m4 1.4.20

• Homepage: https://www.gnu.org/software/m4/
• Manpage: https://www.gnu.org/software/m4/manual/index.html
• Changelog: http://ftp.gnu.org/gnu/m4/
• Repository: http://git.savannah.gnu.org/gitweb/?p=m4.git
• Host-Tool: master/make/host-tools/m4-host/
• Maintainer: @fda77

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