/usr/src/gcc-6/debian/patches/pr77857.diff is in gcc-6-source 6.4.0-17ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | # DP: Fix PR go/77857, gccgo vendoring. Taken from the trunk.
Index: b/src/libgo/go/cmd/go/build.go
===================================================================
--- a/src/libgo/go/cmd/go/build.go
+++ b/src/libgo/go/cmd/go/build.go
@@ -2307,14 +2307,6 @@ func (gcToolchain) gc(b *builder, p *Pac
}
}
- for _, path := range p.Imports {
- if i := strings.LastIndex(path, "/vendor/"); i >= 0 {
- gcargs = append(gcargs, "-importmap", path[i+len("/vendor/"):]+"="+path)
- } else if strings.HasPrefix(path, "vendor/") {
- gcargs = append(gcargs, "-importmap", path[len("vendor/"):]+"="+path)
- }
- }
-
args := []interface{}{buildToolExec, tool("compile"), "-o", ofile, "-trimpath", b.work, buildGcflags, gcargs, "-D", p.localPrefix, importArgs}
if ofile == archive {
args = append(args, "-pack")
@@ -2594,6 +2586,55 @@ func (tools gccgoToolchain) gc(b *builde
if p.localPrefix != "" {
gcargs = append(gcargs, "-fgo-relative-import-path="+p.localPrefix)
}
+ savedirs := []string{}
+ for _, incdir := range importArgs {
+ if incdir != "-I" {
+ savedirs = append(savedirs, incdir)
+ }
+ }
+
+ for _, path := range p.Imports {
+ // If this is a new vendor path, add it to the list of importArgs
+ if i := strings.LastIndex(path, "/vendor"); i >= 0 {
+ for _, dir := range savedirs {
+ // Check if the vendor path is already included in dir
+ if strings.HasSuffix(dir, path[:i+len("/vendor")]) {
+ continue
+ }
+ // Make sure this vendor path is not already in the list for importArgs
+ vendorPath := dir + "/" + path[:i+len("/vendor")]
+ for _, imp := range importArgs {
+ if imp == "-I" {
+ continue
+ }
+ // This vendorPath is already in the list
+ if imp == vendorPath {
+ goto nextSuffixPath
+ }
+ }
+ // New vendorPath not yet in the importArgs list, so add it
+ importArgs = append(importArgs, "-I", vendorPath)
+ nextSuffixPath:
+ }
+ } else if strings.HasPrefix(path, "vendor/") {
+ for _, dir := range savedirs {
+ // Make sure this vendor path is not already in the list for importArgs
+ vendorPath := dir + "/" + path[len("/vendor"):]
+ for _, imp := range importArgs {
+ if imp == "-I" {
+ continue
+ }
+ if imp == vendorPath {
+ goto nextPrefixPath
+ }
+ }
+ // This vendor path is needed and not already in the list, so add it
+ importArgs = append(importArgs, "-I", vendorPath)
+ nextPrefixPath:
+ }
+ }
+ }
+
args := stringList(tools.compiler(), importArgs, "-c", gcargs, "-o", ofile, buildGccgoflags)
for _, f := range gofiles {
args = append(args, mkAbs(p.Dir, f))
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