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build: fix version comparison for go1.10 and beyond (#15781)

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Péter Szilágyi 2018-01-02 12:28:07 +02:00 committed by Felix Lange
parent 6882943e39
commit 2fe07c203e
1 changed files with 15 additions and 6 deletions
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13
build/ci.go
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@ -179,12 +179,18 @@ func doInstall(cmdline []string) {
// Check Go version. People regularly open issues about compilation // Check Go version. People regularly open issues about compilation
// failure with outdated Go. This should save them the trouble. // failure with outdated Go. This should save them the trouble.
if runtime.Version() < "go1.7" && !strings.Contains(runtime.Version(), "devel") { if !strings.Contains(runtime.Version(), "devel") {
// Figure out the minor version number since we can't textually compare (1.10 < 1.7)
var minor int
fmt.Sscanf(strings.TrimPrefix(runtime.Version(), "go1."), "%d", &minor)
if minor < 7 {
log.Println("You have Go version", runtime.Version()) log.Println("You have Go version", runtime.Version())
log.Println("go-ethereum requires at least Go version 1.7 and cannot") log.Println("go-ethereum requires at least Go version 1.7 and cannot")
log.Println("be compiled with an earlier version. Please upgrade your Go installation.") log.Println("be compiled with an earlier version. Please upgrade your Go installation.")
os.Exit(1) os.Exit(1)
} }
}
// Compile packages given as arguments, or everything if there are no arguments. // Compile packages given as arguments, or everything if there are no arguments.
packages := []string{"./..."} packages := []string{"./..."}
if flag.NArg() > 0 { if flag.NArg() > 0 {
@ -257,7 +263,10 @@ func goToolArch(arch string, subcmd string, args ...string) *exec.Cmd {
if subcmd == "build" || subcmd == "install" || subcmd == "test" { if subcmd == "build" || subcmd == "install" || subcmd == "test" {
// Go CGO has a Windows linker error prior to 1.8 (https://github.com/golang/go/issues/8756). // Go CGO has a Windows linker error prior to 1.8 (https://github.com/golang/go/issues/8756).
// Work around issue by allowing multiple definitions for <1.8 builds. // Work around issue by allowing multiple definitions for <1.8 builds.
if runtime.GOOS == "windows" && runtime.Version() < "go1.8" { var minor int
fmt.Sscanf(strings.TrimPrefix(runtime.Version(), "go1."), "%d", &minor)
if runtime.GOOS == "windows" && minor < 8 {
cmd.Args = append(cmd.Args, []string{"-ldflags", "-extldflags -Wl,--allow-multiple-definition"}...) cmd.Args = append(cmd.Args, []string{"-ldflags", "-extldflags -Wl,--allow-multiple-definition"}...)
} }
} }