--- gnutrition/configure.ac	2026/05/17 20:09:43	1.2
+++ gnutrition/configure.ac	2026/05/17 20:30:05	1.3
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
-# $Id: configure.ac,v 1.2 2026/05/17 20:09:43 asm Exp $
+# $Id: configure.ac,v 1.3 2026/05/17 20:30:05 asm Exp $
 #
 # configure.ac for GNUtrition
 #
@@ -41,9 +41,10 @@ PKG_CHECK_MODULES([GIO], [gio-2.0], [hav
 AM_CONDITIONAL([BUILD_GTK], [test "x$have_gtk" = xyes -a "x$have_gio" = xyes])
 
 # Optional: TexInfo tools.
-AC_CHECK_PROGS([TEXI2HTML], [texi2html], [have_texi2html=yes], [have_texi2html=no])
-AC_CHECK_PROGS([TEXI2PDF], [texi2pdf], [have_texi2pdf=yes], [have_texi2pdf=no])
-AM_CONDITIONAL([HAVE_TEXINFO], [test "x$have_texi2html" != "no" && test "x$texi2pdf" != "no"])
+AC_CHECK_PROGS([MAKEINFO], [makeinfo], [no])
+AC_CHECK_PROGS([TEXIHTML], [texi2html], [no])
+AC_CHECK_PROGS([TEXIPDF], [texi2pdf], [no])
+AM_CONDITIONAL([HAVE_TEXINFO], [test "$MAKEINFO" != "no" && test "$TEXIHTML" != "no" && test "$TEXIPDF" != "no"])
 
 AC_CONFIG_FILES([Makefile])
 AC_CONFIG_HEADERS([config.h])