lib: rename aligned_malloc.c to utils.c

Prepare to use this file for more utility functions.

Makefile

@@ -132,7 +132,7 @@ LIB_CFLAGS += $(CFLAGS) -fvisibility=hidden -D_ANSI_SOURCE
 
 LIB_HEADERS := $(wildcard lib/*.h) $(wildcard lib/*/*.h)
 
-LIB_SRC := lib/aligned_malloc.c lib/deflate_decompress.c \
+LIB_SRC := lib/deflate_decompress.c lib/utils.c \
 	   $(wildcard lib/*/cpu_features.c)
 
 DECOMPRESSION_ONLY :=

Makefile.msc

@@ -18,13 +18,13 @@ SHARED_LIB = libdeflate.dll
 IMPORT_LIB = libdeflate.lib
 
 STATIC_LIB_OBJ =			\
-	  lib/aligned_malloc.obj	\
 	  lib/adler32.obj		\
 	  lib/crc32.obj			\
 	  lib/deflate_compress.obj	\
 	  lib/deflate_decompress.obj	\
 	  lib/gzip_compress.obj		\
 	  lib/gzip_decompress.obj	\
+	  lib/utils.obj			\
 	  lib/x86/cpu_features.obj	\
 	  lib/zlib_compress.obj		\
 	  lib/zlib_decompress.obj

lib/utils.c

@@ -1,7 +1,5 @@
 /*
- * aligned_malloc.c - aligned memory allocation
- *
- * Originally public domain; changes after 2016-09-07 are copyrighted.
+ * utils.c - utility functions for libdeflate
  *
  * Copyright 2016 Eric Biggers
  *
@@ -27,12 +25,6 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
-/*
- * This file provides portable aligned memory allocation functions that only
- * use malloc() and free().  This avoids portability problems with
- * posix_memalign(), aligned_alloc(), etc.
- */
-
 #include <stdlib.h>
 
 #include "lib_common.h"