From a50ee744ea3b86f7a0fea4df889d4662dbe9bfe2 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sun, 2 Jun 2024 22:07:03 +0000
Subject: slibtool.m4: SLIBTOOL_PROG_LEX: initialize and propagate
 LEX_OUTPUT_ROOT.

---
 m4/slibtool.m4 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/m4/slibtool.m4 b/m4/slibtool.m4
index 25c37a3..bf1c4e1 100644
--- a/m4/slibtool.m4
+++ b/m4/slibtool.m4
@@ -402,8 +402,11 @@ if [[ -z "${LEX}" ]]; then
 	AC_CHECK_PROG([LEX],[lex],[lex])
 fi
 
+slibtool_lex_output_root="${ac_cv_prog_lex_root:-lex.yy}"
+
 AC_SUBST([LEX])
 AC_SUBST([LEXLIB])
+AC_SUBST([LEX_OUTPUT_ROOT],["${slibtool_lex_output_root}"])
 ])
 
 
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