file/magic/Magdir/m4

#------------------------------------------------------------------------------
# $File: m4,v 1.3 2019/02/27 16:46:23 christos Exp $
# make:  file(1) magic for M4 scripts
#
0	search/8192	dnl
>0	regex	\^dnl\ 		M4 macro processor script text
!:mime	text/x-m4
0	search/8192	AC_DEFUN
>0	regex	\^AC_DEFUN\\(\\[	M4 macro processor script text
!:strength + 15
!:mime	text/x-m4