--- SConstruct.orig	2010-09-09 15:18:44.331618166 +0200
+++ SConstruct	2010-09-09 15:43:39.579257085 +0200
@@ -29,9 +29,10 @@
 f.close()
 
 env.CacheDir('/tmp/.zfs-fuse.scons')
-env['CC'] = 'gcc'
-env['LINKFLAGS'] = Split('-pipe -Wall')
-env['CCFLAGS'] = Split('-pipe -Wall -std=c99 -Wno-switch -Wno-unused -Wno-missing-braces -Wno-parentheses -Wno-uninitialized -fno-strict-aliasing -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_REENTRANT -DTEXT_DOMAIN=\\"zfs-fuse\\" ')
+env['CCFLAGS'] = Split('-Wall -std=c99 -Wno-switch -Wno-unused -Wno-missing-braces -Wno-parentheses -Wno-uninitialized -fno-strict-aliasing -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_REENTRANT -DTEXT_DOMAIN=\\"zfs-fuse\\" ')
+
+if 'CC' in os.environ:
+    env.Replace(CC = Split(os.environ['CC']))
 
 if osname == "Linux":
   env.Append(CPPFLAGS = " -DLINUX_AIO")
@@ -59,6 +60,13 @@
 	print "Misconfigured debug level: Neither DEBUG or NDEBUG appears to have been defined: %s" % env['CCFLAGS']
 	sys.exit(1)
 
+if 'CFLAGS' in os.environ:
+    env.Append(CCFLAGS = Split(os.environ['CFLAGS']))
+    env.Replace(CFLAGS = Split(os.environ['CFLAGS']))
+
+if 'LDFLAGS' in os.environ:
+    env.Append(LINKFLAGS = Split(os.environ['LDFLAGS']))
+
 env['CPPPATH'] = []
 
 f = os.popen('uname -m')
--- lib/libumem/SConscript.orig	2010-09-09 15:18:44.498282736 +0200
+++ lib/libumem/SConscript	2010-09-09 15:14:59.000000000 +0200
@@ -1,7 +1,7 @@
 import os
 Import('env')
 
-Command("Makefile", [], ["cd lib/libumem && ./configure"])
+Command("Makefile", [], ['cd lib/libumem && LDFLAGS="%s" CC="%s" CFLAGS="%s" ./configure' % (' '.join(env['LINKFLAGS']),''.join(env['CC']),' '.join(env['CFLAGS']))])
 Command("libumem.a", [Glob('*.c'),'Makefile',Glob('*.h')], ["cd lib/libumem && make && rm -f libumem.a && ln -s .libs/libumem.a"])
 if os.path.isfile("Makefile") and env.GetOption('clean'):
 	Execute(Action(["make -C %s distclean" % (os.path.join(env.Dir("#").abspath, 'lib/libumem'))]))