diff options
Diffstat (limited to 'libcpp/files.c')
| -rw-r--r-- | libcpp/files.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libcpp/files.c b/libcpp/files.c index ba52d2b..301b237 100644 --- a/libcpp/files.c +++ b/libcpp/files.c @@ -1131,6 +1131,37 @@ cpp_find_header_unit (cpp_reader *pfile, const char *name, bool angle, return file->path; } +/* Retrofit the just-entered main file asif it was an include. This + will permit correct include_next use, and mark it as a system + header if that's where it resides. We use filesystem-appropriate + prefix matching of the include path to locate the main file. */ +void +cpp_retrofit_as_include (cpp_reader *pfile) +{ + /* We should be the outermost. */ + gcc_assert (!pfile->buffer->prev); + + if (const char *name = pfile->main_file->name) + { + /* Locate name on the include dir path, using a prefix match. */ + size_t name_len = strlen (name); + for (cpp_dir *dir = pfile->quote_include; dir; dir = dir->next) + if (dir->len < name_len + && IS_DIR_SEPARATOR (name[dir->len]) + && !filename_ncmp (name, dir->name, dir->len)) + { + pfile->main_file->dir = dir; + if (dir->sysp) + cpp_make_system_header (pfile, 1, 0); + break; + } + } + + /* Initialize controlling macro state. */ + pfile->mi_valid = true; + pfile->mi_cmacro = 0; +} + /* Could not open FILE. The complication is dependency output. */ static void open_file_failed (cpp_reader *pfile, _cpp_file *file, int angle_brackets, |