CI: compile release binaries.

Author: zopieux

.travis.yml

@@ -32,7 +32,7 @@ script:
       if test $JOB == build; then
       mkdir _build _install
       cd _build 
-      cmake -DCMAKE_INSTALL_PREFIX=$PWD/../_install ..
+      cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$PWD/../_install ..
       make VERBOSE=1
       make install
       fi
@@ -54,7 +54,10 @@ deploy:
   file_glob: true
   file: $TRAVIS_BUILD_DIR/_install/**/*
   draft: true
+  skip_cleanup: true
+  overwrite: true
   on:
     tags: true
+    condition: $TRAVIS_COMPILER = clang
   token:
     secure: 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