From b0119419b6edc287062e3a34a199a4315d860d28 Mon Sep 17 00:00:00 2001
From: Ariadne Conill <ariadne@dereferenced.org>
Date: Tue, 14 Dec 2021 13:59:42 -0600
Subject: portability: take over apk_endian.h

---
 portability/apk_endian.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++
 portability/meson.build  |  5 +++++
 src/apk_endian.h         | 33 ----------------------------
 src/meson.build          |  8 ++++++-
 4 files changed, 69 insertions(+), 34 deletions(-)
 create mode 100644 portability/apk_endian.h
 delete mode 100644 src/apk_endian.h

diff --git a/portability/apk_endian.h b/portability/apk_endian.h
new file mode 100644
index 0000000..284b07b
--- /dev/null
+++ b/portability/apk_endian.h
@@ -0,0 +1,57 @@
+/* apk_endian.h - Alpine Package Keeper (APK)
+ *
+ * Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
+ * Copyright (C) 2008-2011 Timo Teräs <timo.teras@iki.fi>
+ * Copyright (C) 2011 Rich Felker
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ */
+
+#ifndef APK_ENDIAN_H
+#define APK_ENDIAN_H
+
+static __inline uint16_t __bswap16(uint16_t __x)
+{
+	return (__x<<8) | (__x>>8);
+}
+
+static __inline uint32_t __bswap32(uint32_t __x)
+{
+	return (__x>>24) | (__x>>8&0xff00) | (__x<<8&0xff0000) | (__x<<24);
+}
+
+static __inline uint64_t __bswap64(uint64_t __x)
+{
+	return (__bswap32(__x)+0ULL)<<32 | __bswap32(__x>>32);
+}
+
+#ifndef WORDS_BIGENDIAN
+# define htobe16(x) __bswap16(x)
+# define be16toh(x) __bswap16(x)
+# define htobe32(x) __bswap32(x)
+# define be32toh(x) __bswap32(x)
+# define htobe64(x) __bswap64(x)
+# define be64toh(x) __bswap64(x)
+# define htole16(x) (uint16_t)(x)
+# define le16toh(x) (uint16_t)(x)
+# define htole32(x) (uint32_t)(x)
+# define le32toh(x) (uint32_t)(x)
+# define htole64(x) (uint64_t)(x)
+# define le64toh(x) (uint64_t)(x)
+#else
+# define htobe16(x) (uint16_t)(x)
+# define be16toh(x) (uint16_t)(x)
+# define htobe32(x) (uint32_t)(x)
+# define be32toh(x) (uint32_t)(x)
+# define htobe64(x) (uint64_t)(x)
+# define be64toh(x) (uint64_t)(x)
+# define htole16(x) __bswap16(x)
+# define le16toh(x) __bswap16(x)
+# define htole32(x) __bswap32(x)
+# define le32toh(x) __bswap32(x)
+# define htole64(x) __bswap64(x)
+# define le64toh(x) __bswap64(x)
+#endif
+
+#endif
diff --git a/portability/meson.build b/portability/meson.build
index e3be65d..851dfca 100644
--- a/portability/meson.build
+++ b/portability/meson.build
@@ -1,6 +1,11 @@
 cc = meson.get_compiler('c')
 
 
+if host_machine.endian() == 'big'
+	add_project_arguments('-DWORDS_BIGENDIAN', language: 'c')
+endif
+
+
 libportability_src = []
 
 
diff --git a/src/apk_endian.h b/src/apk_endian.h
deleted file mode 100644
index d4ff516..0000000
--- a/src/apk_endian.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* apk_endian.h - Alpine Package Keeper (APK)
- *
- * Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
- * Copyright (C) 2008-2011 Timo Teräs <timo.teras@iki.fi>
- * All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0-only
- */
-
-#ifndef APK_ENDIAN_H
-#define APK_ENDIAN_H
-
-#ifdef __linux__
-# include <endian.h>
-#endif
-
-#ifdef __APPLE__
-# include <libkern/OSByteOrder.h>
-# define htobe16(x) OSSwapHostToBigInt16(x)
-# define htole16(x) OSSwapHostToLittleInt16(x)
-# define be16toh(x) OSSwapBigToHostInt16(x)
-# define le16toh(x) OSSwapLittleToHostInt16(x)
-# define htobe32(x) OSSwapHostToBigInt32(x)
-# define htole32(x) OSSwapHostToLittleInt32(x)
-# define be32toh(x) OSSwapBigToHostInt32(x)
-# define le32toh(x) OSSwapLittleToHostInt32(x)
-# define htobe64(x) OSSwapHostToBigInt64(x)
-# define htole64(x) OSSwapHostToLittleInt64(x)
-# define be64toh(x) OSSwapBigToHostInt64(x)
-# define le64toh(x) OSSwapLittleToHostInt64(x)
-#endif
-
-#endif
diff --git a/src/meson.build b/src/meson.build
index ccfdbb0..da6bb9b 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -160,7 +160,12 @@ if(lua_dep.found())
 	libluaapk = library(
 		'luaapk',
 		luaapk_src,
-		dependencies: [lua_dep, libapk_dep, shared_deps],
+		dependencies: [
+			lua_dep,
+			libapk_dep,
+			shared_deps,
+			libportability_dep.partial_dependency(includes: true),
+		],
 		install: true,
 		install_dir: lua_dep.get_pkgconfig_variable('libdir'),
 		c_args: apk_cargs,
@@ -175,6 +180,7 @@ apk_exe = executable(
 		libapk_dep,
 		shared_deps,
 		libfetch_dep.partial_dependency(includes: true),
+		libportability_dep.partial_dependency(includes: true),
 	],
 	c_args: apk_cargs,
 )
-- 
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