# Maintainer (Arch:firefox): Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
# Contributor (Arch:firefox): Ionut Biru <ibiru@archlinux.org>
# Contributor (Arch:firefox): Jakub Schmidtke <sjakub@gmail.com>

# Contributor (ConnochaetOS): Henry Jensen <hjensen@connochaetos.org>

# Maintainer: Andreas Grapentin <andreas@grapentin.org>
# Maintainer: Luke Shumaker <lukeshu@parabola.nu>
# Contributor: André Silva <emulatorman@hyperbola.info>
# Contributor: Márcio Silva <coadde@hyperbola.info>
# Contributor: fauno <fauno@kiwwwi.com.ar>
# Contributor: vando <facundo@esdebian.org>
# Contributor: Figue <ffigue at gmail>
# Contributor: taro-k <taro-k@movasense_com>
# Contributor: Michał Masłowski <mtjm@mtjm.eu>
# Contributor: Luke R. <g4jc@openmailbox.org>
# Contributor: Isaac David <isacdaavid@isacdaavid.info>
# Contributor: bill-auger <bill-auger@programmer.net>
# Contributor: evr <evanroman at gmail>
# Contributor: Muhammad 'MJ' Jassim <UnbreakableMJ@gmail.com>

# Rational for inclusion in [libre]:
#  - Modify the addons pages to use GNU IceCat plugins sources, rather
#    than addons.mozilla.org, which hosts non-free addons.
#  - Disable EME, which is implemented via the non-free libWideVine
#    CDM.
#
# The above changes cause us to run afoul of the Firefox trademark
# policy[1], so making those changes also requires us to:
#  - Rebrand to Iceweasel
#
# While we're at it, while not strictly nescessary for FSDG
# compliance:
#  - Remove Google API keys and usage
#  - Disable Mozilla telemetry and crash reporting (good manners
#    because of all of the other patching we're doing
#
# [1]: https://www.mozilla.org/en-US/foundation/trademarks/policy/

pkgname=iceweasel
replaces=('firefox')
epoch=1
pkgver=61.0.2
pkgrel=1
pkgrel+=.parabola1
pkgdesc="Libre standalone web browser based on Mozilla Firefox"
arch=(x86_64)
arch+=(i686 armv7h)
license=(MPL GPL LGPL)
url="https://wiki.parabola.nu/$pkgname"
depends=(gtk3 mozilla-common libxt startup-notification mime-types dbus-glib ffmpeg
         nss hunspell-en_US sqlite ttf-font libpulse libvpx icu)
makedepends=(unzip zip diffutils python2 yasm mesa imake gconf inetutils xorg-server-xvfb
             autoconf2.13 rust mercurial clang llvm jack gtk2 python)
optdepends=('networkmanager: Location detection via available WiFi networks'
            'libnotify: Notification integration'
            'pulseaudio: Audio support'
            'speech-dispatcher: Text-to-Speech')
options=(!emptydirs !makeflags !strip)
_repo=https://hg.mozilla.org/mozilla-unified
source=("hg+$_repo#tag=FIREFOX_${pkgver//./_}_RELEASE"
        $pkgname.desktop)
sha256sums=('SKIP'
            'ed350ef2f528b999a621f7080fa80948be6b351e67ce32529fb32bcf47bb21fa'
            'dabd5a0b8023e8ca13f6ae5fcb9e6c29531fc952bc781b4aa25c8a598187768e'
            'SKIP'
            'b695926b8a1f9560f0e11e0bad2ef42df6152d4f16f95af1027bc12c487c1ede')

# Branding
_brandingver=$(cut -d. -f1,2<<<"$pkgver")
_brandingrel=1
makedepends+=(mozilla-searchplugins quilt libxslt imagemagick)
source+=(https://repo.parabola.nu/other/iceweasel/${pkgname}_${_brandingver}-${_brandingrel}.branding.tar.xz{,.sig}
         libre.patch)
validpgpkeys+=('BFA8008A8265677063B11BF47171986E4B745536') # Andreas Grapentin

prepare() {
  cd mozilla-unified

  cat >.mozconfig <<END
ac_add_options --enable-application=browser

ac_add_options --prefix=/usr
ac_add_options --enable-release
ac_add_options --enable-linker=gold
ac_add_options --enable-hardening
ac_add_options --enable-optimize
ac_add_options --enable-rust-simd

# Branding
ac_add_options --disable-official-branding
ac_add_options --with-branding=browser/branding/iceweasel
ac_add_options --enable-update-channel=release
ac_add_options --with-distribution-id=nu.parabola

# System libraries
ac_add_options --with-system-zlib
ac_add_options --with-system-bz2
ac_add_options --with-system-icu
ac_add_options --with-system-jpeg
ac_add_options --with-system-libvpx
ac_add_options --with-system-nspr
ac_add_options --with-system-nss
ac_add_options --enable-system-sqlite
ac_add_options --enable-system-ffi

# Features
ac_add_options --enable-alsa
ac_add_options --enable-jack
ac_add_options --enable-startup-notification
ac_add_options --disable-crashreporter
ac_add_options --disable-updater
ac_add_options --disable-eme
END

  if [[ $CARCH = arm* ]]; then
    sed -i '/--enable-linker=gold/d' .mozconfig
    cat >> .mozconfig <<- END
	ac_add_options --enable-optimize="-g -O2 -fno-schedule-insns"
	END
  fi # end [[ $CARCH = arm* ]]

  ## Rebranding
  local brandingdir="$srcdir/$pkgname-$_brandingver"
  sed -i '/lockPref("browser.startup.homepage_override.mstone"/d' \
      "$brandingdir/branding/firefox-branding.js"
  # file dump
  rm -rf -- browser/branding/$pkgname
  cp -aT -- $brandingdir/branding browser/branding/$pkgname
  # patching
  rm -rf .pc
  export QUILT_PATCHES=$brandingdir/patches
  export QUILT_REFRESH_ARGS='-p ab --no-timestamps --no-index'
  export QUILT_DIFF_ARGS='--no-timestamps'
  quilt push -av
  # Put "Start Page" branding images in the source code
  install -m644 -t browser/base/content/abouthome -- \
    "$brandingdir/branding"/{drm-free,gnu_headshadow,parabola-banner}.png
  install -m644 -t browser/extensions/onboarding/content/img -- \
     "$brandingdir/branding/watermark.svg"
  # produce icons
  for i in 16 22 24 32 48 64 128 192 256 384; do
    rsvg-convert -w $i -h $i "$brandingdir/branding/${pkgname}_icon.svg" \
      -o "browser/branding/iceweasel/default$i.png"
  done
  # Patch and remove anything that's left
  patch -Np1 -i "$srcdir/libre.patch"
  sed -i 's/Adobe Flash/SWF Player/g' -- \
    browser/base/content/pageinfo/permissions.js \
    browser/base/content/browser-plugins.js
  sed -e '/"displayName": "Flash"/     s/Flash/SWF Player/'     \
      -e '/"displayName": "Shockwave"/ s/Shockwave/DCR Player/' \
      -e '/"displayName": "QuickTime"/ s/QuickTime/MOV Player/' \
      -e '/installLinux/ s/true/false/' \
      -i -- browser/base/content/browser-plugins.js
  # re-use 'abouthome' page for 'newtab' page
  install -d browser/base/content/newtab
  cat browser/base/content/abouthome/aboutHome.xhtml > browser/base/content/newtab/newTab.xhtml
  # Load our searchplugins
  rm -rf -- browser/locales/searchplugins
  cp -aT -- /usr/lib/mozilla/searchplugins browser/locales/searchplugins
  # Disable various components at the source level
  sed -i 's/;1/;0/' toolkit/components/telemetry/TelemetryStartup.manifest
  #sed -i 's/;1/;0/' browser/experiments/Experiments.manifest
  sed -i '/pocket/d'          browser/extensions/moz.build
  sed -i '/activity-stream/d' browser/extensions/moz.build
}

build() {
  cd mozilla-unified

  export MOZ_SOURCE_REPO="$_repo"

  ./mach build
  ./mach buildsymbols
}

package() {
  local _icu_ver
  _icu_ver=$(pacman -S --print-format='%v' icu)
  depends+=("icu>=${_icu_ver}" "icu<$((${_icu_ver%%.*} + 1))")

  cd mozilla-unified
  DESTDIR="$pkgdir" ./mach install
  find . -name '*crashreporter-symbols-full.zip' -exec cp -fvt "$startdir" {} +

  _vendorjs="$pkgdir/usr/lib/$pkgname/browser/defaults/preferences/vendor.js"
  install -Dm644 /dev/stdin "$_vendorjs" <<END
// Use LANG environment variable to choose locale
pref("intl.locale.requested", "");

// Use system-provided dictionaries
pref("spellchecker.dictionary_path", "/usr/share/hunspell");

// Disable default browser checking.
pref("browser.shell.checkDefaultBrowser", false);

// Don't disable our bundled extensions in the application directory
pref("extensions.autoDisableScopes", 11);
pref("extensions.shownSelectionUI", true);
END

  # Parabola additions to vendor.js
  #
  # TODO: Go through this and figure out what's nescessary, remove
  # most of it.  This is mostly cargo-cult BS.  For example, disabling
  # all the EME stuff... that's already off because of `--disable-eme`
  # in `.mozconfig`.  Some of these settings no longer exist.  Some of
  # these settings don't do anything on GNU/Linux.
  #
  # However, they don't seem to be causing any of the critical issues.
  local _shortver=$(cut -d. -f1,2 <<<"$pkver")
  cat >> "$_vendorjs" <<END
// Disable "alt" as a shortcut key to open full menu bar. Conflicts with "alt" as a modifier
pref("ui.key.menuAccessKeyFocuses", false);

// Disable the GeoLocation API for content
pref("geo.enabled", false);

// Make sure that the request URL of the GeoLocation backend is empty
pref("geo.wifi.uri", "");

// Disable Freedom Violating DRM Feature
pref("browser.eme.ui.enabled", false);
// EME
pref("media.eme.enabled", false);
pref("media.eme.apiVisible", false);

// Google Widevine DRM
// https://blog.mozilla.org/futurereleases/2016/04/08/mozilla-to-test-widevine-cdm-in-firefox-nightly/
// https://wiki.mozilla.org/QA/Widevine_CDM
// https://bugzilla.mozilla.org/show_bug.cgi?id=1288580
pref("media.gmp-widevinecdm.visible", false);
pref("media.gmp-widevinecdm.enabled", false);
pref("media.gmp-widevinecdm.autoupdate", false);

// Default to classic view for about:newtab
pref("browser.newtabpage.enhanced", false);
pref("browser.newtabpage.activity-stream.enabled", false);

// Poodle attack
pref("security.tls.version.min", 1);

// Don't call home for blacklisting
pref("extensions.blocklist.enabled", false);

// Disable plugin installer
pref("plugins.hide_infobar_for_missing_plugin", true);
pref("plugins.hide_infobar_for_outdated_plugin", true);
pref("plugins.notifyMissingFlash", false);

//https://developer.mozilla.org/en-US/docs/Web/API/MediaSource
//pref("media.mediasource.enabled",true);

// Speeding it up
pref("network.http.pipelining", true);
pref("network.http.proxy.pipelining", true);
pref("network.http.pipelining.maxrequests", 10);
pref("nglayout.initialpaint.delay", 0);

// Disable third party cookies
pref("network.cookie.cookieBehavior", 1);

// Prevent EULA dialog to popup on first run
pref("browser.EULA.override", true);

// Set useragent to Firefox compatible
//pref("general.useragent.compatMode.firefox", true);
// Spoof the useragent to a generic one
pref("general.useragent.compatMode.firefox", true);
// Spoof the useragent to a generic one
pref("general.useragent.override", "Mozilla/5.0 (Windows NT 6.1; rv:$_shortver) Gecko/20100101 Firefox/$_shortver");
pref("general.appname.override", "Netscape");
pref("general.appversion.override", "$_shortver");
pref("general.buildID.override", "Gecko/20100101");
pref("general.oscpu.override", "Windows NT 6.1");
pref("general.platform.override", "Win32");

// Privacy & Freedom Issues
// https://webdevelopmentaid.wordpress.com/2013/10/21/customize-privacy-settings-in-mozilla-firefox-part-1-aboutconfig/
// https://panopticlick.eff.org
// http://ip-check.info
// http://browserspy.dk
// https://wiki.mozilla.org/Fingerprinting
// http://www.browserleaks.com
// http://fingerprint.pet-portal.eu
pref("privacy.donottrackheader.enabled", true);
pref("privacy.donottrackheader.value", 1);
pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);

// CIS 2.1.1 Disable Auto Update / Balrog
pref("app.update.auto", false);
pref("app.update.checkInstallTime", false);
pref("app.update.enabled", false);
pref("app.update.staging.enabled", false);
pref("app.update.url", "about:blank");
pref("media.gmp-manager.certs.1.commonName", "");
pref("media.gmp-manager.certs.2.commonName", "");
// Disable Gecko media plugins: https://wiki.mozilla.org/GeckoMediaPlugins
pref("media.gmp-manager.url", "http://127.0.0.1/");
pref("media.gmp-manager.url.override", "data:text/plain,");
pref("media.gmp-provider.enabled", false);
// Don't install openh264 codec
pref("media.gmp-gmpopenh264.enabled", false);
pref("media.gmp-eme-adobe.enabled", false);
pref("media.peerconnection.video.h264_enabled", false);

// CIS 2.3.4 Block Reported Web Forgeries
// http://kb.mozillazine.org/Browser.safebrowsing.enabled
// http://kb.mozillazine.org/Safe_browsing
// https://support.mozilla.org/en-US/kb/how-does-phishing-and-malware-protection-work
// http://forums.mozillazine.org/viewtopic.php?f=39&t=2711237&p=12896849#p12896849
pref("browser.safebrowsing.enabled", false);

// CIS 2.3.5 Block Reported Attack Sites
// http://kb.mozillazine.org/Browser.safebrowsing.malware.enabled
pref("browser.safebrowsing.malware.enabled", false);

// Disable safe browsing remote lookups for downloaded files.
// This leaks information to google.
// https://www.mozilla.org/en-US/firefox/39.0/releasenotes/
// https://wiki.mozilla.org/Security/Application_Reputation
pref("browser.safebrowsing.downloads.remote.enabled", false);
pref("browser.safebrowsing.appRepURL", "about:blank");
pref("browser.safebrowsing.provider.mozilla.gethashURL", "about:blank");
pref("browser.safebrowsing.provider.mozilla.updateURL", "about:blank");
pref("browser.safebrowsing.downloads.remote.block_dangerous", false);
pref("browser.safebrowsing.downloads.remote.block_dangerous_host", false);
pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
pref("browser.safebrowsing.downloads.remote.enabled", false);
pref("browser.safebrowsing.downloads.remote.url", "about:blank");
pref("browser.safebrowsing.provider.google.gethashURL", "about:blank");
pref("browser.safebrowsing.provider.google.updateURL", "about:blank");
pref("browser.safebrowsing.provider.google.lists", "about:blank");

// https://bugzilla.mozilla.org/show_bug.cgi?id=1025965
pref("browser.safebrowsing.phishing.enabled", false);
pref("browser.safebrowsing.provider.google4.lists", "about:blank");
pref("browser.safebrowsing.provider.google4.updateURL", "about:blank");
pref("browser.safebrowsing.provider.google4.gethashURL", "about:blank");
pref("browser.safebrowsing.provider.google4.reportURL", "about:blank");
pref("browser.safebrowsing.provider.mozilla.lists", "about:blank");

// Disable Microsoft Family Safety MiTM support
// https://bugzilla.mozilla.org/show_bug.cgi?id=1239166
// https://wiki.mozilla.org/SecurityEngineering/Untrusted_Certificates_in_Windows_Child_Mode
// https://hg.mozilla.org/releases/mozilla-release/file/ddb37c386bb2ffa180117b4d30ca3b41a8af233c/security/manager/ssl/nsNSSComponent.cpp#l782
pref("security.family_safety.mode", 0);
// https://bugzilla.mozilla.org/show_bug.cgi?id=1265113
// https://hg.mozilla.org/releases/mozilla-release/rev/d9659c22b3c5
// https://bugzilla.mozilla.org/show_bug.cgi?id=1298883
pref("security.enterprise_roots.enabled", false);

//pref("services.sync.privacyURL", "https://www.gnu.org/software/gnuzilla/");
pref("social.enabled", false);
pref("social.remote-install.enabled", false);
pref("datareporting.healthreport.uploadEnabled", false);
pref("datareporting.healthreport.about.reportUrl", "127.0.0.1");
pref("datareporting.healthreport.documentServerURI", "127.0.0.1");
pref("healthreport.uploadEnabled", false);
pref("social.toast-notifications.enabled", false);
pref("datareporting.policy.dataSubmissionEnabled", false);
pref("datareporting.healthreport.service.enabled", false);
pref("browser.slowStartup.notificationDisabled", true);
pref("network.http.sendRefererHeader", 2);
//pref("network.http.referer.spoofSource", true);
//http://grack.com/blog/2010/01/06/3rd-party-cookies-dom-storage-and-privacy/
//pref("dom.storage.enabled", false);
pref("dom.event.clipboardevents.enabled",false);
pref("network.prefetch-next", false);
pref("network.dns.disablePrefetch", true);
pref("network.http.sendSecureXSiteReferrer", false);
pref("toolkit.telemetry.archive.enabled", false);
pref("toolkit.telemetry.bhrPing.enabled", false);
pref("toolkit.telemetry.enabled", false);
pref("toolkit.telemetry.unified", false);
pref("toolkit.telemetry.newProfilePing.enabled", false);
pref("toolkit.telemetry.firstShutdownPing.enabled", false);
pref("toolkit.telemetry.server", "127.0.0.1");
pref("app.shield.optoutstudies.enabled", false);
pref("experiments.enabled", false);
pref("experiments.manifest.uri", "127.0.0.1");
pref("extensions.pocket.enabled", false);
pref("extensions.pocket.api", "127.0.0.1");
// Do not tell what plugins do we have enabled: https://mail.mozilla.org/pipermail/firefox-dev/2013-November/001186.html
pref("plugins.enumerable_names", "");
pref("plugin.state.flash", 0);
// Do not autoupdate search engines
pref("browser.search.update", false);
// Warn when the page tries to redirect or refresh
//pref("accessibility.blockautorefresh", true);
pref("dom.battery.enabled", false);
pref("device.sensors.enabled", false);
pref("camera.control.face_detection.enabled", false);
pref("camera.control.autofocus_moving_callback.enabled", false);
pref("network.http.speculative-parallel-limit", 0);
// No search suggestions
pref("browser.urlbar.userMadeSearchSuggestionsChoice", true);
pref("browser.search.suggest.enabled", false);

// Crypto hardening
// https://gist.github.com/haasn/69e19fc2fe0e25f3cff5
// General settings
//pref("security.tls.unrestricted_rc4_fallback", false);
//pref("security.tls.insecure_fallback_hosts.use_static_list", false);
//pref("security.tls.version.min", 1);
//pref("security.ssl.require_safe_negotiation", true);
//pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
//pref("security.ssl3.rsa_seed_sha", true);
//pref("security.OCSP.enabled", 1);
//pref("security.OCSP.require", true);


// WebRTC
pref("media.peerconnection.enabled", false);
pref("media.peerconnection.ice.default_address_only", true);

pref("font.default.x-western", "sans-serif");

// Preferences for the Get Add-ons panel and search engines
pref("extensions.webservice.discoverURL", "https://directory.fsf.org/wiki/GNU_IceCat");
pref("extensions.getAddons.search.url", "https://directory.fsf.org/wiki/GNU_IceCat");
pref("browser.search.searchEnginesURL", "https://directory.fsf.org/wiki/GNU_IceCat");

// Mobile
pref("privacy.announcements.enabled", false);
pref("browser.snippets.enabled", false);
pref("browser.snippets.syncPromo.enabled", false);
pref("identity.mobilepromo.android", "https://f-droid.org/repository/browse/?fdid=org.gnu.icecat&");
pref("browser.snippets.geoUrl", "http://127.0.0.1/");
pref("browser.snippets.updateUrl", "http://127.0.0.1/");
pref("browser.snippets.statsUrl", "http://127.0.0.1/");
pref("datareporting.policy.firstRunTime", 0);
pref("datareporting.policy.dataSubmissionPolicyVersion", 2);
pref("browser.webapps.checkForUpdates", 0);
pref("browser.webapps.updateCheckUrl", "http://127.0.0.1/");
pref("app.faqURL", "http://libreplanet.org/wiki/Group:IceCat/FAQ");

// PFS url
pref("pfs.datasource.url", "http://gnuzilla.gnu.org/plugins/PluginFinderService.php?mimetype=%PLUGIN_MIMETYPE%");
pref("pfs.filehint.url", "http://gnuzilla.gnu.org/plugins/PluginFinderService.php?mimetype=%PLUGIN_MIMETYPE%");

// Geolocation depends on third party services
pref("geo.enabled", false);
pref("geo.wifi.uri", "");

// Disable heartbeat
pref("browser.selfsupport.url", "");

// Disable Link to FireFox Marketplace, currently loaded with non-free "apps"
pref("browser.apps.URL", "");

// Use old style preferences, that allow javascript to be disabled
pref("browser.preferences.inContent",false);

// Don't download ads for the newtab page
pref("browser.newtabpage.directory.source", "");
pref("browser.newtabpage.directory.ping", "");
pref("browser.newtabpage.introShown", true);

// Disable home snippets
pref("browser.aboutHomeSnippets.updateUrl", "data:text/html");

// Disable hardware acceleration and WebGL
//pref("layers.acceleration.disabled", false);
pref("webgl.disabled", false);

// Disable SSDP
pref("browser.casting.enabled", false);

// Disable directory service
pref("social.directories", "");
pref("social.whitelist", "");
pref("social.shareDirectory", "");

// Disable Pocket integration
pref("browser.pocket.api", "about:blank");
pref("browser.pocket.enabled", false);
pref("browser.pocket.enabledLocales", "about:blank");
pref("browser.pocket.oAuthConsumerKey", "about:blank");
pref("browser.pocket.site", "about:blank");
pref("browser.pocket.useLocaleList", false);
pref("extensions.pocket.enabled", false);

// Do not require xpi extensions to be signed by Mozilla
pref("xpinstall.signatures.required", false);

// Disable File and Directory Entries API (Imported from Edge/Chromium)
// https://developer.mozilla.org/en-US/Firefox/Releases/50#Files_and_directories
// https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API
// https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API/Introduction
// https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API/Firefox_support
// https://bugzilla.mozilla.org/show_bug.cgi?id=1265767
pref("dom.webkitBlink.filesystem.enabled", false);
// https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/webkitdirectory
// https://bugzilla.mozilla.org/show_bug.cgi?id=1258489
// https://hg.mozilla.org/releases/mozilla-release/rev/133af19777be
pref("dom.webkitBlink.dirPicker.enabled", false);

// Directory Upload API, webkitdirectory
// https://bugzilla.mozilla.org/show_bug.cgi?id=1188880
// https://bugzilla.mozilla.org/show_bug.cgi?id=907707
// https://wicg.github.io/directory-upload/proposal.html
pref("dom.input.dirpicker", false);

// fix alsa sound sandbox issue for iceweasel-58
// https://labs.parabola.nu/issues/1628
pref("security.sandbox.content.syscall_whitelist", "16");
END

  _distini="$pkgdir/usr/lib/$pkgname/distribution/distribution.ini"
  install -Dm644 /dev/stdin "$_distini" <<END
[Global]
id=parabola
version=1.0
about=Parabola Iceweasel for Parabola GNU/Linux-libre

[Preferences]
app.distributor=parabola
app.distributor.channel=$pkgname
app.partner.parabola=parabola
END

  for i in 16 22 24 32 48 64 128 192 256 384; do
    install -Dm644 browser/branding/$pkgname/default$i.png \
      "$pkgdir/usr/share/icons/hicolor/${i}x${i}/apps/$pkgname.png"
  done
  install -Dm644 "browser/branding/$pkgname/${pkgname}_icon.svg" \
    "$pkgdir/usr/share/icons/hicolor/scalable/apps/$pkgname.svg"

  install -Dm644 ../$pkgname.desktop \
    "$pkgdir/usr/share/applications/$pkgname.desktop"

  # Install a wrapper to avoid confusion about binary path
  install -Dm755 /dev/stdin "$pkgdir/usr/bin/$pkgname" <<END
#!/bin/sh
exec /usr/lib/$pkgname/$pkgname "\$@"
END

  # Replace duplicate binary with wrapper
  # https://bugzilla.mozilla.org/show_bug.cgi?id=658850
  ln -srf "$pkgdir/usr/bin/$pkgname" \
    "$pkgdir/usr/lib/$pkgname/$pkgname-bin"
}