/nxb-bin/ paths hard-baked into devel/libtool

[clausecker]

Prerequisites

• [X] Have you checked for an existing issue describing your problem?
• [X] Are you running the latest version?
• [X] Is your ports tree recent?
• [X] Is your FreeBSD Host on a supported release?

Describe the bug

The devel/libtool port hard codes the C compiler it sees during its own build and tries to use it for building packages later on. If the original C compiler is gone after its own build (e.g. if it is /nxb-bin/usr/bin/cc and libtool is installed on native HW), libtool will fail to produce a binary.

This is a duplicate of FreeBSD bug #230018.

How to reproduce

Build devel/libtool with native cross tools. Then install the resulting package on a native system. Finally, try to build a port that uses libtool (e.g. www/apache24) with it.

Expected behavior

Poudriere should set up the native-xtools such that devel/libtool does not bake in a wrong CC or devel/libtool should be patched to ignore native-xtools.

Environment

• Host OS: 13.0
• Jail OS: 13.0
• Poudriere Version [e.g. 3.3.1 or git hash or port version]: 3.3.7_1
• Ports branch and revision [e.g. 2020Q3 r550754]: 2021Q4