Hi, this is the 3rd version of the patch, which fixed the issues Paolo raised in the previous email.
Okay for trunk? thanks. gcc/ChangeLog: 2019-06-03 qing zhao <qing.z...@oracle.com> * doc/cppopts.texi: Add document for -fmax-include-depth. * doc/invoke.texi (Preprocessor Options): List -fmax-include-depth. libcpp/ChangeLog: 2019-06-03 qing zhao <qing.z...@oracle.com> * directives.c (do_include_common): Replace CPP_STACK_MAX with CPP_OPTION (pfile, max_include_depth). * include/cpplib.h (struct cpp_options): Add new field max_include_depth. * init.c (cpp_create_reader): Initiate new field max_include_depth. * internal.h: Delete CPP_STACK_MAX. gcc/c-family/ChangeLog: 2019-06-03 qing zhao <qing.z...@oracle.com> * c-opts.c (c_common_handle_option): Handle -fmax-include-depth. * c.opt: Add new option -fmax-include-depth. gcc/testsuite/ChangeLog: 2019-06-03 qing zhao <qing.z...@oracle.com> * c-c++-common/cpp/fmax-include-depth-1a.h: New test. * c-c++-common/cpp/fmax-include-depth-1b.h: New test. * c-c++-common/cpp/fmax-include-depth.c: New test.
0001-PR-preprocessor-90581.patch
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