[Tcllib-bugs] [Tcllib] (pooryorick) tkt (Open): tcllibc and sha256c leads to error "Headers for API sha256c not found in"

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Ticket Change [69645564c81834da1b52c90bb3214647115d9d50dc008b2ce27ea3a9c8e875e9]
  [tcllibc and sha256c leads to  error "Headers for API sha256c not found in"]
  By      pooryorick
  For     Tcllib
  On      2025-07-03T10:47:01.047
  Details https://core.tcl-lang.org/tcllib/tinfo?name=69645564c81834da1b52c90bb3214647115d9d50dc008b2ce27ea3a9c8e875e9
  Ticket  https://core.tcl-lang.org/tcllib/tktview/8f0ff730836505e298defe424329cd0fb9527efc

Changed Fields
  comment: After removing ~/.critcl, the following script,

           <code><verbatim>  package require critcl  package require sha256
           package require sha256c  ::critcl::tcl 9.0   ::critcl::ccode {}
           ::critcl::api import sha256c 1  </verbatim></code>

           , results in the error:

           <code><verbatim>  Headers for API sha256c not found in   -
           /path/to/.critcl/linux-unknown-x86_64  while executing  "error
           "Headers for API $name not found in \ -\ [join $searched \ -\ ]""
           (procedure "::critcl::APIimport" line 24)  invoked from within
           "::critcl::APIimport /path/to/testcript sha256c 1"  ("eval" body line
           1)  invoked from within  "eval [linsert $args 0 ::critcl::API$cmd
           $file]"  (procedure "::critcl::api" line 10)  invoked from within
           "::critcl::api import sha256c 1"  </verbatim></code>

           With the following modification the script completes successfully :

           <code><verbatim>  --- modules/sha1/sha256.tcl  +++
           modules/sha1/sha256.tcl  @@ -81,12 +81,12 @@  tcl {  # Already present
           (this file)  set r 1  }  critcl {  - if {![catch {package require
           tcllibc}]  - || ![catch {package require sha256c}]} {  + if {  +
           ![catch {package require sha256c}]} {  set r [expr {[info commands
           ::sha2::sha256c_update] != {}}]  }  }  default {  return -code error
           "invalid accelerator $key:\\  </verbatim></code>

           The issue is that if [package require tcllibc] is executed first, then
           [package require sha256c] does not lead to the evaluation of
           sha256c.tcl, and  therefore the line "critcl::cheaders sha256.h" is
           never encountered.
  login:   pooryorick

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