Static libraries (#4)

Author: philrz

.github/workflows/release.yml

@@ -83,7 +83,10 @@ jobs:
 
     - name: Install dependencies (Linux)
       if: startsWith(matrix.platform, 'ubuntu-')
-      run: sudo apt-get -y install ccache cmake make gcc g++ flex libfl-dev bison libpcap-dev libssl-dev python3 python3-dev python3-setuptools swig zlib1g-dev zip libmaxminddb-dev
+      run: |
+        sudo apt-get -y install ccache cmake make gcc g++ flex libfl-dev bison libpcap-dev libssl-dev python3 python3-dev python3-setuptools swig zlib1g-dev zip libmaxminddb-dev
+        # Removing shared objects to force static linking.
+        sudo find /usr/lib \( -name libpcap.so\* -o -name libmaxminddb.so\* \) -delete
 
     - name: Install dependencies (macOS)
       if: startsWith(matrix.platform, 'macos-')
@@ -97,7 +100,8 @@ jobs:
       if: "!startsWith(matrix.platform, 'windows-')"
       run: |
         cd zeek-src
-        ./configure --binary-package --enable-static-broker --enable-static-binpac --disable-spicy --disable-af-packet --disable-zeekctl --disable-python --disable-broker-tests --disable-auxtools --disable-archiver --osx-min-version=12
+        [ $(uname) = Linux ] && linux_flags='-D ZLIB_USE_STATIC_LIBS=TRUE'
+        ./configure --binary-package --enable-static-broker --enable-static-binpac --disable-spicy --disable-af-packet --disable-zeekctl --disable-python --disable-broker-tests --disable-auxtools --disable-archiver --osx-min-version=12 -D OPENSSL_USE_STATIC_LIBS=TRUE $linux_flags
         make -j${{ steps.cpu-cores.outputs.count }}
         sudo make install
         sudo strip /usr/local/zeek/bin/zeek