Source: zlib Version: 1:1.3.dfsg+really1.3.2-3 Tags: patch User: [email protected] Usertags: cross-satisfiability
zlib cannot be cross built from source for multilib-enabled architectures unless adding the nobiarch build profile, because the dependency on gcc-multilib is not satisfiable. As we do not have a -for-host variant for this package, we can depend on gcc-multilib-TRIPLET instead. This is a bit verbose, but we're not likely to add more multilib architectures, so that feels like a sane cost. I'm attaching a suitable patch. This patch is supposed to establish a baseline of cross build support. Once it is in, we may consider moving away from gcc-multilib. For instance in a build for i386, we should be able to call "x86_64-linux-gnu-gcc" instead of "i686-linux-gnu-gcc -m64" if we depend on "gcc-x86-64-linux-gnu [i386] <!nobiarch>". It is equally verbose, but removes one multilib user. Helmut
diff -Nru zlib-1.3.dfsg+really1.3.2/debian/changelog zlib-1.3.dfsg+really1.3.2/debian/changelog --- zlib-1.3.dfsg+really1.3.2/debian/changelog 2026-04-01 23:50:49.000000000 +0200 +++ zlib-1.3.dfsg+really1.3.2/debian/changelog 2026-07-01 14:49:22.000000000 +0200 @@ -1,3 +1,10 @@ +zlib (1:1.3.dfsg+really1.3.2-3.1) UNRELEASED; urgency=medium + + * Non-maintainer upload. + * Fix cross building for multilib architectures. (Closes: #-1) + + -- Helmut Grohne <[email protected]> Wed, 01 Jul 2026 14:49:22 +0200 + zlib (1:1.3.dfsg+really1.3.2-3) unstable; urgency=low * Suppress crcvx to fix building of minizip on s390 with patch diff -Nru zlib-1.3.dfsg+really1.3.2/debian/control zlib-1.3.dfsg+really1.3.2/debian/control --- zlib-1.3.dfsg+really1.3.2/debian/control 2026-03-29 23:52:20.000000000 +0200 +++ zlib-1.3.dfsg+really1.3.2/debian/control 2026-07-01 14:49:22.000000000 +0200 @@ -5,7 +5,33 @@ Standards-Version: 4.6.1 Homepage: http://zlib.net/ X-DH-Compat: 14 -Build-Depends: dpkg-dev (>= 1.22.5), debhelper (>= 13), gcc-multilib [amd64 i386 kfreebsd-amd64 mips mipsel powerpc ppc64 s390 sparc mipsn32 mipsn32el mipsr6 mipsr6el mipsn32r6 mipsn32r6el mips64 mips64el mips64r6 mips64r6el x32] <!nobiarch>, dpkg-dev (>= 1.16.1), autoconf +Build-Depends: + dpkg-dev (>= 1.22.5), + debhelper (>= 13), + gcc-multilib [amd64 i386 kfreebsd-amd64 mips mipsel powerpc ppc64 s390 sparc mipsn32 mipsn32el mipsr6 mipsr6el mipsn32r6 mipsn32r6el mips64 mips64el mips64r6 mips64r6el x32] <!cross !nobiarch>, + gcc-multilib-x86-64-linux-gnu [amd64] <cross !nobiarch>, + gcc-multilib-x86-64-kfreebsd-gnu [kfreebsd-amd64] <cross !nobiarch>, + gcc-multilib-i686-linux-gnu [i386] <cross !nobiarch>, + gcc-multilib-mips-linux-gnu [mips] <cross !nobiarch>, + gcc-multilib-mipsel-linux-gnu [mipsel] <cross !nobiarch>, + gcc-multilib-powerpc-linux-gnu [powerpc] <cross !nobiarch>, + gcc-multilib-powerpc64-linux-gnu [powerpc64] <cross !nobiarch>, + gcc-multilib-s390-linux-gnu [s390] <cross !nobiarch>, + gcc-multilib-sparc-linux-gnu [sparc] <cross !nobiarch>, + gcc-multilib-mips64-linux-gnuabin32 [mipsn32] <cross !nobiarch>, + gcc-multilib-mips64el-linux-gnuabin32 [mipsn32el] <cross !nobiarch>, + gcc-multilib-mips64el-linux-gnuabin32 [mipsn32el] <cross !nobiarch>, + gcc-multilib-mipsisa32r6-linux-gnu [mipsr6] <cross !nobiarch>, + gcc-multilib-mipsisa32r6el-linux-gnu [mipsr6el] <cross !nobiarch>, + gcc-multilib-mipsisa64r6-linux-gnuabin32 [mipsn32r6] <cross !nobiarch>, + gcc-multilib-mipsisa64r6el-linux-gnuabin32 [mipsn32r6el] <cross !nobiarch>, + gcc-multilib-mips64-linux-gnuabi64 [mips64] <cross !nobiarch>, + gcc-multilib-mips64el-linux-gnuabi64 [mips64el] <cross !nobiarch>, + gcc-multilib-mipsisa64r6-linux-gnuabi64 [mips64r6] <cross !nobiarch>, + gcc-multilib-mipsisa64r6el-linux-gnuabi64 [mips64r6el] <cross !nobiarch>, + gcc-multilib-x86-64-linux-gnux32 [x32] <cross !nobiarch>, + dpkg-dev (>= 1.16.1), + autoconf Package: zlib1g Architecture: any
