[review #337] + fix on build.flags.ldspec#339

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fpistm merged 2 commits intostm32duino:masterfrom

fpistm:Fix_build.flags.ldspec

Oct 2, 2018

Commits on Oct 1, 2018

Fix build.flags.ldspec usage
fpistm
committed
Add menu options for C RunTime library

ppescher
authored and
fpistm
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