testsuite/dl: Add C++ by default for DL tests which use C++.

- Add AM C++ support to the testsuite configure.ac script.
- Fix the dependences in the  DL tests.

Closes #3024.

testsuites/libtests/configure.ac

@@ -12,6 +12,7 @@ AM_INIT_AUTOMAKE([no-define foreign 1.12.2])
 AM_MAINTAINER_MODE
 
 RTEMS_ENABLE_CXX
+AC_PROG_CXX
 
 RTEMS_ENV_RTEMSBSP
 RTEMS_CHECK_RTEMS_TEST_NO_PAUSE

testsuites/libtests/dl01/Makefile.am

@@ -14,6 +14,8 @@ AM_CPPFLAGS += -I$(top_srcdir)/../support/include
 LINK_OBJS = $(dl01_OBJECTS)
 LINK_LIBS = $(dl01_LDLIBS)
 
+init.$(OBJEXT): dl-tar.h
+
 dl-o1.o: dl-o1.c
 
 dl.tar: dl-o1.o
@@ -29,14 +31,9 @@ dl-tar.h: dl.tar
 	$(BIN2C) -H $< $@
 CLEANFILES += dl-tar.h
 
-dl01.pre$(EXEEXT): $(dl01_OBJECTS) $(dl01_DEPENDENCIES)
-	@rm -f dl01.pre$(EXEEXT)
-	$(make-exe)
-	rm -f dl01.pre.ralf
-
-dl01.pre: dl01.pre$(EXEEXT)
-	mv $< $@
-CLEANFILES += dl01.pre
+dl01.pre: $(dl01_OBJECTS) $(dl01_DEPENDENCIES)
+	@rm -f dl01.pre
+	$(LINK_APP)
 
 dl-sym.o: dl01.pre
 	rtems-syms -e -c "$(CFLAGS)" -o $@ $<

testsuites/libtests/dl02/Makefile.am

@@ -14,6 +14,8 @@ AM_CPPFLAGS += -I$(top_srcdir)/../support/include
 LINK_OBJS = $(dl02_OBJECTS)
 LINK_LIBS = $(dl02_LDLIBS)
 
+init.$(OBJEXT): dl-tar.h
+
 dl-o1.o: dl-o1.c
 
 dl-o2.o: dl-o2.c
@@ -31,14 +33,9 @@ dl-tar.h: dl.tar
 	$(BIN2C) -H $< $@
 CLEANFILES += dl-tar.h
 
-dl02.pre$(EXEEXT): $(dl02_OBJECTS) $(dl02_DEPENDENCIES)
-	@rm -f dl02.pre$(EXEEXT)
-	$(make-exe)
-	rm -f dl02.pre.ralf
-
-dl02.pre: dl02.pre$(EXEEXT)
-	mv $< $@
-CLEANFILES += dl02.pre
+dl02.pre: $(dl02_OBJECTS) $(dl02_DEPENDENCIES)
+	@rm -f dl02.pre
+	$(LINK_APP)
 
 dl-sym.o: dl02.pre
 	rtems-syms -e -c "$(CFLAGS)" -o $@ $<

testsuites/libtests/dl04/Makefile.am

@@ -15,6 +15,8 @@ AM_CPPFLAGS += -I$(top_srcdir)/../support/include
 LINK_OBJS = $(dl04_OBJECTS)
 LINK_LIBS = $(dl04_LDLIBS)
 
+init.$(OBJEXT): dl-tar.h
+
 dl-o4.o: dl-o4.cpp
 
 dl.tar: dl-o4.o
@@ -30,14 +32,9 @@ dl-tar.h: dl.tar
 	$(BIN2C) -H $< $@
 CLEANFILES += dl-tar.h
 
-dl04.pre$(EXEEXT): $(dl04_OBJECTS) $(dl04_DEPENDENCIES)
-	@rm -f dl04.pre$(EXEEXT)
-	$(make-exe)
-	rm -f dl04.pre.ralf
-
-dl04.pre: dl04.pre$(EXEEXT)
-	mv $< $@
-CLEANFILES += dl04.pre
+dl04.pre: $(dl04_OBJECTS) $(dl04_DEPENDENCIES)
+	@rm -f dl04.pre
+	$(LINK_APP)
 
 dl-sym.o: dl04.pre
 	rtems-syms -e -c "$(CFLAGS)" -o $@ $<

testsuites/libtests/dl05/Makefile.am

@@ -14,6 +14,8 @@ AM_CPPFLAGS += -I$(top_srcdir)/../support/include
 LINK_OBJS = $(dl05_OBJECTS)
 LINK_LIBS = $(dl05_LDLIBS)
 
+init.$(OBJEXT): dl-tar.h
+
 dl-o5.o: dl-o5.cpp
 
 dl.tar: dl-o5.o
@@ -29,15 +31,10 @@ dl-tar.h: dl.tar
 	$(BIN2C) -H $< $@
 CLEANFILES += dl-tar.h
 
-dl05.pre$(EXEEXT): $(dl05_OBJECTS) $(dl05_DEPENDENCIES)
-	@rm -f dl05.pre$(EXEEXT)
+dl05.pre: $(dl05_OBJECTS) $(dl05_DEPENDENCIES)
+	@rm -f dl05.pre
 	$(LINK.cc) $(CPU_CFLAGS) $(AM_CFLAGS) $(AM_LDFLAGS) \
-		    -o $(basename $@)$(EXEEXT) $(LINK_OBJS) $(LINK_LIBS)
-	rm -f dl05.pre.ralf
-
-dl05.pre: dl05.pre$(EXEEXT)
-	mv $< $@
-CLEANFILES += dl05.pre
+		    -o $@ $(LINK_OBJS) $(LINK_LIBS)
 
 dl-sym.o: dl05.pre
 	rtems-syms -e -c "$(CFLAGS)" -o $@ $<