python: support aarch64

Author: rnpnr

pkg/python/gen.lua

@@ -1,11 +1,27 @@
-cflags{
+local arch = ({
+	aarch64='aarch64',
+	x86_64='x86_64',
+})[config.target.platform:match('[^-]*')]
+if not arch then error('unsupported arch') end
+
+local generic_cflags = {
 	'-D NDEBUG',
 	'-I $dir',
 	'-I $srcdir/Include',
 	'-I $srcdir/Include/internal',
 	'-isystem $builddir/pkg/linux-headers/include',
 }
 
+local arch_cflags = {}
+arch_cflags['aarch64'] = generic_cflags
+arch_cflags['x86_64']  = {
+	'-D HAVE_GCC_ASM_FOR_X64=1',
+	'-D HAVE_GCC_ASM_FOR_X87=1',
+	table.unpack(generic_cflags)
+}
+
+cflags(arch_cflags[arch])
+
 pkg.deps = {'pkg/linux-headers/headers'}
 local libs = {}
 local modules = load 'modules.lua'

pkg/python/pyconfig.h

@@ -133,8 +133,8 @@
 #define HAVE_GAI_STRERROR 1
 /* #undef HAVE_GAMMA */
 /* #undef HAVE_GCC_ASM_FOR_MC68881 */
-#define HAVE_GCC_ASM_FOR_X64 1
-#define HAVE_GCC_ASM_FOR_X87 1
+/* #undef HAVE_GCC_ASM_FOR_X64 */
+/* #undef HAVE_GCC_ASM_FOR_X87 */
 #define HAVE_GCC_UINT128_T 1
 #define HAVE_GETADDRINFO 1
 #define HAVE_GETC_UNLOCKED 1