7 files changed, 16 insertions, 14 deletions
diff --git a/src/liblzma/common/alone_decoder.c b/src/liblzma/common/alone_decoder.c
index 039b4285..678c79e6 100644
--- a/src/liblzma/common/alone_decoder.c
+++ b/src/liblzma/common/alone_decoder.c
@@ -46,7 +46,7 @@ struct lzma_coder_s {
 
 static lzma_ret
 alone_decode(lzma_coder *coder,
-		lzma_allocator *allocator lzma_attribute((unused)),
+		lzma_allocator *allocator lzma_attribute((__unused__)),
 		const uint8_t *restrict in, size_t *restrict in_pos,
 		size_t in_size, uint8_t *restrict out,
 		size_t *restrict out_pos, size_t out_size,
diff --git a/src/liblzma/common/alone_encoder.c b/src/liblzma/common/alone_encoder.c
index 7f616557..eb1697e9 100644
--- a/src/liblzma/common/alone_encoder.c
+++ b/src/liblzma/common/alone_encoder.c
@@ -32,7 +32,7 @@ struct lzma_coder_s {
 
 static lzma_ret
 alone_encode(lzma_coder *coder,
-		lzma_allocator *allocator lzma_attribute((unused)),
+		lzma_allocator *allocator lzma_attribute((__unused__)),
 		const uint8_t *restrict in, size_t *restrict in_pos,
 		size_t in_size, uint8_t *restrict out,
 		size_t *restrict out_pos, size_t out_size,
diff --git a/src/liblzma/common/block_encoder.c b/src/liblzma/common/block_encoder.c
index b34c5013..1eeb502b 100644
--- a/src/liblzma/common/block_encoder.c
+++ b/src/liblzma/common/block_encoder.c
@@ -144,7 +144,7 @@ block_encoder_end(lzma_coder *coder, lzma_allocator *allocator)
 
 static lzma_ret
 block_encoder_update(lzma_coder *coder, lzma_allocator *allocator,
-		const lzma_filter *filters lzma_attribute((unused)),
+		const lzma_filter *filters lzma_attribute((__unused__)),
 		const lzma_filter *reversed_filters)
 {
 	if (coder->sequence != SEQ_CODE)
diff --git a/src/liblzma/common/common.c b/src/liblzma/common/common.c
index 6afb4fbf..85ae96a9 100644
--- a/src/liblzma/common/common.c
+++ b/src/liblzma/common/common.c
@@ -35,7 +35,7 @@ lzma_version_string(void)
 // Memory allocation //
 ///////////////////////
 
-extern void * lzma_attribute((malloc))
+extern void * lzma_attribute((__malloc__)) lzma_attr_alloc_size(1)
 lzma_alloc(size_t size, lzma_allocator *allocator)
 {
 	// Some malloc() variants return NULL if called with size == 0.
diff --git a/src/liblzma/common/common.h b/src/liblzma/common/common.h
index 9d776f9a..5c92af27 100644
--- a/src/liblzma/common/common.h
+++ b/src/liblzma/common/common.h
@@ -221,7 +221,7 @@ struct lzma_internal_s {
 
 /// Allocates memory
 extern void *lzma_alloc(size_t size, lzma_allocator *allocator)
-		lzma_attribute((malloc)) lzma_attr_alloc_size(1);
+		lzma_attribute((__malloc__)) lzma_attr_alloc_size(1);
 
 /// Frees memory
 extern void lzma_free(void *ptr, lzma_allocator *allocator);
diff --git a/src/liblzma/common/index_decoder.c b/src/liblzma/common/index_decoder.c
index a6bc650e..83c8a3af 100644
--- a/src/liblzma/common/index_decoder.c
+++ b/src/liblzma/common/index_decoder.c
@@ -56,10 +56,11 @@ struct lzma_coder_s {
 static lzma_ret
 index_decode(lzma_coder *coder, lzma_allocator *allocator,
 		const uint8_t *restrict in, size_t *restrict in_pos,
-		size_t in_size, uint8_t *restrict out lzma_attribute((unused)),
-		size_t *restrict out_pos lzma_attribute((unused)),
-		size_t out_size lzma_attribute((unused)),
-		lzma_action action lzma_attribute((unused)))
+		size_t in_size,
+		uint8_t *restrict out lzma_attribute((__unused__)),
+		size_t *restrict out_pos lzma_attribute((__unused__)),
+		size_t out_size lzma_attribute((__unused__)),
+		lzma_action action lzma_attribute((__unused__)))
 {
 	// Similar optimization as in index_encoder.c
 	const size_t in_start = *in_pos;
diff --git a/src/liblzma/common/index_encoder.c b/src/liblzma/common/index_encoder.c
index c10d7afa..45919f09 100644
--- a/src/liblzma/common/index_encoder.c
+++ b/src/liblzma/common/index_encoder.c
@@ -42,12 +42,13 @@ struct lzma_coder_s {
 
 static lzma_ret
 index_encode(lzma_coder *coder,
-		lzma_allocator *allocator lzma_attribute((unused)),
-		const uint8_t *restrict in lzma_attribute((unused)),
-		size_t *restrict in_pos lzma_attribute((unused)),
-		size_t in_size lzma_attribute((unused)),
+		lzma_allocator *allocator lzma_attribute((__unused__)),
+		const uint8_t *restrict in lzma_attribute((__unused__)),
+		size_t *restrict in_pos lzma_attribute((__unused__)),
+		size_t in_size lzma_attribute((__unused__)),
 		uint8_t *restrict out, size_t *restrict out_pos,
-		size_t out_size, lzma_action action lzma_attribute((unused)))
+		size_t out_size,
+		lzma_action action lzma_attribute((__unused__)))
 {
 	// Position where to start calculating CRC32. The idea is that we
 	// need to call lzma_crc32() only once per call to index_encode().