Make some of the changes needed to the 'makeicecat' script, to allow it to run
in a snippet without network access.  After this patch is applied, some
additional changes will be made using 'substitute*'.

diff --git a/makeicecat b/makeicecat
index 5a4390b..fcfa143 100644
--- a/makeicecat
+++ b/makeicecat
@@ -29,55 +29,55 @@ SOURCEDIR=icecat-$FFVERSION
 
 DATA="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"/data
 
-mkdir output
-cd output
+# mkdir output
+# cd output
 
 ###############################################################################
 # Retrieve FF source code
 ###############################################################################
 
-rm mozilla-esr${FFMAJOR} $SOURCEDIR -rf
-
-wget -N https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FFVERSION}esr/source/firefox-${FFVERSION}esr.source.tar.xz
-wget -N https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FFVERSION}esr/source/firefox-${FFVERSION}esr.source.tar.xz.asc
-gpg --recv-keys --keyserver keyserver.ubuntu.com 24C6F355
-gpg --verify firefox-${FFVERSION}esr.source.tar.xz.asc
-echo -n 0a5f0c1d8d1e9443d85083d37fec32e5cc15c1001ea992d49745490065b4a023 firefox-${FFVERSION}esr.source.tar.xz |sha256sum -c -
-
-echo Extracting Firefox tarball
-tar -xf firefox-${FFVERSION}esr.source.tar.xz
-
-mv firefox-${FFVERSION} $SOURCEDIR
+# rm mozilla-esr${FFMAJOR} $SOURCEDIR -rf
+# 
+# wget -N https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FFVERSION}esr/source/firefox-${FFVERSION}esr.source.tar.xz
+# wget -N https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FFVERSION}esr/source/firefox-${FFVERSION}esr.source.tar.xz.asc
+# gpg --recv-keys --keyserver keyserver.ubuntu.com 24C6F355
+# gpg --verify firefox-${FFVERSION}esr.source.tar.xz.asc
+# echo -n 0a5f0c1d8d1e9443d85083d37fec32e5cc15c1001ea992d49745490065b4a023 firefox-${FFVERSION}esr.source.tar.xz |sha256sum -c -
+# 
+# echo Extracting Firefox tarball
+# tar -xf firefox-${FFVERSION}esr.source.tar.xz
+# 
+# mv firefox-${FFVERSION} $SOURCEDIR
 
 ###############################################################################
 # Retrieve l10n
 ###############################################################################
 
-mkdir l10n
-cd l10n
-while read line;do
-    line=$(echo $line |cut -d' ' -f1)
-    #[ $line = "es-ES" ] || continue # To speed up testing
-    [ $line = "en-US" ] && continue
-    hg clone https://hg.mozilla.org/l10n-central/$line
-    mkdir -p $line/browser/chrome/browser/preferences
-    touch $line/browser/chrome/browser/preferences/advanced-scripts.dtd
-    rm -rf $line/.hg*
-done < ../$SOURCEDIR/browser/locales/shipped-locales
-cd ..
-
-mv l10n $SOURCEDIR
-
-hg clone http://hg.mozilla.org/l10n/compare-locales/
-cd compare-locales/
-hg checkout RELEASE_3_3_0
-cd ..
-rm compare-locales/.hg* compare-locales/.git* -rf
-mv compare-locales $SOURCEDIR/l10n
+# mkdir l10n
+# cd l10n
+# while read line;do
+#     line=$(echo $line |cut -d' ' -f1)
+#     #[ $line = "es-ES" ] || continue # To speed up testing
+#     [ $line = "en-US" ] && continue
+#     hg clone https://hg.mozilla.org/l10n-central/$line
+#     mkdir -p $line/browser/chrome/browser/preferences
+#     touch $line/browser/chrome/browser/preferences/advanced-scripts.dtd
+#     rm -rf $line/.hg*
+# done < ../$SOURCEDIR/browser/locales/shipped-locales
+# cd ..
+# 
+# mv l10n $SOURCEDIR
+# 
+# hg clone http://hg.mozilla.org/l10n/compare-locales/
+# cd compare-locales/
+# hg checkout RELEASE_3_3_0
+# cd ..
+# rm compare-locales/.hg* compare-locales/.git* -rf
+# mv compare-locales $SOURCEDIR/l10n
 
 #######################################################
 
-cd $SOURCEDIR
+# cd $SOURCEDIR
 
 #for patch in $DATA/patches/*; do
 #    echo Patching with file: $patch
@@ -590,6 +590,6 @@ sed 's/777/755/;' -i toolkit/crashreporter/google-breakpad/Makefile.in
 # Fix CVE-2012-3386
 /bin/sed 's/chmod a+w/chmod u+w/' -i ./js/src/ctypes/libffi/Makefile.in ./toolkit/crashreporter/google-breakpad/Makefile.in ./toolkit/crashreporter/google-breakpad/src/third_party/glog/Makefile.in || true
 
-cd ..
-echo Packaging tarball
-tar cfj icecat-$ICECATVERSION.tar.bz2 $SOURCEDIR
+# cd ..
+# echo Packaging tarball
+# tar cfj icecat-$ICECATVERSION.tar.bz2 $SOURCEDIR
&lt;https://bugs.gnu.org/29368&gt;.
Reported by Martin Castillo &lt;castilma@uni-bremen.de&gt;.

* nix/scripts/list-runtime-roots.in (referenced-files): Ignore ESRCH.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-11-12 23:53:12 +0100'>2017-11-12</span></td><td><a href='/guix/commit/nix/scripts?id=856b68bda959638201182304ded2759c7de5411b'>list-runtime-roots: Ignore PIDs we cannot access.</a><span class='msg-avail'>...<span class='msg-tooltip'>This allows running as non-root.
Fixes a regression introduced in b8f59cdc20e9d83ce63523ef917e95fcee07f134.

* nix/scripts/list-runtime-roots.in (referenced-files): Handle EACCES in
addition to ENOENT.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-11-12 22:42:17 +0100'>2017-11-12</span></td><td><a href='/guix/commit/nix/scripts?id=fb17a89912c2a3738dae716e30481c11e1c6f0ac'>list-runtime-roots: Canonicalize store items.</a><span class='msg-avail'>...<span class='msg-tooltip'>Looking at 'addAdditionalRoots' in libstore/gc.cc, it looks like it
should always have been this way.  In practice it probably doesn't make
much of a difference.

* nix/scripts/list-runtime-roots.in (canonicalize-store-item): New
procedure.
&lt;top level&gt;: Use it.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-11-12 22:42:17 +0100'>2017-11-12</span></td><td><a href='/guix/commit/nix/scripts?id=b8f59cdc20e9d83ce63523ef917e95fcee07f134'>list-runtime-roots: Do not use 'lsof'.</a><span class='msg-avail'>...<span class='msg-tooltip'>This makes things a bit faster (0.8s instead of 1.4s on my laptop).

* nix/scripts/list-runtime-roots.in (lsof-roots): Remove.
(proc-fd-roots): Return the empty list when 'scandir' returns #f.
(referenced-files): New procedure.
Use it at the top level.
</span></span></td><td>Ludovic Courtès</td></tr>