From f2988212b0424ce808e4d3c2b043144cfbaff6ff Mon Sep 17 00:00:00 2001
From: Morten Delenk <mtg.morten@googlemail.com>
Date: Tue, 15 Dec 2015 12:16:31 +0100
Subject: [PATCH] Created shared library

---
 include/compress.h | 51 ++++++++++++++++++++++++++++++++++++++++++++++
 makefile           | 17 +++++++++++++---
 2 files changed, 65 insertions(+), 3 deletions(-)
 create mode 100644 include/compress.h

diff --git a/include/compress.h b/include/compress.h
new file mode 100644
index 0000000..cbcf315
--- /dev/null
+++ b/include/compress.h
@@ -0,0 +1,51 @@
+/*
+	exhal / inhal (de)compression routines
+
+	Copyright (c) 2013 Devin Acker
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in
+	all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+	THE SOFTWARE.
+
+*/
+
+#ifndef _COMPRESS_H
+#define _COMPRESS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+#define DATA_SIZE     65536
+#define RUN_SIZE      32
+#define LONG_RUN_SIZE 1024
+
+extern size_t pack   (uint8_t *unpacked, size_t inputsize, uint8_t *packed, int fast);
+extern size_t unpack (uint8_t *packed, uint8_t *unpacked);
+
+extern size_t unpack_from_file (FILE *file, size_t offset, uint8_t *unpacked);
+
+#ifdef __cplusplus
+}
+#endif
+
+// end include guard
+#endif
diff --git a/makefile b/makefile
index 20b7abb..3806ddf 100644
--- a/makefile
+++ b/makefile
@@ -2,7 +2,7 @@
 # copyright 2013 Devin Acker (Revenant)
 # See copying.txt for legal information.
 
-CFLAGS  += -std=c99 -Os -Wall -s
+CFLAGS  += -std=c99 -Os -Wall -s -fpic
 
 # Add extension when compiling for Windows
 ifdef SystemRoot
@@ -12,14 +12,14 @@ ifdef SystemRoot
 endif
 
 # Comment this line to suppress detailed decompression information on stdout
-DEFINES += -DEXTRA_OUT
+#DEFINES += -DEXTRA_OUT
 # Uncomment this line to enable debug output
 #DEFINES += -DDEBUG_OUT
 
 all: inhal$(EXT) exhal$(EXT)
 
 clean:
-	$(RM) inhal$(EXT) exhal$(EXT) compress.o
+	$(RM) inhal$(EXT) exhal$(EXT) compress.o libexhal.so
 	
 inhal$(EXT): inhal.c compress.o
 	$(CC) $(DEFINES) $(CFLAGS) -o inhal$(EXT) inhal.c compress.o
@@ -29,3 +29,14 @@ exhal$(EXT): exhal.c compress.o
 	
 compress.o: compress.c
 	$(CC) $(DEFINES) $(CFLAGS) -c compress.c
+
+libexhal.so: compress.o
+	gcc -shared -o $@ $^
+
+install: all libexhal.so
+	mkdir -pv /usr/local/bin
+	cp inhal$(EXT) exhal$(EXT) /usr/local/bin
+	mkdir -pv /usr/local/lib
+	cp libexhal.so /usr/local/lib
+	mkdir -pv /usr/local/include
+	cp include/* /usr/local/include