kc3-lang/gnulib/modules/parse-datetime

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• Hash : 75f19d5e
  Author :
  Date : 2024-06-16T14:58:56
  

  parse-datetime: don’t depend on tzname
  
  * lib/parse-datetime.y (TIME_ZONE_BUFSIZE): Move earlier.
  (parser_control) [!HAVE_STRUCT_TM_TM_ZONE]:
  New member tz_abbr, to save abbrs calculated by strftime %Z.
  (populate_local_time_zone_table): New function, which
  optimizes the HAVE_STRUCT_TM_TM_ZONE case as before,
  and falls back on strftime with %Z otherwise.
  Although strftime %Z can be more accurate than the old tzname
  based method, the new heuristic is still wrong so often that it
  probably doesn’t help all that much.
  (parse_datetime_body): Use it.
  * modules/parse-datetime (Depends-on): Remove tzname.
  

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• modules/parse-datetime

• Description:
  Convert a date/time string to linear time.
  
  Files:
  doc/parse-datetime.texi
  lib/parse-datetime.h
  lib/parse-datetime.y
  m4/parse-datetime.m4
  m4/tm_gmtoff.m4
  
  Depends-on:
  assert-h
  bison
  c99
  c-ctype
  stdbool
  gettime
  gettext-h
  idx
  intprops
  inttypes
  mktime
  nstrftime
  setenv
  stdckdint
  unsetenv
  time-h
  time_r
  time_rz
  timegm
  
  configure.ac:
  gl_PARSE_DATETIME
  
  Makefile.am:
  # The Automake generated .y.c rule is broken: When executed in a VPATH build,
  #   - The .c file gets generated in the build directory. But since it requires
  #     special tools to rebuild it, we need to distribute it in the tarballs,
  #     and by the GNU Coding Standards
  #     <https://www.gnu.org/prep/standards/html_node/Makefile-Basics.html>
  #     the file should be generated in the source directory.
  #   - The #line directives in the .c file refer to a nonexistent file once it
  #     has been moved from the build directory to the source directory. This
  #     leads to error if 'lcov' is used later.
  # Additionally, here we assume GNU Bison and therefore don't need the ylwrap
  # script.
  # Therefore we override this rule.
  # Unfortunately, overriding the Automake generated .y.c rule does not work in
  # VPATH builds with OpenBSD make. Therefore, for VPATH builds on OpenBSD, the
  # user will need GNU make.
  parse-datetime.c: parse-datetime.y
  	$(AM_V_YACC)$(PARSE_DATETIME_BISON) $(YFLAGS) $(AM_YFLAGS) $(srcdir)/parse-datetime.y \
  	&& test ':' = '$(PARSE_DATETIME_BISON)' || { \
  	  sed -e 's|".*/parse-datetime\.y"|"parse-datetime.y"|' \
  	      -e 's|"parse-datetime\.tab\.c"|"parse-datetime.c"|' \
  	      < parse-datetime.tab.c > parse-datetime.c-tmp \
  	  && rm -f parse-datetime.tab.c \
  	  && mv parse-datetime.c-tmp $(srcdir)/parse-datetime.c; \
  	}
  lib_SOURCES += parse-datetime.y
  BUILT_SOURCES += parse-datetime.c
  MOSTLYCLEANFILES += parse-datetime.tab.c parse-datetime.c-tmp
  MAINTAINERCLEANFILES += parse-datetime.c
  EXTRA_DIST += parse-datetime.c
  
  Include:
  "parse-datetime.h"
  
  License:
  LGPLv2+
  
  Maintainer:
  Paul Eggert
  

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