'limits' file not found

[vadtam]

Hello, I also can not compile the Rust crate opencv = "0.76.3"

1. OS Ubuntu 22.04 LTS
2. I installed opencv using $ sudo apt install libopencv-dev clang libclang-dev
   Also, I checked that opencv works using $ python3

     import cv2
     cv2.__version__

Outputs: '4.7.0'

3. rustc v1.67.0

4. When I compile, I get this

=== /usr/include/opencv4/opencv2/core/cvdef.h:185:10: fatal error: 'limits' file not found
thread 'main' panicked at '=== Errors during header parsing', /home/myuser/.cargo/registry/src/github.com-1ecc6299db9ec823/opencv-binding-generator-0.55.0/src/generator.rs:512:17
stack backtrace:
0: 0x564ad6630c0a - std::backtrace_rs::backtrace::libunwind::trace::h34aec3ef6cd8ad7e
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x564ad6630c0a - std::backtrace_rs::backtrace::trace_unsynchronized::h8035d38698d0f7a8
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x564ad6630c0a - std::sys_common::backtrace::_print_fmt::hff968f6695a1ba22
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/sys_common/backtrace.rs:65:5
3: 0x564ad6630c0a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7eea0efe77acf1ec
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/sys_common/backtrace.rs:44:22
4: 0x564ad6653fce - core::fmt::write::hc553f17407eb0b48
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/core/src/fmt/mod.rs:1208:17
5: 0x564ad662dad5 - std::io::Write::write_fmt::h62e5f01a089f48c0
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/io/mod.rs:1682:15
6: 0x564ad66309d5 - std::sys_common::backtrace::_print::h52d116aff3db4cd1
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/sys_common/backtrace.rs:47:5
7: 0x564ad66309d5 - std::sys_common::backtrace::print::h9e7d2f98fb7af075
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/sys_common/backtrace.rs:34:9
8: 0x564ad663205f - std::panicking::default_hook::{{closure}}::hf74999dab2d0a95c
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:267:22
9: 0x564ad6631d9b - std::panicking::default_hook::hc11ca7d10c44c42f
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:286:9
10: 0x564ad663276c - std::panicking::rust_panic_with_hook::hdb4da1ae79c845a5
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:688:13
11: 0x564ad66324c2 - std::panicking::begin_panic_handler::{{closure}}::h02b5b35b126d5cf2
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:577:13
12: 0x564ad66310bc - std::sys_common::backtrace::__rust_end_short_backtrace::h6c6853376cf416d1
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/sys_common/backtrace.rs:137:18
13: 0x564ad6632212 - rust_begin_unwind
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:575:5
14: 0x564ad649e603 - core::panicking::panic_fmt::hfd9e949092070b66
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/core/src/panicking.rs:64:14
15: 0x564ad64e1b8a - opencv_binding_generator::generator::Generator::handle_diags::h4494e53de6b85989
16: 0x564ad64a5ce2 - opencv_binding_generator::generator::Generator::process_opencv_module::h2ed6f6e32793d3dc
17: 0x564ad64a9fca - binding_generator::main::h61103a86d77429b6
18: 0x564ad64ab3d3 - std::sys_common::backtrace::__rust_begin_short_backtrace::hebec183eaf01f78e
19: 0x564ad64a0c69 - std::rt::lang_start::{{closure}}::hf507f37f302d6e4f
20: 0x564ad662a84c - core::ops::function::impls::<impl core::ops::function::FnOnce for &F>::call_once::h9ab31282e87f134a
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/core/src/ops/function.rs:606:13
21: 0x564ad662a84c - std::panicking::try::do_call::h42ddf5b01d0b4bc7
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:483:40
22: 0x564ad662a84c - std::panicking::try::hfb70320d7386c61a
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:447:19
23: 0x564ad662a84c - std::panic::catch_unwind::h978c9edbad2bb4d4
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panic.rs:137:14
24: 0x564ad662a84c - std::rt::lang_start_internal::{{closure}}::h04ede5bd2f26b553
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/rt.rs:148:48
25: 0x564ad662a84c - std::panicking::try::do_call::ha6b9da35a0885c93
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:483:40
26: 0x564ad662a84c - std::panicking::try::h3325520cab3a642e
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panicking.rs:447:19
27: 0x564ad662a84c - std::panic::catch_unwind::h160beec6f047175b
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/panic.rs:137:14
28: 0x564ad662a84c - std::rt::lang_start_internal::h79190e3a877a769d
at /rustc/fc594f15669680fa70d255faec3ca3fb507c3405/library/std/src/rt.rs:148:20
29: 0x564ad64aa7b5 - main
30: 0x7fe1e5312d90 -
31: 0x7fe1e5312e40 - __libc_start_main
32: 0x564ad649ec75 - _start
33: 0x0 -

[twistedfall]

Can you please attach the full build log as produced by cargo build -vv?

[vadtam]

Please find attached the output of $ RUST_BACKTRACE=full cargo build -vv
log.txt

[twistedfall]

Can you please show me the output of the find / -name limits.h on your machine? My fresh Ubuntu 22.04 container shows:

/usr/lib/gcc/x86_64-linux-gnu/11/include/limits.h
/usr/lib/llvm-14/lib/clang/14.0.0/include/limits.h
/usr/include/c++/11/tr1/limits.h
/usr/include/limits.h
/usr/include/linux/limits.h

Also I see the difference in clang arguments between your log and my container:
your log

"-isystem/usr/bin/../lib/gcc/x86_64-linux-gnu/12/../../../../include/c++",

container:

"-isystem/usr/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11",
"-isystem/usr/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/x86_64-linux-gnu/c++/11",
"-isystem/usr/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c++/11/backward",

Do you maybe know why this difference?

[vadtam]

$ sudo find / -name limits.h
/usr/src/linux-headers-5.4.0-137/include/linux/limits.h
/usr/src/linux-headers-5.4.0-137/include/uapi/linux/limits.h
/usr/src/linux-oem-headers-4.15.0-1027/arch/arm/include/asm/limits.h
/usr/src/linux-oem-headers-4.15.0-1027/include/uapi/linux/limits.h
/usr/src/linux-headers-5.15.0-58/include/vdso/limits.h
/usr/src/linux-headers-5.15.0-58/include/linux/limits.h
/usr/src/linux-headers-5.15.0-58/include/uapi/linux/limits.h
/usr/share/virtualbox/src/vboxhost/vboxnetadp/include/iprt/nocrt/limits.h
/usr/share/virtualbox/src/vboxhost/vboxnetflt/include/iprt/nocrt/limits.h
/usr/share/virtualbox/src/vboxhost/vboxdrv/include/iprt/nocrt/limits.h
/usr/lib/gcc/x86_64-linux-gnu/7/include/limits.h
/usr/lib/gcc/x86_64-linux-gnu/11/include/limits.h
/usr/lib/gcc/x86_64-linux-gnu/12/include/limits.h
/usr/lib/gcc/x86_64-linux-gnu/9/include/limits.h
/usr/lib/llvm-14/lib/clang/14.0.0/include/limits.h
/usr/include/linux/limits.h
/usr/include/c++/11/tr1/limits.h
/usr/include/limits.h
find: ‘/run/user/1001/doc’: Permission denied
find: ‘/run/user/1001/gvfs’: Permission denied

There are a lot of "limits" files here. I do not know why the compiler doesn't find the correct one. Just a guess that maybe some path is wrong.

[twistedfall]

Can you please also show the result of the following command find / -type f -name limits?

[vadtam]

$ sudo find / -type f -name limits | grep -v "proc"
/usr/include/c++/11/limits

[twistedfall]

Can you please try installing libstdc++-12-dev (apt install libstdc++-12-dev) package and trying the build again?

[vadtam]

Thank you, man. I have installed this libstdc++-12-dev package, and everything compiles now.