diff --git a/cc/config/bionic.go b/cc/config/bionic.go
index e87f571..a1e3851 100644
--- a/cc/config/bionic.go
+++ b/cc/config/bionic.go
@@ -15,6 +15,7 @@
 package config
 
 type toolchainBionic struct {
+	toolchainBase
 }
 
 var (
@@ -29,6 +30,12 @@
 
 func (toolchainBionic) DefaultSharedLibraries() []string { return bionicDefaultSharedLibraries }
 
+func (toolchainBionic) ShlibSuffix() string { return ".so" }
+
+func (toolchainBionic) ExecutableSuffix() string { return "" }
+
+func (toolchainBionic) AvailableLibraries() []string { return nil }
+
 func (toolchainBionic) CrtBeginStaticBinary() []string  { return bionicCrtBeginStaticBinary }
 func (toolchainBionic) CrtBeginSharedBinary() []string  { return bionicCrtBeginSharedBinary }
 func (toolchainBionic) CrtBeginSharedLibrary() []string { return bionicCrtBeginSharedLibrary }
diff --git a/cc/config/darwin_host.go b/cc/config/darwin_host.go
index 5e3f7c7..01b1e63 100644
--- a/cc/config/darwin_host.go
+++ b/cc/config/darwin_host.go
@@ -176,6 +176,8 @@
 type toolchainDarwin struct {
 	cFlags, ldFlags string
 	toolchain64Bit
+	toolchainNoCrt
+	toolchainBase
 }
 
 type toolchainDarwinX86 struct {
@@ -254,6 +256,10 @@
 	return ".dylib"
 }
 
+func (t *toolchainDarwin) ExecutableSuffix() string {
+	return ""
+}
+
 func (t *toolchainDarwin) AvailableLibraries() []string {
 	return darwinAvailableLibraries
 }
diff --git a/cc/config/toolchain.go b/cc/config/toolchain.go
index 253bb06..d9eaf53 100644
--- a/cc/config/toolchain.go
+++ b/cc/config/toolchain.go
@@ -140,14 +140,6 @@
 	return ""
 }
 
-func (toolchainBase) ShlibSuffix() string {
-	return ".so"
-}
-
-func (toolchainBase) ExecutableSuffix() string {
-	return ""
-}
-
 func (toolchainBase) Asflags() string {
 	return ""
 }
@@ -160,16 +152,14 @@
 	return ""
 }
 
-func (toolchainBase) AvailableLibraries() []string {
-	return nil
-}
+type toolchainNoCrt struct{}
 
-func (toolchainBase) CrtBeginStaticBinary() []string  { return nil }
-func (toolchainBase) CrtBeginSharedBinary() []string  { return nil }
-func (toolchainBase) CrtBeginSharedLibrary() []string { return nil }
-func (toolchainBase) CrtEndStaticBinary() []string    { return nil }
-func (toolchainBase) CrtEndSharedBinary() []string    { return nil }
-func (toolchainBase) CrtEndSharedLibrary() []string   { return nil }
+func (toolchainNoCrt) CrtBeginStaticBinary() []string  { return nil }
+func (toolchainNoCrt) CrtBeginSharedBinary() []string  { return nil }
+func (toolchainNoCrt) CrtBeginSharedLibrary() []string { return nil }
+func (toolchainNoCrt) CrtEndStaticBinary() []string    { return nil }
+func (toolchainNoCrt) CrtEndSharedBinary() []string    { return nil }
+func (toolchainNoCrt) CrtEndSharedLibrary() []string   { return nil }
 
 func (toolchainBase) DefaultSharedLibraries() []string {
 	return nil
@@ -188,7 +178,6 @@
 }
 
 type toolchain64Bit struct {
-	toolchainBase
 }
 
 func (toolchain64Bit) Is64Bit() bool {
@@ -196,7 +185,6 @@
 }
 
 type toolchain32Bit struct {
-	toolchainBase
 }
 
 func (toolchain32Bit) Is64Bit() bool {
diff --git a/cc/config/x86_linux_host.go b/cc/config/x86_linux_host.go
index 4e8fd77..1b126de 100644
--- a/cc/config/x86_linux_host.go
+++ b/cc/config/x86_linux_host.go
@@ -158,6 +158,7 @@
 }
 
 type toolchainLinux struct {
+	toolchainBase
 	cFlags, ldFlags string
 }
 
@@ -247,9 +248,18 @@
 	return linuxAvailableLibraries
 }
 
+func (toolchainLinux) ShlibSuffix() string {
+	return ".so"
+}
+
+func (toolchainLinux) ExecutableSuffix() string {
+	return ""
+}
+
 // glibc specialization of the linux toolchain
 
 type toolchainGlibc struct {
+	toolchainNoCrt
 }
 
 func (toolchainGlibc) Glibc() bool { return true }
diff --git a/cc/config/x86_windows_host.go b/cc/config/x86_windows_host.go
index 2c83211..a33606f 100644
--- a/cc/config/x86_windows_host.go
+++ b/cc/config/x86_windows_host.go
@@ -153,6 +153,8 @@
 
 type toolchainWindows struct {
 	cFlags, ldFlags string
+	toolchainBase
+	toolchainNoCrt
 }
 
 type toolchainWindowsX86 struct {