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More problems with aggressive parallel builds (make -j).
The three rules:
%-test.xdy : %.pl
$(PERL) -I$(srcdir) $< $*
%-doc.tex : %.pl
$(PERL) -I$(srcdir) $< $*
%.xdy : %.pl
$(PERL) -I$(srcdir) $< $*
must not run simultaneously or %-test.xdy could be destroyed.
diff -ur -x Makefile.in xindy.orig/make-rules/alphabets/Makefile.am xindy/make-rules/alphabets/Makefile.am
--- xindy/make-rules/alphabets/Makefile.am 2009-12-17 14:53:07.000000000 +0100
+++ xindy/make-rules/alphabets/Makefile.am 2009-12-02 20:34:28.000000000 +0100
@@ -892,14 +892,24 @@
%-lang.xdy : %-test.xdy
sed -n '1,10 p' <$< >$@
+# Running "$(PERL) -I$(srcdir) $< $*" creates %-test.xdy, %-doc.tex, %.raw,
+# and %.xdy; %-test.xdy is finished first. We must not run this command
+# several times simultaneously (for details see Automake manual 27.9).
%-test.xdy : %.pl
$(PERL) -I$(srcdir) $< $*
-%-doc.tex : %.pl
- $(PERL) -I$(srcdir) $< $*
-
-%.xdy : %.pl
- $(PERL) -I$(srcdir) $< $*
+%-doc.tex %.xdy : %-test.xdy
+ @if test -f $@; then :; else \
+ trap 'rm -rf $*.lock $<' 1 2 13 15; \
+ if mkdir $*.lock 2>/dev/null; then \
+ rm -f $<; \
+ $(MAKE) $(AM_MAKEFLAGS) $<; \
+ result=$$?; rm -rf $*.lock; exit $$result; \
+ else \
+ while test -d $*.lock; do sleep 1; done; \
+ test -f $<; \
+ fi; \
+ fi
SUBDIRS = \
albanian \
@@ -1264,5 +1274,3 @@
CLEANFILES = $(ALPHABETS) $(DOC_CLEAN)
-.NOTPARALLEL:
-
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