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#!/bin/sh
if test $# -eq 0; then
echo "user_settings_asm.sh requires one argument specifying compiler flags to pull include directories from." 1>&2
exit 1
fi
# Compress multiple spaces to single spaces, then replace instances of
# "-I " with "-I" (i.e. remove spaces between -I and the include path).
search_string=$(echo "$1" | sed -e 's/ */ /g' -e 's/-I /-I/g')
for token in $search_string
do
case "$token" in
-I*)
# Trim off the leading "-I".
path="${token#-I}"
# Trim off the trailing "/".
path="${path%/}"
if test -e "$path/user_settings.h"; then
user_settings_dir="$path"
user_settings_path="$path/user_settings.h"
break
fi
;;
*)
;;
esac
done
# Fall back to user_settings.h in the current directory.
if test -z "${user_settings_path-}"; then
if test -e "user_settings.h"; then
user_settings_dir="."
user_settings_path="user_settings.h"
fi
fi
if test -z "${user_settings_path-}"; then
echo "Unable to find user_settings.h." 1>&2
exit 1
else
# Strip out anything from user_settings.h that isn't a preprocessor
# directive (i.e. any lines not starting with #). Put the result in
# user_settings_asm.h in the same directory as user_settings.h.
# user_settings_asm.h is safe to include in assembly files (e.g. .S
# files).
sed -e '/^ *#/!d' -e :a -e '$!N;s/\\\n/ /;ta' -e 'P;D' < "$user_settings_path" > "$user_settings_dir/user_settings_asm.h"
fi
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