[avr-libc-dev] [bug #19009] Make <util/delay.h> issue a warning when optimizations are turned off

[Joerg Wunsch]

URL:
  <http://savannah.nongnu.org/bugs/?19009>

                 Summary: Make <util/delay.h> issue a warning when
optimizations are turned off
                 Project: AVR C Runtime Library
            Submitted by: joerg_wunsch
            Submitted on: Friday 02/09/2007 at 11:35
                Category: Header
                Severity: 2 - Minor
                Priority: 5 - Normal
              Item Group: Header files
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Many users attempt to use the inline functions from <util/delay.h>
but forget to enable optimizations in the compiler, leading to
bloated floating-point calculations being performed in the
target AVR rather than the compiler.

Have that header file issue a warning in that case, based on
GCC's __OPTIMIZE__ macro.




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