build: create an encoder and decoder library

Based on commit e992cce7a17 from https://github.com/bagder/libbrotli

Makefile.am

@@ -0,0 +1,89 @@
+AUTOMAKE_OPTIONS = foreign nostdinc subdir-objects
+
+ACLOCAL_AMFLAGS = -I m4
+
+lib_LTLIBRARIES = libbrotlidec.la libbrotlienc.la
+
+DECODE = dec/bit_reader.c dec/decode.c dec/huffman.c dec/state.c	\
+  dec/dictionary.c
+
+ENCODE = enc/backward_references.cc enc/histogram.cc			\
+ enc/block_splitter.cc enc/literal_cost.cc enc/brotli_bit_stream.cc	\
+ enc/metablock.cc enc/encode.cc enc/static_dict.cc			\
+ enc/encode_parallel.cc enc/streams.cc enc/entropy_encode.cc		\
+ enc/dictionary.cc enc/utf8_util.cc enc/compress_fragment.cc		\
+ enc/compress_fragment_two_pass.cc
+
+DECODEHEADERS = dec/decode.h dec/state.h dec/types.h dec/bit_reader.h	\
+ dec/huffman.h dec/port.h dec/context.h dec/dictionary.h		\
+ dec/transform.h dec/prefix.h
+
+ENCODEHEADERS = enc/encode.h enc/command.h enc/hash.h enc/ringbuffer.h	\
+ enc/static_dict.h enc/streams.h enc/fast_log.h enc/prefix.h		\
+ enc/dictionary_hash.h enc/find_match_length.h enc/port.h		\
+ enc/transform.h enc/dictionary.h enc/backward_references.h		\
+ enc/histogram.h enc/block_splitter.h enc/metablock.h enc/context.h	\
+ enc/literal_cost.h enc/cluster.h enc/bit_cost.h enc/entropy_encode.h	\
+ enc/brotli_bit_stream.h enc/write_bits.h enc/static_dict_lut.h		\
+ enc/encode_parallel.h enc/types.h enc/utf8_util.h			\
+ enc/compress_fragment.h enc/compress_fragment_two_pass.h		\
+ enc/entropy_encode_static.h
+
+EXTRA_DIST = CONTRIBUTING.md README.md
+
+# install headers in $(includedir) with subdirs
+nobase_include_HEADERS = $(DECODEHEADERS) $(ENCODEHEADERS)
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libbrotlienc.pc libbrotlidec.pc
+pkgincludedir= $(includedir)/brotli
+pkginclude_HEADERS = 
+
+LIBBROTLIENC_VERSION_INFO = -version-info 1:0:0
+LIBBROTLIDEC_VERSION_INFO = -version-info 1:0:0
+# This flag accepts an argument of the form current[:revision[:age]]. So,
+# passing -version-info 3:12:1 sets current to 3, revision to 12, and age to
+# 1.
+#
+# If either revision or age are omitted, they default to 0. Also note that age
+# must be less than or equal to the current interface number.
+#
+# Here are a set of rules to help you update your library version information: 
+#
+# 1.Start with version information of 0:0:0 for each libtool library.
+#
+# 2.Update the version information only immediately before a public release of
+# your software. More frequent updates are unnecessary, and only guarantee
+# that the current interface number gets larger faster.
+#
+# 3.If the library source code has changed at all since the last update, then
+# increment revision (c:r+1:a)
+#
+# 4.If any interfaces have been added, removed, or changed since the last
+# update, increment current, and set revision to 0. (c+1:r=0:a)
+#
+# 5.If any interfaces have been added since the last public release, then
+# increment age. (c:r:a+1)
+#
+# 6.If any interfaces have been removed since the last public release, then
+# set age to 0. (c:r:a=0)
+#
+
+libbrotlidec_la_CPPFLAGS_EXTRA = -DBROTLI_BUILDING_LIBRARY
+libbrotlidec_la_LDFLAGS = $(AM_LDFLAGS) $(LIBBROTLIDEC_VERSION_INFO) $(LDFLAGS)
+libbrotlidec_la_CFLAGS = $(AM_CFLAGS) $(libbrotli_la_CFLAGS_EXTRA)
+libbrotlidec_la_CXXFLAGS =
+libbrotlidec_la_CPPFLAGS = $(AM_CPPFLAGS) $(libbrotli_la_CPPFLAGS_EXTRA)
+libbrotlidec_la_SOURCES = $(DECODE) $(DECODEHEADERS)
+
+libbrotlienc_la_CPPFLAGS_EXTRA = -DBROTLI_BUILDING_LIBRARY
+libbrotlienc_la_LDFLAGS = $(AM_LDFLAGS) $(LIBBROTLIENC_VERSION_INFO) $(LDFLAGS)
+libbrotlienc_la_CFLAGS = $(AM_CFLAGS) $(libbrotli_la_CFLAGS_EXTRA)
+libbrotlienc_la_CXXFLAGS =
+libbrotlienc_la_CPPFLAGS = $(AM_CPPFLAGS) $(libbrotli_la_CPPFLAGS_EXTRA)
+libbrotlienc_la_SOURCES = $(ENCODE) $(ENCODEHEADERS)
+
+# where to install the brotli headers
+libbrotlienc_ladir = $(includedir)
+libbrotlidec_ladir = $(includedir)
+

autogen.sh

@@ -0,0 +1,22 @@
+# !/bin/sh -e
+
+automake -a
+
+AUTORECONF=`which autoreconf 2>/dev/null`
+if test $? -ne 0; then
+  echo "No 'autoreconf' found. You must install the autoconf package."
+  exit 1
+fi
+
+# create m4 before autoreconf
+mkdir m4 2>/dev/null
+
+$AUTORECONF --install --force --symlink || exit $?
+
+echo
+echo "----------------------------------------------------------------"
+echo "Initialized build system. For a common configuration please run:"
+echo "----------------------------------------------------------------"
+echo
+echo "./configure"
+echo

configure.ac

@@ -0,0 +1,15 @@
+AC_PREREQ(2.57)
+
+AC_INIT([brotli], [0.4.0], [-])
+AC_CONFIG_SRCDIR([dec/decode.h])
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_MACRO_DIR([m4])
+LT_INIT
+AM_INIT_AUTOMAKE()
+AM_MAINTAINER_MODE
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+AC_PROG_CXX
+
+AC_CONFIG_FILES([Makefile libbrotlienc.pc libbrotlidec.pc])
+AC_OUTPUT

libbrotlidec.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: @PACKAGE_NAME@dec
+Description: Brotli decoder library
+Version: @PACKAGE_VERSION@
+URL: @PACKAGE_URL@
+Libs: -L${libdir} -lbrotlidec
+Cflags: -I${includedir}

libbrotlienc.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: @PACKAGE_NAME@enc
+Description: Brotli encoder library
+Version: @PACKAGE_VERSION@
+URL: @PACKAGE_URL@
+Libs: -L${libdir} -lbrotlienc
+Cflags: -I${includedir}