Sam James reported that when configuring a package with --disable-nls,
not only BISON_LOCALEDIR expands to empty (which is acceptable since the
value is not used) but also BISON_LOCALEDIR_c expands to empty (which leads
to a C syntax error, see <https://savannah.gnu.org/bugs/?66533>).
This patch fixes it.
2024-12-04 Bruno Haible <br...@clisp.org>
bison-i18n: Ensure BISON_LOCALEDIR_c expands to a C string.
Reported by Holger Hoffstätte via Sam James <s...@gentoo.org>.
* m4/bison-i18n.m4 (BISON_I18N): Define BISON_LOCALEDIR_c and
BISON_LOCALEDIR_c_make in the usual way even when BISON_LOCALEDIR
expands to empty.
diff --git a/m4/bison-i18n.m4 b/m4/bison-i18n.m4
index 3cf0848ca2..e5433a686a 100644
--- a/m4/bison-i18n.m4
+++ b/m4/bison-i18n.m4
@@ -1,5 +1,5 @@
# bison-i18n.m4
-# serial 5
+# serial 6
dnl Copyright (C) 2005-2006, 2009-2024 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -57,27 +57,28 @@ AC_DEFUN([BISON_I18N]
fi
fi
AC_SUBST([BISON_LOCALEDIR])
+ fi
- dnl Define BISON_LOCALEDIR_c and BISON_LOCALEDIR_c_make.
- dnl Find the final value of BISON_LOCALEDIR.
- gl_saved_prefix="${prefix}"
- gl_saved_datarootdir="${datarootdir}"
- gl_saved_localedir="${localedir}"
- gl_saved_bisonlocaledir="${BISON_LOCALEDIR}"
- dnl Unfortunately, prefix gets only finally determined at the end of
- dnl configure.
- if test "X$prefix" = "XNONE"; then
- prefix="$ac_default_prefix"
- fi
- eval datarootdir="$datarootdir"
- eval localedir="$localedir"
- eval BISON_LOCALEDIR="$BISON_LOCALEDIR"
- gl_BUILD_TO_HOST([BISON_LOCALEDIR])
- BISON_LOCALEDIR="${gl_saved_bisonlocaledir}"
- localedir="${gl_saved_localedir}"
- datarootdir="${gl_saved_datarootdir}"
- prefix="${gl_saved_prefix}"
+ dnl Define BISON_LOCALEDIR_c and BISON_LOCALEDIR_c_make.
+ dnl Find the final value of BISON_LOCALEDIR.
+ gl_saved_prefix="${prefix}"
+ gl_saved_datarootdir="${datarootdir}"
+ gl_saved_localedir="${localedir}"
+ gl_saved_bisonlocaledir="${BISON_LOCALEDIR}"
+ dnl Unfortunately, prefix gets only finally determined at the end of
+ dnl configure.
+ if test "X$prefix" = "XNONE"; then
+ prefix="$ac_default_prefix"
fi
+ eval datarootdir="$datarootdir"
+ eval localedir="$localedir"
+ eval BISON_LOCALEDIR="$BISON_LOCALEDIR"
+ gl_BUILD_TO_HOST([BISON_LOCALEDIR])
+ BISON_LOCALEDIR="${gl_saved_bisonlocaledir}"
+ localedir="${gl_saved_localedir}"
+ datarootdir="${gl_saved_datarootdir}"
+ prefix="${gl_saved_prefix}"
+
if test $BISON_USE_NLS = yes; then
AC_DEFINE([YYENABLE_NLS], [1],
[Define to 1 to internationalize bison runtime messages.])
