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On systems where 'mode_t' is smaller than 'int', doing 'va_arg (ap, mode_t)' is
wrong because of C's "default argument promotions". GCC 4 creates crashing code
in this case.
The "va_arg" page of Gnulib's manual describes the problem and a simple solution:
https://www.gnu.org/software/gnulib/manual/html_node/va_005farg.html
However, since that solution reportedly (see thread at next link) still causes
GCC to print warnings (for no good reason; perhaps this was fixed in newer
GCCs), we pick a solution that defines a PROMOTED_MODE_T at the configuration
stage:
https://lists.gnu.org/archive/html/bug-gnulib/2009-05/msg00231.html
(We take our 'mode_t.m4' from the most recent Gnulib source.)
(If any of the URLs above no longer works, simply search the web for the
mentioned words.)
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|---|---|---|
| .. | ||
| vfs | ||
| ac_onceonly.m4 | ||
| ax_path_lib_pcre.m4 | ||
| dx_doxygen.m4 | ||
| fstypename.m4 | ||
| fsusage.m4 | ||
| ls-mntd-fs.m4 | ||
| mc-background.m4 | ||
| mc-cflags.m4 | ||
| mc-check-search-type.m4 | ||
| mc-get-fs-info.m4 | ||
| mc-glib.m4 | ||
| mc-i18n.m4 | ||
| mc-subshell.m4 | ||
| mc-tests.m4 | ||
| mc-use-termcap.m4 | ||
| mc-version.m4 | ||
| mc-vfs.m4 | ||
| mc-with-internal-edit.m4 | ||
| mc-with-screen-ncurses.m4 | ||
| mc-with-screen-slang.m4 | ||
| mc-with-screen.m4 | ||
| mc-with-x.m4 | ||
| mode_t.m4 | ||
| mountlist.m4 | ||