gccint: Host Misc

1 
1 19.3 Host Misc
1 ==============
1 
1 'FATAL_EXIT_CODE'
1      A C expression for the status code to be returned when the compiler
1      exits after serious errors.  The default is the system-provided
1      macro 'EXIT_FAILURE', or '1' if the system doesn't define that
1      macro.  Define this macro only if these defaults are incorrect.
1 
1 'SUCCESS_EXIT_CODE'
1      A C expression for the status code to be returned when the compiler
1      exits without serious errors.  (Warnings are not serious errors.)
1      The default is the system-provided macro 'EXIT_SUCCESS', or '0' if
1      the system doesn't define that macro.  Define this macro only if
1      these defaults are incorrect.
1 
1 'USE_C_ALLOCA'
1      Define this macro if GCC should use the C implementation of
1      'alloca' provided by 'libiberty.a'.  This only affects how some
1      parts of the compiler itself allocate memory.  It does not change
1      code generation.
1 
1      When GCC is built with a compiler other than itself, the C 'alloca'
1      is always used.  This is because most other implementations have
1      serious bugs.  You should define this macro only on a system where
1      no stack-based 'alloca' can possibly work.  For instance, if a
1      system has a small limit on the size of the stack, GCC's builtin
1      'alloca' will not work reliably.
1 
1 'COLLECT2_HOST_INITIALIZATION'
1      If defined, a C statement (sans semicolon) that performs
1      host-dependent initialization when 'collect2' is being initialized.
1 
1 'GCC_DRIVER_HOST_INITIALIZATION'
1      If defined, a C statement (sans semicolon) that performs
1      host-dependent initialization when a compilation driver is being
1      initialized.
1 
1 'HOST_LONG_LONG_FORMAT'
1      If defined, the string used to indicate an argument of type 'long
1      long' to functions like 'printf'.  The default value is '"ll"'.
1 
1 'HOST_LONG_FORMAT'
1      If defined, the string used to indicate an argument of type 'long'
1      to functions like 'printf'.  The default value is '"l"'.
1 
1 'HOST_PTR_PRINTF'
1      If defined, the string used to indicate an argument of type 'void
1      *' to functions like 'printf'.  The default value is '"%p"'.
1 
1  In addition, if 'configure' generates an incorrect definition of any of
1 the macros in 'auto-host.h', you can override that definition in a host
1 configuration header.  If you need to do this, first see if it is
1 possible to fix 'configure'.
1