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libool.m4: add ARFLAGS variable

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Libtool has used $AR_FLAGS since 2000-05-29 commit
8300de4c54, Automake ARFLAGS since 2003-04-06 commit
a71b3490639831ca.  Even though ARFLAGS is younger, it sounds like
better name according GNU Coding Standards.

Related to bug#20082.

* m4/libtool.m4 (_LT_PROG_AR): Copy ARFLAGS value into AR_FLAGS
variable if AR_FLAGS is not set.  Add new _LT_DECL'ed variable
'lt_ar_flags' to keep the configure-time value of AR_FLAGS.  The
new 'lt_ar_flags' is to be used as the default value for AR_FLAGS
at libtool-runtime.
* NEWS: Document.
This commit is contained in:
Pavel Raiskup 2015-04-17 15:05:42 +02:00
parent 0f84217752
commit 4335de1dfb
2 changed files with 21 additions and 2 deletions
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6
NEWS
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@ -2,6 +2,12 @@ NEWS - list of user-visible changes between releases of GNU Libtool
* Noteworthy changes in release ?.? (????-??-??) [?]
** New features:
- Libtool script now supports (configure-time and runtime) ARFLAGS
variable, which obsoletes AR_FLAGS. This is due to naming conventions
among other *FLAGS and to be consistent with Automake's ARFLAGS.
** Bug fixes:
- Fix significant slowdown of libtoolize for certain projects (regression

17
m4/libtool.m4 vendored
View File

@ -1493,9 +1493,22 @@ need_locks=$enable_libtool_lock
m4_defun([_LT_PROG_AR],
[AC_CHECK_TOOLS(AR, [ar], false)
: ${AR=ar}
: ${AR_FLAGS=cru}
_LT_DECL([], [AR], [1], [The archiver])
_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
# Use ARFLAGS variable as AR's operation code to sync the variable naming with
# Automake. If both AR_FLAGS and ARFLAGS are specified, AR_FLAGS should have
# higher priority because thats what people were doing historically (setting
# ARFLAGS for automake and AR_FLAGS for libtool). FIXME: Make the AR_FLAGS
# variable obsoleted/removed.
test ${AR_FLAGS+y} || AR_FLAGS=${ARFLAGS-cru}
lt_ar_flags=$AR_FLAGS
_LT_DECL([], [lt_ar_flags], [0], [Flags to create an archive (by configure)])
# Make AR_FLAGS overridable by 'make ARFLAGS='. Don't try to run-time override
# by AR_FLAGS because that was never working and AR_FLAGS is about to die.
_LT_DECL([], [AR_FLAGS], [\@S|@{ARFLAGS-"\@S|@lt_ar_flags"}],
[Flags to create an archive])
AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
[lt_cv_ar_at_file=no