diff -ru ./SConstruct ../../mongodb-src-r2.2.0/SConstruct
--- ./SConstruct	2012-08-28 09:28:11.000000000 +0400
+++ ../../mongodb-src-r2.2.0/SConstruct	2012-10-14 14:04:31.000000000 +0400
@@ -790,6 +790,20 @@
             print( "c++ compiler not installed!" )
             Exit(1)
 
+    if use_system_version_of_library("pcre"):
+        if not conf.CheckLib("pcrecpp"):
+            Exit(1)
+        if not conf.CheckLib("pcre"):
+            Exit(1)
+
+    if use_system_version_of_library("snappy"):
+        if not conf.CheckLib("snappy"):
+            Exit(1)
+
+    if use_system_version_of_library("js"):
+        if not conf.CheckLib("js"):
+            Exit(1)
+
     if use_system_version_of_library("boost"):
         if not conf.CheckCXXHeader( "boost/filesystem/operations.hpp" ):
             print( "can't find boost headers" )
@@ -1100,7 +1114,7 @@
 Export("has_option use_system_version_of_library")
 Export("installSetup")
 Export("usesm usev8")
-Export("darwin windows solaris linux nix")
+Export("darwin windows solaris linux nix freebsd")
 
 env.SConscript( 'src/SConscript', variant_dir='$BUILD_DIR', duplicate=False )
 env.SConscript( 'src/SConscript.client', variant_dir='$BUILD_DIR/client_build', duplicate=False )
diff -ru ./src/SConscript.client ../../mongodb-src-r2.2.0/src/SConscript.client
--- ./src/SConscript.client	2012-08-28 09:28:11.000000000 +0400
+++ ../../mongodb-src-r2.2.0/src/SConscript.client	2012-10-14 16:48:25.000000000 +0400
@@ -134,7 +134,7 @@
 # install
 prefix = GetOption("prefix")
 
-env.Install(prefix + "/lib", '${LIBPREFIX}mongoclient${LIBSUFFIX}')
+env.InstallAs(prefix + "/lib", '${LIBPREFIX}mongoclient${LIBSUFFIX}')
 
 for x in clientHeaderDirectories:
     env.Install(prefix + "/include/mongo/" + x,
diff -ru ./src/mongo/SConscript ../../mongodb-src-r2.2.0/src/mongo/SConscript
--- ./src/mongo/SConscript	2012-08-28 09:28:11.000000000 +0400
+++ ../../mongodb-src-r2.2.0/src/mongo/SConscript	2012-10-14 21:34:12.000000000 +0400
@@ -11,7 +11,7 @@
 Import("has_option")
 Import("usesm usev8")
 Import("installSetup")
-Import("darwin windows solaris linux nix")
+Import("darwin windows solaris linux nix freebsd")
 
 env.SConscript(['platform/SConscript',
                 'unittest/SConscript'])
@@ -170,7 +170,7 @@
 
 if usesm:
     env.StaticLibrary('scripting', scripting_common_files + ['scripting/engine_spidermonkey.cpp'],
-                      LIBDEPS=['$BUILD_DIR/third_party/js-1.7/js', 'bson_template_evaluator'])
+                      LIBDEPS=['bson_template_evaluator'], CPPDEFINES=["XP_UNIX"])
 elif usev8:
     env.StaticLibrary('scripting', scripting_common_files + ['scripting/engine_v8.cpp',
                                                              'scripting/v8_db.cpp',
@@ -519,7 +519,7 @@
     if (not has_option( "no-glibc-check" ) and linux and "s3dist" in COMMAND_LINE_TARGETS):
         e.AddPostAction( name, checkGlibc )
 
-    if (solaris or linux) and (not has_option("nostrip")):
+    if (solaris or linux or freebsd) and (not has_option("nostrip")):
         name = e.Command('stripped/%s' % name, name, Copy('$TARGET', '$SOURCE'))[0]
         e.AddPostAction(name, 'strip $TARGET')
 
diff -ru ./src/mongo/scripting/engine_spidermonkey.cpp ../../mongodb-src-r2.2.0/src/mongo/scripting/engine_spidermonkey.cpp
--- ./src/mongo/scripting/engine_spidermonkey.cpp	2012-08-28 09:28:11.000000000 +0400
+++ ../../mongodb-src-r2.2.0/src/mongo/scripting/engine_spidermonkey.cpp	2012-10-14 21:34:33.000000000 +0400
@@ -25,7 +25,7 @@
 #include <boost/date_time/posix_time/posix_time.hpp>
 #endif
 
-#include <third_party/js-1.7/jsdate.h>
+#include <jsdate.h>
 
 #include "mongo/util/mongoutils/str.h"
 
diff -ru ./src/mongo/scripting/engine_spidermonkey.h ../../mongodb-src-r2.2.0/src/mongo/scripting/engine_spidermonkey.h
--- ./src/mongo/scripting/engine_spidermonkey.h	2012-08-28 09:28:11.000000000 +0400
+++ ../../mongodb-src-r2.2.0/src/mongo/scripting/engine_spidermonkey.h	2012-10-14 21:35:21.000000000 +0400
@@ -29,7 +29,7 @@
 #define JS_PUBLIC_DATA(t)   t
 #endif
 
-#include <third_party/js-1.7/jsapi.h>
+#include <jsapi.h>
 
 // END inc hacking