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base repository: arduino/Arduino
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head repository: srejbi/Arduino
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compare: f5c6069
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  • 2 commits
  • 2 files changed
  • 1 contributor

Commits on Mar 26, 2012

  1. patch allows user to define 2 additional, optional parameters in the … 

    …preferences.txt file.

the parameters allow to tweak the default linker settings by injecting custom options to the avr-gcc command line.
the parameters:
* build.linker_options - specified options will *replace* the default '-Wl,--gc-sections' options
* build.linker_additional_options - options will *replace* the default '-lm' (at the end of the command line)

fine tuning these variables allows one to link against the float-enabled versions of printf and scanf.

has been tested on windows XP, with the following options set in the user's preferences.txt:
<pre>
build.linker_options=-Wl,-u,vfprintf,-u,vfscanf,--gc-sections
build.linker_additional_options=-lprintf_flt -lscanf_flt -lm
</pre>
    @srejbi
    srejbi committed Mar 26, 2012
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  2. test sketch that will tell if it has been linked against float-enable… 

    …d scanf/printf or not
    @srejbi
    srejbi committed Mar 26, 2012
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