tools/clang/translation_unit/test_files/sysroot/README - Issue 1658553002: Check for system include paths by looking at clang's HeaderSearchOptions,

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Issue 1658553002: Check for system include paths by looking at clang's HeaderSearchOptions, (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Add helpful comments Created 4 years, 10 months ago

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« tools/clang/translation_unit/TranslationUnitGenerator.cpp ('K') | « tools/clang/translation_unit/test_files/compile_commands.json.template ('k') | tools/clang/translation_unit/test_files/sysroot/usr/include/c++/4.6/string » ('j') | no next file with comments »
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	1 Clang looks for the presence of crtbegin.o to decide whether to add GCC standard

	2 C++ library directories to the system header lookup path.

	3

	4 The presence of usr/lib/gcc/x86_64-linux-gnu/4.6/crtbegin.o and

	5 usr/include/c++/4.6 inside this sysroot will cause clang to add the following

	6 directories to the path:

	7 - $SYSROOT/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6

	8 - $SYSROOT/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/x86_64-linux-g nu/c++/4.6

	9 - $SYSROOT/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/x86_64-unknown -linux-gnu/c++/4.6

	10 - $SYSROOT/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../../include/c++/4.6/backwa rd

	11

	12 As well as the standard paths:

	13 - $SYSROOT/usr/local/include

	14 - $SYSROOT/include

	15 - $SYSROOT/usr/include

	16

	17 See clang's lib/Driver/ToolChains.cpp:

	18 - FilterNonExistent: checks for crtbegin.o

	19 - Linux::AddClangCXXStdlibIncludeArgs: looks for various c++ directories

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