--- rpl/scripts/mkrplso.in	2010/06/20 13:25:27	1.3
+++ rpl/scripts/mkrplso.in	2010/06/20 13:32:26	1.4
@@ -119,7 +119,7 @@ if [ $COMPILATION_SEULE = "VRAI" ]; then
 	echo +++Compiler for RPL/2 version @VERSION@
 	gfortran -x c $ARGUMENTS_G77 -fPIC -Wall -DRPLCONFIG $OPTIONS $CFLAGS\
 			-I$(which $0 | cut -d '/' -f -$(($P-1)))/include -funsigned-char\
-			-D_d_version_rpl=\"@VERSION@\"
+			-D_d_version_rpl=\"@VERSION@\" -std=gnu99
 else
 	echo +++Linker for RPL/2 version @VERSION@
 	gfortran $ARGUMENTS_G77 -shared -fPIC -Wall -DRPLCONFIG $OPTIONS $CFLAGS\