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Tom Tromey 97f6bd406c re PR c/29172 (--combine can't handle #pragma once) 
gcc
	PR c/29172:
	* c-opts.c (c_common_parse_file): Call cpp_clear_file_cache.
libcpp
	PR c/29172:
	* internal.h (struct cpp_reader) <file_hash_entries>: Changed
	type.
	<file_hash_entries_allocated, file_hash_entries_used>: Removed.
	* files.c (FILE_HASH_POOL_SIZE): New macro.
	(struct file_hash_entry_pool): New.
	(destroy_all_cpp_files): New function.
	(allocate_file_hash_entries): Allocate a file_hash_entry_pool.
	(new_file_hash_entry): Update.
	(free_file_hash_entries): New function.
	(_cpp_cleanup_files): Call free_file_hash_entries and
	destroy_all_cpp_files.
	(cpp_clear_file_cache): New function.
	* include/cpplib.h (cpp_clear_file_cache): Declare.

From-SVN: r130656
 		2007-12-06 18:56:26 +00:00
..
cpp-id-data.h all files: Update FSF address in copyright headers. 2005-06-29 02:34:39 +00:00
cpplib.h re PR c/29172 (--combine can't handle #pragma once) 2007-12-06 18:56:26 +00:00
line-map.h tree-cfg.c (remove_bb): Only warn if line is non-zero. 2007-09-06 16:24:05 +00:00
mkdeps.h all files: Update FSF address in copyright headers. 2005-06-29 02:34:39 +00:00
symtab.h tree-cfg.c (remove_bb): Only warn if line is non-zero. 2007-09-06 16:24:05 +00:00