.travis.yml: further attempt to fix the Travis CI

Turns out the OpenSSL problem on OSX is well known: sfackler/rust-openssl#255 . Trying the most recent and comprehensive-looking suggestion.
tectonic-typesetting · Jan 8, 2017 · c54deb5 · c54deb5
1 parent f046aac
commit c54deb5
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -34,4 +34,7 @@ before_install:
 # programs.
 
 script:
+  - export OPENSSL_INCLUDE_DIR=$(brew --prefix openssl)/include
+  - export OPENSSL_LIB_DIR=$(brew --prefix openssl)/lib
+  - export DEP_OPENSSL_INCLUDE=$(brew --prefix openssl)/include
   - PKG_CONFIG_PATH=/usr/local/opt/icu4c/lib/pkgconfig cargo build --verbose && cargo test --no-run && target/debug/tex_outputs-???????????????? && target/debug/trip-????????????????