| dnl ### A macro to find the include directory, useful for cross-compiling. |
| AC_DEFUN([AC_INCLUDEDIR], |
| [AC_REQUIRE([AC_PROG_AWK])dnl |
| AC_SUBST(includedir) |
| AC_MSG_CHECKING(for primary include directory) |
| includedir=/usr/include |
| if test -n "$GCC" |
| then |
| >conftest.c |
| new_includedir=` |
| $CC -v -E conftest.c 2>&1 | $AWK ' |
| /^End of search list/ { print last; exit } |
| { last = [$]1 } |
| ' |
| ` |
| rm -f conftest.c |
| if test -n "$new_includedir" && test -d "$new_includedir" |
| then |
| includedir=$new_includedir |
| fi |
| fi |
| AC_MSG_RESULT($includedir) |
| ]) |
