* build-aux/gendocs.sh (version):
* doc/gendocs_template:
* doc/gendocs_template_min:
* doc/gnulib.texi:
* lib/version-etc.c (COPYRIGHT_YEAR):
Update copyright dates by hand in templates and the like.
* all files: Run 'make update-copyright'.
With a char[] flexible array member in a struct with nontrivial
alignment, GCC-generated code can access past the end of the
array, because GCC assumes there are padding bytes to get the
struct aligned. So the common idiom of malloc (offsetof (struct
s, m), n) does not properly allocate an n-byte trailing member, as
malloc’s argument should be the next multiple of alignof (struct s).
See GCC Bug#66661: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66661
Although C11 apparently permits this GCC optimization (i.e., there
was a bug in Gnulib not in GCC), possibly this is a defect in C11.
See the thread containing:
https://gcc.gnu.org/ml/gcc-patches/2016-09/msg00317.html
* lib/flexmember.h: New file.
* lib/fnmatch.c, lib/fts.c, lib/glob.c, lib/idcache.c:
* lib/localename.c, lib/time_rz.c:
Include flexmember.h.
* lib/fnmatch_loop.c (struct patternlist):
* lib/localename.c (struct hash_node):
Use FLEXIBLE_ARRAY_MEMBER.
* lib/fnmatch_loop.c (EXT):
* lib/fts.c (fts_alloc):
* lib/glob.c (glob_in_dir):
* lib/idcache.c (getuser, getuidbyname, getgroup, getgidbyname):
* lib/localename.c (gl_lock_define_initialized):
* lib/time_rz.c (tzalloc):
Use FLEXSIZEOF instead of offsetof.
* m4/flexmember.m4 (AC_C_FLEXIBLE_ARRAY_MEMBER):
Check that the size of the struct can be taken.
* modules/flexmember (Files): Add lib/flexmember.h.
* modules/fnmatch, modules/glob, modules/localename (Depends-on):
Add flexmember.
* build-aux/gendocs.sh (version):
* doc/gendocs_template:
* doc/gendocs_template_min:
* doc/gnulib.texi:
* lib/version-etc.c (COPYRIGHT_YEAR):
Update copyright dates by hand in templates and the like.
* all files: Run 'make update-copyright'.
99% of this change was performed by running the following commands:
git ls-files | grep '\.m4$' | xargs perl -pi \
-e 's/(AC_\w+\()([^[()]+?)([,)])/$1\[$2]$3/g;' \
-e 's/(AC_\w+\((?:\[[^,]+?\], ){1})([^,[()]+?)([,)])/$1\[$2]$3/g;' \
-e 's/(AC_\w+\((?:\[[^,]+?\], ){2})([^,[()]+?)([,)])/$1\[$2]$3/g;' \
-e 's/(AC_\w+\((?:\[[^,]+?\], ){3})([^,[()]+?)([,)])/$1\[$2]$3/g'
perl -pi -e 's/\[\.\.\.\]/.../' m4/onceonly.m4
The remainder were to add Copyright dates, increment serial numbers,
undo some changes in comments, exclude m4/intl.m4, and add quotes
around the "1" in ",1" where the unusual spacing prohibited the
above regexps from doing the job. For more details, see
<http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/16175>.
Paul Eggert