Cause pip installation of numbuf to fail if the build.sh or setup.sh fail. (#163)

numbuf/build.sh

@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
 
+# Cause the script to exit if a single command fails.
+set -e
+
 ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
 
 # Determine how many parallel jobs to use for make based on the number of cores

numbuf/setup.sh

@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
 
+# Cause the script to exit if a single command fails.
+set -e
+
 ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
 
 platform="unknown"

numbuf/thirdparty/build_thirdparty.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
 set -x
+
+# Cause the script to exit if a single command fails.
 set -e
 
 TP_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)

numbuf/thirdparty/download_thirdparty.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
 set -x
+
+# Cause the script to exit if a single command fails.
 set -e
 
 TP_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)