diff options
Diffstat (limited to 'libgo/go/cmd/cgo/main.go')
| -rw-r--r-- | libgo/go/cmd/cgo/main.go | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/libgo/go/cmd/cgo/main.go b/libgo/go/cmd/cgo/main.go index c47e991..40dc6d2 100644 --- a/libgo/go/cmd/cgo/main.go +++ b/libgo/go/cmd/cgo/main.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// Cgo; see gmp.go for an overview. +// Cgo; see doc.go for an overview. // TODO(rsc): // Emit correct line number annotations. @@ -17,9 +17,11 @@ import ( "go/ast" "go/printer" "go/token" + "internal/buildcfg" "io" "io/ioutil" "os" + "os/exec" "path/filepath" "reflect" "runtime" @@ -249,7 +251,7 @@ var importRuntimeCgo = flag.Bool("import_runtime_cgo", true, "import runtime/cgo var importSyscall = flag.Bool("import_syscall", true, "import syscall in generated code") var trimpath = flag.String("trimpath", "", "applies supplied rewrites or trims prefixes to recorded source file paths") -var goarch, goos string +var goarch, goos, gomips, gomips64 string func main() { objabi.AddVersionFlag() // -V @@ -306,6 +308,14 @@ func main() { p := newPackage(args[:i]) + // We need a C compiler to be available. Check this. + gccName := p.gccBaseCmd()[0] + _, err := exec.LookPath(gccName) + if err != nil { + fatalf("C compiler %q not found: %v", gccName, err) + os.Exit(2) + } + // Record CGO_LDFLAGS from the environment for external linking. if ldflags := os.Getenv("CGO_LDFLAGS"); ldflags != "" { args, err := splitQuoted(ldflags) @@ -409,6 +419,9 @@ func newPackage(args []string) *Package { if s := os.Getenv("GOOS"); s != "" { goos = s } + buildcfg.Check() + gomips = buildcfg.GOMIPS + gomips64 = buildcfg.GOMIPS64 ptrSize := ptrSizeMap[goarch] if ptrSize == 0 { fatalf("unknown ptrSize for $GOARCH %q", goarch) |