diff --git a/config/m4/compiler.m4 b/config/m4/compiler.m4
index 7713bd669e..3e0b0e347a 100644
--- a/config/m4/compiler.m4
+++ b/config/m4/compiler.m4
@@ -58,7 +58,7 @@ AC_DEFUN([CHECK_SPECIFIC_ATTRIBUTE], [
         #
         # Try to compile using the C compiler
         #
-        AC_TRY_COMPILE([$3],[],
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$3]],[[]])],
                        [ucx_cv_attribute_[$1]=1],
                        [ucx_cv_attribute_[$1]=0])
 	CFLAGS="$SAVE_CFLAGS"
@@ -73,7 +73,7 @@ AC_DEFUN([CHECK_SPECIFIC_ATTRIBUTE], [
 #  Enable/disable turning on machine-specific optimizations
 #
 AC_ARG_ENABLE(optimizations,
-              AC_HELP_STRING([--enable-optimizations],
+              AS_HELP_STRING([--enable-optimizations],
                              [Enable non-portable machine-specific CPU optimizations, default: NO]),
               [],
               [enable_optimizations=no])
@@ -88,7 +88,7 @@ AC_ARG_ENABLE(optimizations,
 AC_DEFUN([COMPILER_CPU_OPTIMIZATION],
 [
     AC_ARG_WITH([$1],
-                [AC_HELP_STRING([--with-$1], [Use $2 compiler option.])],
+                [AS_HELP_STRING([--with-$1], [Use $2 compiler option.])],
                 [],
                 [with_$1=$enable_optimizations])
 
diff --git a/config/m4/sysdep.m4 b/config/m4/sysdep.m4
index 27f7888038..51d2c2f8ea 100644
--- a/config/m4/sysdep.m4
+++ b/config/m4/sysdep.m4
@@ -21,7 +21,7 @@ AC_CHECK_LIB([rt], [timer_create], [], AC_MSG_ERROR([librt not found]))
 #
 AC_CHECK_HEADERS([libgen.h])
 AC_CHECK_DECLS([asprintf, basename, fmemopen], [],
-				AC_MSG_ERROR([GNU string extensions not found]), 
+				AC_MSG_ERROR([GNU string extensions not found]),
 				[#define _GNU_SOURCE 1
 				 #include <string.h>
 				 #include <stdio.h>
@@ -36,14 +36,14 @@ AC_CHECK_DECLS([asprintf, basename, fmemopen], [],
 # Valgrind support
 #
 AC_ARG_WITH([valgrind],
-    AC_HELP_STRING([--with-valgrind],
+    AS_HELP_STRING([--with-valgrind],
                    [Enable Valgrind annotations (small runtime overhead, default NO)]),
     [],
     [with_valgrind=no]
 )
 AS_IF([test "x$with_valgrind" = xno],
       [AC_DEFINE([NVALGRIND], 1, [Define to 1 to disable Valgrind annotations.])],
-      [AS_IF([test ! -d $with_valgrind], 
+      [AS_IF([test ! -d $with_valgrind],
               [AC_MSG_NOTICE([Valgrind path was not defined, guessing ...])
                with_valgrind=/usr], [:])
         AC_CHECK_HEADER([$with_valgrind/include/valgrind/memcheck.h], [],
diff --git a/configure.ac b/configure.ac
index df459046c4..a4499308a9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2001-2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# Copyright (c) 2001-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # This software product is a proprietary product of Mellanox Technologies Ltd.
 # (the "Company") and all right, title, and interest and to the software product,
 # including all associated intellectual property rights, are and shall
@@ -10,6 +10,7 @@
 # $COPYRIGHT$
 # $HEADER$
 
+AC_PREREQ([2.63])
 define([ucc_ver_major], 1)
 define([ucc_ver_minor], 2)
 define([ucc_ver_patch], 0)
@@ -27,7 +28,6 @@ AC_INIT([ucc], [ucc_ver_major.ucc_ver_minor])
 : ${CXXFLAGS=""}
 
 AC_USE_SYSTEM_EXTENSIONS
-AC_GNU_SOURCE
 AC_CONFIG_HEADERS([config.h])
 
 UCC_TOP_BUILDDIR="`pwd`"
@@ -73,8 +73,7 @@ AM_PROG_AS
 AC_PROG_LN_S
 AC_PROG_MKDIR_P
 AC_PROG_INSTALL
-AC_PROG_LIBTOOL
-AC_HEADER_STDC
+LT_INIT
 CFLAGS="$CFLAGS_save"
 
 AC_CHECK_SIZEOF(float)