Compatibility Issue with Protobuf and CMake Version in install.sh

[libalis]

Description:
When running icsc/install.sh, the script fails during the Protobuf download and build process due to an incompatibility with the CMake version on the system. The error message encountered is as follows:

Using ICSC_HOME = /home/robert/Downloads/sc_tools
GCC_INSTALL_PREFIX = /usr
Downloading and building Protobuf/LLVM at /home/robert/Downloads/sc_tools/build_deps...
--2025-05-04 14:06:13--  https://github.com/protocolbuffers/protobuf/archive/v3.19.4.tar.gz
CA-Zertifikat »/etc/ssl/certs/ca-certificates.crt« wurde geladen
Auflösen des Hostnamens github.com (github.com)… 140.82.121.3
Verbindungsaufbau zu github.com (github.com)|140.82.121.3|:443 … verbunden.
HTTP-Anforderung gesendet, auf Antwort wird gewartet … 302 Found
Platz: https://codeload.github.com/protocolbuffers/protobuf/tar.gz/refs/tags/v3.19.4 [folgend]
--2025-05-04 14:06:13--  https://codeload.github.com/protocolbuffers/protobuf/tar.gz/refs/tags/v3.19.4
Auflösen des Hostnamens codeload.github.com (codeload.github.com)… 140.82.121.10
Verbindungsaufbau zu codeload.github.com (codeload.github.com)|140.82.121.10|:443 … verbunden.
HTTP-Anforderung gesendet, auf Antwort wird gewartet … 200 OK
Länge: 5293745 (5,0M) [application/x-gzip]
Wird in »v3.19.4.tar.gz« gespeichert.

v3.19.4.tar.gz                      100%[=================================================================>]   5,05M  5,82MB/s    in 0,9s    

»Last-modified«-Kopfzeile fehlt -- Zeitstempel abgeschaltet.
2025-05-04 14:06:14 (5,82 MB/s) - »v3.19.4.tar.gz« gespeichert [5293745/5293745]

CMake Error at CMakeLists.txt:2 (cmake_minimum_required):
  Compatibility with CMake < 3.5 has been removed from CMake.                                                                                 
                                                                                                                                              
  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax                                                                  
  to tell CMake that the project requires at least <min> but has been updated                                                                 
  to work with policies introduced by <max> or earlier.                                                                                       
                                                                                                                                              
  Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.                                                                       
                                                                                                                                              
                                                                                                                                              
-- Configuring incomplete, errors occurred!

Suggested Solution:

• Update Protobuf version: The script currently downloads Protobuf v3.19.4, consider updating the Protobuf version in the script to a more recent release.
• Ensure CMake version compatibility: Modify the CMakeLists.txt or the script to specify that the minimum required CMake version should be >= 3.5. Alternatively, include a flag like -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to ensure compatibility for users with older versions of CMake.

Tested CMake Versions:

• 3.31
• 4.0

[libalis]

Works with Ubuntu LTS in Distrobox.