CI's lib usage test

.travis.yml

@@ -14,6 +14,7 @@ matrix:
     - env: BUILD=arm
   allow_failures:
     - env: BUILD=arm
+    - env: BUILD=lib-usage
 
 cache: apt
 
@@ -30,6 +31,7 @@ script:
  - if [ x$BUILD == xcmake ]; then ./CI/build.sh; fi
  - if [ x$BUILD == xtarball-dist ]; then ./CI/tarball.sh; fi
  - if [ x$BUILD == xarm ]; then ./CI/debian-arm.sh; fi
+ - if [ x$BUILD == xlib-usage ]; then ./CI/lib-usage.sh; fi
 
 after_success: |
   if [ x$COVERALLS == xyes ]; then \

CI/lib-usage-1.c

@@ -0,0 +1,16 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+#include <libhpack/header_parser.h>
+
+int
+main()
+{
+    ret_t                 ret;
+    hpack_header_table_t *table;
+
+    ret = hpack_header_table_new (&table);
+    if (ret ! = ret_ok) return 1;
+
+    hpack_header_table_free (table);
+    return 0;
+}

CI/lib-usage.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# Play it safe: exit if something fails
+set -e -o pipefail -o errtrace -o functrace
+
+# Install libhpack
+make all doc -j
+sudo make -C build install
+
+# Compile tests
+HPACK_CFLAGS=`pkg-config --cflags libhpack`
+HPACK_LIBS=`pkg-config --libs libhpack`
+
+cd CI
+$CC -c -o lib-usage-1.o lib-usage-1.c ${HPACK_CFLAGS}
+$CC -o lib-usage-1 lib-usage-1.o ${HPACK_LIBS}
+cd ..