Import v1.5.24
Import v1.5.26
Merge tag 'v1.5.24'

Import v1.5.24
Merge tag 'v1.5.26'

Import v1.5.26

Conflicts:
	acinclude.m4
	cdemo/acinclude.m4
	demo/acinclude.m4
	depdemo/acinclude.m4
	f77demo/acinclude.m4
	libltdl/acinclude.m4
	libtool.m4
	mdemo/acinclude.m4
	mdemo2/acinclude.m4
	missing
	pdemo/acinclude.m4
	tagdemo/acinclude.m4

All the resolution of bb23e94f5a250.