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authorYang Tse <yangsita@gmail.com>2013-01-25 00:46:58 +0100
committerYang Tse <yangsita@gmail.com>2013-01-25 00:46:58 +0100
commitb157f4a0beba7ecc8821048f9ab2a1139af7577d (patch)
treef69fa2821aa92a459fecd126068acd29f9a08a2d /m4/zz40-xc-ovr.m4
parent15177a631ebf5b56ae02525514ec4f2ddda533b6 (diff)
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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.
Diffstat (limited to 'm4/zz40-xc-ovr.m4')
-rw-r--r--m4/zz40-xc-ovr.m412
1 files changed, 6 insertions, 6 deletions
diff --git a/m4/zz40-xc-ovr.m4 b/m4/zz40-xc-ovr.m4
index a682786..9070dce 100644
--- a/m4/zz40-xc-ovr.m4
+++ b/m4/zz40-xc-ovr.m4
@@ -60,7 +60,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_ECHO],
xc_tst_str='unknown'
(`echo "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success'
-case "x$xc_tst_str" in
+case "x$xc_tst_str" in @%:@((
xsuccess)
:
;;
@@ -88,7 +88,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_TEST],
xc_tst_str='unknown'
(`test -n "$xc_tst_str" >/dev/null 2>&1`) && xc_tst_str='success'
-case "x$xc_tst_str" in
+case "x$xc_tst_str" in @%:@((
xsuccess)
:
;;
@@ -115,7 +115,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_VAR_PATH],
xc_tst_str='unknown'
(`test -n "$PATH" >/dev/null 2>&1`) && xc_tst_str='success'
-case "x$xc_tst_str" in
+case "x$xc_tst_str" in @%:@((
xsuccess)
:
;;
@@ -142,7 +142,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_CMD_EXPR],
xc_tst_str='unknown'
xc_tst_str=(`expr "$xc_tst_str" : '.*' 2>/dev/null`)
-case "x$xc_tst_str" in
+case "x$xc_tst_str" in @%:@((
x7)
:
;;
@@ -174,7 +174,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_SED],
xc_tst_str='unknown'
xc_tst_str=(`echo "$xc_tst_str" 2>/dev/null \
| sed -e 's:unknown:success:' 2>/dev/null`)
-case "x$xc_tst_str" in
+case "x$xc_tst_str" in @%:@((
xsuccess)
:
;;
@@ -206,7 +206,7 @@ AC_DEFUN([_XC_CFG_PRE_BASIC_CHK_UTIL_GREP],
xc_tst_str='unknown'
(`echo "$xc_tst_str" 2>/dev/null \
| grep 'unknown' >/dev/null 2>&1`) && xc_tst_str='success'
-case "x$xc_tst_str" in
+case "x$xc_tst_str" in @%:@((
xsuccess)
:
;;