This file is indexed.

/usr/share/aclocal/yazpp.m4 is in libyazpp4-dev 1.2.7-0ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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AC_DEFUN([YAZPP_INIT],
[
        AC_SUBST(YAZPPLIB)
        AC_SUBST(YAZPPLALIB)
        AC_SUBST(YAZPPINC)
        AC_SUBST(YAZPPVERSION)
        yazppconfig=NONE
        yazpppath=NONE
        AC_ARG_WITH(yazpp, [  --with-yazpp=DIR        yazpp-config in DIR (example /home/yazpp-1.0.0)], [yazpppath=$withval])
        if test "x$yazpppath" != "xNONE"; then
                yazppconfig=$yazpppath/yazpp-config
        else
                if test "x$srcdir" = "x"; then
                        yazppsrcdir=.
                else
                        yazppsrcdir=$srcdir
                fi
                for i in ${yazppsrcdir}/../../yazpp ${yazppsrcdir}/../yazpp-* ${yazppsrcdir}/../yazpp; do
                        if test -d $i; then
                                if test -r $i/yazpp-config; then
                                        yazppconfig=$i/yazpp-config
                                fi
                        fi
                done
                if test "x$yazppconfig" = "xNONE"; then
                        AC_PATH_PROG(yazppconfig, yazpp-config, NONE)
                fi
        fi
        AC_MSG_CHECKING(for YAZ++)
        if $yazppconfig --version >/dev/null 2>&1; then
                YAZPPLIB=`$yazppconfig --libs $1`
                YAZPPLALIB=`$yazppconfig --lalibs $1`
                YAZPPINC=`$yazppconfig --cflags $1`
                YAZPPVERSION=`$yazppconfig --version`
                AC_MSG_RESULT($yazppconfig)
        else
                AC_MSG_RESULT(Not found)
                YAZVERSION=NONE
        fi
	if test "X$YAZPPVERSION" != "XNONE"; then
		AC_MSG_CHECKING([for YAZ++ version])
		AC_MSG_RESULT([$YAZPPVERSION])
		if test "$2"; then
			have_yaz_version=`echo "$YAZPPVERSION" | awk 'BEGIN { FS = "."; } { printf "%d", ([$]1 * 1000 + [$]2) * 1000 + [$]3;}'`
			req_yaz_version=`echo "$2" | awk 'BEGIN { FS = "."; } { printf "%d", ([$]1 * 1000 + [$]2) * 1000 + [$]3;}'`
			if test "$have_yaz_version" -lt "$req_yaz_version"; then
				AC_MSG_ERROR([$YAZPPVERSION. Requires YAZ++ $2 or later])
			fi
		fi
	fi
])