make_text(...)
[character]
MakefileR_text
For anything else not covered by the other make_ functions, such as the export statement for exporting Makefile variables.
make_
export
Use the c function or the + operator to append comments to groups and Makefiles.
c
+
https://www.gnu.org/software/make/manual/
make_text("export SOME_VARIABLE") export SOME_VARIABLE
make_comment
make_def
make_group
make_rule