--- a/configure	Thu Mar 02 00:17:34 2017 +0100
+++ b/configure	Thu Mar 02 00:27:46 2017 +0100
@@ -21,7 +21,7 @@
 PRNG=
 PRNGLIBS=
 
-CFLAGS="-fPIC -Wall -pedantic -std=c89"
+CFLAGS="-fPIC -Wall -pedantic -std=c99"
 LDFLAGS="-shared"
 
 IDN_LIBRARY="idn"