add missing declaration

Author: wildone

.travis.yml

@@ -17,9 +17,10 @@ before_install:
   - echo GET CONFIG FROM GIT
   - export CURRENT_VERSION=$(git describe --tag --always --long | sed -e 's/\(.*\)-\(.*\)-.*/\1.\2/')
   - declare -a CURRENT_VERSION_ARRAY="(${CURRENT_VERSION//./ })"; export SEMVER_MAJOR=${CURRENT_VERSION_ARRAY[0]}; export SEMVER_MINOR=${CURRENT_VERSION_ARRAY[1]}; export SEMVER_PATCH=${CURRENT_VERSION_ARRAY[2]}; export SEMVER_BUILD=${CURRENT_VERSION_ARRAY[-1]}
+  - export SEMVER_BUILD=$(( ${SEMVER_PATCH} + ${SEMVER_BUILD} ))
   - echo SEMVER_MAJOR:${SEMVER_MAJOR}
   - echo SEMVER_MINOR:${SEMVER_MINOR}
-  - echo SEMVER_BUILD:$(( ${SEMVER_PATCH} + ${SEMVER_BUILD} ))
+  - echo SEMVER_BUILD:${SEMVER_BUILD}
   - export SEMVER=${SEMVER_MAJOR}.${SEMVER_MINOR}.${SEMVER_BUILD}
   - echo SEMVER:$SEMVER
   - if [[ ${SEMVER_MAJOR} == "" ]]; then travis_terminate 1; fi