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from 41179a32768 Daily bump. new 821d56100e1 gcc, libcpp: Add warning switch for "#pragma once in main f [...]

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Summary of changes: gcc/c-family/c.opt | 4 ++++ gcc/c-family/c.opt.urls | 3 +++ gcc/doc/invoke.texi | 10 ++++++++-- gcc/testsuite/g++.dg/warn/Wno-pragma-once-outside-header.C | 5 +++++ gcc/testsuite/g++.dg/warn/Wpragma-once-outside-header.C | 6 ++++++ libcpp/directives.cc | 3 ++- libcpp/include/cpplib.h | 3 ++- 7 files changed, 30 insertions(+), 4 deletions(-) create mode 100644 gcc/testsuite/g++.dg/warn/Wno-pragma-once-outside-header.C create mode 100644 gcc/testsuite/g++.dg/warn/Wpragma-once-outside-header.C