chore: Conservatively raise the minimum supported clang version in CM…

…akeList (#2023)

When using the default preset, if my clang version is 10 for example,
barretenberg will fail to build because the minimum supported version is
now 16.

This updates it in CmakeList. gcc has not been changed because
[according to this](https://gcc.gnu.org/projects/cxx-status.html) GCC
version 10 supports concepts which was the reason we had to raise the
minimum supported clang version.

circuits/cpp/barretenberg/cpp/CMakeLists.txt

@@ -53,7 +53,7 @@ if(FUZZING)
     endif()
 
     if(UNDEFINED_BEHAVIOUR_SANITIZER)
-        set(SANITIZER_OPTIONS ${SANITIZER_OPTIONS} -fsanitize=undefined  -fno-sanitize=alignment)
+        set(SANITIZER_OPTIONS ${SANITIZER_OPTIONS} -fsanitize=undefined -fno-sanitize=alignment)
     endif()
 
     add_compile_options(-fsanitize=fuzzer-no-link ${SANITIZER_OPTIONS})
@@ -81,15 +81,15 @@ set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
 set(CMAKE_CXX_EXTENSIONS ON)
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "10")
-        message(WARNING "Clang <10 is not supported")
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "14")
+        message(WARNING "Clang <14 is not supported")
     endif()
 elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
-    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "10")
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "10")
         message(WARNING "GCC <10 is not supported")
     endif()
 else()
-    message(WARNING "Unsuported compiler, use Clang >10 or GCC >10")
+    message(WARNING "Unsuported compiler, use Clang >14 or GCC >10")
 endif()
 
 if(COVERAGE)
@@ -105,13 +105,15 @@ if(COVERAGE)
     # Find llvm-profdata
     set(PROFDATA_EXECUTABLE_NAME "llvm-profdata-${CLANG_VERSION_MAJOR}")
     find_program(PROFDATA_EXECUTABLE ${PROFDATA_EXECUTABLE_NAME})
+
     if(PROFDATA_EXECUTABLE MATCHES "NOTFOUND")
         message(FATAL_ERROR "Couldn't find ${PROFDATA_EXECUTABLE_NAME}")
     endif()
 
     # Find llvm-cov
     set(COV_EXECUTABLE_NAME "llvm-cov-${CLANG_VERSION_MAJOR}")
     find_program(COV_EXECUTABLE ${COV_EXECUTABLE_NAME})
+
     if(COV_EXECUTABLE MATCHES "NOTFOUND")
         message(FATAL_ERROR "Couldn't find ${COV_EXECUTABLE_NAME}")
     endif()
@@ -121,12 +123,11 @@ if(COVERAGE)
 
     # Add a custom target for creating the report
     add_custom_target(create_full_coverage_report
-    COMMAND "${CMAKE_SOURCE_DIR}/scripts/collect_coverage_information.sh" ${PROFDATA_EXECUTABLE} ${COV_EXECUTABLE}
-    VERBATIM
+        COMMAND "${CMAKE_SOURCE_DIR}/scripts/collect_coverage_information.sh" ${PROFDATA_EXECUTABLE} ${COV_EXECUTABLE}
+        VERBATIM
     )
 endif()
 
-
 include(cmake/build.cmake)
 include(GNUInstallDirs)
 include(cmake/arch.cmake)