Bug 1494833 - Bump tup version to v0.7.8; r=chmanchester

This incorporates some fixes for ccache, icecream, and a better display
output (decreasing count instead of an increasing count). It may also
let us experiment with incremental rust support, though I think that
feature still needs some more work.

MozReview-Commit-ID: 7zPGiL9Ob6N

Differential Revision: https://phabricator.services.mozilla.com/D7152

--HG--
extra : moz-landing-system : lando

build/moz.configure/tup.configure

@@ -13,7 +13,7 @@ tup = check_prog('TUP', ['tup'])
 @checking('for tup version')
 @imports('re')
 def tup_version(tup):
-    tup_min_version = '0.7.7'
+    tup_min_version = '0.7.8'
     out = check_cmd_output(tup, '--version',
                            onerror=lambda: die('Failed to get tup version'))
     m = re.search(r'tup v?([0-9]+\.[0-9]+\.[0-9]+)', out)

taskcluster/scripts/misc/build-tup-linux.sh

@@ -3,7 +3,7 @@ set -e -v
 
 # This script is for building tup on Linux.
 
-TUP_REVISION=e948a999a38fefa0ac0d92f6357f82aca2f9cb17
+TUP_REVISION=v0.7.8
 
 WORKSPACE=$HOME/workspace
 UPLOAD_DIR=$HOME/artifacts
@@ -17,7 +17,7 @@ cd $WORKSPACE/build/src
 git clone https://github.com/gittup/tup.git
 cd tup
 git checkout $TUP_REVISION
-echo 'CONFIG_TUP_SERVER=ldpreload' > tup.config
+(echo 'CONFIG_TUP_SERVER=ldpreload'; echo 'CONFIG_TUP_USE_SYSTEM_PCRE=n') > tup.config
 ./bootstrap-ldpreload.sh
 cd ..
 tar caf tup.tar.xz tup/tup tup/tup-ldpreload.so tup/tup.1