[MacPorts] #71798: base @2.10.99 : configure does not create a Makefile in vendor/install on macOS 10.11

[MacPorts]

#71798: base @2.10.99 : configure does not create a Makefile in vendor/install on
macOS 10.11
-----------------------+---------------------
 Reporter:  snowflake  |      Owner:  (none)
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  base       |    Version:  2.10.99
 Keywords:             |       Port:
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 Current checkout is on the master branch.

 [changeset:3954f0829f1ba09bd16c7977ff02cfe1c86ca779/macports-base commit
 macports-base 3954f0829f1]

 `standard_configure.sh` does not create a Makefile in vendor/install,
 which results in a failure of `make clean`
 {{{
 ==> making clean in vendor/install
 make[2]: *** No rule to make target `clean'.  Stop.
 make[1]: *** [clean-install] Error 2
 }}}

 This could result in builds breaking.

 It happened to me just now, when `libsqlite3.47.2.dylib` failed to
 install.

 A temporary fix is to delete all the `*.o` and `*.dylib` files manually.

 I do not have an explanation for the build on macOS 15.2 not breaking with
 the same source code.

-- 
Ticket URL: <https://trac.macports.org/ticket/71798>
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