1dnl Removes -I/usr/include/? from given variable
2AC_DEFUN([CFLAGS_REMOVE_USR_INCLUDE],[
3  ac_new_flags=""
4  for i in [$]$1; do
5    case [$]i in
6    -I/usr/include|-I/usr/include/) ;;
7    *) ac_new_flags="[$]ac_new_flags [$]i" ;;
8    esac
9  done
10  $1=[$]ac_new_flags
11])
12
13dnl Removes -L/usr/lib/? from given variable
14AC_DEFUN([LIB_REMOVE_USR_LIB],[
15  ac_new_flags=""
16  for i in [$]$1; do
17    case [$]i in
18    -L/usr/lib|-L/usr/lib/|-L/usr|-L/usr/) ;;
19    *) ac_new_flags="[$]ac_new_flags [$]i" ;;
20    esac
21  done
22  $1=[$]ac_new_flags
23])
24
25