diff --git a/RandLAPACK/CMakeLists.txt b/RandLAPACK/CMakeLists.txt
index 2554df5cc..69df8b870 100644
--- a/RandLAPACK/CMakeLists.txt
+++ b/RandLAPACK/CMakeLists.txt
@@ -1,32 +1,4 @@
 
-set(RandLAPACK_cxx_sources
-    rl_abrik.hh
-    rl_lapackpp.hh
-    rl_cqrrt.hh
-    rl_cqrrpt.hh
-    rl_bqrrp.hh
-    rl_rsvd.hh
-    rl_revd2.hh
-    rl_qb.hh
-    rl_orth.hh
-    rl_util.hh
-    rl_determiter.hh
-    rl_rs.hh
-    rl_rf.hh
-    rl_syps.hh
-    rl_syrf.hh
-    rl_rpchol.hh
-    rl_blaspp.hh
-    rl_pdkernels.hh
-    rl_exceptions.hh
-
-    rl_cusolver.hh
-    rl_cuda_kernels.cuh
-    rl_cuda_macros.hh
-    rl_cqrrpt_gpu.hh
-    rl_bqrrp_gpu.hh
-)
-
 add_library(RandLAPACK INTERFACE)
 target_compile_features(RandLAPACK INTERFACE cxx_std_20)
 
diff --git a/RandLAPACK/gpu_functions/rl_cusolver.hh b/RandLAPACK/gpu_functions/rl_cusolver.hh
deleted file mode 100644
index 8a80fef0a..000000000
--- a/RandLAPACK/gpu_functions/rl_cusolver.hh
+++ /dev/null
@@ -1,58 +0,0 @@
-#pragma once
-
-#if defined(ENABLE_CUDA)
-#include <cuda_runtime.h>
-#include <cublas_v2.h>
-#include <cusolverDn.h>
-#include "cublas_traits.h"
-#else
-//
-// We don't have access to cuBLAS / cuSOLVER.
-//
-// We need to create dummy aliases for CUDA types.
-//
-using cublasHandle_t = void *;
-using cusolverDnHandle_t = void *;
-using cublasFillMode_t = char;
-//
-// We have code that calls certain CUDA-defined functions
-// regardless of whether USE_CUBLAS was defined.
-//
-// We need to define dummy versions of these functions.
-// 
-// Naturally, these dummy versions should raise an error
-// if called. Here is some context that informs how we handle this
-//
-//     It so happens that the CUDA functions in question all return
-//     values from a CUDA-defined enum to indicate if the operation
-//     succeeded or failed.
-// 
-//     Our code that calls these CUDA functions is supposed to raise
-//     an error if the CUDA function returned anything other than zero.
-//
-// Therefore our dummy versions of these functions only need to
-// return a value other than zero in order to raise errors where 
-// they're invoked.
-// 
-// We have them return 1, since this corresponds to the value of
-// CUSOLVER_STATUS_NOT_INITIALIZED in the cusolverStatus_t enum.
-// 
-int cusolverDnCreate(cusolverDnHandle_t *x) {
-    return 1;
-}
-int cusolverDnDestroy(cusolverDnHandle_t x) {
-    return 1;
-}
-int cublasCreate(cublasHandle_t *x) {
-    return 1;
-}
-int cublasDestroy(cublasHandle_t x) {
-    return 1;
-}
-// 
-// For good measure, we define macros that map to the success condition
-// for the CUDA functions we might call.
-//
-#define CUSOLVER_STATUS_SUCCESS 0
-#define CUBLAS_STATUS_SUCCESS 0
-#endif
diff --git a/RandLAPACK/rl_config.hh.in b/RandLAPACK/rl_config.hh.in
index 5a15a252e..19a04d42f 100644
--- a/RandLAPACK/rl_config.hh.in
+++ b/RandLAPACK/rl_config.hh.in
@@ -1,9 +1,11 @@
 #pragma once
-#include "../RandBLAS/RandBLAS/config.h.in"
+
+// CMake's configure_file turns this template into rl_config.hh at configure time, and
+// the generated copy is installed with the headers so downstream projects can query the
+// version. RandBLAS's own config.h arrives through RandBLAS.hh, so it is not repeated
+// here. test/misc/test_config.cc exists to keep this header compiled.
 
 #define RandLAPACK_VERSION "@RandLAPACK_VERSION@"
 #define RandLAPACK_VERSION_MAJOR @RandLAPACK_VERSION_MAJOR@
 #define RandLAPACK_VERSION_MINOR @RandLAPACK_VERSION_MINOR@
 #define RandLAPACK_VERSION_PATCH @RandLAPACK_VERSION_PATCH@
-
-#endif
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 9f99fdc92..fff7e6fc5 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -22,6 +22,7 @@ if (GTest_FOUND)
         drivers/test_hqrrp.cc
         drivers/test_abrik.cc
         drivers/test_orth_linop.cc
+        misc/test_config.cc
         misc/test_util.cc
         misc/test_pdkernels.cc
         linops/test_linops.cc
diff --git a/test/misc/test_config.cc b/test/misc/test_config.cc
new file mode 100644
index 000000000..3980f2da1
--- /dev/null
+++ b/test/misc/test_config.cc
@@ -0,0 +1,35 @@
+// rl_config.hh is generated by CMake and installed, but nothing in the library
+// includes it, so for a long time nothing compiled it and it silently stopped being
+// valid C++. These tests are cheap; their real job is to keep that from recurring.
+
+#include "RandLAPACK/rl_config.hh"
+
+#include <gtest/gtest.h>
+#include <string>
+
+class TestConfig : public ::testing::Test {};
+
+TEST_F(TestConfig, version_macros_are_defined) {
+    // Compilation is the substantive check. These assertions document what the header
+    // is expected to provide.
+    std::string version = RandLAPACK_VERSION;
+    EXPECT_FALSE(version.empty());
+
+    EXPECT_GE(RandLAPACK_VERSION_MAJOR, 0);
+    EXPECT_GE(RandLAPACK_VERSION_MINOR, 0);
+    EXPECT_GE(RandLAPACK_VERSION_PATCH, 0);
+}
+
+TEST_F(TestConfig, version_string_starts_with_the_numeric_components) {
+    // rl_version.cmake derives the components from `git describe`, so the string always
+    // begins with MAJOR.MINOR.PATCH and may carry a commit suffix after that.
+    std::string expected_prefix =
+        std::to_string(RandLAPACK_VERSION_MAJOR) + "." +
+        std::to_string(RandLAPACK_VERSION_MINOR) + "." +
+        std::to_string(RandLAPACK_VERSION_PATCH);
+    std::string version = RandLAPACK_VERSION;
+
+    EXPECT_EQ(version.rfind(expected_prefix, 0), 0u)
+        << "version string \"" << version << "\" does not start with \""
+        << expected_prefix << "\"";
+}