diff --git a/Makefile.in b/Makefile.in
index 2b13e866e..a92430124 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -88,9 +88,9 @@ UNINSTALLNDIFF=@UNINSTALLNDIFF@
 UNINSTALLNPING=@UNINSTALLNPING@
 
 ifneq (@NOLUA@,yes)
-NSE_SRC=nse_main.cc nse_utility.cc nse_nsock.cc nse_db.cc nse_dnet.cc nse_fs.cc nse_nmaplib.cc nse_debug.cc nse_pcrelib.cc nse_lpeg.cc
-NSE_HDRS=nse_main.h nse_utility.h nse_nsock.h nse_db.h nse_dnet.h nse_fs.h nse_nmaplib.h nse_debug.h nse_pcrelib.h nse_lpeg.h
-NSE_OBJS=nse_main.o nse_utility.o nse_nsock.o nse_db.o nse_dnet.o nse_fs.o nse_nmaplib.o nse_debug.o nse_pcrelib.o nse_lpeg.o
+NSE_SRC=nse_main.cc nse_utility.cc nse_nsock.cc nse_db.cc nse_dnet.cc nse_fs.cc nse_nmaplib.cc nse_debug.cc nse_lpeg.cc
+NSE_HDRS=nse_main.h nse_utility.h nse_nsock.h nse_db.h nse_dnet.h nse_fs.h nse_nmaplib.h nse_debug.h nse_lpeg.h
+NSE_OBJS=nse_main.o nse_utility.o nse_nsock.o nse_db.o nse_dnet.o nse_fs.o nse_nmaplib.o nse_debug.o nse_lpeg.o
 ifneq (@OPENSSL_LIBS@,)
 NSE_SRC+=nse_openssl.cc nse_ssl_cert.cc
 NSE_HDRS+=nse_openssl.h nse_ssl_cert.h
diff --git a/mswin32/nmap.vcxproj b/mswin32/nmap.vcxproj
index 1fbb9d2d0..47f52dfd5 100644
--- a/mswin32/nmap.vcxproj
+++ b/mswin32/nmap.vcxproj
@@ -214,7 +214,6 @@
     <ClCompile Include="..\nse_nsock.cc" />
     <ClCompile Include="..\nse_dnet.cc" />
     <ClCompile Include="..\nse_openssl.cc" />
-    <ClCompile Include="..\nse_pcrelib.cc" />
     <ClCompile Include="..\nse_ssl_cert.cc" />
     <ClCompile Include="..\nse_zlib.cc" />
     <ClCompile Include="..\osscan.cc" />
@@ -274,7 +273,6 @@
     <ClInclude Include="..\nse_nsock.h" />
     <ClInclude Include="..\nse_dnet.h" />
     <ClInclude Include="..\nse_openssl.h" />
-    <ClInclude Include="..\nse_pcrelib.h" />
     <ClInclude Include="..\nse_ssl_cert.h" />
     <ClInclude Include="..\nse_zlib.h" />
     <ClInclude Include="..\osscan.h" />
diff --git a/nse_main.cc b/nse_main.cc
index d5d460e6d..2382688bd 100644
--- a/nse_main.cc
+++ b/nse_main.cc
@@ -15,7 +15,6 @@
 #include "nse_fs.h"
 #include "nse_nsock.h"
 #include "nse_nmaplib.h"
-#include "nse_pcrelib.h"
 #include "nse_openssl.h"
 #include "nse_debug.h"
 #include "nse_lpeg.h"
@@ -562,7 +561,6 @@ static int panic (lua_State *L)
 static void set_nmap_libraries (lua_State *L)
 {
   static const luaL_Reg libs[] = {
-    {NSE_PCRELIBNAME, luaopen_pcrelib},
     {NSE_NMAPLIBNAME, luaopen_nmap},
     {NSE_DBLIBNAME, luaopen_db},
     {LFSLIBNAME, luaopen_lfs},
diff --git a/nse_main.lua b/nse_main.lua
index 24c9d2ae7..596aba9ba 100644
--- a/nse_main.lua
+++ b/nse_main.lua
@@ -292,7 +292,7 @@ local REQUIRE_ERROR = {};
 rawset(stdnse, "silent_require", function (...)
   local status, mod = pcall(require, ...);
   if not status then
-    print_debug(1, "%s", traceback(mod));
+    print_debug(2, "%s", traceback(mod));
     error(REQUIRE_ERROR)
   else
     return mod;
diff --git a/nselib/unittest.lua b/nselib/unittest.lua
index c3043fbc0..c4e593f0a 100644
--- a/nselib/unittest.lua
+++ b/nselib/unittest.lua
@@ -107,7 +107,6 @@ local libs = {
 "ospf",
 "outlib",
 "packet",
-"pcre",
 "pgsql",
 "pop3",
 "pppoe",