--- rpl/configure.ac	2018/12/20 10:09:09	1.226
+++ rpl/configure.ac	2018/12/21 10:56:02	1.228
@@ -13,7 +13,7 @@ READLINE=readline-7.0
 UNITS=units-2.16
 GSL=gsl-2.5
 GPP=gpp-3.0
-GNUPLOT=gnuplot-5.2.3
+GNUPLOT=gnuplot-5.2.5
 FILE=file-5.33
 ICONV=libiconv-1.15
 SQLITE=sqlite-3.26.0
@@ -299,7 +299,7 @@ AC_LINK_IFELSE(
 [SEMAPHORES_NOMMES=-DSEMAPHORES_NOMMES; AC_MSG_RESULT(no)]
 	)
 LDFLAGS=$LIBS
-REG=""
+LIBS=$REG
 else
 	SEMAPHORES_NOMMES=-USEMAPHORES_NOMMES
 fi