[bison.git] / m4 / m4.m4

# serial 1

# BISON_AC_PROG_GNU_M4
# --------------------
# Check for GNU m4, at least 1.3 (supports frozen files).
AC_DEFUN([BISON_AC_PROG_GNU_M4],
[AC_PATH_PROGS(M4, gm4 gnum4 m4, m4)
AC_CACHE_CHECK(whether m4 supports frozen files, ac_cv_prog_gnu_m4,
[ac_cv_prog_gnu_m4=no
if test x"$M4" != x; then
  case `$M4 --help < /dev/null 2>&1` in
    *reload-state*) ac_cv_prog_gnu_m4=yes ;;
  esac
fi])])
Commit	Line	Data
e79137ac AD	1	# serial 1
	2
	3	# BISON_AC_PROG_GNU_M4
	4	# --------------------
	5	# Check for GNU m4, at least 1.3 (supports frozen files).
	6	AC_DEFUN([BISON_AC_PROG_GNU_M4],
	7	[AC_PATH_PROGS(M4, gm4 gnum4 m4, m4)
	8	AC_CACHE_CHECK(whether m4 supports frozen files, ac_cv_prog_gnu_m4,
	9	[ac_cv_prog_gnu_m4=no
	10	if test x"$M4" != x; then
	11	case `$M4 --help < /dev/null 2>&1` in
	12	reload-state) ac_cv_prog_gnu_m4=yes ;;
	13	esac
	14	fi])])