CPUUsage (Windows): disable ENABLE_CPUUSAGE_PERFLIB by default

Because Windows 7 doesn't support it

Author: CarterLi

CMakeLists.txt

@@ -83,7 +83,7 @@ cmake_dependent_option(ENABLE_ELF "Enable libelf" ON "LINUX OR ANDROID OR Dragon
 cmake_dependent_option(ENABLE_THREADS "Enable multithreading" ON "Threads_FOUND" OFF)
 cmake_dependent_option(ENABLE_LIBZFS "Enable libzfs" ON "LINUX OR FreeBSD OR SunOS" OFF)
 cmake_dependent_option(ENABLE_PCIACCESS "Enable libpciaccess" ON "NetBSD OR OpenBSD" OFF)
-cmake_dependent_option(ENABLE_CPUUSAGE_PERFLIB "Use perflib (Processor Information) to calculate CPU usage (used by task manager) instead of CPU times (used by all other *nix platforms)" ON "WIN32" OFF)
+cmake_dependent_option(ENABLE_CPUUSAGE_PERFLIB "Use perflib (Processor Information) to calculate CPU usage (used by task manager) instead of CPU times (used by all other *nix platforms)" OFF "WIN32" OFF)
 
 option(ENABLE_SYSTEM_YYJSON "Use system provided (instead of fastfetch embedded) yyjson library" OFF)
 option(ENABLE_ASAN "Build fastfetch with ASAN (address sanitizer)" OFF)

src/common/init.c

@@ -265,6 +265,9 @@ void ffListFeatures(void)
         #if FF_HAVE_EMBEDDED_PCIIDS
             "Embedded pciids\n"
         #endif
+        #if FF_ENABLE_CPUUSAGE_PERFLIB
+            "CPUUsage perflib\n"
+        #endif
         ""
     , stdout);
 }

src/detection/cpuusage/cpuusage_windows.c

@@ -129,8 +129,11 @@ const char* ffGetCpuUsageInfo(FFlist* cpuTimes)
             pCounterData = (PERF_COUNTER_DATA*)((BYTE*)pCounterData + pCounterData->dwSize);
         }
 
-        if (wcschr(instanceName, L'_') == NULL /* ignore `_Total` */ && processorUtility != UINT64_MAX && utilityBase != UINT64_MAX)
+        if (wcschr(instanceName, L'_') == NULL /* ignore `_Total` */)
         {
+            if (processorUtility == UINT64_MAX)
+                return "Counter \"% Processor Utility\" are not supported";
+
             FFCpuUsageInfo* info = (FFCpuUsageInfo*) ffListAdd(cpuTimes);
             *info = (FFCpuUsageInfo) {
                 .inUseAll = processorUtility,