Update autoconfig tools to build cleanly on Debian bookworm

2 files changed, 11 insertions, 15 deletions

diff --git a/configure.ac b/configure.ac
index db9e3f8..1e44945 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,9 +1,9 @@
 dnl Boilerplate
-AC_INIT([ipset], [7.21], [kadlec@netfilter.org])
+AC_INIT([ipset],[7.21],[kadlec@netfilter.org])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CANONICAL_HOST
 AC_CONFIG_MACRO_DIR([m4])
-AC_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 AM_INIT_AUTOMAKE([foreign subdir-objects tar-pax no-dist-gzip dist-xz])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
@@ -182,7 +182,7 @@ dnl Checks for programs
 
 AC_PROG_CC
 AM_PROG_CC_C_O
-AC_PROG_LIBTOOL
+LT_INIT
 AC_PROG_INSTALL
 AC_PROG_LN_S
 
diff --git a/m4/ax_cflags_gcc_option.m4 b/m4/ax_cflags_gcc_option.m4
index 8cffe5d..b173ed4 100644
--- a/m4/ax_cflags_gcc_option.m4
+++ b/m4/ax_cflags_gcc_option.m4
@@ -80,15 +80,14 @@ AS_VAR_PUSHDEF([VAR],[ax_cv_cflags_gcc_option_$2])dnl
 AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for gcc m4_ifval($2,$2,-option)],
 VAR,[AS_VAR_SET([VAR],["no, unknown"])
  AC_LANG_SAVE
- AC_LANG_C
+ AC_LANG([C])
  ac_save_[]FLAGS="$[]FLAGS"
 for ac_arg dnl
 in "-pedantic -Werror % m4_ifval($2,$2,-option)"  dnl   GCC
    "-pedantic % m4_ifval($2,$2,-option) %% no, obsolete"  dnl new GCC
    #
 do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
-   AC_TRY_COMPILE([],[return 0;],
-   [AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break])
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break],[])
 done
  FLAGS="$ac_save_[]FLAGS"
  AC_LANG_RESTORE
@@ -117,15 +116,14 @@ AS_VAR_PUSHDEF([VAR],[ax_cv_cxxflags_gcc_option_$2])dnl
 AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for gcc m4_ifval($2,$2,-option)],
 VAR,[AS_VAR_SET([VAR],["no, unknown"])
  AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
+ AC_LANG([C++])
  ac_save_[]FLAGS="$[]FLAGS"
 for ac_arg dnl
 in "-pedantic -Werror % m4_ifval($2,$2,-option)"  dnl   GCC
    "-pedantic % m4_ifval($2,$2,-option) %% no, obsolete"  dnl new GCC
    #
 do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
-   AC_TRY_COMPILE([],[return 0;],
-   [AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break])
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break],[])
 done
  FLAGS="$ac_save_[]FLAGS"
  AC_LANG_RESTORE
@@ -153,15 +151,14 @@ AS_VAR_PUSHDEF([VAR],[ax_cv_cflags_gcc_option_$1])dnl
 AC_CACHE_CHECK([m4_ifval($2,$2,FLAGS) for gcc m4_ifval($1,$1,-option)],
 VAR,[AS_VAR_SET([VAR],["no, unknown"])
  AC_LANG_SAVE
- AC_LANG_C
+ AC_LANG([C])
  ac_save_[]FLAGS="$[]FLAGS"
 for ac_arg dnl
 in "-pedantic -Werror % m4_ifval($1,$1,-option)"  dnl   GCC
    "-pedantic % m4_ifval($1,$1,-option) %% no, obsolete"  dnl new GCC
    #
 do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
-   AC_TRY_COMPILE([],[return 0;],
-   [AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break])
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break],[])
 done
  FLAGS="$ac_save_[]FLAGS"
  AC_LANG_RESTORE
@@ -190,15 +187,14 @@ AS_VAR_PUSHDEF([VAR],[ax_cv_cxxflags_gcc_option_$1])dnl
 AC_CACHE_CHECK([m4_ifval($2,$2,FLAGS) for gcc m4_ifval($1,$1,-option)],
 VAR,[AS_VAR_SET([VAR],["no, unknown"])
  AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
+ AC_LANG([C++])
  ac_save_[]FLAGS="$[]FLAGS"
 for ac_arg dnl
 in "-pedantic -Werror % m4_ifval($1,$1,-option)"  dnl   GCC
    "-pedantic % m4_ifval($1,$1,-option) %% no, obsolete"  dnl new GCC
    #
 do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
-   AC_TRY_COMPILE([],[return 0;],
-   [AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break])
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[AS_VAR_SET([VAR],[`echo $ac_arg | sed -e 's,.*% *,,'`]); break],[])
 done
  FLAGS="$ac_save_[]FLAGS"
  AC_LANG_RESTORE