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A comment on FreeBSD has removed GCC from its base system. Parent comment

Re:FreeBSD has removed GCC from its base system by kevans91 on Tuesday March 03, 2020 @09:21AM (#22474617)
> [...] so I assume even with GCC support removed, you can still build FreeBSD, if you insist, with an external copy of modern GCC.

Indeed- "external toolchain" includes gcc6[0] and gcc9[1] ports that can be used specifically for building the FreeBSD base system. These are mostly easy to use, install the flavor for whatever architecture you're building and specify CROSS_TOOLCHAIN=<arch>-gcc6 when you build. More/better/complete information (and examples!) at [2].

[0] https://www.freshports.org/devel/freebsd-gcc6

[1] https://www.freshports.org/devel/freebsd-gcc9

[2] https://wiki.freebsd.org/ExternalToolchain

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Re:FreeBSD has removed GCC from its base system by grapeli23 on Tuesday March 03, 2020 @12:36PM (#22476713)
What compiler is used to build blas and lapack, as well as a whole lot of programming based on them like numpy, scipy, julia, etc.?
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Re:FreeBSD has removed GCC from its base system by loeg on Tuesday March 03, 2020 @01:31PM (#22477332)
That's encoded in each individual port.

lapack, for example, has USES=fortran[1]. That invokes Uses/fortran.mk[2] and accepts the ports-default fortran compiler, FORTRAN_DEFAULT, which is definedin bsd.default-versions.mk[3] as gfortran (GCC).

[1]: https://svnweb.freebsd.org/ports/head/math/lapack/Makefile?r...

[2]: https://svnweb.freebsd.org/ports/head/Mk/Uses/fortran.mk?rev...

[3]: https://svnweb.freebsd.org/ports/head/Mk/bsd.default-version...

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Re:FreeBSD has removed GCC from its base system by kevans91 on Tuesday March 03, 2020 @01:53PM (#22477579)
Nothing changes here- this is solely about removing GCC 4.2 from the base/ repository; ports are almost entirely unaffected, and the GCC ecosystem in ports is fairly healthy.
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