[!cgo] skip

# Set CC explicitly to something that requires a PATH lookup.
# Normally, the default is gcc or clang, but if CC was set during make.bash,
# that becomes the default.
[exec:clang] env CC=clang
[exec:gcc] env CC=gcc
[!exec:clang] [!exec:gcc] skip 'Unknown C compiler'

env GOCACHE=$WORK/gocache  # Looking for compile flags, so need a clean cache.
[!windows] env PATH=.:$PATH
[!windows] chmod 0755 p/gcc p/clang
[!windows] exists -exec p/gcc p/clang
[windows] exists -exec p/gcc.bat p/clang.bat
! exists p/bug.txt
! go build -x
stderr '^cgo: exec (clang|gcc): (clang|gcc) resolves to executable relative to current directory \(.[/\\](clang|gcc)(.bat)?\)$'
! exists p/bug.txt

-- go.mod --
module m

-- m.go --
package m

import _ "m/p"

-- p/p.go --
package p

// #define X 1
import "C"

-- p/gcc --
#!/bin/sh
echo ran gcc >bug.txt
-- p/clang --
#!/bin/sh
echo ran clang >bug.txt
-- p/gcc.bat --
echo ran gcc >bug.txt
-- p/clang.bat --
echo ran clang >bug.txt