Fix for GCC15 / C23 build failure

[Pavel Cahyna]

Hello,

I have encountered a build failure with GCC 15, due to its adoption of
C23 as the default C language version. C23 has 'bool' (and 'true',
'false', and others) as keyword, thus it is not legal to declare 'bool'
in the code, see https://gcc.gnu.org/gcc-15/porting_to.html#c23-new-keywords

Fortunately in FreeIPMI, bool is not used as a name of a type, only as a
local variable name, so there are no ABI concerns and the fix is trivial
- patch attached. I can make a PR on GitHub / freeipmi-mirror if that's
preferred.

Best regards, Pavel

diff --git a/common/toolcommon/tool-config-file-common.c 
b/common/toolcommon/tool-config-file-common.c
index 609e7a3b3..20dfad512 100644
--- a/common/toolcommon/tool-config-file-common.c
+++ b/common/toolcommon/tool-config-file-common.c
@@ -78,14 +78,14 @@ _config_file_bool (conffile_t cf,
                    void *app_ptr,
                    int app_data)
 {
-  int *bool;
+  int *value;
 
   assert (data);
   assert (optionname);
   assert (option_ptr);
 
-  bool = (int *)option_ptr;
-  *bool = data->boolval;
+  value = (int *)option_ptr;
+  *value = data->boolval;
   return (0);
 }