src/cmd/cgo/gcc.go | 12 ++++++++----

diff --git a/src/cmd/cgo/gcc.go b/src/cmd/cgo/gcc.go
index 60d420b21f30507f48b7fce107f90d4a2d179df8..f2a109d3432165b819a68500b12f456dd262a9e4 100644
--- a/src/cmd/cgo/gcc.go
+++ b/src/cmd/cgo/gcc.go
@@ -780,6 +780,11 @@ // returns the corresponding DWARF data and, if present, debug data block.
 func (p *Package) gccDebug(stdin []byte) (*dwarf.Data, binary.ByteOrder, []byte) {
 	runGcc(stdin, p.gccCmd())
 
+	isDebugData := func(s string) bool {
+		// Some systems use leading _ to denote non-assembly symbols.
+		return s == "__cgodebug_data" || s == "___cgodebug_data"
+	}
+
 	if f, err := macho.Open(gccTmp()); err == nil {
 		defer f.Close()
 		d, err := f.DWARF()
@@ -790,8 +795,7 @@ 		var data []byte
 		if f.Symtab != nil {
 			for i := range f.Symtab.Syms {
 				s := &f.Symtab.Syms[i]
-				// Mach-O still uses a leading _ to denote non-assembly symbols.
-				if s.Name == "_"+"__cgodebug_data" {
+				if isDebugData(s.Name) {
 					// Found it.  Now find data section.
 					if i := int(s.Sect) - 1; 0 <= i && i < len(f.Sections) {
 						sect := f.Sections[i]
@@ -818,7 +822,7 @@ 		symtab, err := f.Symbols()
 		if err == nil {
 			for i := range symtab {
 				s := &symtab[i]
-				if s.Name == "__cgodebug_data" {
+				if isDebugData(s.Name) {
 					// Found it.  Now find data section.
 					if i := int(s.Section); 0 <= i && i < len(f.Sections) {
 						sect := f.Sections[i]
@@ -842,7 +846,7 @@ 			fatalf("cannot load DWARF output from %s: %v", gccTmp(), err)
 		}
 		var data []byte
 		for _, s := range f.Symbols {
-			if s.Name == "_"+"__cgodebug_data" {
+			if isDebugData(s.Name) {
 				if i := int(s.SectionNumber) - 1; 0 <= i && i < len(f.Sections) {
 					sect := f.Sections[i]
 					if s.Value < sect.Size {