make Makefile more informative about what julia sysimg build step it …

…is doing

Makefile

@@ -118,25 +118,26 @@ $(build_private_libdir)/sys%ji: $(build_private_libdir)/sys%o
 
 $(build_private_libdir)/sys%$(SHLIB_EXT): $(build_private_libdir)/sys%o
 ifneq ($(USEMSVC), 1)
- $(CXX) -shared -fPIC -L$(build_private_libdir) -L$(build_libdir) -L$(build_shlibdir) -o $@ $< \
+ @$(call PRINT_LINK, $(CXX) -shared -fPIC -L$(build_private_libdir) -L$(build_libdir) -L$(build_shlibdir) -o $@ $< \
  $$([ $(OS) = Darwin ] && echo '' -Wl,-undefined,dynamic_lookup || echo '' -Wl,--unresolved-symbols,ignore-all ) \
- $$([ $(OS) = WINNT ] && echo '' -ljulia -lssp)
+ $$([ $(OS) = WINNT ] && echo '' -ljulia -lssp))
  $(DSYMUTIL) $@
 else
  @true
 endif
 
 $(build_private_libdir)/sys0.o:
- @$(QUIET_JULIA) cd base && \
- $(call spawn,$(JULIA_EXECUTABLE)) --build $(call cygpath_w,$(build_private_libdir)/sys0) sysimg.jl
+ @$(call PRINT_JULIA, cd base && \
+ $(call spawn,$(JULIA_EXECUTABLE)) --build $(call cygpath_w,$(build_private_libdir)/sys0) sysimg.jl)
 
 BASE_SRCS := $(wildcard base/*.jl base/*/*.jl base/*/*/*.jl)
 
+,:=,
 $(build_private_libdir)/sys.o: VERSION $(BASE_SRCS) $(build_datarootdir)/julia/helpdb.jl $(build_private_libdir)/sys0.$(SHLIB_EXT)
- @$(QUIET_JULIA) cd base && \
+ @$(call PRINT_JULIA, cd base && \
  $(call spawn,$(JULIA_EXECUTABLE)) --build $(call cygpath_w,$(build_private_libdir)/sys) \
  -J$(call cygpath_w,$(build_private_libdir))/$$([ -e $(build_private_libdir)/sys.ji ] && echo sys.ji || echo sys0.ji) -f sysimg.jl \
- || { echo "*** This error is usually fixed by running 'make clean'. If the error persists, try 'make cleanall'. ***" && false; }
+ || { echo '*** This error is usually fixed by running `make clean`. If the error persists$(,) try `make cleanall`. ***' && false; } )
 
 run-julia-debug run-julia-release: run-julia-%:
  $(MAKE) $(QUIET_MAKE) run-julia JULIA_EXECUTABLE="$(JULIA_EXECUTABLE_$*)"