What version of Go are you using (go version)?

go version devel +2f7fbf8851e Wed Jun 14 02:54:44 2017 +0000 windows/amd64

What operating system and processor architecture are you using (go env)?

set GOARCH=amd64
set GOBIN=
set GOEXE=.exe
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows
set GOPATH=d:\a
set GORACE=
set GOROOT=d:\a\go
set GOTOOLDIR=d:\a\go\pkg\tool\windows_amd64
set GCCGO=gccgo
set CC=gcc
set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=C:\Users\brainman\AppData\Local\Temp\1\go-build204410399=/tmp/go-build -gno-record-gcc-switches
set CXX=g++
set CGO_ENABLED=1
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config

What did you do?

I run go test -run=TestCgoDLLImports runtime command.

What did you expect to see?

PASS

What did you see instead?

--- FAIL: TestCgoDLLImports (5.50s)
        crash_test.go:70: building testprogcgo []: exit status 2
                # _/d_/a/go/src/runtime/testdata/testprogcgo
                .\numgoroutine.go:9:21: fatal error: pthread.h: No such file or directory
                 #include <pthread.h>
                                     ^
                compilation terminated.

FAIL
FAIL    runtime 5.792s

I, obviously, do not have pthread.h file. But others might be in the same situation.

We could replace pthread_create with _beginthreadex, but I do not know what replace pthread_join with. We could disable the test, but it is, obviously, working on some systems (our builders). Not sure what to do.

Alex