diff options
| author | Yang Tse <yangsita@gmail.com> | 2013-01-30 15:46:46 +0100 |
|---|---|---|
| committer | Yang Tse <yangsita@gmail.com> | 2013-01-30 15:46:46 +0100 |
| commit | ddd40a43aa9f021e817c411d0ca63268cf931df6 (patch) | |
| tree | 7bdf411fb580ac1cc90f4dfad0a7a76c838ce14a | |
| parent | 38131d415bd4f8b26db4fdebbfd5b34f41d2a17b (diff) | |
zz40-xc-ovr.m4: fix 'wc' detection - follow-up
- Take into account that 'wc' may return leading spaces and/or tabs.
- Set initial IFS to space, tab and newline.
| -rw-r--r-- | m4/zz40-xc-ovr.m4 | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/m4/zz40-xc-ovr.m4 b/m4/zz40-xc-ovr.m4 index b5e9dfeb9..83b1d84f4 100644 --- a/m4/zz40-xc-ovr.m4 +++ b/m4/zz40-xc-ovr.m4 @@ -51,10 +51,18 @@ XC_CONFIGURE_PREAMBLE_VER_MINOR ## xc_configure_preamble_ver_major='XC_CONFIGURE_PREAMBLE_VER_MAJOR' xc_configure_preamble_ver_minor='XC_CONFIGURE_PREAMBLE_VER_MINOR' -xc_configure_preamble_prev_IFS=$IFS +# +# Set IFS to space, tab and newline. +# + +xc_space=' ' +xc_tab=' ' +xc_newline=' +' +IFS="$xc_space$xc_tab$xc_newline" # -# Set internationalization behavior variables +# Set internationalization behavior variables. # LANG='C' @@ -64,6 +72,10 @@ export LANG export LC_ALL export LANGUAGE +# +# Some useful variables. +# + xc_msg_warn='configure: WARNING:' xc_msg_abrt='Can not continue.' xc_msg_err='configure: error:' @@ -263,9 +275,9 @@ AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_VAR_PATH])dnl # Verify that 'tr' utility is found within 'PATH', otherwise abort. # -xc_tst_str='98s7u6c5c4e3s2s10' +xc_tst_str='${xc_tab}98s7u6c5c4e3s2s10' xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \ - | tr -d '0123456789' 2>/dev/null` + | tr -d "0123456789$xc_tab" 2>/dev/null` case "x$xc_tst_str" in @%:@ (( xsuccess) : @@ -294,7 +306,7 @@ AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_TR])dnl xc_tst_str='unknown unknown unknown unknown' xc_tst_str=`echo "$xc_tst_str" 2>/dev/null \ - | wc -w 2>/dev/null | tr -d ' ' 2>/dev/null` + | wc -w 2>/dev/null | tr -d "$xc_space$xc_tab" 2>/dev/null` case "x$xc_tst_str" in @%:@ (( x4) : @@ -322,7 +334,8 @@ 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 | tr -d ' ' 2>/dev/null +xc_tst_str=`cat <<_EOT 2>/dev/null \ + | wc -l 2>/dev/null | tr -d "$xc_space$xc_tab" 2>/dev/null unknown unknown unknown @@ -425,8 +438,7 @@ AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_TR])dnl AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_WC])dnl AC_REQUIRE([_XC_CFG_PRE_BASIC_CHK_UTIL_CAT])dnl AC_REQUIRE([_XC_CFG_PRE_CHECK_PATH_SEPARATOR])dnl -IFS=$xc_configure_preamble_prev_IFS - +dnl xc_configure_preamble_result='yes' ]) |