[Debian-med-packaging] Bug#1126477: libzerg-perl FTCBFS: uses the build architecture compiler as linker

[Helmut Grohne]

Source: libzerg-perl
Version: 1.0.4-9
Tags: patch
User: debian-cross at lists.debian.org
Usertags: ftcbfs

libzerg-perl fails to cross build from source, because debian rules
overrides LD containing a build architecture compiler. It does so to
pass suitable LDFLAGS and queries perl for the linker name.
Unfortunately, that does not consider the host architecture at hand.
Instead, I suggest deferring the task to dpkg's buildtools.mk. Once
doing so, libzerg-perl cross builds successfully.

Helmut
-------------- next part --------------
diff -Nru libzerg-perl-1.0.4/debian/changelog libzerg-perl-1.0.4/debian/changelog
--- libzerg-perl-1.0.4/debian/changelog	2025-11-13 23:04:28.000000000 +0100
+++ libzerg-perl-1.0.4/debian/changelog	2026-01-25 20:17:27.000000000 +0100
@@ -1,3 +1,10 @@
+libzerg-perl (1.0.4-9.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix FTCBFS: Let dpkg's buildtools.mk define LD. (Closes: #-1)
+
+ -- Helmut Grohne <helmut at subdivi.de>  Sun, 25 Jan 2026 20:17:27 +0100
+
 libzerg-perl (1.0.4-9) unstable; urgency=medium
 
   * d/control: build depends on perl-xs-dev. (Closes: #1102791)
diff -Nru libzerg-perl-1.0.4/debian/rules libzerg-perl-1.0.4/debian/rules
--- libzerg-perl-1.0.4/debian/rules	2025-11-13 23:04:28.000000000 +0100
+++ libzerg-perl-1.0.4/debian/rules	2026-01-25 20:17:24.000000000 +0100
@@ -2,6 +2,8 @@
 
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
+include /usr/share/dpkg/buildtools.mk
+
 export CPPFLAGS:=$(shell dpkg-buildflags --get CPPFLAGS)
 export CFLAGS:=$(shell dpkg-buildflags --get CFLAGS)
 export CXXFLAGS:=$(shell dpkg-buildflags --get CXXFLAGS)
@@ -12,7 +14,7 @@
 
 .PHONY: override_dh_auto_configure
 override_dh_auto_configure:
-	dh_auto_configure -- OPTIMIZE="$(CPPFLAGS) $(CFLAGS)" LD="$(shell perl -V::ld:) $(LDFLAGS)"
+	dh_auto_configure -- OPTIMIZE="$(CPPFLAGS) $(CFLAGS)" LD="$(CC) $(LDFLAGS)"
 
 PERLDIR = $(shell echo $(CURDIR)/debian/libzerg-perl/usr/lib/*/perl*/*)
 execute_after_dh_install: