Install the SD2-devel package dependencies?

[sphaero]

Just out of curiosity. When I want to install the headers for SDL2, why are there so many dependencies?

$ sudo xbps-install -Su SDL2-devel
[*] Updating repository `https://repo-default.voidlinux.org/current/x86_64-repodata' ...
[*] Updating repository `https://repo-default.voidlinux.org/current/multilib/nonfree/x86_64-repodata' ...
[*] Updating repository `https://repo-default.voidlinux.org/current/nonfree/x86_64-repodata' ...

Name                    Action    Version           New version            Download size
alsa-lib                update    1.2.14_1          1.2.15.1_1             536KB 
alsa-lib-devel          install   -                 1.2.15.1_1             89KB 
expat-devel             install   -                 2.7.3_1                102KB 
dbus-devel              install   -                 1.16.2_2               219KB 
eudev-libudev-devel     install   -                 3.2.14_2               93KB 
libusb-compat           install   -                 0.1.8_1                9449B 
libusb-devel            install   -                 1.0.29_1               85KB 
libusb-compat-devel     install   -                 0.1.8_1                13KB 
fftw-devel              install   -                 3.3.10_3               1865KB 
libogg-devel            install   -                 1.3.6_1                203KB 
libvorbis-devel         install   -                 1.3.7_1                353KB 
libflac-devel           install   -                 1.5.0_1                78KB 
sqlite-devel            install   -                 3.50.4_1               936KB 
opus-devel              install   -                 1.6_1                  4086KB 
mpg123-devel            install   -                 1.33.3_1               50KB 
lame-devel              install   -                 3.100_2                178KB 
libsndfile-devel        install   -                 1.2.2_2                344KB 
libsamplerate-devel     install   -                 0.2.2_1                47KB 
libgbm-devel            install   -                 25.3.3_1               5551B 
libclc21                install   -                 21.1.7_1               15MB 
SPIRV-LLVM-Translator21 install   -                 21.1.1_1               1134KB 
clang21-headers         install   -                 21.1.7_1               2358KB 
libclang-cpp21          install   -                 21.1.7_1               15MB 
mesa-opencl             install   -                 25.3.3_1               10MB 
libpciaccess-devel      install   -                 0.18.1_1               5482B 
libdrm                  update    2.4.124_1         2.4.131_1              165KB 
libdrm-devel            install   -                 2.4.131_1              165KB 
xorgproto               install   -                 2025.1_1               288KB 
xtrans                  install   -                 1.6.0_1                43KB 
libXdmcp-devel          install   -                 1.1.5_1                12KB 
libXau-devel            install   -                 1.0.12_2               9599B 
libxcb-devel            install   -                 1.17.0_1               535KB 
libX11-devel            install   -                 1.8.12_2               1020KB 
libXext-devel           install   -                 1.3.6_1                57KB 
libglvnd-devel          install   -                 1.7.0_1                179KB 
MesaLib-devel           install   -                 25.3.3_1               27KB 
glu                     install   -                 9.0.3_1                161KB 
glu-devel               install   -                 9.0.3_1                4949B 
libXfixes-devel         install   -                 6.0.1_1                12KB 
libXi-devel             install   -                 1.8.2_2                113KB 
libXtst-devel           install   -                 1.2.5_2                27KB 
libasyncns-devel        install   -                 0.8_9                  14KB 
pulseaudio-devel        install   -                 16.1_2                 75KB 
pipewire-devel          install   -                 1.4.9_1                170KB 
sndio-devel             install   -                 1.10.0_1               13KB 
libxkbcommon-devel      install   -                 1.13.1_2               72KB 
libdecor-devel          install   -                 0.2.4_1                4821B 
libffi-devel            install   -                 3.3_2                  39KB 
wayland-devel           install   -                 1.24.0_1               102KB 
wayland-protocols       install   -                 1.47_1                 142KB 
libuuid-devel           install   -                 2.41.2_1               24KB 
libICE-devel            install   -                 1.1.2_1                89KB 
libSM-devel             install   -                 1.2.6_1                47KB 
libXrender-devel        install   -                 0.9.12_1               26KB 
libXcursor-devel        install   -                 1.2.3_2                34KB 
libXScrnSaver-devel     install   -                 1.2.4_1                11KB 
libXrandr-devel         install   -                 1.5.4_1                26KB 
Vulkan-Headers          install   -                 1.4.328.1_1            1928KB 
vulkan-loader-devel     install   -                 1.4.313.0_1            940B 
SDL2-devel              install   -                 2.32.10_1              1270KB 

Size to download:               60MB
Size required on disk:         282MB
Space available on disk:       393GB

It seems to me this isn't necessary, right?

[classabbyamp]

if you look at the pkg-config file for SDL2, it lists a number of libraries that need to be linked against

also, some of those are dependencies of dependencies

[sphaero]

You mean this file? https://github.com/void-linux/void-packages/blob/master/srcpkgs/SDL2/template

I understand the need for all these dependencies when building SDL. However if you install the SDL binaries and want to link against them you'll only need the headers (mostly). The dependencies for the build are of no use. Hence my question why all these dependencies come along.

[classabbyamp]

no, /usr/lib/pkgconfig/sdl2.pc, which includes rhe line:

Libs.private:  -L/usr/lib64 -lpulse -pthread  -lm -l/usr/lib/libX11.so -l/usr/lib/libXext.so -l/usr/lib/libXcursor.so -l/usr/lib/libXi.so -l/usr/lib/libXfixes.so -l/usr/lib/libXrandr.so -l/usr/lib/libXss.so -lwayland-egl -lwayland-client -lwayland-cursor -lEGL -lxkbcommon -ldecor-0

which are the link arguments needed to compile something against SDL2 statically. additionally, the SDL2 headers include some headers from other libraries, like libX11 and some opengl stuff

[sphaero]

Ah, it installs a static library as well? I missed that. Thanks for pointing it out