Source: libfiu Version: 1.2-4 Tags: patch User: [email protected] Usertags: ftcbfs
libfiu fails to cross build from source for multiple reasons. The immediate failure arises from trying to use ldd to determine the libc soname. ldd operates by running the target object and that's something we cannot do during cross compilation. I propose inspecting the object using objdump instead. Once that is resolved, the Python stuff is being built for the build architecture as no cross compilation settings are passed. The easiest way of doing this - using dh_auto_* things with the pybuild buildsystem - fixes this while also reducing the rules file. Last but not least, make install computes compiler flags depending on the compiler and since dh_auto_install does not pass cross tools, make install tries to rebuild everything as it perceives a change in flags. We may simply export cross tools for all targets. You'll find all of the mentioned problems addressed in the attached patch. Please consider applying it. Helmut
diff -Nru libfiu-1.2/debian/changelog libfiu-1.2/debian/changelog --- libfiu-1.2/debian/changelog 2025-09-10 02:05:31.000000000 +0200 +++ libfiu-1.2/debian/changelog 2025-09-22 11:52:48.000000000 +0200 @@ -1,3 +1,13 @@ +libfiu (1.2-4.1) UNRELEASED; urgency=medium + + * Non-maintainer upload. + * Fix FTCBFS: (Closes: #-1) + + cross.patch: Use objdump to determine the libc soname. + + Let dh_auto_* pass cross stuff for Python. + + Use host tools for make install. + + -- Helmut Grohne <[email protected]> Mon, 22 Sep 2025 11:52:48 +0200 + libfiu (1.2-4) unstable; urgency=medium * Apply an upstream patch to fix FTBFS with GCC-15. (Closes: #1097184) diff -Nru libfiu-1.2/debian/patches/cross.patch libfiu-1.2/debian/patches/cross.patch --- libfiu-1.2/debian/patches/cross.patch 1970-01-01 01:00:00.000000000 +0100 +++ libfiu-1.2/debian/patches/cross.patch 2025-09-22 11:52:48.000000000 +0200 @@ -0,0 +1,20 @@ +--- libfiu-1.2.orig/preload/posix/Makefile ++++ libfiu-1.2/preload/posix/Makefile +@@ -23,6 +23,7 @@ + # install utility, we assume it's GNU/BSD compatible + INSTALL=install + ++OBJDUMP ?= objdump + + MODS = $(sort $(wildcard modules/*.mod)) + GEN_C = $(addsuffix .c,$(MODS)) +@@ -87,7 +88,8 @@ + # --as-needed) might not link it against libc. + build-libcsoname: + @$(CC) build-libccheck.c -lc -shared -fPIC -o build-libccheck.so +- @ldd ./build-libccheck.so | grep libc.so | awk '{ print $$1 }' > $@ ++ @$(OBJDUMP) -p ./build-libccheck.so | \ ++ sed -n 's/^\s*NEEDED\s\+\(libc\.so\)/\1/p' > $@ + @rm build-libccheck.so + @test "`cat $@`" != "" || \ + (echo "Error finding soname, please report"; rm $@; exit 1) diff -Nru libfiu-1.2/debian/patches/series libfiu-1.2/debian/patches/series --- libfiu-1.2/debian/patches/series 2025-09-10 02:05:31.000000000 +0200 +++ libfiu-1.2/debian/patches/series 2025-09-22 11:52:48.000000000 +0200 @@ -1 +1,2 @@ 0001-tests-generated-Disable-optimizations-to-avoid-false.patch +cross.patch diff -Nru libfiu-1.2/debian/rules libfiu-1.2/debian/rules --- libfiu-1.2/debian/rules 2025-09-10 02:05:31.000000000 +0200 +++ libfiu-1.2/debian/rules 2025-09-22 11:52:48.000000000 +0200 @@ -3,10 +3,12 @@ DOCS = $(patsubst %.rst,%.html, $(wildcard doc/*.rst)) PYTHON_VERSIONS := $(shell py3versions -sv) PYTHON_VERSION_DEFAULT := $(shell py3versions -dv) +DPKG_EXPORT_BUILDTOOLS = 1 DPKG_EXPORT_BUILDFLAGS = 1 export DEB_BUILD_MAINT_OPTIONS = hardening=+all +include /usr/share/dpkg/buildtools.mk include /usr/share/dpkg/buildflags.mk %: @@ -21,10 +23,7 @@ override_dh_auto_build: $(DOCS) dh_auto_build -- V=1 $(shell dpkg-buildflags --export=cmdline) - cd bindings/python && \ - set -e && for i in $(PYTHON_VERSIONS); do \ - python$$i ./setup.py build; \ - done + dh_auto_build --buildsystem=pybuild --sourcedirectory=bindings/python override_dh_auto_test: ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS))) @@ -40,10 +39,8 @@ override_dh_auto_install: make install PREFIX=$(CURDIR)/debian/tmp/usr DESTDIR=/usr PLIBPATH=/usr/lib/fiu V=1 - cd bindings/python && \ - set -e && for i in $(PYTHON_VERSIONS); do \ - python$$i ./setup.py install --root=$(CURDIR)/debian/python3-fiu --no-compile -O0 --install-layout=deb; \ - done + dh_auto_install --buildsystem=pybuild --sourcedirectory=bindings/python -- \ + --install-args "--root=$(CURDIR)/debian/python3-fiu --no-compile -O0 --install-layout=deb" override_dh_compress: dh_compress -X.rst
