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Simplify _AC_CANONICAL_SPLIT

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This commit is contained in:
Stepan Kasal 2005-08-25 08:49:01 +00:00
parent 78b5c18a91
commit 7f5083c932
2 changed files with 14 additions and 12 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2005-08-24 Stepan Kasal <kasal@ucw.cz>
* lib/autoconf/general.m4 (_AC_CANONICAL_SPLIT): Simplify; rejecting
some evil values and relying on the fact that $* concatenates the
parameters by the first character from IFS.
2005-08-23 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>,
Stepan Kasal <kasal@ucw.cz>

20
lib/autoconf/general.m4
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@ -1650,23 +1650,19 @@ m4_define([AC_REQUIRE_AUX_FILE],
# --------------------------
# Generate the variables THING, THING_{alias cpu vendor os}.
m4_define([_AC_CANONICAL_SPLIT],
[AC_SUBST([$1], [$ac_cv_$1])dnl
[case $ac_cv_$1 in
*-*-*) ;;
*) AC_MSG_ERROR([invalid value of canonical $1]);;
esac
AC_SUBST([$1], [$ac_cv_$1])dnl
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_$1
shift
IFS=$ac_save_IFS
AC_SUBST([$1_cpu], [$[1]])dnl
AC_SUBST([$1_vendor], [$[2]])dnl
AC_SUBST([$1_os], [$[3]])dnl
case $[#] in
0|1|2) ;;
*)
shift; shift; shift
for ac_arg
do $1_os=[$]$1_os-$ac_arg
done;;
esac
shift; shift
AC_SUBST([$1_os], [$[*]])dnl
IFS=$ac_save_IFS
])# _AC_CANONICAL_SPLIT