Make multifile recovery recipes dry-run-friendly.

src/Makefile.am

@@ -290,13 +290,15 @@ cdiFortran.c: cdi.h make_fint.c
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) make_fint
 	$(AM_V_GEN)$(top_builddir)/libtool --mode=execute ./make_fint -o $(@D) $<
 cdi.inc: cdiFortran.c
-	$(AM_V_at)test -f $@ || { rm -f $<; $(MAKE) $(AM_MAKEFLAGS) $<; }
+	$(AM_V_at)test -f $@ || rm -f $<
+	$(AM_V_at)test -f $@ || $(MAKE) $(AM_MAKEFLAGS) $<
 
 cdipioFortran.c: cdipio.h make_fint.c
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) make_fint
 	$(AM_V_GEN)$(top_builddir)/libtool --mode=execute ./make_fint -o $(@D) $<
 cdipio.inc: cdipioFortran.c
-	$(AM_V_at)test -f $@ || { rm -f $<; $(MAKE) $(AM_MAKEFLAGS) $<; }
+	$(AM_V_at)test -f $@ || rm -f $<
+	$(AM_V_at)test -f $@ || $(MAKE) $(AM_MAKEFLAGS) $<
 
 cdipioFortran.c: cdiFortran.c
 
@@ -315,7 +317,8 @@ MO_CDI.$(FCMODEXT): mo_cdi.lo
 else
 mo_cdi.$(FCMODEXT): mo_cdi.lo
 endif
-	$(AM_V_at)test -f $@ || { rm -f $<; $(MAKE) $(AM_MAKEFLAGS) $<; }
+	$(AM_V_at)test -f $@ || rm -f $<
+	$(AM_V_at)test -f $@ || $(MAKE) $(AM_MAKEFLAGS) $<
 #
 cmake/cdi/cdi-config.cmake: cmake/cdi/cdi-config.cmake.in ../config.status
 	(cd .. ; ./config.status src/cmake/cdi/cdi-config.cmake)