[Merb for Ruby19] ruby 1.9 bug that tries to load directory in rb_load

% mkdir -p a/foo b
% touch b/foo
% ls -ld a/* b/*
drwxr-xr-x 2 maiha maiha 4096 Feb 15 16:40 a/foo/
-rw-r--r-- 1 maiha maiha    0 Feb 15 16:40 b/foo

% ruby1.9 -Ia -Ib -e 'load "foo"'
-e:1:in `load': Is a directory - /data/home/maiha/load-test/a/foo (Errno::EISDIR)
        from -e:1:in `<main>'

# this occurred in Ubuntu that has "eaccess" system call
# OSX is free from the bug because it has not that system call

[PATCH] file.c

static int
file_load_ok(const char *path)
{
   return eaccess(path, R_OK) == 0 && rb_file_file_p(Qnil, rb_str_new2(path));
}

patched ruby1.9

% ruby1.9 --version
ruby 1.9.1p0 (2009-01-30 revision 1234567890) [i686-linux]
# revision is modified :)

% ruby1.9 -Ia -Ib -e 'load "foo"'
# no errors!!