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--- flex-2.6.4.orig/configure.ac 2017-05-03 13:16:37.000000000 -0700
+++ flex-2.6.4/configure.ac 2018-05-26 15:05:50.426997650 -0700
@@ -25,8 +25,10 @@
# autoconf requirements and initialization
AC_INIT([the fast lexical analyser generator],[2.6.4],[flex-help@lists.sourceforge.net],[flex])
+AC_PREREQ([2.60])
AC_CONFIG_SRCDIR([src/scan.l])
AC_CONFIG_AUX_DIR([build-aux])
+AC_USE_SYSTEM_EXTENSIONS
LT_INIT
AM_INIT_AUTOMAKE([1.11.3 -Wno-portability foreign check-news std-options dist-lzip parallel-tests subdir-objects])
AC_CONFIG_HEADER([src/config.h])
@@ -37,8 +39,6 @@ AC_SUBST(SHARED_VERSION_INFO)
# checks for programs
-AM_GNU_GETTEXT([external])
-AM_GNU_GETTEXT_VERSION([0.18])
AC_PROG_YACC
AS_IF([test "$YACC" != 'bison -y'], [
YACC="\${top_srcdir}/build-aux/missing bison -y"
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