Package: gcc-7 Version: 7-20170226-1 Severity: important I'm unable to install GCC7 on Debian 8/i386 with Experimental enabled. Things worked well under x86_64; the issue seems to be limited to i386.
===================================== A fresh install of Debian 8.7 for i386. The machine is fully patched. The following sources are enabled. The last one, experimental, came from https://wiki.debian.org/DebianExperimental. deb http://ftp.us.debian.org/debian/ jessie main deb-src http://ftp.us.debian.org/debian/ jessie main deb http://security.debian.org/ jessie/updates main contrib deb-src http://security.debian.org/ jessie/updates main contrib deb http://ftp.us.debian.org/debian/ jessie-updates main contrib deb-src http://ftp.us.debian.org/debian/ jessie-updates main contrib deb http://httpredir.debian.org/debian experimental main ===================================== # apt-get -t experimental install gcc-7 g++-7 Reading package lists... Building dependency tree... Reading state information... Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: g++-7 : Depends: libstdc++-7-dev (= 7-20170226-1) but it is not going to be installed Depends: libisl15 (>= 0.15) but it is not installable Depends: libmpfr4 (>= 3.1.3) but 3.1.2-2 is to be installed gcc-7 : Depends: cpp-7 (= 7-20170226-1) but it is not going to be installed Depends: libcc1-0 (>= 7-20170226-1) but it is not going to be installed Depends: binutils (>= 2.27.90.20170221) but 2.25-5 is to be installed Depends: libgcc-7-dev (= 7-20170226-1) but it is not going to be installed Depends: libisl15 (>= 0.15) but it is not installable Depends: libmpfr4 (>= 3.1.3) but 3.1.2-2 is to be installed Depends: libstdc++6 (>= 5) but 4.9.2-10 is to be installed E: Unable to correct problems, you have held broken packages. ===================================== Here is GCC7's information from x86_64. It installed fine on x86_64. The problem appears to be i386. $ apt-cache show gcc-7 Package: gcc-7 Version: 7-20170226-1 Installed-Size: 145900 Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org> Architecture: amd64 Replaces: gccgo-7 (<< 7-20170226-1) Provides: c-compiler Depends: cpp-7 (= 7-20170226-1), gcc-7-base (= 7-20170226-1), libcc1-0 (>= 7-20170226-1), binutils (>= 2.27.90.20170221), libgcc-7-dev (= 7-20170226-1), libc6 (>= 2.14), libgcc1 (>= 1:3.0), libgmp10 (>= 2:5.0.1~), libisl15 (>= 0.15), libmpc3, libmpfr4 (>= 3.1.3), libstdc++6 (>= 5), zlib1g (>= 1:1.1.4) Recommends: libc6-dev (>= 2.13-5) Suggests: gcc-7-multilib, gcc-7-doc (>= 7), gcc-7-locales (>= 7), libgcc1-dbg (>= 1:7-20170226-1), libgomp1-dbg (>= 7-20170226-1), libitm1-dbg (>= 7-20170226-1), libatomic1-dbg (>= 7-20170226-1), libasan4-dbg (>= 7-20170226-1), liblsan0-dbg (>= 7-20170226-1), libtsan0-dbg (>= 7-20170226-1), libubsan0-dbg (>= 7-20170226-1), libcilkrts5-dbg (>= 7-20170226-1), libmpx2-dbg (>= 7-20170226-1), libquadmath0-dbg (>= 7-20170226-1) Description-en: GNU C compiler This is the GNU C compiler, a fairly portable optimizing compiler for C. Description-md5: 394374e688b1afb3af5f419895d29698 Homepage: http://gcc.gnu.org/ Section: devel Priority: optional Filename: pool/main/g/gcc-7/gcc-7_7-20170226-1_amd64.deb Size: 31564834 MD5sum: 137210eb781915b8331db7fc626d83fb SHA256: 002326bacb91b6ad4844231608378da12080bdf2b904d095a1a6527a8c15e564 $ gcc-7 --version gcc-7 (Debian 7-20170226-1) 7.0.1 20170226 (experimental) [trunk revision 245744] Copyright (C) 2017 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.