Bring Intel/HP efi source into project, remove gnu-efi

src/boot/wscript

@@ -2,23 +2,8 @@
 def configure(ctx):
     from os.path import join
 
-    efi_dir = join(ctx.env.EXTERNAL, "gnu-efi")
-    ctx.env.EFI_DIR = efi_dir
+    lds_path = join(ctx.env.ARCH_D, "boot.ld")
 
-    efi_inc = join(efi_dir, "inc")
-    efi_arch = join(efi_dir, ctx.env.POPCORN_ARCH)
-
-    crt0_name = 'crt0-efi-{}.o'.format(ctx.env.POPCORN_ARCH)
-    crt0_path = join(efi_arch, "gnuefi", crt0_name)
-
-    lds_name = 'elf_{}_efi.lds'.format(ctx.env.POPCORN_ARCH)
-    lds_path = join(efi_dir, "gnuefi", lds_name)
-
-    ctx.env.append_value('INCLUDES_EFI', [
-        efi_inc,
-        join(efi_inc, "protocol"),
-        join(efi_inc, ctx.env.POPCORN_ARCH),
-    ])
     ctx.env.append_value('DEFINES_EFI', [
         'KERNEL_FILENAME=L"{}"'.format(ctx.env.KERNEL_FILENAME),
         'GNU_EFI_USE_MS_ABI',
@@ -27,12 +12,9 @@ def configure(ctx):
         'EFI_DEBUG_CLEAR_MEMORY=0',
     ])
     ctx.env.append_value('CFLAGS_EFI', ['-fPIC', '-fshort-wchar', '-Wa,--no-warn'])
-    ctx.env.append_value('STLIB_EFI', ['efi', 'gnuefi'])
-    ctx.env.append_value('STLIBPATH_EFI', [join(efi_arch, "lib"), join(efi_arch, "gnuefi")])
     ctx.env.append_value('LINKFLAGS_EFI', [
         '-shared',
         '-T', lds_path,
-        crt0_path,
     ])
     ctx.env.append_value('SECTIONS_EFI', [
         "-j .text",
@@ -46,13 +28,8 @@ def configure(ctx):
     ])
 
 def build(bld):
-    bld(rule = "make -C ${EFI_DIR} > /dev/null")
-    bld.add_group()
-
-    import os
-    sources = [f for f in os.listdir(str(bld.path))
-                if f.endswith('.c')
-                or f.endswith('.s')]
+    sources = bld.path.ant_glob("**/*.c")
+    sources += bld.path.ant_glob("**/*.s")
 
     bld.program(
         source      = sources,