From b49a09ac7bd9386f5cf142f0762dc1cd8fcaa01c Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Fri, 23 May 2014 17:02:51 +0200
Subject: [PATCH 1/5] Added autoconf/automake support. This way we can check
 for required dependencies and minimum versions. No functional changes have
 been done to the Makefile yet.

---
 .travis.yml  |   2 +
 COPYING      |   1 +
 ChangeLog    |   1 +
 Makefile     | 191 ---------------------------------------------------
 Makefile.am  | 159 ++++++++++++++++++++++++++++++++++++++++++
 NEWS         |   1 +
 README       |   1 +
 autogen.sh   |  22 ++++++
 configure.ac |  90 ++++++++++++++++++++++++
 9 files changed, 277 insertions(+), 191 deletions(-)
 create mode 100644 COPYING
 create mode 100644 ChangeLog
 delete mode 100644 Makefile
 create mode 100644 Makefile.am
 create mode 100644 NEWS
 create mode 100644 README
 create mode 100755 autogen.sh
 create mode 100644 configure.ac

diff --git a/.travis.yml b/.travis.yml
index 6a55c186..3a8545a4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,8 @@ install:
   - sudo npm install -g autoprefixer
 
 script:
+  - ./autogen.sh
+  - ./configure
   - make get
   - make styles
   - make javascript
diff --git a/COPYING b/COPYING
new file mode 100644
index 00000000..da06b0d0
--- /dev/null
+++ b/COPYING
@@ -0,0 +1 @@
+See LICENSE for further information.
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 00000000..1182318c
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1 @@
+See debian/changelog or https://github.com/strukturag/spreed-webrtc for further information.
diff --git a/Makefile b/Makefile
deleted file mode 100644
index 2977bd8b..00000000
--- a/Makefile
+++ /dev/null
@@ -1,191 +0,0 @@
-#
-# Spreed WebRTC.
-# Copyright (C) 2013-2014 struktur AG
-#
-# This file is part of Spreed WebRTC.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Affero General Public License for more details.
-#
-# You should have received a copy of the GNU Affero General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-
-PKG := app/spreed-webrtc-server
-EXENAME := spreed-webrtc-server
-CONFIG_FILE ?= spreed-webrtc-server.conf
-CONFIG_PATH ?= /etc
-
-VENDOR = "$(CURDIR)/vendor"
-GOPATH = "$(VENDOR):$(CURDIR)"
-
-SYSTEM_GOPATH := /usr/share/gocode/src/
-OUTPUT := $(CURDIR)/bin
-OUTPUT_JS := $(CURDIR)/build/out
-VERSION := $(shell dpkg-parsechangelog | sed -n 's/^Version: //p')
-
-DESTDIR ?= /
-BIN := $(DESTDIR)/usr/sbin
-CONF := $(DESTDIR)/$(CONFIG_PATH)
-SHARE := $(DESTDIR)/usr/share/spreed-webrtc-server
-
-BUILD_ARCH := $(shell go env GOARCH)
-BUILD_OS := $(shell go env GOOS)
-DIST := $(CURDIR)/dist_$(BUILD_ARCH)
-DIST_SRC := $(DIST)/src
-DIST_BIN := $(DIST)/bin
-
-NODEJS_BIN := $(shell which nodejs)
-ifeq ("$(NODEJS_BIN)", "")
-	NODEJS_BIN := $(shell which node)
-endif
-NODEJS_BIN_EXISTS := $(shell [ -x "$(NODEJS_BIN)" ] && echo 1 || echo 0)
-ifneq ($(NODEJS_BIN_EXISTS), 1)
-    $(error "Can't find node.js runtime, please install / check your PATH")
-endif
-
-# Tools
-AUTOPREFIXER_BROWSER_SUPPORT := "> 1%, last 2 versions, Firefox ESR, Opera 12.1"
-
-build: hook get binary assets
-
-# the pre-commit hook checks for formatted Go files
-hook:
-		if test ! \( -x .git/hooks/pre-commit -a -L .git/hooks/pre-commit \); then \
-			rm -f .git/hooks/pre-commit; \
-			ln -s ../../src/hooks/pre-commit.hook .git/hooks/pre-commit; \
-		fi
-
-gopath:
-		@echo GOPATH=$(GOPATH)
-
-get:
-		GOPATH=$(GOPATH) go get $(PKG)
-
-getupdate:
-		rm -rf vendor/*
-		GOPATH=$(GOPATH) go get $(PKG)
-
-binary:
-		GOPATH=$(GOPATH) go build -o $(OUTPUT)/$(EXENAME) -ldflags '$(LDFLAGS)' $(PKG)
-
-binaryrace:
-		GOPATH=$(GOPATH) go build -race -o $(OUTPUT)/$(EXENAME) -ldflags '$(LDFLAGS)' $(PKG)
-
-binaryall:
-		GOPATH=$(GOPATH) go build -a -o $(OUTPUT)/$(EXENAME) -ldflags '$(LDFLAGS)' $(PKG)
-
-fmt:
-		GOPATH=$(GOPATH) go fmt app/...
-
-test: TESTDEPS = $(shell GOPATH=$(GOPATH) go list -f '{{.ImportPath}}{{"\n"}}{{join .Deps "\n"}}' $(PKG) |grep $(PKG))
-test: get
-		GOPATH=$(GOPATH) go test -i $(TESTDEPS)
-		GOPATH=$(GOPATH) go test -v $(TESTDEPS)
-
-assets: styles javascript
-
-styles: SASSFLAGS = --style=expanded
-styles:
-		mkdir -p $(CURDIR)/static/css
-		mkdir -p $(CURDIR)/static/fonts
-		cp -r $(CURDIR)/src/styles/libs/font-awesome/fonts/font* $(CURDIR)/static/fonts
-		sass --compass --scss $(SASSFLAGS) \
-			$(CURDIR)/src/styles/main.scss:$(CURDIR)/static/css/main.min.css
-		autoprefixer --browsers $(AUTOPREFIXER_BROWSER_SUPPORT) $(CURDIR)/static/css/main.min.css
-		sass --compass --scss $(SASSFLAGS) \
-			$(CURDIR)/src/styles/bootstrap.scss:$(CURDIR)/static/css/bootstrap.min.css
-		sass --compass --scss $(SASSFLAGS) \
-			$(CURDIR)/src/styles/font-awesome.scss:$(CURDIR)/static/css/font-awesome.min.css
-
-styleshint:
-		find src/styles -maxdepth 1 -name "*.scss" -print0 | xargs -0 -n1 sass --compass --scss $(SASSFLAGS) -c
-
-releaseassets: RJSFLAGS = generateSourceMaps=false preserveLicenseComments=true
-releaseassets: SASSFLAGS = --style=compressed --no-cache
-releaseassets: dist_gopath assets
-
-javascript:
-		mkdir -p $(OUTPUT_JS)
-		$(NODEJS_BIN) $(CURDIR)/build/r.js \
-			-o $(CURDIR)/build/build.js \
-			dir=$(OUTPUT_JS) $(RJSFLAGS)
-
-jshint:
-		find static/ -wholename static/js/libs -prune -o -name "*.js" -print0 | xargs -0 -n1 jshint --config .jshint
-
-jsbeautify:
-		find static/ \( -path static/js/libs -o -path static/translation \) -prune -o -name "*.js" -exec js-beautify -t -o {}.new {} \; -exec mv -f {}.new {} \;
-
-release: GOPATH = "$(DIST):$(VENDOR):$(CURDIR)"
-release: LDFLAGS = -X main.version $(VERSION) -X main.defaultConfig $(CONFIG_PATH)/$(CONFIG_FILE)
-release: OUTPUT = $(DIST_BIN)
-release: dist_gopath $(DIST_BIN) binary releaseassets
-
-releasetest: GOPATH = "$(DIST):$(VENDOR):$(CURDIR)"
-releasetest: dist_gopath test
-
-install:
-		echo $(BIN)
-		echo $(SHARE)
-		install -d $(BIN) $(CONF)
-		install -d $(SHARE)/www/html
-		install -d $(SHARE)/www/static
-		install -d $(SHARE)/www/static/img
-		install -d $(SHARE)/www/static/sounds
-		install -d $(SHARE)/www/static/fonts
-		install -d $(SHARE)/www/static/translation
-		install -d $(SHARE)/www/static/css
-		install $(DIST_BIN)/* $(BIN)
-		install -m 644 server.conf.in $(CONF)/$(CONFIG_FILE)
-		install html/* $(SHARE)/www/html
-		install static/img/* $(SHARE)/www/static/img
-		install static/sounds/* $(SHARE)/www/static/sounds
-		install static/fonts/* $(SHARE)/www/static/fonts
-		install static/translation/* $(SHARE)/www/static/translation
-		install static/css/* $(SHARE)/www/static/css
-		install -D static/js/libs/require/require.js $(SHARE)/www/static/js/libs/require/require.js
-		install $(OUTPUT_JS)/*.js $(SHARE)/www/static/js
-
-clean:
-		GOPATH=$(GOPATH) go clean -i $(PKG)
-		rm -rf $(CURDIR)/pkg
-		rm -rf $(CURDIR)/static/css
-		rm -rf $(CURDIR)/static/fonts
-		rm -rf $(CURDIR)/build/out
-
-distclean: clean
-		rm -rf $(DIST)
-
-pristine: distclean
-		rm -f server.conf
-		rm -rf vendor/*
-
-$(DIST_SRC):
-		mkdir -p $@
-
-$(DIST_BIN):
-		mkdir -p $@
-
-dist_gopath: $(DIST_SRC)
-		find $(SYSTEM_GOPATH) -mindepth 1 -maxdepth 1 -type d \
-				-exec ln -sf {} $(DIST_SRC) \;
-
-tarball: PACKAGE_NAME = $(EXENAME)-$(VERSION)
-tarball: TARPATH = $(DIST)/$(PACKAGE_NAME)
-tarball: BIN = $(TARPATH)/loader
-tarball: CONF = $(TARPATH)/loader
-tarball: DOCS = $(CONF)/docs
-tarball: SHARE = $(TARPATH)/
-tarball: distclean release install
-		echo -n $(VERSION) > $(TARPATH)/version.txt
-		tar czf $(DIST)/$(PACKAGE_NAME)_$(BUILD_OS)_$(BUILD_ARCH).tar.gz -C $(DIST) $(PACKAGE_NAME)
-
-.PHONY: hook clean distclean pristine get getupdate build styles javascript release releasetest dist_gopath install gopath binary binaryrace binaryall tarball assets
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 00000000..5838c5e0
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,159 @@
+AUTOMAKE_OPTIONS = -Wno-portability
+
+PKG := app/spreed-webrtc-server
+EXENAME := spreed-webrtc-server
+CONFIG_FILE ?= spreed-webrtc-server.conf
+CONFIG_PATH ?= /etc
+
+VENDOR = "$(CURDIR)/vendor"
+GOPATH = "$(VENDOR):$(CURDIR)"
+
+SYSTEM_GOPATH := /usr/share/gocode/src/
+OUTPUT := $(CURDIR)/bin
+OUTPUT_JS := $(CURDIR)/build/out
+
+DESTDIR ?= /
+BIN := $(DESTDIR)/usr/sbin
+CONFIG_DIR := $(DESTDIR)/$(CONFIG_PATH)
+SHARE := $(DESTDIR)/usr/share/spreed-webrtc-server
+
+BUILD_ARCH := $(shell $(GO) env GOARCH)
+BUILD_OS := $(shell go env GOOS)
+DIST := $(CURDIR)/dist_$(BUILD_ARCH)
+DIST_SRC := $(DIST)/src
+DIST_BIN := $(DIST)/bin
+
+# Tools
+AUTOPREFIXER_BROWSER_SUPPORT := "> 1%, last 2 versions, Firefox ESR, Opera 12.1"
+
+all: build
+
+build: get binary assets
+
+gopath:
+	@echo GOPATH=$(GOPATH)
+
+get:
+	GOPATH=$(GOPATH) $(GO) get $(PKG)
+
+getupdate:
+	rm -rf vendor/*
+	GOPATH=$(GOPATH) $(GO) get $(PKG)
+
+binary:
+	GOPATH=$(GOPATH) $(GO) build -o $(OUTPUT)/$(EXENAME) -ldflags '$(LDFLAGS)' $(PKG)
+
+binaryrace:
+	GOPATH=$(GOPATH) $(GO) build -race -o $(OUTPUT)/$(EXENAME) -ldflags '$(LDFLAGS)' $(PKG)
+
+binaryall:
+	GOPATH=$(GOPATH) $(GO) build -a -o $(OUTPUT)/$(EXENAME) -ldflags '$(LDFLAGS)' $(PKG)
+
+fmt:
+	GOPATH=$(GOPATH) $(GO) fmt app/...
+
+test: TESTDEPS = $(shell GOPATH=$(GOPATH) $(GO) list -f '{{.ImportPath}}{{"\n"}}{{join .Deps "\n"}}' $(PKG) | $(GREP) $(PKG))
+test: get
+	GOPATH=$(GOPATH) $(GO) test -i $(TESTDEPS)
+	GOPATH=$(GOPATH) $(GO) test -v $(TESTDEPS)
+
+assets: styles javascript
+
+styles: SASSFLAGS = --style=expanded
+styles:
+	$(MKDIR_P) $(CURDIR)/static/css
+	$(MKDIR_P) $(CURDIR)/static/fonts
+	cp -r $(CURDIR)/src/styles/libs/font-awesome/fonts/font* $(CURDIR)/static/fonts
+	$(SASS) --compass --scss $(SASSFLAGS) \
+		$(CURDIR)/src/styles/main.scss:$(CURDIR)/static/css/main.min.css
+	$(AUTOPREFIXER) --browsers $(AUTOPREFIXER_BROWSER_SUPPORT) $(CURDIR)/static/css/main.min.css
+	$(SASS) --compass --scss $(SASSFLAGS) \
+		$(CURDIR)/src/styles/bootstrap.scss:$(CURDIR)/static/css/bootstrap.min.css
+	$(SASS) --compass --scss $(SASSFLAGS) \
+		$(CURDIR)/src/styles/font-awesome.scss:$(CURDIR)/static/css/font-awesome.min.css
+
+styleshint:
+	$(FIND) src/styles -maxdepth 1 -name "*.scss" -print0 | xargs -0 -n1 $(SASS) --compass --scss $(SASSFLAGS) -c
+
+releaseassets: RJSFLAGS = generateSourceMaps=false preserveLicenseComments=true
+releaseassets: SASSFLAGS = --style=compressed --no-cache
+releaseassets: dist_gopath assets
+
+javascript:
+	$(MKDIR_P) $(OUTPUT_JS)
+	$(NODEJS) $(CURDIR)/build/r.js \
+		-o $(CURDIR)/build/build.js \
+		dir=$(OUTPUT_JS) $(RJSFLAGS)
+
+jshint:
+	@if [ "$(JSHINT)" = "" ]; then echo "Command 'jshint' not found"; exit 1; fi
+	$(FIND) static/ -wholename static/js/libs -prune -o -name "*.js" -print0 | xargs -0 -n1 $(JSHINT) --config .jshint
+
+jsbeautify:
+	@if [ "$(JS_BEAUTIFY)" = "" ]; then echo "Command 'js-beautify' not found"; exit 1; fi
+	$(FIND) static/ \( -path static/js/libs -o -path static/translation \) -prune -o -name "*.js" -exec $(JS_BEAUTIFY) -t -o {}.new {} \; -exec mv -f {}.new {} \;
+
+release: GOPATH = "$(DIST):$(VENDOR):$(CURDIR)"
+release: LDFLAGS = -X main.version $(PACKAGE_VERSION) -X main.defaultConfig $(CONFIG_PATH)/$(CONFIG_FILE)
+release: OUTPUT = $(DIST_BIN)
+release: dist_gopath $(DIST_BIN) binary releaseassets
+
+releasetest: GOPATH = "$(DIST):$(VENDOR):$(CURDIR)"
+releasetest: dist_gopath test
+
+install:
+	echo $(BIN)
+	echo $(SHARE)
+	$(INSTALL) -d $(BIN) $(CONF)
+	$(INSTALL) -d $(SHARE)/www/html
+	$(INSTALL) -d $(SHARE)/www/static
+	$(INSTALL) -d $(SHARE)/www/static/img
+	$(INSTALL) -d $(SHARE)/www/static/sounds
+	$(INSTALL) -d $(SHARE)/www/static/fonts
+	$(INSTALL) -d $(SHARE)/www/static/translation
+	$(INSTALL) -d $(SHARE)/www/static/css
+	$(INSTALL) $(DIST_BIN)/* $(BIN)
+	$(INSTALL) -m 644 server.conf.in $(CONF)/$(CONFIG_FILE)
+	$(INSTALL) html/* $(SHARE)/www/html
+	$(INSTALL) static/img/* $(SHARE)/www/static/img
+	$(INSTALL) static/sounds/* $(SHARE)/www/static/sounds
+	$(INSTALL) static/fonts/* $(SHARE)/www/static/fonts
+	$(INSTALL) static/translation/* $(SHARE)/www/static/translation
+	$(INSTALL) static/css/* $(SHARE)/www/static/css
+	$(INSTALL) -D static/js/libs/require/require.js $(SHARE)/www/static/js/libs/require/require.js
+	$(INSTALL) $(OUTPUT_JS)/*.js $(SHARE)/www/static/js
+
+clean:
+	GOPATH=$(GOPATH) $(GO) clean -i $(PKG)
+	rm -rf $(CURDIR)/pkg
+	rm -rf $(CURDIR)/static/css
+	rm -rf $(CURDIR)/static/fonts
+	rm -rf $(CURDIR)/build/out
+
+distclean: clean
+	rm -rf $(DIST)
+
+pristine: distclean
+	rm -f server.conf
+	rm -rf vendor/*
+
+$(DIST_SRC):
+	$(MKDIR_P) $@
+
+$(DIST_BIN):
+	$(MKDIR_P) $@
+
+dist_gopath: $(DIST_SRC)
+	$(FIND) $(SYSTEM_GOPATH) -mindepth 1 -maxdepth 1 -type d \
+			-exec ln -sf {} $(DIST_SRC) \;
+
+tarball: TARPATH = $(DIST)/$(PACKAGE_NAME)-$(PACKAGE_VERSION)
+tarball: BIN = $(TARPATH)/loader
+tarball: CONF = $(TARPATH)/loader
+tarball: DOCS = $(CONF)/docs
+tarball: SHARE = $(TARPATH)/
+tarball: distclean release install
+		echo -n $(PACKAGE_VERSION) > $(TARPATH)/version.txt
+		tar czf $(DIST)/$(PACKAGE_NAME)-$(PACKAGE_VERSION)_$(BUILD_OS)_$(BUILD_ARCH).tar.gz -C $(DIST) $(PACKAGE_NAME)-$(PACKAGE_VERSION)
+
+.PHONY: clean distclean pristine get getupdate build styles javascript release releasetest dist_gopath install gopath binary binaryrace binaryall tarball assets
diff --git a/NEWS b/NEWS
new file mode 100644
index 00000000..38d1e43b
--- /dev/null
+++ b/NEWS
@@ -0,0 +1 @@
+See https://github.com/strukturag/spreed-webrtc for further information.
diff --git a/README b/README
new file mode 100644
index 00000000..7c9740e8
--- /dev/null
+++ b/README
@@ -0,0 +1 @@
+See README.md for further information.
diff --git a/autogen.sh b/autogen.sh
new file mode 100755
index 00000000..3d90e9b7
--- /dev/null
+++ b/autogen.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# the pre-commit hook performs various formatting checks
+if test ! \( -x .git/hooks/pre-commit -a -L .git/hooks/pre-commit \); then \
+    rm -f .git/hooks/pre-commit; \
+    ln -s ../../src/hooks/pre-commit.hook .git/hooks/pre-commit; \
+fi
+
+if [ -x "`which autoreconf 2>/dev/null`" ] ; then
+   exec autoreconf -ivf
+fi
+
+LIBTOOLIZE=libtoolize
+SYSNAME=`uname`
+if [ "x$SYSNAME" = "xDarwin" ] ; then
+  LIBTOOLIZE=glibtoolize
+fi
+aclocal -I m4 && \
+	autoheader && \
+	$LIBTOOLIZE && \
+	autoconf && \
+	automake --add-missing --force-missing --copy
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 00000000..637d72b5
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,90 @@
+dnl required version of autoconf
+AC_PREREQ([2.53])
+
+AC_INIT([spreed-webrtc],[unknown],[opensource@struktur.de],[],[https://github.com/strukturag/spreed-webrtc])
+
+# minimum required versions
+GO_VERSION_MIN=1.1.0
+NODEJS_VERSION_MIN=0.8.0
+SASS_VERSION_MIN=3.2.0
+
+AC_CONFIG_SRCDIR([src/app/spreed-webrtc-server/main.go])
+AC_CONFIG_HEADERS([config.h])
+
+dnl required version of automake
+AM_INIT_AUTOMAKE([1.10])
+
+dnl enable mainainer mode by default
+AM_MAINTAINER_MODE([enable])
+
+AC_PROG_MKDIR_P
+AC_PROG_INSTALL
+AC_PROG_GREP
+AC_PROG_SED
+
+AC_SUBST(MKDIR_P)
+AC_SUBST(INSTALL)
+AC_SUBST(GREP)
+AC_SUBST(SED)
+
+AC_PATH_PROGS([FIND],[find])
+AC_PATH_PROGS([JSHINT],[jshint])
+AC_PATH_PROGS([JS_BEAUTIFY],[js-beautify])
+
+AC_SUBST(FIND)
+AC_SUBST(JSHINT)
+AC_SUBST(JS_BEAUTIFY)
+
+AC_PATH_PROGS([GO],[go])
+if test x"${GO}" == x"" ; then
+    AC_MSG_ERROR([Please install Go before trying to build spreed-webrtc.])
+fi
+GO_VERSION=`$GO version | sed 's/^go version go//' | $SED 's/ .*//'`
+if test "$GO_VERSION" == "`echo -e "$GO_VERSION\n$GO_VERSION_MIN" | sort -V | head -n1`" ; then
+    AC_MSG_ERROR([Please install Go $GO_VERSION_MIN or newer before trying to build spreed-webrtc (found Go $GO_VERSION).])
+fi
+AC_SUBST(GO)
+
+AC_PATH_PROGS([NODEJS],[nodejs node])
+if test x"${NODEJS}" == x"" ; then
+    AC_MSG_ERROR([Please install node.js before trying to build spreed-webrtc.])
+fi
+NODEJS_VERSION=`$NODEJS --version | $SED 's/^v//'`
+if test "$NODEJS_VERSION" == "`echo -e "$NODEJS_VERSION\n$NODEJS_VERSION_MIN" | sort -V | head -n1`" ; then
+    AC_MSG_ERROR([Please install node.js $NODEJS_VERSION_MIN or newer before trying to build spreed-webrtc (found node.js $NODEJS_VERSION).])
+fi
+AC_SUBST(NODEJS)
+
+AC_PATH_PROGS([SASS],[sass])
+if test x"${SASS}" == x"" ; then
+    AC_MSG_ERROR([Please install sass before trying to build spreed-webrtc.])
+fi
+SASS_VERSION=`$SASS --version | $SED 's/^Sass //' | $SED 's/ .*//'`
+if test "$SASS_VERSION" == "`echo -e "$SASS_VERSION\n$SASS_VERSION_MIN" | sort -V | head -n1`" ; then
+    AC_MSG_ERROR([Please install sass $SASS_VERSION_MIN or newer before trying to build spreed-webrtc (found sass $SASS_VERSION).])
+fi
+AC_SUBST(SASS)
+
+AC_PATH_PROGS([COMPASS],[compass])
+if test x"${COMPASS}" == x"" ; then
+    AC_MSG_ERROR([Please install compass before trying to build spreed-webrtc.])
+fi
+AC_SUBST(COMPASS)
+
+AC_PATH_PROGS([AUTOPREFIXER],[autoprefixer])
+if test x"${AUTOPREFIXER}" == x"" ; then
+    AC_MSG_ERROR([Please install autoprefixer before trying to build spreed-webrtc.])
+fi
+AC_SUBST(AUTOPREFIXER)
+
+VERSION=`dpkg-parsechangelog | sed -n 's/^Version: //p'`
+PACKAGE_VERSION="$VERSION"
+PACKAGE_STRING="$PACKAGE_NAME $PACKAGE_VERSION"
+AC_DEFINE_UNQUOTED(VERSION, ["$VERSION"], [Version number of package])
+AC_DEFINE_UNQUOTED(PACKAGE_VERSION, ["$PACKAGE_VERSION"], [Define to the version of this package.])
+AC_DEFINE_UNQUOTED(PACKAGE_STRING, ["$PACKAGE_STRING"], [Define to the full name and version of this package.])
+
+AC_CONFIG_FILES([
+    Makefile
+])
+AC_OUTPUT

From 05ffd22103d7ce7a87fef23e629fbb5a3e522eac Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Fri, 23 May 2014 17:04:49 +0200
Subject: [PATCH 2/5] Added copyright header.

---
 Makefile.am  | 20 ++++++++++++++++++++
 configure.ac | 20 ++++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 5838c5e0..097677ec 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,3 +1,23 @@
+#
+# Spreed WebRTC.
+# Copyright (C) 2013-2014 struktur AG
+#
+# This file is part of Spreed WebRTC.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 AUTOMAKE_OPTIONS = -Wno-portability
 
 PKG := app/spreed-webrtc-server
diff --git a/configure.ac b/configure.ac
index 637d72b5..fd4319d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,3 +1,23 @@
+#
+# Spreed WebRTC.
+# Copyright (C) 2013-2014 struktur AG
+#
+# This file is part of Spreed WebRTC.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 dnl required version of autoconf
 AC_PREREQ([2.53])
 

From a1b0c8de1e91112aff987cbee56b249c32eea72f Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Fri, 23 May 2014 17:13:20 +0200
Subject: [PATCH 3/5] Added information about autogen.sh and configure.

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index dcbcd26e..8bf95ed4 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,12 @@ The latest version of Spreed WebRTC can be found on GitHub:
 
   Go, Sass and NodeJS need to be in your $PATH.
 
+  If you got spreed-webrtc from the git repository, you will first need
+  to run the included `autogen.sh` script to generate the `configure`
+  script.
+
   ```bash
+  $ ./configure
   $ make
   ```
 

From 570e3848a49b63b5c8f0db220b72500a638b01c3 Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Fri, 23 May 2014 17:13:57 +0200
Subject: [PATCH 4/5] Updated check for go1.1

---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index fd4319d4..2c21aced 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,7 +24,7 @@ AC_PREREQ([2.53])
 AC_INIT([spreed-webrtc],[unknown],[opensource@struktur.de],[],[https://github.com/strukturag/spreed-webrtc])
 
 # minimum required versions
-GO_VERSION_MIN=1.1.0
+GO_VERSION_MIN=1.1
 NODEJS_VERSION_MIN=0.8.0
 SASS_VERSION_MIN=3.2.0
 

From b26c5805c6cf5e627cf206b92645eae41a9b718c Mon Sep 17 00:00:00 2001
From: Joachim Bauch <bauch@struktur.de>
Date: Fri, 23 May 2014 17:26:30 +0200
Subject: [PATCH 5/5] Need to check one version before required.

---
 configure.ac | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index 2c21aced..33038727 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,10 +23,10 @@ AC_PREREQ([2.53])
 
 AC_INIT([spreed-webrtc],[unknown],[opensource@struktur.de],[],[https://github.com/strukturag/spreed-webrtc])
 
-# minimum required versions
-GO_VERSION_MIN=1.1
-NODEJS_VERSION_MIN=0.8.0
-SASS_VERSION_MIN=3.2.0
+# minimum required versions (actually one version before)
+GO_VERSION_MIN=1.0.9        # actually 1.1
+NODEJS_VERSION_MIN=0.7.9    # actually 0.8.0
+SASS_VERSION_MIN=3.1.9      # actually 3.2.0
 
 AC_CONFIG_SRCDIR([src/app/spreed-webrtc-server/main.go])
 AC_CONFIG_HEADERS([config.h])