Source: libqalculate Version: 5.13.2-1 Tags: patch User: [email protected] Usertags: ftcbfs
libqalculate fails to cross build from source for amd64 and arm64, because it passes host architecture compiler flags to the build compiler and those two architectures have architecture-specific compiler flags. Simply removing the *_FOR_BUILD overrides fixes the cross build as dpkg-buildflags initializes them in a suitable way. I'm attaching a patch for your convenience. I tracked down why they were added to https://salsa.debian.org/debian/libqalculate/-/commit/098ab41f63b420590b1fd701d16d58c7ff0ec29c and it mentions blhc as a cause. This is an instance where blhc is wrong. While it is important to include compiler flags, this is a build tool and it is not included in a binary package. Here, it is more important to not pass incompatible flags. Helmut
diff -Nru libqalculate-5.13.2/debian/changelog libqalculate-5.13.2/debian/changelog --- libqalculate-5.13.2/debian/changelog 2026-10-12 21:27:15.000000000 +0200 +++ libqalculate-5.13.2/debian/changelog 2026-10-28 15:58:42.000000000 +0100 @@ -1,3 +1,10 @@ +libqalculate (5.13.2-1.1) UNRELEASED; urgency=medium + + * Non-maintainer upload. + * Fix FTCBFS: Do not override _FOR_BUILD flags. (Closes: #-1) + + -- Helmut Grohne <[email protected]> Wed, 28 Oct 2026 15:58:42 +0100 + libqalculate (5.13.2-1) unstable; urgency=medium * New upstream release. diff -Nru libqalculate-5.13.2/debian/rules libqalculate-5.13.2/debian/rules --- libqalculate-5.13.2/debian/rules 2025-11-25 07:49:35.000000000 +0100 +++ libqalculate-5.13.2/debian/rules 2026-10-28 15:58:42.000000000 +0100 @@ -4,10 +4,6 @@ DPKG_EXPORT_BUILDFLAGS = 1 include /usr/share/dpkg/buildflags.mk -export CXXFLAGS_FOR_BUILD=$(CXXFLAGS) -export CPPFLAGS_FOR_BUILD=$(CPPFLAGS) -export LDFLAGS_FOR_BUILD=$(LDFLAGS) - %: dh $@
