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Bryan C. Mills 6378c0e753 go/build: avoid setting Default.GOROOT when runtime.GOROOT() is empty
Previously, we called path.Clean on the value of runtime.GOROOT() even
if it was empty, which would set it explicitly to ".".
That would cause (*Context).importGo to assume that errors resolving
paths in GOROOT are fatal and return early:
https://cs.opensource.google/go/go/+/master:src/go/build/build.go;l=1121-1127;drc=38174b3a3514629b84dcd76878b2f536b189dd7b

If we instead leave it empty (and are in module mode), then importGo
will fall back to letting the 'go' command resolve the path, which may
succeed if the 'go' command can infer the correct GOROOT (from its own
stamped-in default GOROOT or executable path).

Fixes #51483

Change-Id: I44dce7cec6c3d1c86670e629ddfbca8be461130c
Reviewed-on: https://go-review.googlesource.com/c/go/+/391805
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-03-18 22:13:57 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api cmd/api: require proposal # for new API features 2022-03-14 21:43:16 +00:00
doc spec: various minor clarifications 2022-03-11 06:00:18 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc cmd/compile: set conversions to unsafe.Pointer as an escaping operation when -asan is enabled 2022-03-17 08:43:51 +00:00
src go/build: avoid setting Default.GOROOT when runtime.GOROOT() is empty 2022-03-18 22:13:57 +00:00
test cmd/compile: pointers to notinheap types need their own shape 2022-03-18 19:22:30 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: update Changkun Ou's email 2022-03-18 09:40:34 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: update Changkun Ou's email 2022-03-18 09:40:34 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README.md README.md: update contribute URL 2021-09-30 13:33:21 +00:00
SECURITY.md SECURITY.md: update go versions 2019-09-26 15:34:57 +00:00

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