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| Newsgroups | gnu.utils.help |
| Date | Mon, 9 Mar 2020 03:14:52 -0700 (PDT) |
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| Subject | Re: gmake and filter inside an implicit rule |
| From | igx31 <jean.marc.challier@gmail.com> |
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| Xref | csiph.com gnu.utils.help:318 |
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Le dimanche 12 mai 2002 20:52:19 UTC+2, Riccardo de Maria a écrit :
> I've problems using filter function to find prerequisites.
> [...]
Hello,
We've been having the same issue in one of our projects, and had to resort to using Secondary Expansion for that - cf. https://www.gnu.org/software/make/manual/html_node/Secondary-Expansion.html
More precisely, we had to build several libraries, named lib/libxxxx.a, from sources named src/xxxx_*.c. This is the rule we have written :
.SECONDEXPANSION:
$(LIB_DIR)/$(LIB_PRE)%$(LIB_SUF): $$(filter $(OBJ_DIR)/%_$\%$(OBJ_SUF), $(OBJ))
$(AR) $(ARFLAGS) $@ $^
In your case, I'm pretty sure it would look something like that (without using your own variables, but it will probably be easy to translate) :
EPS_FILES=$(wildcard cap*.eps)
.SECONDEXPANSION:
cap%.dvi: cap%.tex $$(filter cap%-$\%.eps, $(EPS_FILES))
@echo Building $@ from $^
Hope this helps,
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Re: gmake and filter inside an implicit rule igx31 <jean.marc.challier@gmail.com> - 2020-03-09 03:14 -0700
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