diff --git a/.cproject b/.cproject
index e2f7de7..95e64ad 100644
--- a/.cproject
+++ b/.cproject
@@ -58,6 +58,7 @@
 				<defs>
 					<def name="CMAKE_BUILD_TYPE" type="STRING" val="${ConfigName}"/>
 				</defs>
+				<undefs/>
 			</storageModule>
 		</cconfiguration>
 		<cconfiguration id="cdt.managedbuild.toolchain.gnu.base.2088633632.342506890">
@@ -283,12 +284,19 @@
 			</target>
 			<target name="VERBOSE=1" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>VERBOSE=1</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="clean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>CMAKE_BUILD_TOOL</buildCommand>
+				<buildArguments>$&lt;cmake4eclipse_dyn&gt;</buildArguments>
+				<buildTarget>clean</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 		</buildTargets>
 	</storageModule>
 </cproject>
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9a7a315..16659c0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -77,6 +77,21 @@ endif()
 ## get conan packages
 ##########################################################
 include(ConanInline)
+conan_check()
+conan_add_remote(NAME minres URL https://artifactory.minres.com/artifactory/api/conan/oss)
+
+# Boost on CentOS 7 quirks: the b2 of conan-center is build against a newer libstdc++ and therefore does not run
+# with the oooooold libs on CentOS 7. Therefore we build our own version of b2 if it is not there
+set(B2_META $ENV{HOME}/.conan/data/b2/4.5.0/_/_/metadata.json)
+if(DEFINED ENV{CONAN_USER_HOME})
+	set(B2_META $ENV{CONAN_USER_HOME}/.conan/data/b2/4.5.0/_/_/metadata.json)
+endif()
+if(NOT EXISTS ${B2_META})
+	conan_cmake_configure(REQUIRES b2/4.5.0)
+	conan_cmake_autodetect(settings)
+	conan_cmake_install(PATH_OR_REFERENCE . BUILD b2 SETTINGS ${settings})
+endif()
+# Boost on CentOS 7 quirks end
 
 set(CONAN_BOOST_OPTIONS
 boost:fPIC=True
@@ -104,14 +119,12 @@ boost:without_timer=True
 boost:without_type_erasure=True
 boost:without_wave=True
 )
-set(CONAN_PACKAGE_LIST fmt/6.1.2 boost/1.75.0 gsl-lite/0.37.0)
+set(CONAN_PACKAGE_LIST fmt/6.1.2 zlib/1.2.11 boost/1.75.0 gsl-lite/0.37.0)
 set(CONAN_PACKAGE_OPTIONS fmt:header_only=True ${CONAN_BOOST_OPTIONS})
 if(NOT DEFINED ENV{SYSTEMC_HOME})
     set(CONAN_PACKAGE_LIST ${CONAN_PACKAGE_LIST} systemc/2.3.3 systemc-cci/1.0.0)
     set(CONAN_PACKAGE_OPTIONS ${CONAN_PACKAGE_OPTIONS} systemc-cci:shared=False)
 endif()
-conan_check()
-conan_add_remote(NAME minres URL https://artifactory.minres.com/artifactory/api/conan/oss)
 conan_cmake_configure(REQUIRES ${CONAN_PACKAGE_LIST}
                       GENERATORS cmake_find_package
                       OPTIONS ${CONAN_PACKAGE_OPTIONS}
@@ -119,6 +132,7 @@ conan_cmake_configure(REQUIRES ${CONAN_PACKAGE_LIST}
 
 conan_install()
 find_package(fmt)
+find_package(ZLIB)
 find_package(gsl-lite)
 find_package(SystemCLanguage)
 find_package(systemc-cci)