diff --git a/wscript b/wscript
index c74bb97..6d3cfc0 100644
--- a/wscript
+++ b/wscript
@@ -34,8 +34,7 @@ def configure(conf):
 		'-std=gnu99', '-Wall', '-Wshadow', '-W', '-pedantic', '-g', '-g2', '-O2', '-Wmissing-declarations',
 		'-Wdeclaration-after-statement', '-Wno-pointer-sign', '-Wcast-align', '-Winline', '-Wsign-compare',
 		'-Wnested-externs', '-Wpointer-arith', '-Wbad-function-cast', '-Wmissing-prototypes',
-		'-fPIC', '-D_GNU_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE_SOURCE',
-		'-D_LARGE_FILES', '-fno-strict-aliasing',
+		'-fPIC', '-fno-strict-aliasing',
 	]
 
 	conf.check_tool('compiler_cc')