From 88461e56eeb049bdbfaae699961f36f5c6210ee0 Mon Sep 17 00:00:00 2001
From: tannevaled <tannevaled@users.noreply.github.com>
Date: Fri, 29 May 2026 17:02:34 +0200
Subject: [PATCH] fix(gnu.org/gcc): add Debian-style multi-arch triplet
 symlinks on Linux
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Many Linux build systems (autoconf, distutils, setuptools, pip build
backends, scikit-build, etc.) probe for the architecture-prefixed
binary names — `x86_64-linux-gnu-gcc`, `aarch64-linux-gnu-g++`, etc. —
before falling back to plain `gcc`. Without these symlinks, pip-install
of any Python C-extension wheel fails on Ubuntu/Debian rootfs even
when `gcc` IS on PATH.

Addresses one of the two complaints in pkgxdev/pantry#8423.

The other issue raised there (`stdlib.h: No such file or directory`
on Fedora) is the libc-headers gap — pkgx's gcc relies on the system
glibc-devel for /usr/include/stdlib.h etc. That requires a separate
gnu.org/glibc bottle + runtime dep wiring; see bklibcvenv-pattern
follow-ups (pkgxdev/pantry#12968 and brewkit#348).
---
 projects/gnu.org/gcc/package.yml | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/projects/gnu.org/gcc/package.yml b/projects/gnu.org/gcc/package.yml
index cd666b24a4..1426082b22 100644
--- a/projects/gnu.org/gcc/package.yml
+++ b/projects/gnu.org/gcc/package.yml
@@ -1,4 +1,3 @@
-distributable:
   url: https://ftp.gnu.org/gnu/gcc/gcc-{{version.raw}}/gcc-{{ version.raw }}.tar.xz
   strip-components: 1
 
@@ -76,6 +75,23 @@ build:
         ln -sf ../../../binutils/v\*/bin/ranlib ranlib
       working-directory: ${{prefix}}/bin
 
+    # Many Linux build systems (autoconf, distutils/setuptools, pip
+    # build backends) probe for the Debian-style multi-arch triplet
+    # binary names ($arch-linux-gnu-gcc, etc.) before falling back to
+    # plain `gcc`. Without these, pip-install of C-extension Python
+    # wheels fails on Ubuntu/Debian rootfs even when gcc IS on PATH.
+    # See pkgxdev/pantry#8423.
+    - run: |
+        case "{{hw.arch}}" in
+          x86-64)  TRIPLET=x86_64-linux-gnu ;;
+          aarch64) TRIPLET=aarch64-linux-gnu ;;
+        esac
+        for tool in gcc g++ cpp c++ ar nm ranlib; do
+          [ -e "$tool" ] && ln -sf "$tool" "$TRIPLET-$tool"
+        done
+      if: linux
+      working-directory: ${{prefix}}/bin
+
     # .la archives aren't relocatable
     - run: find . -name '*.la' -exec rm {} \;
       working-directory: ${{prefix}}/lib