Don't bother making the CMakeLists.txt usable by end-users.

This allows us to avoid having to offer two build targets - one for libscran
developers (without the 'scran/' nesting) and one for end-users.

CMakeLists.txt

@@ -7,15 +7,11 @@ project(scran_utils
 
 add_library(scran_core_utils INTERFACE)
 target_compile_features(scran_core_utils INTERFACE cxx_std_17)
-target_include_directories(scran_core_utils INTERFACE include)
+target_include_directories(scran_core_utils INTERFACE include/scran)
 
 if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
     include(CTest)
     if(BUILD_TESTING)
         add_subdirectory(tests)
     endif()
 endif()
-
-add_library(scran_core_utils_internal INTERFACE)
-target_compile_features(scran_core_utils_internal INTERFACE cxx_std_17)
-target_include_directories(scran_core_utils_internal INTERFACE include/scran)

README.md

@@ -93,7 +93,7 @@ or `EQUAL`, where all blocks are equally weighted regardless of size (assuming t
 
 This repository is part of the broader [**libscran**](https://github.com/libscran/libscran) library,
 so users are recommended to use the latter in their projects.
-Nonetheless, if this library is to be used directly, we can use CMake with `FetchContent`:
+**libscran** developers should just use CMake with `FetchContent`:
 
 ```cmake
 include(FetchContent)
@@ -105,16 +105,10 @@ FetchContent_Declare(
 )
 
 FetchContent_MakeAvailable(scran_core_utils)
-```
-
-Then we can link to `scran_core_utils` to make the headers available during compilation:
 
-```cmake
 # For executables:
 target_link_libraries(myexe scran_core_utils)
 
 # For libaries
 target_link_libraries(mylib INTERFACE scran_core_utils)
 ```
-
-If you're not using CMake, the simple approach is to just copy the files in `include/` - either directly or with Git submodules - and include their path during compilation with, e.g., GCC's `-I`.

tests/src/average_vectors.cpp

@@ -1,5 +1,5 @@
 #include <gtest/gtest.h>
-#include "scran/average_vectors.hpp"
+#include "average_vectors.hpp"
 #include "compare_almost_equal.h"
 #include <vector>
 

tests/src/block_weights.cpp

@@ -1,5 +1,5 @@
 #include <gtest/gtest.h>
-#include "scran/block_weights.hpp"
+#include "block_weights.hpp"
 #include <vector>
 
 TEST(BlockWeights, Variable) {