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Russ Cox 96d8d3eb32 cmd/go: handle -C properly during toolchain switches
The -C dir flag was added in Go 1.20.
This CL adds a new restriction: the -C must appear as the first flag on the command line.
This restriction makes finding the -C flag robust and matches the general way
people tend to think about and use the -C flag anyway.
It may break a few scripts that have been written since Go 1.20
but hopefully they will not be hard to find and fix.
(There is no strict compatibility guarantee for the command line.)

For #57001.

Change-Id: Ice2e5982c58d41eabdaef42a80d3624cde2c9873
Reviewed-on: https://go-review.googlesource.com/c/go/+/500915
TryBot-Bypass: Russ Cox <rsc@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
2023-06-06 19:23:42 +00:00
.github doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
api math/big: rename Int.ToFloat64 to Float64 2023-06-02 14:22:24 +00:00
doc doc/go1.21: document GOEXPERIMENT=loopvar and invite feedback 2023-06-05 19:18:13 +00:00
lib/time lib/time: update to 2023c/2023c 2023-05-03 20:14:11 +00:00
misc misc/wasm: set PATH variable in exec 2023-05-26 17:21:14 +00:00
src cmd/go: handle -C properly during toolchain switches 2023-06-06 19:23:42 +00:00
test cmd/compile: allow ir.OMIN/ir.OMAX in mayCall 2023-06-05 03:11:36 +00:00
.gitattributes
.gitignore cmd/dist: refactor generated cgo-support logic 2023-04-20 17:26:46 +00:00
codereview.cfg
CONTRIBUTING.md doc: normalize proposal-process links 2023-03-29 22:00:27 +00:00
go.env cmd/go: additional doc-inspired tests and bug fixes 2023-06-06 19:18:46 +00:00
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00

The Go Programming Language

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