sysutils/minipro: fix build with GCC-based architectures

[pkubaj]

Summary

This port needs new GCC to build on GCC architectures.

Actually respect CC by not replacing it with clang, instead remove it to use CC passed from ports.

Also respect CFLAGS.

PR: 238515

[mat]

sysutils/minipro/Makefile

27–29 ↗

(On Diff #59251)

Note that all this should be in a patch file, not be done with sed. https://www.freebsd.org/doc/en/books/porters-handbook/slow-patch.html#slow-patch-automatic-replacements

[pkubaj]

Put the changes to a separate patch and remove post-patch target.

Also, don't remove CC=gcc, but set CC?=gcc instead.

[mat]

sysutils/minipro/files/patch-Makefile

13 ↗

(On Diff #59282)

Should be ?= this appends the existing CFLAGS, thus not respecting what the user want. Say they want -O3, now the Makefile here adds -O0 disabling -O3.

[pkubaj]

Replace += with ?=.

[linimon]

I can confirm that with the new patch, the port does build on powerpc64.