scan-build from libclang unable to find ccc-analyzer

[jtojnar]

Describe the bug

scan-build program from libclang looks for ccc-analyzer in ../libexec but it is installed into a different output.

Steps To Reproduce

$ nix-build -A libclang.all
$ result/bin/scan-build -o /tmp/foo echo
scan-build: 'ccc-analyzer' does not exist at '/nix/store/54fwpd1lsgr1kadg9989cvafqkzfsqm8-clang-7.1.0/bin/ccc-analyzer'

Expected behaviour

scan-build should find ccc-analyzer.

Additional context

It works with scan-build from clang-analyzer:

$ nix-build -A clang-analyzer
$ result/bin/scan-build -o /tmp/foo echo
scan-build: Using '/nix/store/52w8z9p8m5idz4fsh9y1znmms59da8ba-clang-wrapper-13.0.0/bin/clang' for static analysis
[…]

This is bug is especially annoying because when it is first on PATH, it shadows the working program.

Possible solutions

• Remove scan-build from libclang so it has a canonical home in clang-analyzer.
• Patch scan-build code to point to lib output.
• Move ccc-analyzer to out output.

Notify maintainers

cc @lovek323 @7c6f434c @dtzWill @primeos (libclang)
cc @thoughtpolice @Mic92 (clang-analyzer)

Metadata

Nixpkgs a2e281f

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute: libclang
# a list of nixos modules affected by the problem
module:

[Mic92]

The llvm code build system is quite convoluted. Otherwise we could have just disabled scan-build from libclang build.

[jtojnar]

Possibly will be fixed by #144302

[hmih]

Still happening on aarch64-darwin.

[disconnect3d]

Still happening on Darwin x86_64. Fix please! :)

[ranguli]

And on NixOS x86_64 too :(

[MaartenBehn]

Still happening

[N1coc4colA]

Hello, I have the same issue. So I checked all the files on my system for the binary.
I have the following (1):

$ find / -type f -name "ccc-analyzer"
/nix/store/wxxgsgjxbnkkyczgf8lkbfrsqiywm8bi-clang-17.0.6-lib/libexec/ccc-analyzer
/nix/store/bwmzqq1dn6w0s1dfcr6q2bby45wvmf0g-clang-17.0.6-lib/libexec/ccc-analyzer
/nix/store/innxkyxqxr9zqsic5pm3d4skm1v0q06j-clang-17.0.6-lib/libexec/ccc-analyzer
/nix/store/3x48dmkw2z70mscl68a5xhf9rpr57qw2-clang-18.1.7-lib/libexec/ccc-analyzer
/nix/store/js44niygpsvdni002pjk7jx1yx4gr822-clang-14.0.6-lib/libexec/ccc-analyzer
/nix/store/ngkb010a8h2slk0z0k8ggnlaf8q3dvl7-clang-analyzer-14.0.6/libexec/ccc-analyzer
/nix/store/2kj5z0sp8cdi28rx8s62gmc8r0wbsir8-clang-14.0.6-lib/libexec/ccc-analyzer
/nix/store/170rx26nfgs7rdx49dmip15c2apav821-clang-analyzer-14.0.6/libexec/ccc-analyzer

In a flake that I use with both clang-tools and clang-analyzer, I have (2):

$ which ccc-analyzer
which: no ccc-analyzer in (/nix/store/1av86b17lymgk29s85nhgxsmfvmxympz-bash-interactive-5.2p32/bin:/nix/store/6wf8zxqql7gmmi96k6swmm0pvqp13gi8-patchelf-0.15.0/bin:/nix/store/r6k305g2rn0qqkvdxfvzqg7mhh7rw679-gcc-wrapper-13.2.0/bin:/nix/store/6g5fhxv0bdm7236ixdwq1izzawbc7grm-gcc-13.2.0/bin:/nix/store/4y2kcviw0cczb56lfl84h7n7j7xm8hh0-glibc-2.39-52-bin/bin:/nix/store/mr63za5vkxj0yip6wj3j9lya2frdm3zc-coreutils-9.5/bin:/nix/store/si9c1ncjikjq2hl5m8i6dzrfznmsz7g5-binutils-wrapper-2.41/bin:/nix/store/q3sm4x963a996qc3d6baw54609ryifak-binutils-2.41/bin:/nix/store/170rx26nfgs7rdx49dmip15c2apav821-clang-analyzer-14.0.6/bin:/nix/store/mr63za5vkxj0yip6wj3j9lya2frdm3zc-coreutils-9.5/bin:/nix/store/myb4rzvdyahvvlyyx32i19nhmr78bc8k-findutils-4.9.0/bin:/nix/store/wk9vn3lcxqya6a5j17v87x18lrkg2ngy-diffutils-3.10/bin:/nix/store/nhr25jgz6bpxbrz6kndjyvgaxipall0j-gnused-4.9/bin:/nix/store/3jc4m5gwimj4mbm01ijgkm2di8hiy5l3-gnugrep-3.11/bin:/nix/store/g7rq3khf0bnm64amflrc4964b7q57dqv-gawk-5.2.2/bin:/nix/store/wqbq6prmrhgm19qqdqm3ijjbap9x74cn-gnutar-1.35/bin:/nix/store/jpqm5igl1gmahp7lxx8j1dy874zvirgm-gzip-1.13/bin:/nix/store/azwrrzpvar2qyn5s4cmrj4jfgfjgmkbv-bzip2-1.0.8-bin/bin:/nix/store/mywvjmd80bayzbi161nly2vfpikyc47h-gnumake-4.4.1/bin:/nix/store/516kai7nl5dxr792c0nzq0jp8m4zvxpi-bash-5.2p32/bin:/nix/store/cjjaglbcsg30bc7rf6xajpp73fkna2mk-patch-2.7.6/bin:/nix/store/kpabg6z89nfry6frc3p5m3zfmk94zyqn-xz-5.4.7-bin/bin:/nix/store/vqhj138xim73r80qcsc546crm4y80ca2-file-5.45/bin:/nix/store/1av86b17lymgk29s85nhgxsmfvmxympz-bash-interactive-5.2p32/bin:/nix/store/6wf8zxqql7gmmi96k6swmm0pvqp13gi8-patchelf-0.15.0/bin:/nix/store/r6k305g2rn0qqkvdxfvzqg7mhh7rw679-gcc-wrapper-13.2.0/bin:/nix/store/6g5fhxv0bdm7236ixdwq1izzawbc7grm-gcc-13.2.0/bin:/nix/store/4y2kcviw0cczb56lfl84h7n7j7xm8hh0-glibc-2.39-52-bin/bin:/nix/store/mr63za5vkxj0yip6wj3j9lya2frdm3zc-coreutils-9.5/bin:/nix/store/si9c1ncjikjq2hl5m8i6dzrfznmsz7g5-binutils-wrapper-2.41/bin:/nix/store/q3sm4x963a996qc3d6baw54609ryifak-binutils-2.41/bin:/nix/store/170rx26nfgs7rdx49dmip15c2apav821-clang-analyzer-14.0.6/bin:/nix/store/mr63za5vkxj0yip6wj3j9lya2frdm3zc-coreutils-9.5/bin:/nix/store/myb4rzvdyahvvlyyx32i19nhmr78bc8k-findutils-4.9.0/bin:/nix/store/wk9vn3lcxqya6a5j17v87x18lrkg2ngy-diffutils-3.10/bin:/nix/store/nhr25jgz6bpxbrz6kndjyvgaxipall0j-gnused-4.9/bin:/nix/store/3jc4m5gwimj4mbm01ijgkm2di8hiy5l3-gnugrep-3.11/bin:/nix/store/g7rq3khf0bnm64amflrc4964b7q57dqv-gawk-5.2.2/bin:/nix/store/wqbq6prmrhgm19qqdqm3ijjbap9x74cn-gnutar-1.35/bin:/nix/store/jpqm5igl1gmahp7lxx8j1dy874zvirgm-gzip-1.13/bin:/nix/store/azwrrzpvar2qyn5s4cmrj4jfgfjgmkbv-bzip2-1.0.8-bin/bin:/nix/store/mywvjmd80bayzbi161nly2vfpikyc47h-gnumake-4.4.1/bin:/nix/store/516kai7nl5dxr792c0nzq0jp8m4zvxpi-bash-5.2p32/bin:/nix/store/cjjaglbcsg30bc7rf6xajpp73fkna2mk-patch-2.7.6/bin:/nix/store/kpabg6z89nfry6frc3p5m3zfmk94zyqn-xz-5.4.7-bin/bin:/nix/store/vqhj138xim73r80qcsc546crm4y80ca2-file-5.45/bin:/nix/store/x2birk6l1j0q4p1f3w3wdsayyn79iscl-clang-tools-17.0.6/bin:/nix/store/q1nssraba326p2kp6627hldd2bhg254c-cmake-3.29.2/bin:/nix/store/by4j2n3mhqdps4d9mm0crhkhk2f2kr2p-cmake-cursesUI-3.29.2/bin:/nix/store/wjl553m0vxgnrcwhywph5nh3w86zb9cj-gdb-14.2/bin:/nix/store/mzhqknx2mc94jdz4n320hn1lml86398y-clang-wrapper-17.0.6/bin:/nix/store/gx27b857v63sm7syli75gjzdvayf2xsr-clang-17.0.6/bin:/nix/store/c2i631h8i5vcs1sqifwxfsazhwrg6wr5-glibc-2.39-52-bin/bin:/nix/store/php4qidg2bxzmm79vpri025bqi0fa889-coreutils-9.5/bin:/nix/store/7bd6mlnyj4192ssw50hksnqbxmj98p26-binutils-wrapper-2.41/bin:/nix/store/bgcaxhhxswzvmxjbbgvvaximm5hwghz1-binutils-2.41/bin:/nix/store/dfcywchxh3lvq92px9hlz477dzkcxvmv-cmake-format-0.6.13/bin:/nix/store/dcmq586xpp336zjir4srh8dvm4kyyrbj-python3.11-autopep8-2.0.4-unstable-2023-10-27/bin:/nix/store/1840zmqg80i3ww7gnyqgwsg49cv9ns2h-python3.11-pycodestyle-2.11.1/bin:/nix/store/7hnr99nxrd2aw6lghybqdmkckq60j6l9-python3-3.11.9/bin:/nix/store/ib0m5lnzb4l8213f0vaagvmrk03xnrrn-python3.11-flake8-7.0.0/bin:/nix/store/6skybaydm329y90cqx5bwp5w0lfn4qpp-python3.11-pyflakes-3.2.0/bin:/nix/store/g0vb4hdpqn2q89887rg9147p3sljghr4-python3.11-pylint-3.1.1/bin:/nix/store/dkzhrhyxn6vd58i3xg48ay7xzhvqaz9v-python3.11-dill-0.3.8/bin:/nix/store/jmmnrckscm9ivdvb5q3y7s3jkbbzs4dm-python3.11-isort-5.13.2/bin:/nix/store/ngkb010a8h2slk0z0k8ggnlaf8q3dvl7-clang-analyzer-14.0.6/bin:/nix/store/3x986i6c36mhl68bcvah99wm8lz8rrx5-graphviz-10.0.1/bin:/nix/store/r0qbx7mr4yri1pqx7wlan72xsxlgj1za-qt-full-5.15.12/bin:/nix/store/zdvrzlvzbn9ymb0z8na50w995j8np16z-pkg-config-wrapper-0.29.2/bin:/nix/store/37979sqc7yw9ps0c4xl9jjkhq0w1hw8b-libxml2-2.12.7-dev/bin:/nix/store/p3109b71w6xbc9zdj2gdmdy1iri50311-libxml2-2.12.7-bin/bin:/nix/store/f4kccbmzw55jcx17kjjaa05v8kmxz5v6-lua-5.2.4/bin:/nix/store/0m8griw158hdfyb3myxx0jhg2d8iyi16-clang-17.0.6-dev/bin:/nix/store/6km6zzql932i6399xbb16v39n35g89qc-llvm-17.0.6-dev/bin:/nix/store/1c9jq1csrx42g5vqynlfl0x63k2nx1x9-ncurses-6.4-dev/bin:/nix/store/j4m3lwhh4x0bzilvi77d512ahry775nq-ncurses-6.4/bin:/nix/store/xhkqzjmzpsrzyjfpvwgpaqb5gvqkhmyv-llvm-17.0.6/bin:/nix/store/nbad47q0m0m9c5xid7zh05hiknwircbp-patchelf-0.15.0/bin:/nix/store/9bv7dcvmfcjnmg5mnqwqlq2wxfn8d7yi-gcc-wrapper-13.2.0/bin:/nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/bin:/nix/store/kln7kinji3b7sz8r50h4gn9yy6k1js9a-binutils-wrapper-2.41/bin:/nix/store/2ryq88lrrrrmidsvridcv8rcs3arp1f3-compiler-rt-libc-17.0.6/bin:/nix/store/php4qidg2bxzmm79vpri025bqi0fa889-coreutils-9.5/bin:/nix/store/jjcsr5gs4qanf7ln5c6wgcq4sn75a978-findutils-4.9.0/bin:/nix/store/i34mknsjgrfyy71k2h79gda0bvagzc2j-diffutils-3.10/bin:/nix/store/5zjms21vpxlkbc0qyl5pmj2sidfmzmd7-gnused-4.9/bin:/nix/store/28gpmx3z6ss3znd7fhmrzmvk3x5lnfbk-gnugrep-3.11/bin:/nix/store/8vvkbgmnin1x2jkp7wcb2zg1p0vc4ks9-gawk-5.2.2/bin:/nix/store/rik7p68cq7yzlj5pmfpf4yv6jnrpvlgf-gnutar-1.35/bin:/nix/store/j5chw7v1x3vlmf3wmdpdb5gwh9hl0b80-gzip-1.13/bin:/nix/store/mxcq77rlan82dzpv3cgj0fh6qvv8ncil-bzip2-1.0.8-bin/bin:/nix/store/cdzpn0rdq810aknww3w9fy3wmw9ixr66-gnumake-4.4.1/bin:/nix/store/306znyj77fv49kwnkpxmb0j2znqpa8bj-bash-5.2p26/bin:/nix/store/0lfxbmchigx9vs9qmrlbahcy6nxwfnj1-patch-2.7.6/bin:/nix/store/6i4xxaa812vsbli9jkq4mksdddrk27lw-xz-5.4.6-bin/bin:/nix/store/xx7x1dwybpssfhq8yikvzz38bh3yrq97-file-5.45/bin:/run/wrappers/bin:/home/kula/.local/share/flatpak/exports/bin:/var/lib/flatpak/exports/bin:/home/kula/.nix-profile/bin:/nix/profile/bin:/home/kula/.local/state/nix/profile/bin:/etc/profiles/per-user/kula/bin:/nix/var/nix/profiles/default/bin:/run/current-system/sw/bin)

However, I have the followings that contains the ccc-analyzer executable from the output of (1), as it has been matched in (2):

/nix/store/ngkb010a8h2slk0z0k8ggnlaf8q3dvl7-clang-analyzer-14.0.6/libexec/ccc-analyzer
/nix/store/170rx26nfgs7rdx49dmip15c2apav821-clang-analyzer-14.0.6/libexec/ccc-analyzer

Both paths are for the same package. In (2), the PATH just use:

/nix/store/ngkb010a8h2slk0z0k8ggnlaf8q3dvl7-clang-analyzer-14.0.6/bin
/nix/store/170rx26nfgs7rdx49dmip15c2apav821-clang-analyzer-14.0.6/bin

According to the FHS specs it is normal to not find it in path. The issue happened several times in the past with Nix. For example with the #288267. So it seems to be a redundant problem with different packages.
After checking LIBEXEC_PATH's different paths, none includes ccc-analyzer, which points to a packaging issue for not exporting the libexec path.

I am no expert in how Nix makes the packaging. So I just leave it here, but I guess it may just take the time of adding a few lines of code in a clang-analyzer's conf file somewhere.

[LarssonMartin1998]

Still having this issue on wsl nixos x86_64