Mark it binary for non POSIX.

1 files changed, 1 insertions, 1 deletions

diff --git a/mkelf.lua b/mkelf.lua
index 75be2f5..1aea127 100644
--- a/mkelf.lua
+++ b/mkelf.lua
@@ -257,7 +257,7 @@ local function main()
         output = arg[i + 1]
         ::continue::
     end
-    local f = assert(io.open(output, "w"))
+    local f = assert(io.open(output, "wb"))
     header.phnum = #phdrs
     header.phentsize = (header.class == Class.bit64) and 0x38 or 0x20
     f:write(ElfHeader_pack(header))