svn r167 : let me know if I broke makefile.unix ...

[Gavin Andresen]

svn r167 is a tweaked makefile.unix that Xunie reports allows bitcoind to compile cleanly on Ubuntu 10.04 x86_64.

I tested on my Debian box and it does no harm; let me know if it breaks the build on any other unix flavors.

Code:

Index: makefile.unix
===================================================================
--- makefile.unix (revision 166)
+++ makefile.unix (working copy)
@@ -26,7 +26,9 @@
    -l ssl \
    -l crypto \
  -Wl,-Bdynamic \
-   -l gthread-2.0
+   -l gthread-2.0 \
+   -l z \
+   -l dl