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mirror of https://frontier.innolan.net/rainlance/c-ares.git synced 2025-11-22 17:46:34 +00:00

zz40-xc-ovr.m4: parentheses balancing of 'case' statements

m4 quadrigraph shell comment technique allows proper autoconf
parentheses balancing in shell 'case' statements. The presence
of unbalanced parentheses may otherwise trigger expansion bugs.
This commit is contained in:
Yang Tse
2013-01-25 00:46:58 +01:00
parent 15177a631e
commit b157f4a0be

View File

@ -60,7 +60,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_ECHO],
xc_tst_str='unknown' xc_tst_str='unknown'
(`echo "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success' (`echo "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success'
case "x$xc_tst_str" in case "x$xc_tst_str" in @%:@((
xsuccess) xsuccess)
: :
;; ;;
@ -88,7 +88,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_TEST],
xc_tst_str='unknown' xc_tst_str='unknown'
(`test -n "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success' (`test -n "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success'
case "x$xc_tst_str" in case "x$xc_tst_str" in @%:@((
xsuccess) xsuccess)
: :
;; ;;
@ -115,7 +115,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_VAR_PATH],
xc_tst_str='unknown' xc_tst_str='unknown'
(`test -n "$PATH" >/dev/null 2>&1`) && xc_tst_str='success' (`test -n "$PATH" >/dev/null 2>&1`) && xc_tst_str='success'
case "x$xc_tst_str" in case "x$xc_tst_str" in @%:@((
xsuccess) xsuccess)
: :
;; ;;
@ -142,7 +142,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_EXPR],
xc_tst_str='unknown' xc_tst_str='unknown'
xc_tst_str=(`expr "$xc_tst_str" : '.*' 2>/dev/null`) xc_tst_str=(`expr "$xc_tst_str" : '.*' 2>/dev/null`)
case "x$xc_tst_str" in case "x$xc_tst_str" in @%:@((
x7) x7)
: :
;; ;;
@ -174,7 +174,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_SED],
xc_tst_str='unknown' xc_tst_str='unknown'
xc_tst_str=(`echo "$xc_tst_str" 2>/dev/null \ xc_tst_str=(`echo "$xc_tst_str" 2>/dev/null \
| sed -e 's:unknown:success:' 2>/dev/null`) | sed -e 's:unknown:success:' 2>/dev/null`)
case "x$xc_tst_str" in case "x$xc_tst_str" in @%:@((
xsuccess) xsuccess)
: :
;; ;;
@ -206,7 +206,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_GREP],
xc_tst_str='unknown' xc_tst_str='unknown'
(`echo "$xc_tst_str" 2>/dev/null \ (`echo "$xc_tst_str" 2>/dev/null \
| grep 'unknown' >/dev/null 2>&1`) && xc_tst_str='success' | grep 'unknown' >/dev/null 2>&1`) && xc_tst_str='success'
case "x$xc_tst_str" in case "x$xc_tst_str" in @%:@((
xsuccess) xsuccess)
: :
;; ;;