Headers are missing

### Solution to issue cannot be found in the documentation.

- [X] I checked the documentation.

### Issue

On OSX:

```
> conda create -n broken-compilers -y
> conda activate broken-compilers
> conda install c-compiler compilers cxx-compiler -c conda-forge -y
> which clang
/opt/miniconda3/envs/broken-compilers/bin/clang
> echo << EOF > test.cpp
#include

int main() {
std::cout << "Hello, World!" << std::endl;
return 0;
}
EOF
> clang test.cpp
In file included from test.cpp:1:
In file included from /opt/miniconda3/envs/vegas/bin/../include/c++/v1/iostream:37:
In file included from /opt/miniconda3/envs/vegas/bin/../include/c++/v1/ios:214:
In file included from /opt/miniconda3/envs/vegas/bin/../include/c++/v1/__locale:15:
In file included from /opt/miniconda3/envs/vegas/bin/../include/c++/v1/cctype:38:
/opt/miniconda3/envs/vegas/bin/../include/c++/v1/ctype.h:38:15: fatal error: 'ctype.h' file not found
#include_next
^~~~~~~~~
1 error generated.
```

### Installed packages

```shell
# packages in environment at /opt/miniconda3/envs/broken-compilers:
#
# Name Version Build Channel
c-compiler 1.5.2 hbf74d83_0 conda-forge
ca-certificates 2022.12.7 h033912b_0 conda-forge
cctools 973.0.1 h76f1dac_11 conda-forge
cctools_osx-64 973.0.1 hcc6d90d_11 conda-forge
clang 14.0.6 h694c41f_0 conda-forge
clang-14 14.0.6 default_h55ffa42_0 conda-forge
clang_osx-64 14.0.6 h3113cd8_4 conda-forge
clangxx 14.0.6 default_h55ffa42_0 conda-forge
clangxx_osx-64 14.0.6 h6f97653_4 conda-forge
compiler-rt 14.0.6 h613da45_0 conda-forge
compiler-rt_osx-64 14.0.6 h8d5cb93_0
compilers 1.5.2 h694c41f_0 conda-forge
cxx-compiler 1.5.2 hb8565cd_0 conda-forge
fortran-compiler 1.5.2 haad3a49_0 conda-forge
gfortran 11.3.0 h2c809b3_0 conda-forge
gfortran_impl_osx-64 11.3.0 h1f927f5_27 conda-forge
gfortran_osx-64 11.3.0 h18f7dce_0 conda-forge
gmp 6.2.1 h2e338ed_0 conda-forge
isl 0.25 hb486fe8_0 conda-forge
ld64 609 hc6ad406_11 conda-forge
ld64_osx-64 609 hfd63004_11 conda-forge
libclang-cpp14 14.0.6 default_h55ffa42_0 conda-forge
libcxx 14.0.6 hccf4f1f_0 conda-forge
libgfortran 5.0.0 11_3_0_h97931a8_27 conda-forge
libgfortran-devel_osx-64 11.3.0 h824d247_27 conda-forge
libgfortran5 11.3.0 h082f757_27 conda-forge
libiconv 1.17 hac89ed1_0 conda-forge
libllvm14 14.0.6 h5b596cc_1 conda-forge
libzlib 1.2.13 hfd90126_4 conda-forge
llvm-openmp 15.0.6 h61d9ccf_0 conda-forge
llvm-tools 14.0.6 h5b596cc_1 conda-forge
mpc 1.2.1 hbb51d92_0 conda-forge
mpfr 4.1.0 h0f52abe_1 conda-forge
openssl 3.0.7 hfd90126_1 conda-forge
sigtool 0.1.3 h88f4db0_0 conda-forge
tapi 1100.0.11 h9ce4665_0 conda-forge
zlib 1.2.13 hfd90126_4 conda-forge
```

### Environment info

```shell
active environment : broken-compilers
active env location : /opt/miniconda3/envs/broken-compilers
shell level : 3
user config file : /Users/dirkgr/.condarc
populated config files :
conda version : 22.11.1
conda-build version : not installed
python version : 3.8.3.final.0
virtual packages : __archspec=1=x86_64
__osx=10.16=0
__unix=0=0
base environment : /opt/miniconda3 (writable)
conda av data dir : /opt/miniconda3/etc/conda
conda av metadata url : None
channel URLs : https://repo.anaconda.com/pkgs/main/osx-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/osx-64
https://repo.anaconda.com/pkgs/r/noarch
package cache : /opt/miniconda3/pkgs
/Users/dirkgr/.conda/pkgs
envs directories : /opt/miniconda3/envs
/Users/dirkgr/.conda/envs
platform : osx-64
user-agent : conda/22.11.1 requests/2.28.1 CPython/3.8.3 Darwin/21.6.0 OSX/10.16
UID:GID : 501:20
netrc file : /Users/dirkgr/.netrc
offline mode : False
```

Reproduce the issue using the provided conda installation commands and test.cpp on macOS. Start with the clang invocation and inspect why the installed compiler cannot find ctype.h; done means the shown C++ program compiles successfully in the broken-compilers environment.

Written by the indexing model from the issue text.