Stop building on a platform as soon as a tarball build error is encountered.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39414 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

distrib/scripts/mac/tardist

@@ -7,6 +7,8 @@
 # because there's not enough space on the command line, plus we need to ignore the
 # blank lines.
 
+set -o errexit
+
 PROGNAME=$0
 WXSRC=$1
 WXDEST=$2

distrib/scripts/msw/makesetup.sh

@@ -4,6 +4,8 @@
 # Example:
 # ../distrib/msw/makesetup.sh --wxmsw --verbose &> log
 
+set -o errexit
+
 # If your zip accepts Cygwin-style paths, then
 # use cygpath, else substitute echo
 CYGPATHPROG=cygpath

distrib/scripts/unix/maketarballs

@@ -1,6 +1,8 @@
 #!/bin/sh
 # Makes the wxWidgets tarballs with 'make dist'
 
+set -o errexit
+
 PROGNAME=$0
 WXSRC=$1
 WXDEST=$2