krb5 commit: Add a Travis job to build with OpenSSL crypto

[Greg Hudson]

https://github.com/krb5/krb5/commit/b0bbe59b41f5132f6ad605f99b06e157b1f45ea5
commit b0bbe59b41f5132f6ad605f99b06e157b1f45ea5
Author: Robbie Harwood <rharwood at redhat.com>
Date:   Mon May 6 14:29:53 2019 -0400

    Add a Travis job to build with OpenSSL crypto
    
    [ghudson at mit.edu: simplified configure option passing]

 .travis-ci.sh |    2 +-
 .travis.yml   |    4 ++++
 2 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/.travis-ci.sh b/.travis-ci.sh
index 4e6e1b6..55f5e8d 100644
--- a/.travis-ci.sh
+++ b/.travis-ci.sh
@@ -1,6 +1,6 @@
 cd src
 autoreconf
-./configure --enable-maintainer-mode --with-ldap
+./configure --enable-maintainer-mode --with-ldap $CONFIGURE_OPTS
 make $MAKEVARS
 make check
 make distclean
diff --git a/.travis.yml b/.travis.yml
index f093899..9eb736b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,10 @@ matrix:
   include:
   - compiler: clang
     env: MAKEVARS=CPPFLAGS=-Werror
+  - compiler: clang
+    env:
+      - MAKEVARS=CPPFLAGS=-Werror
+      - CONFIGURE_OPTS=--with-crypto-impl=openssl
   - compiler: gcc
 
 before_install: