Add link_what_you_use support to the build setup

CMakeLists.txt

@@ -160,6 +160,7 @@ if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
       if (SERENE_CCACHE_DIR)
         set(CCACHE_PROGRAM "CCACHE_DIR=${SERENE_CCACHE_DIR} ${CCACHE_PROGRAM}")
       endif()
+      message(STATUS "Using CCACHE: ${CCACHE_PROGRAM}")
       set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE_PROGRAM})
     else()
       message(FATAL_ERROR "Unable to find the program ccache. Set SERENE_DISABLE_CCACHE to ON")

builder

@@ -19,7 +19,7 @@ BUILD_DIR=$ROOT_DIR/build
 ME=$(cd "$(dirname "$0")/." >/dev/null 2>&1 ; pwd -P)
 
 CMAKEARGS_DEBUG=" -DCMAKE_BUILD_TYPE=Debug -DSERENE_WITH_MLIR_CL_OPTION=ON"
-CMAKEARGS="-DSERENE_CCACHE_DIR=~/.ccache"
+CMAKEARGS="-DSERENE_CCACHE_DIR=${HOME}/.ccache"
 scanbuild=scan-build
 
 
@@ -51,7 +51,7 @@ function build() {
     echo "Running: "
     echo "cmake -G Ninja $CMAKE_CCACHE $CMAKEARGS -DCMAKE_BUILD_TYPE=Debug \"$@\" \"$ROOT_DIR\""
     cmake -G Ninja $CMAKEARGS $CMAKEARGS_DEBUG "$@" "$ROOT_DIR"
-    cmake --build . --verbose
+    cmake --build .
     popd_build
 }
 

src/libserene/CMakeLists.txt

@@ -74,7 +74,12 @@ add_library(Serene::lib ALIAS serene)
 
 set_target_properties(serene PROPERTIES
   VERSION ${PROJECT_VERSION}
-  SOVERSION ${PROJECT_VERSION_MAJOR})
+  SOVERSION ${PROJECT_VERSION_MAJOR}
+  # Warn on unused libs
+  LINK_WHAT_YOU_USE TRUE
+  # LTO support
+  INTERPROCEDURAL_OPTIMIZATION TRUE)
+
 
 # Do we need to build serene as a shared lib? default is "yes"
 if(SERENE_SHARED_LIB)

src/serenec/CMakeLists.txt

@@ -22,6 +22,16 @@
 
 add_executable(serenec serenec.cpp)
 
+set_target_properties(serenec PROPERTIES
+  VERSION ${PROJECT_VERSION}
+  SOVERSION ${PROJECT_VERSION_MAJOR}
+  # Warn on unused libs
+  LINK_WHAT_YOU_USE TRUE
+
+  # LTO support
+  INTERPROCEDURAL_OPTIMIZATION TRUE)
+
+
 if (CPP_20_SUPPORT)
   target_compile_features(serenec PRIVATE cxx_std_20)
 else()