On Mon, Aug 30, 2021 at 03:35:23PM +0000, REIX, Tony wrote:
> Yes, trying to use the create lib$(NAME).exp from $(SHLIB_EXPORTS) when it
> exists was my first idea, too.
> However, I do not master (or I forgot) this kind of "if...." in a Makefile
> and I was unable to find a solution by reading Makefile manuals or by
> searching for a similar example. So, I did it in an easier (to me!) and
> quicker way: merge with a new command line in the Makefile rule.
> Now that we have a clear understanding of what is happenning, I may have a
> deeper look at a clean Makefile solution. However, if you know how to manage
> this, I would really appreciate some example. I'm asking my colleague too if
> he can help me here.
Here's an example from elsewhere in Makefile.shlib:
# If SHLIB_EXPORTS is set, the rules below will build a .def file from that.
# Else we just use --export-all-symbols.
ifeq (,$(SHLIB_EXPORTS))
$(shlib): $(OBJS) | $(SHLIB_PREREQS)
$(CC) $(CFLAGS) -shared -static-libgcc -o $@ $(OBJS) $(LDFLAGS)
$(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) -Wl,--export-all-symbols
-Wl,--out-implib=$(stlib)
else
DLL_DEFFILE = lib$(NAME)dll.def
$(shlib): $(OBJS) $(DLL_DEFFILE) | $(SHLIB_PREREQS)
$(CC) $(CFLAGS) -shared -static-libgcc -o $@ $(OBJS) $(DLL_DEFFILE)
$(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) -Wl,--out-implib=$(stlib)
UC_NAME = $(shell echo $(NAME) | tr 'abcdefghijklmnopqrstuvwxyz'
'ABCDEFGHIJKLMNOPQRSTUVWXYZ')
$(DLL_DEFFILE): $(SHLIB_EXPORTS)
echo 'LIBRARY LIB$(UC_NAME).dll' >$@
echo 'EXPORTS' >>$@
sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@
endif
