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Prefer PATH_MAX to MAXPATHLEN

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PATH_MAX is standardized, MAXPATHLEN is not.
Also, the Gnulib pathmax module fixes some rare bugs with PATH_MAX.
So prefer PATH_MAX to MAXPATHLEN unless we know the latter is
also correct (for some platform-specific code).
* admin/merge-gnulib (GNULIB_MODULES): Add pathmax.
This module was already present, as a dependency of canonicalize-lgpl,
but now Emacs is using it directly.  Sort.
* lib-src/emacsclient.c: Include stdint.h, pathmax.h.
(get_current_dir_name): Sync to current src/sysdep.c.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* src/sysdep.c: Include pathmax.h.
(get_current_dir_name_or_unreachable):
Use PATH_MAX instead of MAXPATHLEN.
This commit is contained in:
Paul Eggert 2019-06-25 15:54:37 -07:00
parent 7dcefa7a2b
commit 824f784187
5 changed files with 26 additions and 25 deletions
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4
lib/gnulib.mk.in
View file

@ -120,6 +120,7 @@
# mkostemp \
# mktime \
# nstrftime \
# pathmax \
# pipe2 \
# pselect \
# pthread_sigmask \
@ -1076,6 +1077,7 @@ gl_GNULIB_ENABLED_getdtablesize = @gl_GNULIB_ENABLED_getdtablesize@
gl_GNULIB_ENABLED_getgroups = @gl_GNULIB_ENABLED_getgroups@
gl_GNULIB_ENABLED_malloca = @gl_GNULIB_ENABLED_malloca@
gl_GNULIB_ENABLED_open = @gl_GNULIB_ENABLED_open@
gl_GNULIB_ENABLED_pathmax = @gl_GNULIB_ENABLED_pathmax@
gl_GNULIB_ENABLED_strtoll = @gl_GNULIB_ENABLED_strtoll@
gl_LIBOBJS = @gl_LIBOBJS@
gl_LTLIBOBJS = @gl_LTLIBOBJS@
@ -2110,9 +2112,7 @@ endif
## begin gnulib module pathmax
ifeq (,$(OMIT_GNULIB_MODULE_pathmax))
ifneq (,$(gl_GNULIB_ENABLED_pathmax))
endif
EXTRA_DIST += pathmax.h
endif