1 files changed, 1 insertions, 1 deletions
diff --git a/configure b/configure
index 18a86f396b..995161a3a0 100755
--- a/configure
+++ b/configure
@@ -1903,7 +1903,7 @@ AS_O='-o $@'
 CC_O='-o $@'
 CXX_O='-o $@'
 
-host_cflags='-D_ISOC99_SOURCE -O3 -g'
+host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
 host_libs='-lm'
 
 target_path='$(CURDIR)'