Should we always look in /usr/local when compiling natively?

I'm guessing we probably should, but I don't remember why this
was added in the first place.  I'm disabling it for now...

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401783

configure.in

@@ -74,14 +74,15 @@ BUILD_CFLAGS="$CFLAGS $CPPFLAGS"
 EXTRA_CFLAGS="$INCLUDE $BASE_CFLAGS"
 BUILD_LDFLAGS="$LDFLAGS"
 EXTRA_LDFLAGS="$BASE_LDFLAGS"
-for path in /usr/local; do
-    if test -d $path/include; then
-        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
-    fi
-    if test -d $path/lib; then
-        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
-    fi
-done
+dnl I can't remember why I added this.  I'm sure it'll come to me...
+dnlfor path in /usr/local; do
+dnl    if test -d $path/include; then
+dnl        EXTRA_CFLAGS="$EXTRA_CFLAGS -I$path/include"
+dnl    fi
+dnl    if test -d $path/lib; then
+dnl        EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$path/lib"
+dnl    fi
+dnldone
 SDL_CFLAGS="$BASE_CFLAGS"
 SDL_LIBS="-lSDL $BASE_LDFLAGS"
 CPPFLAGS="$CPPFLAGS $EXTRA_CFLAGS"