GH398: Add mingw cross-compile, etc.

For all release branches.  It adds travis build support. If you don't
have a config file it uses the default (because we enabled travis for the
project), which uses ruby/rake/rakefiles, and you get confusing "build
still failing" messages.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit db9defdfe306e1adf0af7188b187d535eb0268da)

diff --git a/.travis.yml b/.travis.yml
new file mode 100644 (file)
index 0000000..cb28758
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,50 @@
+language: c
+
+addons:
+    apt_packages:
+        - binutils-mingw-w64
+        - gcc-mingw-w64
+
+os:
+    - linux
+    - osx
+
+compiler:
+    - clang
+    - gcc
+    - i686-w64-mingw32-gcc
+    - x86_64-w64-mingw32-gcc
+
+env:
+    - CONFIG_OPTS=""
+    - CONFIG_OPTS="shared"
+    - CONFIG_OPTS="--debug --strict-warnings"
+
+matrix:
+    exclude:
+        - os: osx
+          compiler: i686-w64-mingw32-gcc
+        - os: osx
+          compiler: x86_64-w64-mingw32-gcc
+
+before_script:
+    - if [ "$CC" == i686-w64-mingw32-gcc ]; then
+          export CROSS_COMPILE=${CC%%gcc}; unset CC;
+          ./Configure mingw $CONFIG_OPTS;
+      elif [ "$CC" == x86_64-w64-mingw32-gcc ]; then
+          export CROSS_COMPILE=${CC%%gcc}; unset CC;
+          ./Configure mingw64 $CONFIG_OPTS;
+      else
+          ./config $CONFIG_OPTS;
+      fi
+
+script:
+    - make
+    - if [ -z "$CROSS_COMPILE" ]; then make test; fi
+
+notifications:
+    recipient:
+        - openssl-commits@openssl.org
+    email:
+        on_success: change
+        on_failure: always