Use objcopy to build arm/aarch64 binaries if binutils 2.38 or newer

Fixes: #24

efi/meson.build

@@ -150,9 +150,9 @@ efi_ldflags = ['-T',
  '-L', efi_crtdir,
  '-L', efi_libdir,
  join_paths(efi_crtdir, arch_crt)]
-if host_cpu == 'aarch64' or host_cpu == 'arm'
- # Aarch64 and ARM32 don't have an EFI capable objcopy. Use 'binary'
- # instead, and add required symbols manually.
+if objcopy_version.version_compare ('< 2.38') and (host_cpu == 'aarch64' or host_cpu == 'arm')
+ # older objcopy for Aarch64 and ARM32 are not EFI capable.
+ # Use 'binary' instead, and add required symbols manually.
  efi_ldflags += ['--defsym=EFI_SUBSYSTEM=0xa']
  efi_format = ['-O', 'binary']
 else

meson.build

@@ -10,6 +10,7 @@ conf.set_quoted('PACKAGE_VERSION', meson.project_version())
 
 cc = meson.get_compiler('c')
 objcopy = find_program('objcopy')
+objcopy_version = run_command(objcopy, '--version').stdout().split('\n')[0].split(' ')[-1]
 
 prefix = get_option('prefix')
 libdir = join_paths(prefix, get_option('libdir'))