Okay to push?
* libltdl/m4/libtool.m4 (_LT_CHECK_SHELL_FEATURES): Also ensure
that XSI substring extraction is supported.
(_LT_PROG_XSI_SHELLFNS): Use XSI substring extraction to split
short options to avoid unnecessary forks if the host shell
supports that.
---
ChangeLog | 7 +++++++
libltdl/m4/libtool.m4 | 8 ++++++--
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 2336820..c0f284a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
2010-06-27 Gary V. Vaughan <g...@gnu.org>
+ Add an XSI replacement for func_split_short_opt.
+ * libltdl/m4/libtool.m4 (_LT_CHECK_SHELL_FEATURES): Also ensure
+ that XSI substring extraction is supported.
+ (_LT_PROG_XSI_SHELLFNS): Use XSI substring extraction to split
+ short options to avoid unnecessary forks if the host shell
+ supports that.
+
Use TAB-SPACE in preference to SPACE-TAB.
* libltdl/m4/libtool.m4 (_LT_PROG_XSI_REPLACE): Some editors
might optimise away the SPACE in SPACE-TAB sequences, so use
diff --git a/libltdl/m4/libtool.m4 b/libltdl/m4/libtool.m4
index 8827d4a..19194dd 100644
--- a/libltdl/m4/libtool.m4
+++ b/libltdl/m4/libtool.m4
@@ -7211,8 +7211,8 @@ m4_defun([_LT_CHECK_SHELL_FEATURES],
# Try some XSI features
xsi_shell=no
( _lt_dummy="a/b/c"
- test "${_lt_dummy##*/},${_lt_dummy%/*},"${_lt_dummy%"$_lt_dummy"}, \
- = c,a/b,, \
+ test
"${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy:0:1},${_lt_dummy:2},"${_lt_dummy%"$_lt_dummy"},
\
+ = c,a/b,a,b/c,, \
&& eval 'test $(( 1 + 1 )) -eq 2 \
&& test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
&& xsi_shell=yes
@@ -7301,6 +7301,10 @@ m4_defun([_LT_PROG_XSI_SHELLFNS],
func_split_long_opt_name=${1%%=*}
func_split_long_opt_arg=${1#*=}])
+ _LT_PROG_XSI_REPLACE([func_split_short_opt], [dnl
+ func_split_short_opt_name=${1:1:1}
+ func_split_short_opt_arg=${1:2}])
+
_LT_PROG_XSI_REPLACE([func_lo2o], [dnl
case ${1} in
*.lo) func_lo2o_result=${1%.lo}.${objext} ;;
--
1.7.1
