aclocal.m4
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aclocal.m4
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	dnl $Id: aclocal.m4,v 1.29.14.1 2005/11/06 21:14:35 ohl Exp $
	dnl --------------------------------------------------------------------
	dnl
	dnl THO_FILENAME_CASE_CONVERSION
	dnl
	dnl Define two variables LOWERCASE and UPPERCASE for /bin/sh filters
	dnl that convert strings to lower and upper case, respectively
	dnl
	AC_DEFUN([THO_FILENAME_CASE_CONVERSION],
	[AC_SUBST([LOWERCASE])
	AC_SUBST([UPPERCASE])
	AC_PATH_PROGS(TR,tr)
	AC_PATH_PROGS(SED,sed)
	AC_MSG_CHECKING([for case conversion])
	if test -n "$TR"; then
	LOWERCASE="$TR A-Z a-z"
	UPPERCASE="$TR a-z A-Z"
	THO_FILENAME_CASE_CONVERSION_TEST
	fi
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$TR works])
	else
	LOWERCASE="$SED y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"
	UPPERCASE="$SED y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/"
	THO_FILENAME_CASE_CONVERSION_TEST
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$SED works])
	fi
	fi])
	dnl
	AC_DEFUN([THO_FILENAME_CASE_CONVERSION_TEST],
	[if test "`echo fOo \| $LOWERCASE`" != "foo"; then
	LOWERCASE=""
	fi
	if test "`echo fOo \| $UPPERCASE`" != "FOO"; then
	UPPERCASE=""
	fi])