+DSO_bind                                2269
+DSO_METHOD_null                         2270
+DSO_METHOD_openssl                      2271
+DSO_METHOD_dlfcn                        2272
+DSO_METHOD_win32                        2273
+ERR_load_DSO_strings                    2274
+DSO_METHOD_dl                           2275
diff --git a/util/mkdef.pl b/util/mkdef.pl
index 4e2845a4e1..57c3124324 100755
--- a/util/mkdef.pl
+++ b/util/mkdef.pl
@@ -102,6 +102,7 @@ $crypto.=" crypto/dsa/dsa.h" unless $no_dsa;
 $crypto.=" crypto/dh/dh.h" unless $no_dh;
 $crypto.=" crypto/hmac/hmac.h" unless $no_hmac;
 
+$crypto.=" crypto/dso/dso.h";
 $crypto.=" crypto/stack/stack.h";
 $crypto.=" crypto/buffer/buffer.h";
 $crypto.=" crypto/bio/bio.h";
diff --git a/util/mkfiles.pl b/util/mkfiles.pl
index 6fa424bd19..924a85f70e 100755
--- a/util/mkfiles.pl
+++ b/util/mkfiles.pl
@@ -25,6 +25,7 @@ my @dirs = (
 "crypto/bn",
 "crypto/rsa",
 "crypto/dsa",
+"crypto/dso",
 "crypto/dh",
 "crypto/buffer",
 "crypto/bio",