diff --git a/src/sksl/SkSLCPPCodeGenerator.cpp b/src/sksl/SkSLCPPCodeGenerator.cpp
index 5f9b821..478f0f5 100644
--- a/src/sksl/SkSLCPPCodeGenerator.cpp
+++ b/src/sksl/SkSLCPPCodeGenerator.cpp
@@ -15,6 +15,8 @@
 
 #include <algorithm>
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
 namespace SkSL {
 
 static bool needs_uniform_var(const Variable& var) {
@@ -1393,3 +1395,5 @@
 }
 
 }  // namespace SkSL
+
+#endif // defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
diff --git a/src/sksl/SkSLCPPCodeGenerator.h b/src/sksl/SkSLCPPCodeGenerator.h
index 4edb106..8bd3977 100644
--- a/src/sksl/SkSLCPPCodeGenerator.h
+++ b/src/sksl/SkSLCPPCodeGenerator.h
@@ -13,6 +13,8 @@
 
 #include <set>
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
 namespace SkSL {
 
 class CPPCodeGenerator : public GLSLCodeGenerator {
@@ -143,4 +145,6 @@
 
 }  // namespace SkSL
 
-#endif
+#endif // defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
+#endif // SKSL_CPPCODEGENERATOR
diff --git a/src/sksl/SkSLCPPUniformCTypes.cpp b/src/sksl/SkSLCPPUniformCTypes.cpp
index 74146d7..b36ae1e 100644
--- a/src/sksl/SkSLCPPUniformCTypes.cpp
+++ b/src/sksl/SkSLCPPUniformCTypes.cpp
@@ -11,6 +11,8 @@
 
 #include <vector>
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
 namespace SkSL {
 
 /////////////////////////
@@ -232,3 +234,5 @@
 }
 
 }  // namespace SkSL
+
+#endif // defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
diff --git a/src/sksl/SkSLCPPUniformCTypes.h b/src/sksl/SkSLCPPUniformCTypes.h
index a838aa5..076dda3 100644
--- a/src/sksl/SkSLCPPUniformCTypes.h
+++ b/src/sksl/SkSLCPPUniformCTypes.h
@@ -13,6 +13,8 @@
 #include "src/sksl/ir/SkSLType.h"
 #include "src/sksl/ir/SkSLVariable.h"
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
 namespace SkSL {
 
 // This uses templates to define dirtyExpression(), saveState() and setUniform(). Each template can
@@ -130,4 +132,6 @@
 
 }  // namespace SkSL
 
+#endif // defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
 #endif // SkSLUniformCTypes_DEFINED
diff --git a/src/sksl/SkSLCompiler.cpp b/src/sksl/SkSLCompiler.cpp
index 543dfed..9795a1e 100644
--- a/src/sksl/SkSLCompiler.cpp
+++ b/src/sksl/SkSLCompiler.cpp
@@ -1771,6 +1771,7 @@
     return result;
 }
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
 bool Compiler::toCPP(Program& program, String name, OutputStream& out) {
     if (!this->optimize(program)) {
         return false;
@@ -1792,8 +1793,9 @@
     fSource = nullptr;
     return result;
 }
+#endif // defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
 
-#endif
+#endif // defined(SKSL_STANDALONE) || SK_SUPPORT_GPU
 
 #if !defined(SKSL_STANDALONE) && SK_SUPPORT_GPU
 bool Compiler::toPipelineStage(Program& program, PipelineStageArgs* outArgs) {
diff --git a/src/sksl/SkSLCompiler.h b/src/sksl/SkSLCompiler.h
index d41378d..c01e317 100644
--- a/src/sksl/SkSLCompiler.h
+++ b/src/sksl/SkSLCompiler.h
@@ -139,9 +139,11 @@
 
     bool toMetal(Program& program, String* out);
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
     bool toCPP(Program& program, String name, OutputStream& out);
 
     bool toH(Program& program, String name, OutputStream& out);
+#endif
 
     std::unique_ptr<ByteCode> toByteCode(Program& program);
 
diff --git a/src/sksl/SkSLHCodeGenerator.cpp b/src/sksl/SkSLHCodeGenerator.cpp
index 8af06c5..012b302 100644
--- a/src/sksl/SkSLHCodeGenerator.cpp
+++ b/src/sksl/SkSLHCodeGenerator.cpp
@@ -19,6 +19,8 @@
 
 #include <set>
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
 namespace SkSL {
 
 HCodeGenerator::HCodeGenerator(const Context* context, const Program* program,
@@ -383,3 +385,5 @@
 }
 
 }  // namespace SkSL
+
+#endif // defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
diff --git a/src/sksl/SkSLHCodeGenerator.h b/src/sksl/SkSLHCodeGenerator.h
index 03ab038..6e9bf42 100644
--- a/src/sksl/SkSLHCodeGenerator.h
+++ b/src/sksl/SkSLHCodeGenerator.h
@@ -15,6 +15,8 @@
 
 #include <cctype>
 
+#if defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
 constexpr const char* kFragmentProcessorHeader =
 R"(
 /**************************************************************************************************
@@ -83,4 +85,6 @@
 
 } // namespace SkSL
 
-#endif
+#endif // defined(SKSL_STANDALONE) || defined(GR_TEST_UTILS)
+
+#endif // SKSL_HCODEGENERATOR