Replaced "HAVE_HWMON" with "WITH_HWMON" as a more cmakish variable name for compile-time feature

src/Makefile

@@ -123,7 +123,7 @@ CFLAGS_NATIVE            += -s
 endif
 CFLAGS_NATIVE            += $(CFLAGS)
 LFLAGS_NATIVE            := -lpthread -ldl
-CFLAGS_NATIVE            += -DHAVE_HWMON
+CFLAGS_NATIVE            += -DWITH_HWMON
 LFLAGS_NATIVE            += $(LDFLAGS)
 endif # linux
 
@@ -143,7 +143,7 @@ ifndef DEBUG
 CFLAGS_CROSS_LINUX       += -s
 endif
 CFLAGS_CROSS_LINUX       += $(CFLAGS)
-CFLAGS_CROSS_LINUX       += -DHAVE_HWMON
+CFLAGS_CROSS_LINUX       += -DWITH_HWMON
 
 #CFLAGS_CROSS_WIN         := -D_WIN -DWIN -D__MSVCRT__ -D__USE_MINGW_ANSI_STDIO=1
 CFLAGS_CROSS_WIN         :=
@@ -151,7 +151,7 @@ ifndef DEBUG
 CFLAGS_CROSS_WIN         += -s
 endif
 CFLAGS_CROSS_WIN         += $(filter-out -fsanitize=address,$(CFLAGS))
-CFLAGS_CROSS_WIN         += -DHAVE_HWMON
+CFLAGS_CROSS_WIN         += -DWITH_HWMON
 
 CFLAGS_CROSS_32          := -m32
 CFLAGS_CROSS_64          := -m64

src/user_options.c

@@ -320,12 +320,12 @@ int user_options_parse (user_options_t *user_options, int argc, char **argv)
     return -1;
   }
 
-  #if !defined (HAVE_HWMON)
+  #if !defined (WITH_HWMON)
   user_options->powertune_enable = false;
   user_options->gpu_temp_disable = true;
   user_options->gpu_temp_abort   = 0;
   user_options->gpu_temp_retain  = 0;
-  #endif // HAVE_HWMON
+  #endif // WITH_HWMON
 
   // some options can influence or overwrite other options