OpenSSL 4.0 is in experimental. This package fails to build against it:

| x86_64-linux-gnu-gcc -c  -I/usr/include -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/libcrypt-openssl-pkcs12-perl-1.94=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2   -DVERSION=\"1.94\" -DXS_VERSION=\"1.94\" -fPIC "-I/usr/lib/x86_64-linux-gnu/perl/5.40/CORE"   PKCS12.c
| PKCS12.xs: In function ‘print_attribute’:
| PKCS12.xs:659:48: error: invalid use of incomplete typedef ‘ASN1_BMPSTRING’ {aka ‘struct asn1_string_st’}
|   659 |     value = OPENSSL_uni2asc(av->value.bmpstring->data,
|       |                                                ^~
| PKCS12.xs:660:52: error: invalid use of incomplete typedef ‘ASN1_BMPSTRING’ {aka ‘struct asn1_string_st’}
|   660 |                                 av->value.bmpstring->length);
|       |                                                    ^~
| In file included from PKCS12.xs:3:
| PKCS12.xs:662:44: error: invalid use of incomplete typedef ‘ASN1_BMPSTRING’ {aka ‘struct asn1_string_st’}
|   662 |       Renew(*attribute, av->value.bmpstring->length, char);
|       |                                            ^~
| /usr/lib/x86_64-linux-gnu/perl/5.40/CORE/perl.h:4233:62: note: in definition of macro ‘EXPECT’
|  4233 | #  define EXPECT(expr,val)                  __builtin_expect(expr,val)
|       |                                                              ^~~~
| /usr/lib/x86_64-linux-gnu/perl/5.40/CORE/perl.h:4254:52: note: in expansion of macro ‘cBOOL’
|  4254 | #define UNLIKELY(cond)                      EXPECT(cBOOL(cond),FALSE)
|       |                                                    ^~~~~
| /usr/lib/x86_64-linux-gnu/perl/5.40/CORE/handy.h:2761:16: note: in expansion of macro ‘UNLIKELY’
|  2761 |         (void)(UNLIKELY(_MEM_WRAP_WILL_WRAP(n,t)) \
|       |                ^~~~~~~~
| /usr/lib/x86_64-linux-gnu/perl/5.40/CORE/handy.h:2757:9: note: in expansion of macro ‘_MEM_WRAP_NEEDS_RUNTIME_CHECK’
|  2757 |       ((_MEM_WRAP_NEEDS_RUNTIME_CHECK(n,t) ? (MEM_SIZE)(n) : \
|       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| /usr/lib/x86_64-linux-gnu/perl/5.40/CORE/handy.h:2761:25: note: in expansion of macro ‘_MEM_WRAP_WILL_WRAP’
|  2761 |         (void)(UNLIKELY(_MEM_WRAP_WILL_WRAP(n,t)) \
|       |                         ^~~~~~~~~~~~~~~~~~~
| /usr/lib/x86_64-linux-gnu/perl/5.40/CORE/handy.h:2773:32: note: in expansion of macro ‘MEM_WRAP_CHECK’
|  2773 | #  define MEM_WRAP_CHECK_(n,t) MEM_WRAP_CHECK(n,t),
|       |                                ^~~~~~~~~~~~~~
| /usr/lib/x86_64-linux-gnu/perl/5.40/CORE/handy.h:2862:17: note: in expansion of macro ‘MEM_WRAP_CHECK_’
|  2862 |           (v = (MEM_WRAP_CHECK_(n,t) (t*)MEM_LOG_REALLOC(n,t,v,saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))))
|       |                 ^~~~~~~~~~~~~~~
| PKCS12.xs:662:7: note: in expansion of macro ‘Renew’
|   662 |       Renew(*attribute, av->value.bmpstring->length, char);
|       |       ^~~~~
| PKCS12.xs:662:44: error: invalid use of incomplete typedef ‘ASN1_BMPSTRING’ {aka ‘struct asn1_string_st’}
|   662 |       Renew(*attribute, av->value.bmpstring->length, char);
|       |                                            ^~
…
| PKCS12.xs:693:7: note: in expansion of macro ‘Renew’
|   693 |       Renew(*attribute, av->value.bit_string->length *4, char);
|       |       ^~~~~
| PKCS12.xs:694:47: error: invalid use of incomplete typedef ‘ASN1_BIT_STRING’ {aka ‘struct asn1_string_st’}
|   694 |       get_hex(*attribute, av->value.bit_string->data, av->value.bit_string->length);
|       |                                               ^~
| PKCS12.xs:694:75: error: invalid use of incomplete typedef ‘ASN1_BIT_STRING’ {aka ‘struct asn1_string_st’}
|   694 |       get_hex(*attribute, av->value.bit_string->data, av->value.bit_string->length);
|       |                                                                           ^~
| PKCS12.xs:696:41: error: invalid use of incomplete typedef ‘ASN1_BIT_STRING’ {aka ‘struct asn1_string_st’}
|   696 |       hex_prin(out, av->value.bit_string->data,
|       |                                         ^~
| PKCS12.xs:697:38: error: invalid use of incomplete typedef ‘ASN1_BIT_STRING’ {aka ‘struct asn1_string_st’}
|   697 |                  av->value.bit_string->length);
|       |                                      ^~
| PKCS12.xs: In function ‘print_attribs’:
| PKCS12.xs:762:14: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
|   762 |     attr_obj = X509_ATTRIBUTE_get0_object(attr);
|       |              ^
| PKCS12.xs:782:12: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
|   782 |         av = X509_ATTRIBUTE_get0_type(attr, j);
|       |            ^
| make[1]: *** [Makefile:344: PKCS12.o] Error 1


Full buildlog
https://breakpoint.cc/openssl-rebuild/logs-4/attempted/libcrypt-openssl-pkcs12-perl_1.94-1_amd64-2026-04-19T07:33:32Z

Sebastian

We believe that the bug you reported is fixed in the latest version of
libcrypt-openssl-pkcs12-perl, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1138300@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
gregor herrmann <gregoa@debian.org> (supplier of updated libcrypt-openssl-pkcs12-perl package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Fri, 28 Aug 2026 11:52:51 +0200
Source: libcrypt-openssl-pkcs12-perl
Architecture: source
Version: 1.99-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Perl Group <pkg-perl-maintainers@lists.alioth.debian.org>
Changed-By: gregor herrmann <gregoa@debian.org>
Closes: 1138300
Changes:
 libcrypt-openssl-pkcs12-perl (1.99-1) unstable; urgency=medium
 .
   * Team upload.
   * Import upstream version 1.99.
     Fixes "FTBFS with openssl 4.0"
     (Closes: #1138300)
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Files:
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 763b62507f2e96a91e1bef7c7373a54a 17748 perl optional libcrypt-openssl-pkcs12-perl_1.99-1_source.buildinfo
Git-Tag-Info: tag=5776f7b777cb0260ad1e1b1fad124a764310553d fp=d1e1316e93a760a8104d85fabb3a68018649aa06
Git-Tag-Tagger: gregor herrmann <gregoa@debian.org>
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