46 lines
1.9 KiB
Plaintext
46 lines
1.9 KiB
Plaintext
# Find for parameter expansion string replace capable shell
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# (i. e. shell supporting ${VAR%bc} and ${VAR#ab})
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# Result is returned in PARAMETER_EXPANSION_STRING_REPLACE_CAPABLE_SHELL
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AC_DEFUN([AC_PARAMETER_EXPANSION_STRING_REPLACE_CAPABLE_SHELL],
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[
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AC_ARG_WITH([parameter_expansion_string_replace_capable_shell],[AS_HELP_STRING([--with-parameter-expansion-string-replace-capable-shell],[full path to shell that supports parameter expansion string replace (i. e. ${var%string} and ${var#string}) [default=check]])],[
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ac_parameter_expansion_string_replace_capable_shell="$withval"
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],[
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ac_parameter_expansion_string_replace_capable_shell="none"
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AC_CHECK_FILE([/bin/bash],[
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BASH="/bin/bash"
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],[
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AC_PATH_PROG([BASH],[bash])
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])
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if test "x$BASH" != "x" ; then
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ac_parameter_expansion_string_replace_capable_shell="$BASH"
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else
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AC_CHECK_FILE([/bin/ash],[
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ASH="/bin/ash"
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],[
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AC_PATH_PROG([ASH],[ash])
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])
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if test "x$ASH" != "x" ; then
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ac_parameter_expansion_string_replace_capable_shell="$ASH"
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fi
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fi
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])
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AC_CACHE_CHECK([for parameter expansion string replace capable shell],
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[ac_cv_parameter_expansion_string_replace_capable_shell],[
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ac_cv_parameter_expansion_string_replace_capable_shell="none"
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if test x"$ac_parameter_expansion_string_replace_capable_shell" = xnone ; then
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if test x`/bin/sh -c "exec 2>/dev/null ; VAR=abc ; echo \\${VAR%bc}\\${VAR#ab}"` = xac ; then
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ac_cv_parameter_expansion_string_replace_capable_shell="/bin/sh"
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fi
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else
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ac_cv_parameter_expansion_string_replace_capable_shell="$ac_parameter_expansion_string_replace_capable_shell"
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fi
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])
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if test x"$ac_cv_parameter_expansion_string_replace_capable_shell" != "xnone" ; then
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PARAMETER_EXPANSION_STRING_REPLACE_CAPABLE_SHELL="$ac_cv_parameter_expansion_string_replace_capable_shell"
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else
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PARAMETER_EXPANSION_STRING_REPLACE_CAPABLE_SHELL=""
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fi
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AC_SUBST([PARAMETER_EXPANSION_STRING_REPLACE_CAPABLE_SHELL])
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])
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