load the versioned pcre so that it loads /lib/libprecre.so.1 directly
https://github.com/JuliaLang/julia/issues/450

diff -urN julia-9999-orig/base/pcre.jl julia-9999/base/pcre.jl
--- julia-9999-orig/base/pcre.jl	2012-11-01 15:29:24.796863501 -0400
+++ julia-9999/base/pcre.jl	2012-11-01 15:30:33.519886860 -0400
@@ -1,6 +1,6 @@
 ## low-level pcre interface ##
 
-libpcre = dlopen("libpcre")
+libpcre = dlopen("libpcre.so.1")
 
 module PCRE
 import Base.*
diff -urN julia-9999-orig/base/start_image.jl julia-9999/base/start_image.jl
--- julia-9999-orig/base/start_image.jl	2012-11-01 15:29:24.795863497 -0400
+++ julia-9999/base/start_image.jl	2012-11-01 15:29:54.479873517 -0400
@@ -6,7 +6,7 @@
 @windows_only _jl_repl = ccall(:GetModuleHandleA,stdcall,Ptr{Void},(Ptr{Void},),C_NULL)
 
 # Essential libraries
-libpcre = dlopen("libpcre")
+libpcre = dlopen("libpcre.so.1")
 libgrisu = dlopen("libgrisu")
 librandom = dlopen("librandom")
 libopenlibm = dlopen("libopenlibm")