Questions about dependencies.
s1eve-mcdichae1 opened this issue · 2 comments
(Apologies for the probably naive questions...I'm self-taught which means there's a lot I've missed on the way to where I am.)
I'm trying to minimize the number of dependency packages we need to install in our RetroPie script.
TheWiki says, in Linux:
sudo apt install build-essential libpng-dev libjpeg-dev make cmake cmake-data git libsdl2-dev libsdl2-doc libsdl2-gfx-dev libsdl2-gfx-doc libsdl2-image-dev libsdl2-mixer-dev libsdl2-net-dev libsdl2-ttf-dev
A couple of these are covered by our distro, and surely the -docs aren't really necessary right? When I build the makefikes with cmake I see the report mentions a few of the rest:
--Found SDL2: /usr/lib/arm-linux-gnueabihf/libSDL2main.a;/usr/lib/arm-linux-gnueabihf/libSDL2.so;-lpthread
-- Found SDL2_mixer: /usr/lib/arm-linux-gnueabihf/libSDL2_mixer.so (found version "2.0.4")
-- Found SDL2_image: /usr/lib/arm-linux-gnueabihf/libSDL2_image.so (found version "2.0.4")
-- Found ZLIB: /usr/lib/arm-linux-gnueabihf/libz.so (found version "1.2.11")
-- Found PNG: /usr/lib/arm-linux-gnueabihf/libpng.so (found version "1.6.36")
-- Found JPEG: /usr/lib/arm-linux-gnueabihf/libjpeg.so (found version "62")
It doesn't say anything about libsdl2-gfx-dev libsdl2-net-dev libsdl2-ttf-dev. Are these really necessary? I've built and run this without ever installing libsdl2-gfx-dev, for example; I did it again with the package and the binaries were identical as reported by diff so unless it makes a difference at runtime I don't think this one is needed? (Or, is this dep just being filled by something else I have on my system, but something is still needed regardless? I do see libsdl2-gfx-1.0-0 installed as a dep of something else on my system, for example.)
I didn't test anything without the ttf and net packages because they were already on my system from other installations in the past, I only ask about them because I didn't see them mentioned in the build report.
However it does also mention ZLIB, which I do have both zlib1g and zlib1g-dev on my system already. Do I need to make one of these a dep for the install, as well?
libsdl2-doc libsdl2-gfx-dev libsdl2-gfx-doc libsdl2-net-dev libsdl2-ttf-dev aren't needed. I'll fix wiki.
zlib-dev is usually pulled in by libpng-dev, but you can add it to deps, yeah
Oh yeah I see it is dep of libpng-dev so I don't need it explicit.
Thanks!