[Pkg-openssl-devel] Bug#1138421: isync: FTBFS with openssl 4.0

[Sebastian Andrzej Siewior]

Package: isync
Version: 1.5.1-2
Severity: normal
Tags: sid
control: affects -1 src:openssl
User: pkg-openssl-devel at lists.alioth.debian.org
Usertags: openssl-4.0

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

| gcc -DHAVE_CONFIG_H -I. -I..   -Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE    -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/isync-1.5.1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -pipe -std=c11 -pedantic -Wall -Wextra -Wshadow -Wcast-qual -Wformat=2 -Wformat-signedness -Wformat-nonliteral -Wstrict-prototypes -Wno-overlength-strings -c -o socket.o socket.c
| socket.c: In function ‘verify_hostname’:
| socket.c:144:71: error: invalid use of incomplete typedef ‘ASN1_IA5STRING’ {aka ‘struct asn1_string_st’}
|   144 |                             strlen( (const char *)subj_alt_name->d.ia5->data ) == (size_t)subj_alt_name->d.ia5->length &&
|       |                                                                       ^~
| socket.c:144:111: error: invalid use of incomplete typedef ‘ASN1_IA5STRING’ {aka ‘struct asn1_string_st’}
|   144 |                             strlen( (const char *)subj_alt_name->d.ia5->data ) == (size_t)subj_alt_name->d.ia5->length &&
|       |                                                                                                               ^~
| socket.c:145:88: error: invalid use of incomplete typedef ‘ASN1_IA5STRING’ {aka ‘struct asn1_string_st’}
|   145 |                             host_matches( hostname, (const char *)(subj_alt_name->d.ia5->data) ))
|       |                                                                                        ^~
| socket.c:157:20: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
|   157 |         if (!(subj = X509_get_subject_name( cert ))) {
|       |                    ^
| socket.c:161:9: warning: ‘X509_NAME_get_text_by_NID’ is deprecated: Since OpenSSL 4.0 [-Wdeprecated-declarations]
|   161 |         if ((len = X509_NAME_get_text_by_NID( subj, NID_commonName, cname, sizeof(cname) )) < 0) {
|       |         ^~
| In file included from /usr/include/openssl/ssl.h:34,
|                  from socket.h:18,
|                  from socket.c:9:
| /usr/include/openssl/x509.h:1041:27: note: declared here
|  1041 | OSSL_DEPRECATEDIN_4_0 int X509_NAME_get_text_by_NID(const X509_NAME *name,
|       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~
| make[3]: *** [Makefile:735: socket.o] Error 1


Full buildlog
 	https://breakpoint.cc/openssl-rebuild/logs-4/attempted/isync_1.5.1-2_amd64-2026-04-19T09:11:19Z

Sebastian