Use own fork of Ruby 1.8

patches/ruby/static_zlib.patch

@@ -1,43 +0,0 @@
---- a/common.mk
-+++ b/common.mk
-@@ -95,6 +95,7 @@ COMMONOBJS    = array.$(OBJEXT) \
- 		vm_trace.$(OBJEXT) \
- 		thread.$(OBJEXT) \
- 		cont.$(OBJEXT) \
-+		ext/zlib/zlib.$(OBJEXT) \
- 		$(BUILTIN_ENCOBJS) \
- 		$(BUILTIN_TRANSOBJS) \
- 		$(MISSING)
-diff --git a/ruby-2.1.5.orig/configure b/ruby-2.1.5/configure
-index d0f1f68..45ab642 100755
---- a/configure
-+++ b/configure
-@@ -2838,6 +2838,8 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
- 
- 
- 
-+LIBS="$LIBS -lz"
-+
- { # environment section
- 
- 
---- a/configure.in
-+++ b/configure.in
-@@ -31,6 +31,8 @@ rm() {
- }
- ])])])
- 
-+LIBS="$LIBS -lz"
-+
- { # environment section
- 
- AC_ARG_WITH(baseruby,
---- a/inits.c
-+++ b/inits.c
-@@ -61,5 +61,6 @@ rb_call_inits(void)
-     CALL(Complex);
-     CALL(version);
-     CALL(vm_trace);
-+    CALL(zlib);
- }
- #undef CALL