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zz40-xc-ovr.m4: fix 'wc' detection

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- Take into account that 'wc' may return leading spaces.

- Set internationalization behavior variables.

Tor Arntsen analyzed and reported the issue.

URL: http://curl.haxx.se/mail/lib-2013-01/0351.html
This commit is contained in:
Yang Tse 2013-01-30 12:19:23 +01:00
parent c7b6e43ef8
commit 38131d415b
1 changed files with 14 additions and 3 deletions
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17
m4/zz40-xc-ovr.m4
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@ -53,6 +53,17 @@ xc_configure_preamble_ver_minor='XC_CONFIGURE_PREAMBLE_VER_MINOR'
xc_configure_preamble_prev_IFS=$IFS
#
# Set internationalization behavior variables
#
LANG='C'
LC_ALL='C'
LANGUAGE='C'
export LANG
export LC_ALL
export LANGUAGE
xc_msg_warn='configure: WARNING:'
xc_msg_abrt='Can not continue.'
xc_msg_err='configure: error:'
@ -276,14 +287,14 @@ dnl is found within 'PATH', otherwise aborts execution.
AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_WC],
[dnl
AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl
AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_TR])dnl
#
# Verify that 'wc' utility is found within 'PATH', otherwise abort.
#
xc_tst_str='unknown unknown unknown unknown'
xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \
| wc -w 2>/dev/null`
| wc -w 2>/dev/null | tr -d ' ' 2>/dev/null`
case "x$xc_tst_str" in @%:@ ((
x4)
:
@ -311,7 +322,7 @@ AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_WC])dnl
#
xc_tst_str='unknown'
xc_tst_str=`cat <<_EOT 2>/dev/null | wc -l 2>/dev/null
xc_tst_str=`cat <<_EOT 2>/dev/null | wc -l 2>/dev/null | tr -d ' ' 2>/dev/null
unknown
unknown
unknown