Got this when we tried that command:

sudo apt-get install curl
Reading package lists... Done
Building dependency tree
Reading state information... Done
curl is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 353 not upgraded.

ldd output is the same btw

sudo apt-get install libcurl4-openssl-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libcurl4-openssl-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 353 not upgraded.