fixed warnings

CMakeLists.txt

@@ -15,11 +15,20 @@ if(POLICY CMP0167)
     cmake_policy(SET CMP0167 NEW)
 endif()
 
-
 ## -------------------------------------------------------------------------- ##
 
 project(uLib)
 
+# Remove GCC-only flag injected by conda's CFLAGS/CXXFLAGS that clang doesn't support.
+# Must run after project() since that's when CMake initialises CMAKE_<LANG>_FLAGS from env.
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    foreach(_lang C CXX)
+        foreach(_var CMAKE_${_lang}_FLAGS CMAKE_${_lang}_FLAGS_RELEASE CMAKE_${_lang}_FLAGS_RELWITHDEBINFO CMAKE_${_lang}_FLAGS_DEBUG)
+            string(REPLACE "-fno-merge-constants" "" ${_var} "${${_var}}")
+        endforeach()
+    endforeach()
+endif()
+
 # CUDA Toolkit seems to be missing locally. Toggle ON if nvcc is made available.
 option(USE_CUDA "Enable CUDA support" OFF)
 if(USE_CUDA)

README.md

@@ -65,6 +65,18 @@ cmake --preset conan-release
 cmake --build build -j$(nproc)
 ```
 
+5. **Clean build (wipe and rebuild everything):**
+```bash
+cmake --build build --clean-first -j$(nproc)
+```
+
+6. **Run tests:**
+```bash
+cmake --build build --target test -j$(nproc)
+# or equivalently:
+ctest --test-dir build --output-on-failure -j$(nproc)
+```
+
 #### LLVM/Clang build (clang + lld + ccache — fastest)
 
 A `fast` conan profile is provided that uses **clang**, **lld** (LLVM linker), and **ccache**. Install them into your environment first: