Package: clang-3.4 Version: 1:3.4.2-4 Severity: serious It seems like the root cause of this might be related to #754963, but I filed a separate issue just in case it isn't.
As noted in my "System Information" below, clang-3.4 Depends on libstdc++-4.9-dev, however when trying to compile a C++ file, this happens: ┌─────────── │$ clang++ -v -o foo foo.cpp │Debian clang version 3.4.2-4 (tags/RELEASE_34/dot2-final) (based on LLVM 3.4.2) │Target: i386-pc-linux-gnu │Thread model: posix │Found candidate GCC installation: /usr/bin/../lib/gcc/i486-linux-gnu/4.8 │Found candidate GCC installation: /usr/bin/../lib/gcc/i486-linux-gnu/4.8.3 │Found candidate GCC installation: /usr/lib/gcc/i486-linux-gnu/4.8 │Found candidate GCC installation: /usr/lib/gcc/i486-linux-gnu/4.8.3 │Selected GCC installation: /usr/bin/../lib/gcc/i486-linux-gnu/4.8 │ "/usr/lib/llvm-3.4/bin/clang" -cc1 -triple i386-pc-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name foo.cpp -mrelocation-model static -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -fuse-init-array -target-cpu pentium4 -target-linker-version 2.24.51.20140617 -v -resource-dir /usr/lib/llvm-3.4/bin/../lib/clang/3.4.2 -internal-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++ -internal-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/i486-linux-gnu -internal-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/backward -internal-isystem /usr/include/clang/3.4.2/include/ -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-3.4/bin/../lib/clang/3.4.2/include -internal-externc-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/include -internal-externc-isystem /usr/include/i386-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdeprecated-macro -fdebug-compilation-dir /home/mccoyj1 -ferror-limit 19 -fmessage-length 113 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -vectorize-slp -o /tmp/foo-50315f.o -x c++ foo.cpp │clang -cc1 version 3.4.2 based upon LLVM 3.4.2 default target i386-pc-linux-gnu │ignoring nonexistent directory "/usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/i486-linux-gnu" │ignoring nonexistent directory "/usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/backward" │ignoring nonexistent directory "/include" │ignoring duplicate directory "/usr/include/clang/3.4.2/include" │#include "..." search starts here: │#include <...> search starts here: │ /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++ │ /usr/include/clang/3.4.2/include │ /usr/local/include │ /usr/bin/../lib/gcc/i486-linux-gnu/4.8/include │ /usr/include/i386-linux-gnu │ /usr/include │End of search list. │foo.cpp:1:10: fatal error: 'algorithm' file not found │#include <algorithm> │ ^ │1 error generated. │$ └─────────── That is, it's only looking for GCC 4.8 paths when it Depends on GCC 4.9 packages. Installing libstdc++-4.8-dev causes the compile to succeed. ┌─────────── │$ clang++ -v -o foo foo.cpp │Debian clang version 3.4.2-4 (tags/RELEASE_34/dot2-final) (based on LLVM 3.4.2) │Target: i386-pc-linux-gnu │Thread model: posix │Found candidate GCC installation: /usr/bin/../lib/gcc/i486-linux-gnu/4.8 │Found candidate GCC installation: /usr/bin/../lib/gcc/i486-linux-gnu/4.8.3 │Found candidate GCC installation: /usr/lib/gcc/i486-linux-gnu/4.8 │Found candidate GCC installation: /usr/lib/gcc/i486-linux-gnu/4.8.3 │Selected GCC installation: /usr/bin/../lib/gcc/i486-linux-gnu/4.8 │ "/usr/lib/llvm-3.4/bin/clang" -cc1 -triple i386-pc-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name foo.cpp -mrelocation-model static -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -fuse-init-array -target-cpu pentium4 -target-linker-version 2.24.51.20140617 -v -resource-dir /usr/lib/llvm-3.4/bin/../lib/clang/3.4.2 -internal-isystem /usr/include//c++/4.8 -internal-isystem /usr/include//c++/4.8/i386-linux-gnu -internal-isystem /usr/include//c++/4.8/backward -internal-isystem /usr/include//i386-linux-gnu/c++/4.8 -internal-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/4.8 -internal-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/4.8/i486-linux-gnu -internal-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/4.8/backward -internal-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/i486-linux-gnu/c++/4.8 -internal-isystem /usr/include/clang/3.4.2/include/ -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-3.4/bin/../lib/clang/3.4.2/include -internal-externc-isystem /usr/bin/../lib/gcc/i486-linux-gnu/4.8/include -internal-externc-isystem /usr/include/i386-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdeprecated-macro -fdebug-compilation-dir /home/mccoyj1 -ferror-limit 19 -fmessage-length 113 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -vectorize-slp -o /tmp/foo-3b4ac3.o -x c++ foo.cpp │clang -cc1 version 3.4.2 based upon LLVM 3.4.2 default target i386-pc-linux-gnu │ignoring nonexistent directory "/usr/include//c++/4.8/i386-linux-gnu" │ignoring nonexistent directory "/usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/c++/4.8/i486-linux-gnu" │ignoring nonexistent directory "/usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../../include/i486-linux-gnu/c++/4.8" │ignoring nonexistent directory "/include" │ignoring duplicate directory "/usr/include//c++/4.8" │ignoring duplicate directory "/usr/include//c++/4.8/backward" │ignoring duplicate directory "/usr/include/clang/3.4.2/include" │#include "..." search starts here: │#include <...> search starts here: │ /usr/include//c++/4.8 │ /usr/include//c++/4.8/backward │ /usr/include//i386-linux-gnu/c++/4.8 │ /usr/include/clang/3.4.2/include │ /usr/local/include │ /usr/bin/../lib/gcc/i486-linux-gnu/4.8/include │ /usr/include/i386-linux-gnu │ /usr/include │End of search list. │ "/usr/bin/ld" --hash-style=both --build-id --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o foo /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../i386-linux-gnu/crt1.o /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../i386-linux-gnu/crti.o /usr/bin/../lib/gcc/i486-linux-gnu/4.8/crtbegin.o -L/usr/bin/../lib/gcc/i486-linux-gnu/4.8 -L/usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../i386-linux-gnu -L/lib/i386-linux-gnu -L/usr/lib/i386-linux-gnu -L/usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../.. -L/lib -L/usr/lib /tmp/foo-3b4ac3.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/bin/../lib/gcc/i486-linux-gnu/4.8/crtend.o /usr/bin/../lib/gcc/i486-linux-gnu/4.8/../../../i386-linux-gnu/crtn.o │$ └─────────── Cheers, James -- System Information: Debian Release: jessie/sid APT prefers unstable APT policy: (500, 'unstable'), (200, 'experimental') Architecture: i386 (i686) Kernel: Linux 3.14-1-486 Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages clang-3.4 depends on: ii libc6 2.19-7 ii libc6-dev 2.19-7 ii libclang-common-3.4-dev 1:3.4.2-4 ii libclang1-3.4 1:3.4.2-4 ii libffi6 3.1-2 ii libgcc-4.9-dev 4.9.1-1 ii libgcc1 1:4.9.1-1 ii libllvm3.4 1:3.4.2-4 ii libobjc-4.9-dev 4.9.1-1 ii libstdc++-4.9-dev 4.9.1-1 ii libstdc++6 4.9.1-1 ii libtinfo5 5.9+20140118-1 Versions of packages clang-3.4 recommends: ii llvm-3.4-dev 1:3.4.2-4 ii python 2.7.8-1 Versions of packages clang-3.4 suggests: pn gnustep <none> pn gnustep-devel <none> -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". 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