pin cross 0.2.5 image to lower glibc floor for Linux packages (fixes #1256)

Author: GyulyVGC

CHANGELOG.md

@@ -22,6 +22,7 @@ All Sniffnet releases with the relative changes are documented in this file.
 - Use a thread pool for reverse DNS lookups to avoid stalling hosts resolutions (fixes [#1257](https://github.com/GyulyVGC/sniffnet/issues/1257))
 - Fix unseen hosts and services not appearing dimmed in thumbnail mode (fixes [#1142](https://github.com/GyulyVGC/sniffnet/issues/1142))
 - Fix `X-AppImage-Version` field in Linux AppImage metadata to correctly reflect the app version ([#1174](https://github.com/GyulyVGC/sniffnet/pull/1174) — fixes [#1003](https://github.com/GyulyVGC/sniffnet/issues/1003))
+- Fix Linux packages failing to run on distros with `glibc` older than 2.39 (fixes [#1256](https://github.com/GyulyVGC/sniffnet/issues/1256))
 
 ## [1.5.0] - 2026-04-14
 - Show which apps and programs are generating network traffic ([#1056](https://github.com/GyulyVGC/sniffnet/pull/1056) — fixes [#170](https://github.com/GyulyVGC/sniffnet/issues/170))

Cross.toml

@@ -1,35 +1,29 @@
 [target.x86_64-unknown-linux-gnu]
+# pin the 0.2.5 image (glibc 2.23) to keep releases running on older distros (fixes #1256):
+# cross's `main` images moved to Ubuntu 24.04 (glibc 2.39)
+image = "ghcr.io/cross-rs/x86_64-unknown-linux-gnu:0.2.5"
 pre-build = [
     "dpkg --add-architecture amd64",
-    "apt update -y && apt install -y libpcap-dev:amd64 libasound2-dev:amd64 libfontconfig1-dev:amd64",
-    # aws-lc-sys's custom build script errors with this:
-    # Your compiler (cc) is not supported due to a memcmp related bug reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189. We strongly recommend against using this compiler.
-    "apt-get -y install gcc-10 && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 60"
+    "apt update -y && apt install -y libpcap0.8-dev:amd64 libasound2-dev:amd64 libfontconfig1-dev:amd64"
 ]
 
 [target.i686-unknown-linux-gnu]
+image = "ghcr.io/cross-rs/i686-unknown-linux-gnu:0.2.5"
 pre-build = [
     "dpkg --add-architecture i386",
-    "apt update -y && apt install -y libpcap-dev:i386 libasound2-dev:i386 libfontconfig1-dev:i386",
-    # aws-lc-sys's custom build script errors with this:
-    # Your compiler (cc) is not supported due to a memcmp related bug reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189. We strongly recommend against using this compiler.
-    "apt-get -y install gcc-10 && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 60"
+    "apt update -y && apt install -y libpcap0.8-dev:i386 libasound2-dev:i386 libfontconfig1-dev:i386"
 ]
 
 [target.aarch64-unknown-linux-gnu]
+image = "ghcr.io/cross-rs/aarch64-unknown-linux-gnu:0.2.5"
 pre-build = [
     "dpkg --add-architecture arm64",
-    "apt update -y && apt install -y libpcap-dev:arm64 libasound2-dev:arm64 libfontconfig1-dev:arm64",
-    # aws-lc-sys's custom build script errors with this:
-    # Your compiler (cc) is not supported due to a memcmp related bug reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189. We strongly recommend against using this compiler.
-    "apt-get -y install gcc-10 && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 60"
+    "apt update -y && apt install -y libpcap0.8-dev:arm64 libasound2-dev:arm64 libfontconfig1-dev:arm64"
 ]
 
 [target.armv7-unknown-linux-gnueabihf]
+image = "ghcr.io/cross-rs/armv7-unknown-linux-gnueabihf:0.2.5"
 pre-build = [
     "dpkg --add-architecture armhf",
-    "apt update -y && apt install -y libpcap-dev:armhf libasound2-dev:armhf libfontconfig1-dev:armhf",
-    # aws-lc-sys's custom build script errors with this:
-    # Your compiler (cc) is not supported due to a memcmp related bug reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189. We strongly recommend against using this compiler.
-    "apt-get -y install gcc-10 && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 60"
-]
+    "apt update -y && apt install -y libpcap0.8-dev:armhf libasound2-dev:armhf libfontconfig1-dev:armhf"
+]