Re: Can't build TclTLS 2.0b1

On 7/8/25 12:08 PM, Ralf Fassel wrote:

* Ashok <apnmbx-public@yahoo.com>
| So I'm guessing that /usr/include is already in the default system
| include search path and therefore gets ignored when specified as the
| -I
| option. Additionally, /usr/local/include appears before /usr/include
| in the default search path. That might explain what you are seeing.
    https://stackoverflow.com/questions/4980819/what-are-the-gcc-default-include-directories
 suggests to use
    echo | gcc -xc -E -v -
 to see the defaults plus any effect of environment variables like CPATH
    % echo | gcc -xc -E -v -
   [...]
     #include "..." search starts here:
     #include <...> search starts here:
      /usr/lib64/gcc/x86_64-suse-linux/7/include
      /usr/local/include
      /usr/lib64/gcc/x86_64-suse-linux/7/include-fixed
      /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/include
      /usr/include
     End of search list.
 So indeed /usr/local/include is listed *before* /usr/include.
 One could use -isystem/usr/include to change that order:
    % echo | gcc -isystem/usr/include -xc -E -v -
   [...]
     #include "..." search starts here:
     #include <...> search starts here:
      /usr/include
      /usr/lib64/gcc/x86_64-suse-linux/7/include
      /usr/local/include
      /usr/lib64/gcc/x86_64-suse-linux/7/include-fixed
      /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/include
     End of search list.
  HTH
R'

Another option is to remove the standard include paths. So use the "-nostdinc" option and add back the "-I/usr/include" path too via the CFLAGS env var.
See https://commandlinefanatic.com/cgi-bin/showarticle.cgi?article=art026
The last option is just delete that old version of OpenSSL.