diff -Naur btscanner-2.1/configure.in btscanner-2.1.new/configure.in
--- btscanner-2.1/configure.in	2005-11-21 14:56:56.000000000 +0100
+++ btscanner-2.1.new/configure.in	2009-04-29 21:50:42.000000000 +0200
@@ -63,13 +63,7 @@
 AC_HAVE_LIBRARY(xml2,,[AC_MSG_ERROR([libxml2 not found])])
 
 # CFLAGS
-CFLAGS="$CFLAGS -Wall -pthread -Wshadow -Wbad-function-cast \
-  -Wformat -Wimplicit-function-dec -Wparentheses -Wsign-compare \
-  -Wstrict-prototypes -Wtrigraphs -Wundef -Wuninitialized \
-  -W -Wunused -Wformat-security -Wmissing-braces -Wbad-function-cast \
-  -Wcast-qual -falign-functions -falign-labels -falign-loops\
-  -pedantic -fstrict-aliasing -D_GNU_SOURCE -std=c99"
-#  -fstack-check -fbounds-check"
+CFLAGS="$CFLAGS -D=_GNU_SOURCE -std=c99"
 
 # cfg
 AC_MSG_CHECKING(the location of the config file)