--- rpl/Makefile.am	2012/07/03 09:24:21	1.53
+++ rpl/Makefile.am	2012/07/04 13:19:40	1.54
@@ -263,8 +263,11 @@ all: $(top_builddir)/tools/@NCURSES@/lib
 		$(top_builddir)/tools/@UNITS@/units$(EXEEXT) \
 		$(top_builddir)/tools/@SIGSEGV@/src/.libs/@LIB_PREFIX@sigsegv.a \
 		@LIBRPLCAS@ @LIBMOTIF@
-	if [ -n $($(MAKE) -v | grep "^GNU Make") ]; then \
-		@echo "Please use GNU Make"; \
+	@if [ -n $(shell $(MAKE) -v | grep "^GNU Make") ]; then \
+		echo; \
+		echo MAKE=$(MAKE); \
+		echo "Please use GNU Make !"; \
+		echo; \
 		false; \
 	fi
 # Cette règle n'est là que pour forcer la compilation de Gnuplot.