add example that compiles an executable with cbuilder

diff --git a/examples/01-compile.t b/examples/01-compile.t
new file mode 100644 (file)
index 0000000..ffde85d
--- /dev/null
+++ b/examples/01-compile.t
@@ -0,0 +1,61 @@
+#!perl
+
+# This test may be performed after the installation of Alien::ZMQ, e.g.:
+#   prove examples/01-compile.t
+
+use warnings;
+use strict;
+
+BEGIN {
+    require ExtUtils::CBuilder;
+    unless (ExtUtils::CBuilder->new->have_compiler) {
+        require Test::More;
+        Test::More::plan(skip_all => "these tests require a working compiler");
+    }
+}
+
+use Alien::ZMQ;
+use Test::More tests => 5;
+use version;
+
+my $cb = ExtUtils::CBuilder->new;
+
+my $src = "test-$$.c";
+open my $SRC, '>', $src;
+print $SRC <<END;
+#include <stdio.h>
+#include <zmq.h>
+int main(int argc, char* argv[]) {
+    int major, minor, patch;
+    zmq_version(&major, &minor, &patch);
+    printf("%d.%d.%d %d.%d.%d",
+        ZMQ_VERSION_MAJOR, ZMQ_VERSION_MINOR, ZMQ_VERSION_PATCH,
+        major, minor, patch);
+    return 0;
+}
+END
+close $SRC;
+
+my $obj = eval {
+    $cb->compile(source => $src, extra_compiler_flags => Alien::ZMQ::cflags);
+};
+unlink $src;
+ok($obj, "compile C code");
+BAIL_OUT("compile failed") unless $obj;
+
+my $exe = eval {
+    $cb->link_executable(objects => $obj, extra_linker_flags => Alien::ZMQ::libs);
+};
+unlink $obj;
+ok($exe, "link object");
+BAIL_OUT("link failed") unless $exe;
+
+$ENV{LD_LIBRARY_PATH} = Alien::ZMQ::lib_dir;
+my $out = `./$exe`;
+ok($out, "run executable");
+unlink $exe;
+my ($inc_version, $lib_version) = $out =~ /(\d\.\d\.\d) (\d\.\d\.\d)/;
+
+ok(version->parse($inc_version) == Alien::ZMQ::inc_version, "include versions are equal");
+ok(version->parse($lib_version) == Alien::ZMQ::lib_version, "library versions are equal");
+