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-rw-r--r--ext/rbconfig/sizeof/depend5
1 files changed, 4 insertions, 1 deletions
diff --git a/ext/rbconfig/sizeof/depend b/ext/rbconfig/sizeof/depend
index 56564b1b99..4243785d43 100644
--- a/ext/rbconfig/sizeof/depend
+++ b/ext/rbconfig/sizeof/depend
@@ -1,4 +1,7 @@
-sizes.c: $(top_srcdir)/tool/generic_erb.rb $(top_srcdir)/template/sizes.c.tmpl $(top_srcdir)/configure.in $(top_srcdir)/ext/rbconfig/sizeof/extconf.rb
+{$(VPATH)}sizes.c: $(top_srcdir)/tool/generic_erb.rb \
+ $(top_srcdir)/template/sizes.c.tmpl \
+ $(top_srcdir)/configure.in \
+ $(top_srcdir)/ext/rbconfig/sizeof/extconf.rb
$(Q) $(RUBY) $(top_srcdir)/tool/generic_erb.rb --output=$@ \
$(top_srcdir)/template/sizes.c.tmpl \
$(top_srcdir)/configure.in \