[MacPorts] #66513: podman @4.3.1: env: python3: No such file or directory

[MacPorts]

#66513: podman @4.3.1: env: python3: No such file or directory
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  judaew
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.8.0
 Keywords:              |       Port:  podman
------------------------+----------------------
 Build failure on Mojave and earlier:

 https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/174710/steps
 /install-port/logs/stdio
 {{{
 Makefile:134: invalid `override' directive
 mkdir -p bin/darwin
 CGO_ENABLED=0 \
                 GOOS=darwin \
                 GOARCH=amd64 \
                 go build \
                  \
                 -o bin/darwin/podman-mac-helper \
                 ./cmd/podman-mac-helper
 hack/markdown-preprocess docs/source/markdown/podman-attach.1.md.in
 env: python3: No such file or directory
 make: *** [docs/source/markdown/podman-attach.1.md] Error 127
 }}}

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Ticket URL: <https://trac.macports.org/ticket/66513>
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