Remove '-nobuiltininc' and substitute '-nostdinc'. That's in addition to '-nostdinc++'
On Fri, Nov 11, 2016 at 11:00 AM, Emilio Pombo via cfe-users < cfe-users@lists.llvm.org> wrote: > Hi, > > I want to make clang parser to avoid all default and builtin include path > in my system (Ubuntu 14.04.5 LTS) for lib C and C++ stl (GNU, LLVM or > whatever). I'm using the two most canonical options for doing that (I > think): -*nobuiltininc* and -*nostdinc++*, also tried to change some > roots or prefixes with -isysroot , -iwithprefix or --gcc-toolchain, but > still with no luck. > > A simple example of my clang unwanted behavior could be: > > *$* echo '#include <aio.h>' > aio.cc > *$* clang++ -nobuiltininc -nostdinc++ -v aio.cc > clang version 3.9.1-svn281634-1~exp1 (branches/release_39) > ... > ignoring nonexistent directory "/include" > #include "..." search starts here: > #include <...> search starts here: > */usr/local/include* > * /usr/include/x86_64-linux-gnu* > * /usr/include* > End of search list. > ... > > So in this execution clang ends up finding the header aio.h (in > /usr/include/), while this is just the behavior I'm looking forward to > modify. Any ideas to change it? > > With the clang verbose option, you can see that those paths are included > before the parser starts, using flags like: -*internal*-isystem and - > *internal*-externc-isystem, there is a way to change or turn-off those > internal settings? > > Thanks in advance! > > Emilio. > > _______________________________________________ > cfe-users mailing list > cfe-users@lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users > >
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