OpenSC packages provided by Homebrew are substantially different than packages provided from official site.

[stefanlasiewski]

Output of brew config

HOMEBREW_VERSION: 4.4.20
ORIGIN: https://github.com/Homebrew/brew
HEAD: 47ef1a3b0b742a78be35c016df6a0279d6035ebb
Last commit: 3 days ago
Branch: stable
Core tap JSON: 06 Feb 01:48 UTC
Core cask tap JSON: 06 Feb 01:48 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_DISPLAY: /private/tmp/com.apple.launchd.He0oDa4mii/org.xquartz:0
HOMEBREW_EDITOR: vim
HOMEBREW_MAKE_JOBS: 16
Homebrew Ruby: 3.3.7 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.3.7/bin/ruby
CPU: 16-core 64-bit arm_palma
Clang: 16.0.0 build 1600
Git: 2.48.1 => /opt/homebrew/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 14.7.2-arm64
CLT: 16.2.0.0.1.1733547573
Xcode: N/A
Rosetta 2: false

Output of brew doctor

% brew doctor       
Your system is ready to brew.

Description of issue

I have been unable to get the Homebrew version of OpenSC working on MacOS due to the agent refused operation that most of us are experienced with (I know how to fix it). OpenSC works fine if I install the package provided at https://github.com/OpenSC/OpenSC/ . I was hoping to use the Homebrew version for the automatic updates.

While troubleshooting the differences between the Hombrew version and the upstream versions, I notice that the packages provided through Homebrew have substantially different file sizes compared to the packages provided at https://github.com/OpenSC/OpenSC/ . Why is the Homebrew version different. Shouldn't they be the same?

Official packages of 0.26.1:

% ll /Library/OpenSC/lib/
-rwxr-xr-x  1 root  wheel  12896416 Jan 14 06:48 libopensc.12.dylib
lrwxr-xr-x  1 root  wheel        18 Feb  6 11:54 libopensc.dylib -> libopensc.12.dylib
-rwxr-xr-x  1 root  wheel   7203872 Jan 14 06:48 libsmm-local.12.so
lrwxr-xr-x  1 root  wheel        18 Feb  6 11:54 libsmm-local.so -> libsmm-local.12.so
lrwxr-xr-x  1 root  wheel        16 Feb  6 11:54 onepin-opensc-pkcs11.so -> opensc-pkcs11.so
drwxr-xr-x  3 root  wheel        96 Jan 14 06:45 opensc-pkcs11.bundle
-rwxr-xr-x  1 root  wheel   7676240 Jan 14 06:48 opensc-pkcs11.so
drwxr-xr-x  5 root  wheel       160 Feb  6 11:54 pkcs11
-rwxr-xr-x  1 root  wheel   6959424 Jan 14 06:48 pkcs11-spy.so
drwxr-xr-x  3 root  wheel        96 Jan 14 06:45 pkgconfig

Homebrew packages of 0.26.1:

% ll /opt/homebrew/Cellar/opensc/0.26.1/lib
-r--r--r--  1 user  admin  1680208 Jan 14 19:29 libopensc.12.dylib
-r--r--r--  1 user  admin  3251024 Jan 14 07:16 libopensc.a
lrwxr-xr-x  1 user  admin       18 Jan 14 07:16 libopensc.dylib -> libopensc.12.dylib
-r--r--r--  1 user  admin   125984 Jan 14 19:29 libsmm-local.12.so
lrwxr-xr-x  1 user  admin       18 Jan 14 07:16 libsmm-local.so -> libsmm-local.12.so
lrwxr-xr-x  1 user  admin       16 Jan 14 07:16 onepin-opensc-pkcs11.so -> opensc-pkcs11.so
-r--r--r--  1 user  admin   266160 Jan 14 19:29 opensc-pkcs11.so
drwxr-xr-x  5 user  admin      160 Jan 14 07:16 pkcs11
-r--r--r--  1 user  admin   128784 Jan 14 19:29 pkcs11-spy.so
drwxr-xr-x  3 user  admin       96 Jan 14 19:29 pkgconfig

[Bo98]

Most open source package distributors, including us, will build our own versions from source so it's rare for sizes to exactly align. You can install OpenSC from various Linux distrubitions and you'll probably get a different size for each one.

In terms of the large disparity, upstream likely statically link their dependencies while we do not. With Homebrew you'll have one shared install of OpenSSL that all formulae can use while upstream will bundle their own in their binaries, which will massively increase their binary size.