fix compile error

2 files changed, 19 insertions, 8 deletions

diff --git a/xmake/core/base/binutils.lua b/xmake/core/base/binutils.lua
index 995f0d0a7..77b17dc92 100644
--- a/xmake/core/base/binutils.lua
+++ b/xmake/core/base/binutils.lua
@@ -21,6 +21,9 @@
 -- define module
 local binutils = binutils or {}
 
+-- load modules
+local os = require("base/os")
+
 -- save original interfaces
 binutils._bin2c = binutils._bin2c or binutils.bin2c
 binutils._bin2coff = binutils._bin2coff or binutils.bin2coff
@@ -55,7 +58,15 @@ function binutils.bin2obj(binaryfile, outputfile, opt)
     opt = opt or {}
     local format = opt.format
     if not format then
-        return nil, "bin2obj: format is required (coff, elf, or macho)"
+        -- auto-detect format based on host platform
+        local host = os.host()
+        if host == "windows" or host == "mingw" or host == "msys" or host == "cygwin" then
+            format = "coff"
+        elseif host == "macosx" or host == "iphoneos" or host == "watchos" or host == "appletvos" then
+            format = "macho"
+        else
+            format = "elf"
+        end
     end
     format = format:lower()
 
diff --git a/xmake/modules/utils/binary/bin2obj.lua b/xmake/modules/utils/binary/bin2obj.lua
index 7870e2544..95e705ca6 100644
--- a/xmake/modules/utils/binary/bin2obj.lua
+++ b/xmake/modules/utils/binary/bin2obj.lua
@@ -47,17 +47,17 @@ function _do_bin2obj(binarypath, outputpath, opt)
     local basename = filename:gsub("%.", "_")
     opt.basename = basename
 
-    -- get format (default: coff)
-    local format = opt.format or "coff"
-    format = format:lower()
-
     -- validate format
-    if format ~= "coff" and format ~= "elf" and format ~= "macho" then
-        raise("bin2obj: unsupported format '%s' (supported: coff, elf, macho)", format)
+    local format = opt.format
+    if format then
+        format = format:lower()
+        if format ~= "coff" and format ~= "elf" and format ~= "macho" then
+            raise("bin2obj: unsupported format '%s' (supported: coff, elf, macho)", format)
+        end
     end
 
     -- trace
-    print("converting binary file %s to %s object file %s ..", binarypath, format, outputpath)
+    print("converting binary file %s to %s object file %s ..", binarypath, format or "coff", outputpath)
 
     -- do conversion
     binutils.bin2obj(binarypath, outputpath, opt)