diff --git a/.appveyor/install.bat b/.appveyor/install.bat
index 590d1e0f5..cf2e8e021 100644
--- a/.appveyor/install.bat
+++ b/.appveyor/install.bat
@@ -50,8 +50,8 @@ GOTO:EOF
     git submodule init
     git submodule update
     cd %SRC_DIR%\Telegram
-    call gyp\refresh.bat --api-id 17349 --api-hash 344583e45741c457fe1862106095a5eb
-GOTO:EOF
+    call gyp\refresh.bat --api-id 17349 --api-hash 344583e45741c457fe1862106095a5eb --ci-build
+ GOTO:EOF
 
 :configureBuild
     call:logInfo "Configuring build"
diff --git a/.travis/build.sh b/.travis/build.sh
index 4b6d05ff8..e9665847b 100755
--- a/.travis/build.sh
+++ b/.travis/build.sh
@@ -11,21 +11,21 @@ CACHE="$HOME/travisCacheDir"
 
 QT_WAS_BUILT="0"
 
-QT_VERSION=5.6.2
+QT_VERSION=5.12.5
 
 XKB_PATH="$BUILD/libxkbcommon"
 XKB_CACHE_VERSION="3"
 
 QT_PATH="$BUILD/qt"
 QT_CACHE_VERSION="4"
-QT_PATCH="$UPSTREAM/Telegram/Patches/qtbase_${QT_VERSION//\./_}.diff"
+QT_PATCH="$EXTERNAL/patches/qtbase_${QT_VERSION//\./_}.diff"
 
 BREAKPAD_PATH="$BUILD/breakpad"
 BREAKPAD_CACHE_VERSION="3"
 
 GYP_PATH="$BUILD/gyp"
 GYP_CACHE_VERSION="3"
-GYP_PATCH="$UPSTREAM/Telegram/Patches/gyp.diff"
+GYP_PATCH="$EXTERNAL/patches/gyp.diff"
 
 RANGE_PATH="$BUILD/range-v3"
 RANGE_CACHE_VERSION="3"
@@ -64,6 +64,8 @@ build() {
 
   BUILD_VERSION_DATA=$(echo $BUILD_VERSION | cut -d'-' -f 1)
 
+  getPatches
+
   # libxkbcommon
   getXkbCommon
 
@@ -127,6 +129,11 @@ build() {
   travisEndFold
 }
 
+getPatches() {
+  cd "$EXTERNAL"
+  git clone --depth 1 https://github.com/desktop-app/patches
+}
+
 getXkbCommon() {
   travisStartFold "Getting xkbcommon"
 
@@ -580,8 +587,8 @@ buildCustomQt() {
   QT_WAS_BUILT="1"
   info_msg "Downloading and building patched qt"
 
-  if [ -d "$EXTERNAL/qt${QT_VERSION}" ]; then
-    sudo rm -rf "$EXTERNAL/qt${QT_VERSION}"
+  if [ -d "$EXTERNAL/qt_${QT_VERSION}" ]; then
+    sudo rm -rf "$EXTERNAL/qt_${QT_VERSION}"
   fi
   cd $QT_PATH
   sudo rm -rf *
@@ -592,8 +599,8 @@ buildCustomQt() {
   cd "$EXTERNAL/qt${QT_VERSION}"
   perl init-repository --branch --module-subset=qtbase,qtimageformats
   git checkout v${QT_VERSION}
-  cd qtbase && git checkout v${QT_VERSION} && cd ..
-  cd qtimageformats && git checkout v${QT_VERSION} && cd ..
+  git submodule update qtbase
+  git submodule update qtimageformats
 
   cd "$EXTERNAL/qt${QT_VERSION}/qtbase"
   git apply "$QT_PATCH"
@@ -606,10 +613,10 @@ buildCustomQt() {
   cd ../../../..
 
   ./configure -prefix $QT_PATH -release -opensource -confirm-license -qt-zlib \
-              -qt-libpng -qt-libjpeg -qt-freetype -qt-harfbuzz -qt-pcre -qt-xcb \
-              -qt-xkbcommon-x11 -no-opengl -no-gtkstyle -static \
+              -qt-libpng -qt-libjpeg -qt-harfbuzz -qt-pcre -qt-xcb \
+              -system-freetype -fontconfig -no-opengl -no-gtk -static \
               -nomake examples -nomake tests -no-mirclient \
-              -dbus-runtime -no-gstreamer -no-mtdev # <- Not sure about these
+              -dbus-runtime -no-mtdev # <- Not sure about these
   make $MAKE_ARGS
   sudo make install
 }
@@ -664,7 +671,7 @@ buildGYP() {
   git clone https://chromium.googlesource.com/external/gyp
 
   cd "$EXTERNAL/gyp"
-  git checkout 702ac58e47
+  git checkout 9f2a7bb1
   git apply "$GYP_PATCH"
   cp -r * "$GYP_PATH/"
 }
@@ -676,6 +683,7 @@ buildTelegram() {
   "$GYP_PATH/gyp" \
       -Dapi_id=17349 \
       -Dapi_hash=344583e45741c457fe1862106095a5eb \
+      -Dspecial_build_target= \
       -Dbuild_defines=${GYP_DEFINES:1} \
       -Dlinux_path_xkbcommon=$XKB_PATH \
       -Dlinux_path_va=$VA_PATH \
diff --git a/Telegram/Resources/uwp/AppX/AppxManifest.xml b/Telegram/Resources/uwp/AppX/AppxManifest.xml
index 05919fb20..91eed0956 100644
--- a/Telegram/Resources/uwp/AppX/AppxManifest.xml
+++ b/Telegram/Resources/uwp/AppX/AppxManifest.xml
@@ -9,7 +9,7 @@
   <Identity Name="TelegramMessengerLLP.TelegramDesktop"
     ProcessorArchitecture="ARCHITECTURE"
     Publisher="CN=536BC709-8EE1-4478-AF22-F0F0F26FF64A"
-    Version="1.9.0.0" />
+    Version="1.9.1.0" />
   <Properties>
     <DisplayName>Telegram Desktop</DisplayName>
     <PublisherDisplayName>Telegram FZ-LLC</PublisherDisplayName>
diff --git a/Telegram/SourceFiles/chat_helpers/message_field.cpp b/Telegram/SourceFiles/chat_helpers/message_field.cpp
index 8895b0ee4..f6ae4593f 100644
--- a/Telegram/SourceFiles/chat_helpers/message_field.cpp
+++ b/Telegram/SourceFiles/chat_helpers/message_field.cpp
@@ -279,9 +279,8 @@ void InitSpellchecker(
 		not_null<Ui::InputField*> field) {
 #ifndef TDESKTOP_DISABLE_SPELLCHECK
 	const auto s = Ui::CreateChild<Spellchecker::SpellingHighlighter>(
-		field->rawTextEdit().get(),
-		session->settings().spellcheckerEnabledValue(),
-		field->documentContentsChanges());
+		field.get(),
+		session->settings().spellcheckerEnabledValue());
 	Spellchecker::SetPhrases({ {
 		{ &ph::lng_spellchecker_add, tr::lng_spellchecker_add() },
 		{ &ph::lng_spellchecker_remove, tr::lng_spellchecker_remove() },
diff --git a/Telegram/SourceFiles/core/version.h b/Telegram/SourceFiles/core/version.h
index bac5c7f8c..fa5be2005 100644
--- a/Telegram/SourceFiles/core/version.h
+++ b/Telegram/SourceFiles/core/version.h
@@ -15,8 +15,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #define TDESKTOP_ALPHA_VERSION (0ULL)
 #endif // TDESKTOP_OFFICIAL_TARGET
 
-constexpr auto AppVersion = 1009000;
-constexpr auto AppVersionStr = "1.9";
+constexpr auto AppVersion = 1009001;
+constexpr auto AppVersionStr = "1.9.1";
 constexpr auto AppBetaVersion = true;
 constexpr auto AppAlphaVersion = TDESKTOP_ALPHA_VERSION;
 constexpr auto AppKotatoVersion = 1001000;
diff --git a/Telegram/SourceFiles/settings/settings_advanced.cpp b/Telegram/SourceFiles/settings/settings_advanced.cpp
index 9605044b5..0a41abef7 100644
--- a/Telegram/SourceFiles/settings/settings_advanced.cpp
+++ b/Telegram/SourceFiles/settings/settings_advanced.cpp
@@ -244,6 +244,9 @@ void SetupUpdate(not_null<Ui::VerticalLayout*> container) {
 }
 
 bool HasSystemSpellchecker() {
+#ifdef TDESKTOP_DISABLE_SPELLCHECK
+	return false;
+#endif // TDESKTOP_DISABLE_SPELLCHECK
 	return (Platform::IsWindows() && Platform::IsWindows8OrGreater())
 		|| Platform::IsMac();
 }
diff --git a/Telegram/build/build.bat b/Telegram/build/build.bat
index 3e8e37cfc..88b5c4e92 100644
--- a/Telegram/build/build.bat
+++ b/Telegram/build/build.bat
@@ -57,7 +57,7 @@ set "DeployPath=%ReleasePath%\deploy\%AppVersionStrMajor%\%AppVersionStrFull%"
 set "SignPath=%HomePath%\..\..\DesktopPrivate\Sign.bat"
 set "BinaryName=Telegram"
 set "DropboxSymbolsPath=Y:\Telegram\symbols"
-set "FinalReleasePath=Z:\Telegram\backup"
+set "FinalReleasePath=Z:\Projects\backup\tdesktop"
 
 if not exist %DropboxSymbolsPath% (
   echo Dropbox path %DropboxSymbolsPath% not found!
diff --git a/Telegram/build/build.sh b/Telegram/build/build.sh
index 98a9568ac..325d473b2 100755
--- a/Telegram/build/build.sh
+++ b/Telegram/build/build.sh
@@ -118,8 +118,8 @@ if [ "$BuildTarget" == "linux" ] || [ "$BuildTarget" == "linux32" ]; then
     Error "Dropbox path not found!"
   fi
 
-  BackupPath="/media/psf/backup/$AppVersionStrMajor/$AppVersionStrFull/t$BuildTarget"
-  if [ ! -d "/media/psf/backup" ]; then
+  BackupPath="/media/psf/backup/tdesktop/$AppVersionStrMajor/$AppVersionStrFull/t$BuildTarget"
+  if [ ! -d "/media/psf/backup/tdesktop" ]; then
     Error "Backup folder not found!"
   fi
 
@@ -248,8 +248,8 @@ if [ "$BuildTarget" == "mac" ] || [ "$BuildTarget" == "osx" ] || [ "$BuildTarget
     Error "Dropbox path not found!"
   fi
 
-  BackupPath="$HOME/Telegram/backup/$AppVersionStrMajor/$AppVersionStrFull"
-  if [ ! -d "$HOME/Telegram/backup" ]; then
+  BackupPath="$HOME/Projects/backup/tdesktop/$AppVersionStrMajor/$AppVersionStrFull"
+  if [ ! -d "$HOME/Projects/backup/tdesktop" ]; then
     Error "Backup path not found!"
   fi
 
diff --git a/Telegram/build/deploy.sh b/Telegram/build/deploy.sh
index 87879bc1a..e3e9fdf5b 100755
--- a/Telegram/build/deploy.sh
+++ b/Telegram/build/deploy.sh
@@ -79,9 +79,9 @@ else
   fi
 fi
 if [ "$BuildTarget" == "mac" ]; then
-  BackupPath="$HOME/Telegram/backup"
+  BackupPath="$HOME/Projects/backup/tdesktop"
 elif [ "$BuildTarget" == "linux" ]; then
-  BackupPath="/media/psf/Home/Telegram/backup"
+  BackupPath="/media/psf/Home/Projects/backup/tdesktop"
 else
   Error "Can't deploy here"
 fi
diff --git a/Telegram/build/release.py b/Telegram/build/release.py
index f1523476b..dcccafccb 100644
--- a/Telegram/build/release.py
+++ b/Telegram/build/release.py
@@ -1,6 +1,6 @@
 import os, sys, requests, pprint, re, json
 from uritemplate import URITemplate, expand
-from subprocess import call
+from subprocess import call, Popen, PIPE
 from os.path import expanduser
 
 changelog_file = '../../changelog.txt'
@@ -53,6 +53,59 @@ def checkResponseCode(result, right_code):
     print('Wrong result code: ' + str(result.status_code) + ', should be ' + str(right_code))
     sys.exit(1)
 
+def getOutput(command):
+  p = Popen(command.split(), stdout=PIPE)
+  output, err = p.communicate()
+  if err != None or p.returncode != 0:
+    print('ERROR!')
+    print(err)
+    print(p.returncode)
+    sys.exit(1)
+  return output.decode('utf-8')
+
+def prepareSources():
+  workpath = os.getcwd()
+  os.chdir('../..')
+  rootpath = os.getcwd()
+  finalpath = rootpath + '/out/Release/sources.tar'
+  if os.path.exists(finalpath):
+    os.remove(finalpath)
+  if os.path.exists(finalpath + '.gz'):
+    os.remove(finalpath + '.gz')
+  tmppath = rootpath + '/out/Release/tmp.tar'
+  print('Preparing source tarball...')
+  if (call(('git archive --prefix=tdesktop-' + version + '-full/ -o ' + finalpath + ' v' + version).split()) != 0):
+    os.remove(finalpath)
+    sys.exit(1)
+  lines = getOutput('git submodule foreach').split('\n')
+  for line in lines:
+    if len(line) == 0:
+      continue
+    match = re.match(r"^Entering '([^']+)'$", line)
+    if not match:
+      print('Bad line: ' + line)
+      sys.exit(1)
+    path = match.group(1)
+    revision = getOutput('git rev-parse v' + version + ':' + path).split('\n')[0]
+    print('Adding submodule ' + path + '...')
+    os.chdir(path)
+    if (call(('git archive --prefix=tdesktop-' + version + '-full/' + path + '/ ' + revision + ' -o ' + tmppath).split()) != 0):
+      os.remove(finalpath)
+      os.remove(tmppath)
+      sys.exit(1)
+    if (call(('gtar --concatenate --file=' + finalpath + ' ' + tmppath).split()) != 0):
+      os.remove(finalpath)
+      os.remove(tmppath)
+      sys.exit(1)
+    os.remove(tmppath)
+    os.chdir(rootpath)
+  print('Compressing...')
+  if (call(('gzip -9 ' + finalpath).split()) != 0):
+    os.remove(finalpath)
+    sys.exit(1)
+  os.chdir(workpath)
+  return finalpath + '.gz'
+
 pp = pprint.PrettyPrinter(indent=2)
 url = 'https://api.github.com/'
 
@@ -152,6 +205,12 @@ files.append({
   'mime': 'application/octet-stream',
   'label': 'Linux 32 bit: Binary',
 })
+files.append({
+  'local': 'sources',
+  'remote': 'tdesktop-' + version + '-full.tar.gz',
+  'mime': 'application/x-gzip',
+  'label': 'Source code (tar.gz, full)',
+})
 
 r = requests.get(url + 'repos/telegramdesktop/tdesktop/releases/tags/v' + version)
 if r.status_code == 404:
@@ -182,8 +241,8 @@ if r.status_code == 404:
     sys.exit(1)
 
   changelog = changelog.strip()
-  print('Changelog: ');
-  print(changelog);
+  print('Changelog: ')
+  print(changelog)
 
   r = requests.post(url + 'repos/telegramdesktop/tdesktop/releases', headers={'Authorization': 'token ' + access_token}, data=json.dumps({
     'tag_name': 'v' + version,
@@ -195,7 +254,7 @@ if r.status_code == 404:
   checkResponseCode(r, 201)
 
 tagname = 'v' + version
-call("git fetch origin".split());
+call("git fetch origin".split())
 if stable == 1:
   call("git push launchpad {}:master".format(tagname).split())
 else:
@@ -203,7 +262,7 @@ else:
 call("git push --tags launchpad".split())
 
 r = requests.get(url + 'repos/telegramdesktop/tdesktop/releases/tags/v' + version)
-checkResponseCode(r, 200);
+checkResponseCode(r, 200)
 
 release_data = r.json()
 #pp.pprint(release_data)
@@ -211,8 +270,8 @@ release_data = r.json()
 release_id = release_data['id']
 print('Release ID: ' + str(release_id))
 
-r = requests.get(url + 'repos/telegramdesktop/tdesktop/releases/' + str(release_id) + '/assets');
-checkResponseCode(r, 200);
+r = requests.get(url + 'repos/telegramdesktop/tdesktop/releases/' + str(release_id) + '/assets')
+checkResponseCode(r, 200)
 
 assets = release_data['assets']
 for asset in assets:
@@ -230,12 +289,15 @@ for asset in assets:
 for file in files:
   if 'already' in file:
     continue
-  file_path = local_folder + file['backup_folder'] + '/' + file['local']
+  if file['local'] == 'sources':
+    file_path = prepareSources()
+  else:
+    file_path = local_folder + file['backup_folder'] + '/' + file['local']
   if not os.path.isfile(file_path):
     print('Warning: file not found ' + file['local'])
     continue
 
-  upload_url = expand(release_data['upload_url'], {'name': file['remote'], 'label': file['label']}) + '&access_token=' + access_token;
+  upload_url = expand(release_data['upload_url'], {'name': file['remote'], 'label': file['label']}) + '&access_token=' + access_token
 
   content = upload_in_chunks(file_path, 10)
 
diff --git a/Telegram/build/version b/Telegram/build/version
index b3f93e6c0..d4f9f3413 100644
--- a/Telegram/build/version
+++ b/Telegram/build/version
@@ -1,6 +1,6 @@
-AppVersion         1009000
+AppVersion         1009001
 AppVersionStrMajor 1.9
-AppVersionStrSmall 1.9
-AppVersionStr      1.9.0
+AppVersionStrSmall 1.9.1
+AppVersionStr      1.9.1
 BetaChannel        1
 AlphaVersion       0
diff --git a/Telegram/gyp/generate.py b/Telegram/gyp/generate.py
index 083b1325c..5b8ef8688 100644
--- a/Telegram/gyp/generate.py
+++ b/Telegram/gyp/generate.py
@@ -23,6 +23,7 @@ apiId = ''
 apiHash = ''
 nextApiId = False
 nextApiHash = False
+ciBuild = False
 for arg in sys.argv:
     if nextApiId:
         apiId = re.sub(r'[^\d]', '', arg)
@@ -33,6 +34,8 @@ for arg in sys.argv:
     else:
         nextApiId = (arg == '--api-id')
         nextApiHash = (arg == '--api-hash')
+        if arg == '--ci-build':
+            ciBuild = True
 
 officialTarget = ''
 officialTargetFile = scriptPath + '/../build/target'
@@ -86,6 +89,9 @@ gypArguments.append('-Dapi_id=' + apiId)
 gypArguments.append('-Dapi_hash=' + apiHash)
 gypArguments.append('-Dlottie_use_cache=1')
 gypArguments.append('-Dspecial_build_target=' + officialTarget)
+if ciBuild:
+    gypArguments.append('-Dci_build=1')
+
 if 'TDESKTOP_BUILD_DEFINES' in os.environ:
     buildDefines = os.environ['TDESKTOP_BUILD_DEFINES']
     gypArguments.append('-Dbuild_defines=' + buildDefines)
diff --git a/Telegram/lib_ui b/Telegram/lib_ui
index b12d0dbe9..d76b213fc 160000
--- a/Telegram/lib_ui
+++ b/Telegram/lib_ui
@@ -1 +1 @@
-Subproject commit b12d0dbe9a388d08dc97ac8b164b52b8b6e33ea1
+Subproject commit d76b213fc41943ecc1a469b6cd7f8a60318a18be
diff --git a/changelog.txt b/changelog.txt
index 0f0834000..5241eca18 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,7 @@
+1.9.1 beta (06.11.19)
+
+- Bug fixes and other minor improvements.
+
 1.9 beta (05.11.19)
 
 - System spellchecker on Windows 8+ and macOS 10.12+.
diff --git a/docs/building-cmake.md b/docs/building-cmake.md
index d4a228e5a..8b953035b 100644
--- a/docs/building-cmake.md
+++ b/docs/building-cmake.md
@@ -13,7 +13,7 @@ You will require **api_id** and **api_hash** to access the Telegram API servers.
 You will need GCC 8.1 installed. To install them and all the required dependencies run
 
     sudo apt-get install software-properties-common -y && \
-    sudo apt-get install git libexif-dev liblzma-dev libz-dev libssl-dev libappindicator-dev libicu-dev libdee-dev libdrm-dev dh-autoreconf autoconf automake build-essential libass-dev libfreetype6-dev libgpac-dev libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-image0-dev libxcb-shm0-dev libxcb-xfixes0-dev libxcb-keysyms1-dev libxcb-icccm4-dev libxcb-render-util0-dev libxcb-util0-dev libxrender-dev libasound-dev libpulse-dev libxcb-sync0-dev libxcb-randr0-dev libx11-xcb-dev libffi-dev libncurses5-dev pkg-config texi2html zlib1g-dev yasm xutils-dev bison python-xcbgen chrpath gperf -y && \
+    sudo apt-get install git libexif-dev liblzma-dev libz-dev libssl-dev libappindicator-dev libicu-dev libdee-dev libdrm-dev dh-autoreconf autoconf automake build-essential libass-dev libfreetype6-dev libgpac-dev libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-image0-dev libxcb-shm0-dev libxcb-xfixes0-dev libxcb-keysyms1-dev libxcb-icccm4-dev libxcb-render-util0-dev libxcb-util0-dev libxcb-xkb-dev libxrender-dev libasound-dev libpulse-dev libxcb-sync0-dev libxcb-randr0-dev libx11-xcb-dev libffi-dev libncurses5-dev pkg-config texi2html zlib1g-dev yasm xutils-dev bison python-xcbgen chrpath gperf -y && \
     sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \
     sudo apt-get update && \
     sudo apt-get install gcc-8 g++-8 -y && \
@@ -218,7 +218,7 @@ Go to ***BuildPath*** and run
     git clone https://github.com/xkbcommon/libxkbcommon.git
     cd libxkbcommon
     git checkout xkbcommon-0.8.4
-    ./autogen.sh --disable-x11
+    ./autogen.sh
     make $MAKE_THREADS_CNT
     sudo make install
     cd ..
@@ -259,7 +259,11 @@ Go to ***BuildPath*** and run
     ./configure
     make $MAKE_THREADS_CNT
     sudo make install
-    cd src/tools
+    cd src
+    rm -r testing
+    git clone https://github.com/google/googletest testing
+    cd tools
+    sed -i 's/minidump_upload.m/minidump_upload.cc/' linux/tools_linux.gypi
     ../../../gyp/gyp  --depth=. --generator-output=.. -Goutput_dir=../out tools.gyp --format=cmake
     cd ../../out/Default
     cmake .
diff --git a/docs/building-msvc.md b/docs/building-msvc.md
index ad4e2b082..215c35901 100644
--- a/docs/building-msvc.md
+++ b/docs/building-msvc.md
@@ -32,7 +32,7 @@ Open **x86 Native Tools Command Prompt for VS 2019.bat**, go to ***BuildPath***
     cd ThirdParty
     git clone https://github.com/desktop-app/patches.git
     cd patches
-    git checkout b0ec5df4
+    git checkout b0ec5df
     cd ../
     git clone https://chromium.googlesource.com/external/gyp
     cd gyp
@@ -95,7 +95,6 @@ Open **x86 Native Tools Command Prompt for VS 2019.bat**, go to ***BuildPath***
 
     git clone https://github.com/desktop-app/zlib.git
     cd zlib
-    git checkout tdesktop
     cd contrib\vstudio\vc14
     msbuild zlibstat.vcxproj /property:Configuration=Debug
     msbuild zlibstat.vcxproj /property:Configuration=ReleaseWithoutAsm
diff --git a/docs/building-xcode.md b/docs/building-xcode.md
index 7c66e18d6..8679de944 100644
--- a/docs/building-xcode.md
+++ b/docs/building-xcode.md
@@ -22,7 +22,7 @@ Go to ***BuildPath*** and run
     MACOSX_DEPLOYMENT_TARGET=10.12
 
     ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
-    brew install automake cmake fdk-aac git lame libass libtool libvorbis libvpx ninja opus sdl shtool texi2html theora wget x264 xvid yasm pkg-config
+    brew install automake cmake fdk-aac git lame libass libtool libvorbis libvpx ninja opus sdl shtool texi2html theora wget x264 xvid yasm pkg-config gnu-tar
 
     sudo xcode-select -s /Applications/Xcode.app/Contents/Developer