Fix broken brotli build (upstream brotli dropped makefile support and sources.lst file) (#150)

* Fix config file to no longer depend on a sources.lst file.

* Fix readme to show how to build with latest brotli.

Also make the build files real-life with optimizations (so everyone doesn't have to search for the best way to compile things).

* Fix typo

* Cleanup config file to not depend on out-of-date libs

* Remove unused variables.

Author: wyattoday

README.md

@@ -11,7 +11,6 @@ ngx_brotli is a set of two nginx modules:
 - ngx_brotli filter module - used to compress responses on-the-fly,
 - ngx_brotli static module - used to serve pre-compressed files.
 
-[![TravisCI Build Status](https://travis-ci.org/google/ngx_brotli.svg?branch=master)](https://travis-ci.org/google/ngx_brotli)
 
 ## Table of Contents
 
@@ -37,6 +36,29 @@ Both Brotli library and nginx module are under active development.
 
 ## Installation
 
+### Statically compiled
+
+Checkout the latest `ngx_brotli` and build the dependencies:
+
+```
+git clone --recurse-submodules -j8 https://github.com/google/ngx_brotli
+cd ngx_brotli/deps/brotli
+mkdir out && cd out
+cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DCMAKE_C_FLAGS="-Ofast -m64 -march=native -mtune=native -flto -funroll-loops -ffunction-sections -fdata-sections -Wl,--gc-sections" -DCMAKE_CXX_FLAGS="-Ofast -m64 -march=native -mtune=native -flto -funroll-loops -ffunction-sections -fdata-sections -Wl,--gc-sections" -DCMAKE_INSTALL_PREFIX=./installed ..
+cmake --build . --config Release --target brotlienc
+cd ../../../..
+```
+
+
+    $ cd nginx-1.x.x
+    $ export CFLAGS="-m64 -march=native -mtune=native -Ofast -flto -funroll-loops -ffunction-sections -fdata-sections -Wl,--gc-sections"
+    $ export LDFLAGS="-m64 -Wl,-s -Wl,-Bsymbolic -Wl,--gc-sections"
+    $ ./configure --add-module=/path/to/ngx_brotli
+    $ make && make install
+  
+This will compile the module directly into Nginx.
+
+
 ### Dynamically loaded
 
     $ cd nginx-1.x.x
@@ -51,13 +73,7 @@ load_module modules/ngx_http_brotli_filter_module.so;
 load_module modules/ngx_http_brotli_static_module.so;
 ```
 
-### Statically compiled
 
-    $ cd nginx-1.x.x
-    $ ./configure --add-module=/path/to/ngx_brotli
-    $ make && make install
-  
-This will compile the module directly into Nginx.
 
 ## Configuration directives
 

filter/config

@@ -43,12 +43,6 @@ ngx_module_type=HTTP_FILTER
 ngx_module_name=ngx_http_brotli_filter_module
 
 brotli="$ngx_addon_dir/deps/brotli/c"
-if [ ! -f "$brotli/include/brotli/encode.h" ]; then
-  brotli="/usr/local"
-fi
-if [ ! -f "$brotli/include/brotli/encode.h" ]; then
-  brotli="/usr"
-fi
 if [ ! -f "$brotli/include/brotli/encode.h" ]; then
 cat << END
 
@@ -63,33 +57,16 @@ END
     exit 1
 fi
 
-BROTLI_LISTS_FILE="$brotli/../scripts/sources.lst"
-
-if [ -f "$BROTLI_LISTS_FILE" ]; then
-
-BROTLI_LISTS=`cat "$BROTLI_LISTS_FILE" | grep -v "#" | tr '\n' '#' | \
-              sed 's/\\\\#//g' | tr -s ' ' '+' | tr -s '#' ' ' | \
-              sed 's/+c/+$brotli/g' | sed 's/+=+/=/g'`
-for ITEM in ${BROTLI_LISTS}; do
-  VAR=`echo $ITEM | sed 's/=.*//'`
-  VAL=`echo $ITEM | sed 's/.*=//' | tr '+' ' '`
-  eval ${VAR}=\"$VAL\"
-done
-
-else  # BROTLI_LISTS_FILE
-
+BROTLI_OUTPUT_DIRECTORY="$brotli/../out"
 BROTLI_ENC_H="$brotli/include/brotli/encode.h \
               $brotli/include/brotli/port.h \
               $brotli/include/brotli/types.h"
-BROTLI_ENC_LIB="-lbrotlienc"
 
-fi
 
 ngx_module_incs="$brotli/include"
-ngx_module_deps="$BROTLI_COMMON_H $BROTLI_ENC_H"
-ngx_module_srcs="$BROTLI_COMMON_C $BROTLI_ENC_C \
-                 $BROTLI_MODULE_SRC_DIR/ngx_http_brotli_filter_module.c"
-ngx_module_libs="$BROTLI_ENC_LIB -lm"
+ngx_module_deps="$BROTLI_ENC_H"
+ngx_module_srcs="$BROTLI_MODULE_SRC_DIR/ngx_http_brotli_filter_module.c"
+ngx_module_libs="-L$BROTLI_OUTPUT_DIRECTORY -lbrotlienc -lbrotlicommon -lm"
 ngx_module_order="$ngx_module_name \
                   ngx_pagespeed \
                   ngx_http_postpone_filter_module \