LDFLAGS
CFLAGS
CC
-regex_realpath
target_os
target_vendor
target_cpu
NONENONEs,x,x, &&
program_prefix=${target_alias}-
-for ac_prog in realpath
-do
- # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_regex_realpath+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if test -n "$regex_realpath"; then
- ac_cv_prog_regex_realpath="$regex_realpath" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
- IFS=$as_save_IFS
- test -z "$as_dir" && as_dir=.
- for ac_exec_ext in '' $ac_executable_extensions; do
- if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
- ac_cv_prog_regex_realpath="$ac_prog"
- $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
- break 2
- fi
-done
- done
-IFS=$as_save_IFS
-
-fi
-fi
-regex_realpath=$ac_cv_prog_regex_realpath
-if test -n "$regex_realpath"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $regex_realpath" >&5
-$as_echo "$regex_realpath" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
- test -n "$regex_realpath" && break
-done
-
-if test x$regex_realpath = "x" ; then
- as_fn_error $? "realpath is required to build GNU Modula-2 (hint install coreutils)." "$LINENO" 5
-fi
-
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
-AC_CHECK_PROGS(regex_realpath, realpath)
-if test x$regex_realpath = "x" ; then
- AC_MSG_ERROR([realpath is required to build GNU Modula-2 (hint install coreutils).])
-fi
-
AC_CHECK_FUNCS([stpcpy])
AC_CHECK_HEADERS(sys/types.h)
Usage () {
- echo "Usage: calcpath pathcomponent1 pathcomponent2 subdir"
- echo -n " if pathcomponent1 is relative then pathcomponent1/pathcomponet2/subdir is"
- echo " returned"
- echo " otherwise pathcomponet2/subdir is returned"
- echo " the path is checked for legality in subdir."
+ cat<<EOF
+Usage: $0 pathcomponent1 pathcomponent2 subdir
+ if pathcomponent2 is relative then pathcomponent1/pathcompinent2/subdir is returned
+ otherwise pathcomponent2/subdir is returned
+ the path is checked for legality in subdir.
+EOF
}
+die () {
+ printf "calcpath: error: %s\n" "$1" >&2
+ exit 1
+}
if [ $# -eq 3 ]; then
- if [ "$(echo $2 | cut -b 1)" = "." ] ; then
- # relative path
- the_path=$1/$2/$3
- else
- the_path=$2/$3
- fi
- cd $3
- if realpath ${the_path} > /dev/null ; then
- echo ${the_path}
+ case "$2" in
+ /*) the_path="$2/$3" ;;
+ *) the_path="$1/$2/$3" ;;
+ esac
+ cd "$3" || die "could not access $3"
+ if ( cd "$the_path" ); then
+ printf '%s\n' "${the_path}"
else
- echo "calcpath: error ${the_path} is not a valid path in subdirectory $3" 1>&2
- exit 1
+ die "${the_path} is not a valid path in subdirectory $3"
fi
else
Usage