Update Travis.

.github/travis_deploy.sh

@@ -15,7 +15,7 @@ source "$argv0dir/travis_init.sh" || exit 1
 set -x # debug
 
 if [[ $BM_X == rebuild-stubs ]]; then exit 0; fi
-# save space
+# save space and do not deploy debug builds
 if [[ $BM_B =~ (^|\+)coverage($|\+) ]]; then exit 0; fi
 if [[ $BM_B =~ (^|\+)debug($|\+) ]]; then exit 0; fi
 if [[ $BM_B =~ (^|\+)sanitize($|\+) ]]; then exit 0; fi
@@ -99,6 +99,7 @@ else
         [[ $cpu == amd64 ]] && os=win64
     fi
     d=$cpu-$os
+    unset cpu os
 fi
 d=$d-$BM_C-$BM_B
 
@@ -115,6 +116,7 @@ for exeext in .exe .out; do
         cp -p -i $f  $d/upx-git-${rev:0:12}$exeext
         sha256sum -b $d/upx-git-${rev:0:12}$exeext
     fi
+    unset f
 done
 
 # /***********************************************************************

.github/travis_init.sh

@@ -25,6 +25,9 @@ declare +x UPX_AUTOMATIC_BUILDS_SSL_KEY UPX_AUTOMATIC_BUILDS_SSL_IV
 # compatibility wrappers
 if [[ $TRAVIS_OS_NAME == osx ]]; then
 # use GNU coreutils ("brew install coreutils")
+chmod() {
+    gchmod "$@"
+}
 date() {
     gdate "$@"
 }
@@ -132,7 +135,7 @@ fi # BM_CROSS
 if [[ "$CC" == "false" ]]; then # generic
 if [[ -z $BM_CROSS ]]; then
     case $BM_C in
-        clang | clang-m?? | clang-3.4-m?? | clang-[678][0-9][0-9]-m??)
+        clang | clang-m?? | clang-3.4-m?? | clang-[6789][0-9][0-9]-m??)
             CC="clang"; CXX="clang++" ;; # standard system compiler
         clang-[3].[0-9]-m??)
             v=${BM_C:6:3}; CC="clang-$v"; CXX="clang++-$v"; SCAN_BUILD="scan-build-$v" ;;