From: Robert Pluim <rpluim@gmail.com>
Date: Mon, 5 Jun 2023 09:57:03 +0000 (+0200)
Subject: Don't feed the awk scripts into themselves
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=ba349aa32e98a53146794197c316f4765598ddbd;p=emacs.git

Don't feed the awk scripts into themselves

* admin/unidata/Makefile.in (${unidir}/charscript.el,
${unidir}/emoji-zwj.el): Define variables for the required sources and
pass those to awk instead of $^, since the latter includes the awk
script itself.
---

diff --git a/admin/unidata/Makefile.in b/admin/unidata/Makefile.in
index cccd85213f1..c7737583700 100644
--- a/admin/unidata/Makefile.in
+++ b/admin/unidata/Makefile.in
@@ -105,19 +105,23 @@ ${unidir}/idna-mapping.el: ${srcdir}/unidata-gen.el \
 charscript.el: ${unidir}/charscript.el
 
 blocks = ${srcdir}/blocks.awk
-
+blocks_sources = ${srcdir}/Blocks.txt ${srcdir}/emoji-data.txt
 ${unidir}/charscript.el: ${blocks}
 
-${unidir}/charscript.el: ${srcdir}/Blocks.txt ${srcdir}/emoji-data.txt
-	$(AM_V_GEN)$(AWK) -f ${blocks} $^ > $@
+# Don't use $^, since that includes the awk script.
+${unidir}/charscript.el: ${blocks_sources}
+	$(AM_V_GEN)$(AWK) -f ${blocks} ${blocks_sources} > $@
 
 .PHONY: emoji-zwj.el
 emoji-zwj.el: ${unidir}/emoji-zwj.el
 
 zwj = ${srcdir}/emoji-zwj.awk
+zwj_sources = ${srcdir}/emoji-zwj-sequences.txt $(srcdir)/emoji-sequences.txt
+${unidir}/emoji-zwj.el: ${zwj}
 
-${unidir}/emoji-zwj.el: ${srcdir}/emoji-zwj-sequences.txt $(srcdir)/emoji-sequences.txt ${zwj}
-	$(AM_V_GEN)$(AWK) -f ${zwj} $^ > $@
+# Don't use $^, since that includes the awk script.
+${unidir}/emoji-zwj.el: ${zwj_sources}
+	$(AM_V_GEN)$(AWK) -f ${zwj} ${zwj_sources} > $@
 
 .PHONY: clean bootstrap-clean distclean maintainer-clean gen-clean