docs/libcurl: make portability fix

Using $< in a non-suffix rule context is a GNU make idiom.  This bug was
introduced in 7.41.0.

diff --git a/docs/libcurl/Makefile.am b/docs/libcurl/Makefile.am
index 00ef3c517d6cfb22eb3184146e2fce449dc183f6..d208bf6b228d9c928935eacbb3973732977cce8e 100644 (file)
--- a/docs/libcurl/Makefile.am
+++ b/docs/libcurl/Makefile.am
@@ -94,7 +94,7 @@ MAN2HTML= roffit --mandir=. < $< >$@
 SUFFIXES = .3 .html
 
 libcurl-symbols.3: $(srcdir)/symbols-in-versions $(srcdir)/mksymbolsmanpage.pl
-       perl $(srcdir)/mksymbolsmanpage.pl < $< > $@
+       perl $(srcdir)/mksymbolsmanpage.pl < $(srcdir)/symbols-in-versions > $@
 
 html: $(HTMLPAGES)
        cd opts; make html