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cceb922d06
* m4/module.c (m4__module_open): Instead of calling lt_dlopenext right away, use the preload hint first incase path searching has been disabled by POSIXLY_CORRECT. Otherwise fallback to a manual path search to override libltdl's algorithm. * m4/m4module.h: Adjust. * m4/path.c (FILE_SUFFIXES): Order to try suffixes in our path search algorithm. (NO_SUFFIXES): Alternatively, how to to search a path without adding file suffixes. (m4_path_search): Add a new suffixes parameter defaulting to NO_SUFFIXES. Adjust all callers. (m4_load_filename): New generic load function that tries to open a matched file first as a module, and if that fails fall back to as (possibly frozen) m4 input. (m4_fopen): New function with close on exec functionality. * modules/m4.c (include, sinclude): Use m4_load_filename to overload these builtins to work with modules too. * modules/load.c (load): Removed this builtin. * src/main.c: Remove Dynamic loading features section, and M4MODPATH support. (long_options): Remove "load-module", "unload-module" and "module-directory" options. (OPTSTRING): Remove 'M' and 'm' options. (process_file): Use m4_load_filename to support module names on the command line. * Makefile.am (TESTS_ENVIRONMENT): No need for abs_top_builddir any more. * doc/m4.texinfo: Update examples. (Dynamic loading features, Load): Removed. (Command line files): Describe how non-option arguments are treated to try to find a matching macro file or dso. (Include): Describe additional dso loading features if a suitable text file cannot be found. (Modules): Updated. * tests/builtins.at, tests/m4.in, tests/modules.at, tests/options.at: Adjust test cases and calling conventions to new semantics. * NEWS: Updated.