|  | @@ -140,6 +140,8 @@ addons:
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				|  |  |        #- zlib
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				|  |  |        ## Optional dependencies
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				|  |  |        - libscrypt
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				|  |  | +      - xz
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				|  |  | +      - zstd
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				|  |  |        ## Required build dependencies
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				|  |  |        ## Tor needs pkg-config to find some dependencies at build time
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				|  |  |        - pkg-config
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				|  | @@ -162,8 +164,6 @@ before_install:
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				|  |  |  install:
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				|  |  |    ## If we're on OSX, configure ccache (ccache is automatically installed and configured on Linux)
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				|  |  |    - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PATH="/usr/local/opt/ccache/libexec:$PATH"; fi
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				|  |  | -  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install xz; fi
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				|  |  | -  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install zstd; fi
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				|  |  |    ## If we're on OSX, OpenSSL is keg-only, so tor 0.2.9 and later need to be configured --with-openssl-dir= to build
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				|  |  |    - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then OPENSSL_OPTIONS=--with-openssl-dir=`brew --prefix openssl`; fi
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				|  |  |    ## Install conditional features
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