This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: plugin includes for MELT
Ralf Wildenhues wrote:
Hello Basile,
A mere quick portability review:
A big thanks
* Basile STARYNKEVITCH wrote on Thu, Feb 28, 2008 at 05:39:47PM CET:
compile-basilys-defs:
echo '#generated compile-basilys-defs' > $@
echo 'ALL_CFLAGS="' $(ALL_CFLAGS) '"' >> $@
echo 'ALL_CPPFLAGS="' -I$(PWD) $(ALL_CPPFLAGS) '"' >> $@
You should output to a temporary file and mv that to the target.
That avoids incomplete (yet seemingly up to date) files when the
user aborts with CTRL-\. See other targets that do similar.
run-basilys.d: run-basilys.h \
$(CONFIG_H) $(SYSTEM_H) $(TIMEVAR_H) $(TM_H) $(TREE_H) $(GGC_H) \
tree-pass.h basilys.h gt-basilys.h
$(CC) -MT run-basilys-deps -MMD $(ALL_CFLAGS) $(ALL_CPPFLAGS) $<
The build compiler may not be gcc and may not understand -MT and -MMD.
Yes, I know. But how can I avoid that?
Wasn't there a proposal to use depcomp in gcc a while ago?
What is depcomp exactly? Apparently there is a depcomp file at top of
GCC sourcedir. What exactly for? It appears in libcpp/Makefile.in but I
am not sure to understand fully how to use it.
Anyway, I do not plain to run my MELT when host compiler is not GCC...
Actually, it could happen that MELT generated C files uses GCC extension
(they don't use them yet)
run-basilys-deps:
mkdir -p $(melt_build_include_dir); \
mkdir -p is not portable, use $(mkinstalldirs).
Is $(mkinstalldirs) usable for non-installed directories? (in other
words, it does not do any chown or chmod?
for f in $^ ; do \
cf=$(echo $$f | sed -q ":^$(srcdir)/config/:$(melt_build_include_dir)/config:"); \
Did you mean `echo ... ` here? make will interpret $(echo ...) wrongly,
Yes!
I think this command will do nothing. Also, I think two spaces extra
indentation is normal in the GCC Makefile command lines.
"sed -q" is not portable, but "sed -n" is. Also, your sed script looks
very weird. Did you mean to use the 's' command? If yes, you rely on
"$(srcdir)/config/" not containing any colons nor any other characters
special to sed. You might want to use '|' as delimiter instead of ':'.
if [ -n "$$cf" ] ; then \
cp -va $$f $$cf ; \
"cp -va" is not portable. You can use cp -pR.
Actually -p is enough; I'm copying files only!
else \
cp -va $$f $(melt_build_include_dir)/ ; \
Likewise.
Thanks for your input. It helps a lot.
Regards.
--
Basile STARYNKEVITCH http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
8, rue de la Faiencerie, 92340 Bourg La Reine, France
*** opinions {are only mines, sont seulement les miennes} ***