Problem: no CI build with tweetnacl

Solution: add builds/tweetnacl/ci_build.sh and add it in travis.yml

.travis.yml

@@ -9,6 +9,7 @@ os:
 env:
 - BUILD_TYPE=default
 - BUILD_TYPE=android
+- BUILD_TYPE=tweetnacl
 
 sudo: false
 

builds/tweetnacl/ci_build.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -x
+
+mkdir tmp
+BUILD_PREFIX=$PWD/tmp
+
+CONFIG_OPTS=()
+CONFIG_OPTS+=("CFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("CPPFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("CXXFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("LDFLAGS=-L${BUILD_PREFIX}/lib")
+CONFIG_OPTS+=("PKG_CONFIG_PATH=${BUILD_PREFIX}/lib/pkgconfig")
+CONFIG_OPTS+=("--prefix=${BUILD_PREFIX}")
+
+#   Build and check this project
+(
+    cd ../..;
+    ./autogen.sh &&
+    ./configure "${CONFIG_OPTS[@]}" --with-tweetnacl=yes &&
+    make &&
+    ( if make check; then true; else cat test-suite.log; exit 1; fi ) &&
+    make install
+) || exit 1