gcc: Translation implementation

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1 4.1 Translation
1 ===============
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1    * 'How a diagnostic is identified (C90 3.7, C99 and C11 3.10, C90,
1      C99 and C11 5.1.1.3).'
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1      Diagnostics consist of all the output sent to stderr by GCC.
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1    * 'Whether each nonempty sequence of white-space characters other
1      than new-line is retained or replaced by one space character in
1      translation phase 3 (C90, C99 and C11 5.1.1.2).'
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11      ⇒Implementation-defined behavior (cpp)Implementation-defined
      behavior.
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