t-b
- The `#include <limits>` fix makes sense
- For `my_bool` I suggest to use what TangoDatabase uses in https://gitlab.com/tango-controls/TangoDatabase/-/blob/main/common.h#L12.

Regarding Tango::string_free, this is part of cppTango since 9.3.3. Are you required to use an old version like that? Latest 9.3.x is 9.3.6, and on the modern branch we have 9.4.2.

cmake CMAKE_INSTALL_PREFIX='/usr/local' TSD_JAVA_PATH='/lib/jvm/java-11-openjdk-amd64/bin' MYSQL_HOST='localhost' MYSQL_ADMIN='carolinii' MYSQL_ADMIN_PASSWD='tango' TDB_DATABASE_SCHEMA='ON' ..

- C++
– CMake: version 3.22.1
– Target platform: Linux 64-bit
– C++ Compiler: GNU with version 11.3.0
– C Compiler: GNU with version 11.3.0
– Build type: Release
– Environment: TANGO_HOST=
– Found OMNIORB_VERSION=4.2.5
– Check if cppzmq is present and recent enough: TRUE
– Check if libzmq version is >= 4.0.5: TRUE
– Using /home/carolinii/Projects/tango/tango-9.4.2/lib/cpp/cppapi/include as build-time include directory
Using IDL=/home/carolinii/Projects/tango/tango-9.4.2/lib/idl
– Java
– IDL
– Database
– Using bundled libtango
– No MySQL client program specified using -DMYSQL - default is /usr/bin/mariadb

CMake Warning at cppserver/database/configure/CMakeLists.txt:104 (message):
DB Connection check failed with: ERROR 1045 (28000): Access denied for user 'carolinii'@'localhost' (using password: NO)

Call Stack (most recent call first):
cppserver/database/CMakeLists.txt:17 (include)

CMake Warning at cppserver/database/configure/CMakeLists.txt:115 (message):
DB version check failed with: ERROR 1045 (28000): Access denied for user
'carolinii'@'localhost' (using password: NO)

Call Stack (most recent call first):
cppserver/database/CMakeLists.txt:17 (include)
– Starter
– Using bundled libtango
– Access Control
– Test
– Using bundled libtango
– Using bundled libtango
– Summary:

Configuration (TangoSourceDistribution):                                                                                                                                                                                       Source code location: /home/carolinii/Projects/tango/tango-9.4.2
Version: 9.4.2
Compiler: C++ GNU 11.3.0
                                                                                                                     OMNIORB PATH: /usr
OMNIORB VERSION: 4.2.5
                                                                                                                     ZMQ PATH: /usr
ZMQ VERSION: 4.3.4
                                                                                                                   JAVA PATH: /usr/bin/java
JAVA VERSION: 11.0.19
                                                                                                                    Database:                                                                                                                                                                                                                                    DB NAME: tango
CLIENT LIB: /usr/lib/x86_64-linux-gnu/libmariadb.so
CLIENT VERSION: 3.3.4
SERVER VERSION: unknown
CONNECTION: FALSE
                                                                                                                     Build:                                                                                                                                                                                                                                           libraries:              ON
java application :      ON
access control server:  OFF
database server:        ON
database schema create: OFF
                                                                                                                       Please check whether the configuration I detected matches what you would like to have.
– Configuring done
– Generating done
– Build files have been written to: /home/carolinii/Projects/tango/tango-9.4.2/build