poco: make cmake packages relocatable

Before the path to the dependencies was hard coded into the generated
PocoConfig.cmake file. This causes issues with sstate.

This change overrides the libraries with just the library names and thus
let's the linker take care of finding them.
Signed-off-by: Pascal Bach <pascal.bach@siemens.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/poco/poco_1.7.8.bb

@@ -21,6 +21,7 @@ SRC_URI = " \
 S = "${WORKDIR}/git"
 
 EXTRA_OECMAKE = "-DCMAKE_BUILD_TYPE=RelWithDebInfo -DPOCO_UNBUNDLED=ON \
+                  -DZLIB_LIBRARY_RELEASE:STRING=z -DPCRE_LIBRARY:STRING=pcre \
                  ${@bb.utils.contains('PTEST_ENABLED', '1', '-DENABLE_TESTS=ON ', '', d)}"
 
 # For the native build we want to use the bundled version
@@ -34,16 +35,16 @@ EXTRA_OECMAKE_append = " -DCMAKE_SKIP_RPATH=ON"
 # these don't have dependencies outside oe-core
 PACKAGECONFIG ??= "XML JSON MongoDB PDF Util Net NetSSL Crypto Data DataSQLite Zip"
 
-PACKAGECONFIG[XML] = "-DENABLE_XML=ON,-DENABLE_XML=OFF,expat"
+PACKAGECONFIG[XML] = "-DENABLE_XML=ON -DEXPAT_LIBRARY:STRING=expat,-DENABLE_XML=OFF,expat"
 PACKAGECONFIG[JSON] = "-DENABLE_JSON=ON,-DENABLE_JSON=OFF"
 PACKAGECONFIG[MongoDB] = "-DENABLE_MONGODB=ON,-DENABLE_MONGODB=OFF"
 PACKAGECONFIG[PDF] = "-DENABLE_PDF=ON,-DENABLE_PDF=OFF,zlib"
 PACKAGECONFIG[Util] = "-DENABLE_UTIL=ON,-DENABLE_UTIL=OFF"
 PACKAGECONFIG[Net] = "-DENABLE_NET=ON,-DENABLE_NET=OFF"
-PACKAGECONFIG[NetSSL] = "-DENABLE_NETSSL=ON,-DENABLE_NETSSL=OFF,openssl"
-PACKAGECONFIG[Crypto] = "-DENABLE_CRYPTO=ON,-DENABLE_CRYPTO=OFF,openssl"
+PACKAGECONFIG[NetSSL] = "-DENABLE_NETSSL=ON -DOPENSSL_SSL_LIBRARY:STRING=ssl -DOPENSSL_CRYPTO_LIBRARY:STRING=crypto,-DENABLE_NETSSL=OFF,openssl"
+PACKAGECONFIG[Crypto] = "-DENABLE_CRYPTO=ON -DOPENSSL_SSL_LIBRARY:STRING=ssl -DOPENSSL_CRYPTO_LIBRARY:STRING=crypto,-DENABLE_CRYPTO=OFF,openssl"
 PACKAGECONFIG[Data] = "-DENABLE_DATA=ON,-DENABLE_DATA=OFF"
-PACKAGECONFIG[DataSQLite] = "-DENABLE_DATA_SQLITE=ON,-DENABLE_DATA_SQLITE=OFF,sqlite3"
+PACKAGECONFIG[DataSQLite] = "-DENABLE_DATA_SQLITE=ON -DSQLITE3_LIBRARY:STRING=sqlite3,-DENABLE_DATA_SQLITE=OFF,sqlite3"
 PACKAGECONFIG[Zip] = "-DENABLE_ZIP=ON,-DENABLE_ZIP=OFF"
 
 # Additional components not build by default,
@@ -51,7 +52,7 @@ PACKAGECONFIG[Zip] = "-DENABLE_ZIP=ON,-DENABLE_ZIP=OFF"
 # or they don't work on all architectures
 PACKAGECONFIG[mod_poco] = "-DENABLE_APACHECONNECTOR=ON,-DENABLE_APACHECONNECTOR=OFF,apr apache2"
 PACKAGECONFIG[CppParser] = "-DENABLE_CPPPARSER=ON,-DENABLE_CPPPARSER=OFF"
-PACKAGECONFIG[DataMySQL] = "-DENABLE_DATA_MYSQL=ON,-DENABLE_DATA_MYSQL=OFF,mariadb"
+PACKAGECONFIG[DataMySQL] = "-DENABLE_DATA_MYSQL=ON -DMYSQL_LIB:STRING=mysqlclient_r,-DENABLE_DATA_MYSQL=OFF,mariadb"
 PACKAGECONFIG[DataODBC] = "-DENABLE_DATA_ODBC=ON,-DENABLE_DATA_ODBC=OFF,libiodbc"
 PACKAGECONFIG[PageCompiler] = "-DENABLE_PAGECOMPILER=ON,-DENABLE_PAGECOMPILER=OFF"
 PACKAGECONFIG[PageCompilerFile2Page] = "-DENABLE_PAGECOMPILER_FILE2PAGE=ON,-DENABLE_PAGECOMPILER_FILE2PAGE=OFF"