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[configure] Fix AX_PROG_FLEX/AC_PROG_LEX warning (#1839)

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ejurgensen 2025-01-20 09:56:40 +01:00 committed by Alain Nussbaumer
parent ca865ecbe0
commit a4cc4fde8c
1 changed files with 7 additions and 1 deletions
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8
m4/ax_prog_flex.m4
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@ -45,7 +45,13 @@
#serial 13
AC_DEFUN([AX_PROG_FLEX], [
AC_REQUIRE([AM_PROG_LEX])
dnl --- Start of modified macro ---
dnl Original uses 'AC_REQUIRE([AM_PROG_LEX])', but that produces a deprecation
dnl warning since autoconf 2.70, because the underlying AC_PROG_LEX now
dnl requires an argument. However, we cannot specify it through AM_PROG_LEX
dnl until automake 1.17, so users with that will still get the warning.
AM_PROG_LEX([noyywrap])
dnl --- End of modified macro ---
AC_REQUIRE([AC_PROG_EGREP])
AC_CACHE_CHECK([if flex is the lexer generator],[ax_cv_prog_flex],[