I have a c++ application that requires libsigc++, I can’t find in on the official gcc image.
Is it included in the official gcc image?
How can I find out more about this image,
i. like what distro is is built on, so I can see about installing this lib.
ii. The source for libsigc++ requires configure to build the make file. How can I install the autotools?
No idea, I’m not responsible for any of these images. In general, you should find in every readme a link to a Dockerfile (I never use an image where this link is missing) where you see what it is based on. Then you can go this image and open its Dockerfile, and so on.