/usr/bin/ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_md4it'

[esdrasdemorais]

I tried compile in my Dell Laptop with Slackware Current Latest Version.

And this error happened after run make command:

/usr/bin/ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_md4it'

I expected the following

curl/libcurl version

[curl -V output]

curl 7.86.0 (x86_64-pc-linux-gnu) libcurl/7.86.0 OpenSSL/1.1.1q zlib/1.2.13 brotli/1.0.9 zstd/1.5.2 c-ares/1.18.1 libidn2/2.3.3 libpsl/0.21.1 (+libidn2/2.3.3) libssh2/1.10.0 nghttp2/1.50.0
Release-Date: 2022-10-26
Protocols: dict file ftp ftps gopher gophers http https imap imaps ldap ldaps mqtt pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL threadsafe TLS-SRP UnixSockets zstd

operating system

Linux darkstar.example.net 5.19.16 #1 SMP PREEMPT_DYNAMIC Sat Oct 15 14:42:05 CDT 2022 x86_64 Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz GenuineIntel GNU/Linux

[bagder]

Please provide us with a full sequence of what you do when you build. You presumably did something before make.

[bagder]

If you cannot build it. How can you provide the curl -V output?

[esdrasdemorais]

Hi Daniel, this is the current curl -v command. Esdras de Morais da Silva ***@***.***

…

On Sun, Dec 18, 2022 at 5:19 PM Daniel Stenberg ***@***.***> wrote: If you cannot build it. How can you provide the curl -V output? — Reply to this email directly, view it on GitHub <#10110 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABATZHBWVKJO3YWUCSBTD4TWN6LW3ANCNFSM6AAAAAATCSB37A> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[esdrasdemorais]

Perhaps can be useful. Esdras de Morais da Silva ***@***.*** On Mon, Dec 19, 2022 at 3:29 PM Esdras de Morais ***@***.***> wrote:

…

Hi Daniel, this is the current curl -v command. Esdras de Morais da Silva ***@***.*** On Sun, Dec 18, 2022 at 5:19 PM Daniel Stenberg ***@***.***> wrote: > If you cannot build it. How can you provide the curl -V output? > > — > Reply to this email directly, view it on GitHub > <#10110 (comment)>, or > unsubscribe > <https://github.com/notifications/unsubscribe-auth/ABATZHBWVKJO3YWUCSBTD4TWN6LW3ANCNFSM6AAAAAATCSB37A> > . > You are receiving this because you authored the thread.Message ID: > ***@***.***> >

[maxbritov]

Same for me

libtool: compile:  x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/include -I../lib -I/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/lib -DBUILDING_LIBCURL -DCURL_HIDDEN_SYMBOLS -isystem /usr/include/nss -isystem /usr/include/nspr -fvisibility=hidden -O2 -march=native -pipe -Werror-implicit-function-declaration -c /var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/lib/md4.c  -fPIC -DPIC -o .libs/libcurl_la-md4.o
/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/lib/md4.c: In function 'Curl_md4it':
/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/lib/md4.c:500:3: error: unknown type name 'MD4_CTX'
  500 |   MD4_CTX ctx;
      |   ^~~~~~~
/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/lib/md4.c:502:3: error: implicit declaration of function 'MD4_Init'; did you mean 'md4_init'? [-Werror=implicit-function-declaration]
  502 |   MD4_Init(&ctx);
      |   ^~~~~~~~
      |   md4_init
/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/lib/md4.c:503:3: error: implicit declaration of function 'MD4_Update'; did you mean 'md4_update'? [-Werror=implicit-function-declaration]
  503 |   MD4_Update(&ctx, input, curlx_uztoui(len));
      |   ^~~~~~~~~~
      |   md4_update
/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0/lib/md4.c:504:3: error: implicit declaration of function 'MD4_Final' [-Werror=implicit-function-declaration]
  504 |   MD4_Final(output, &ctx);
      |   ^~~~~~~~~
cc1: some warnings being treated as errors
make[2]: *** [Makefile:2599: libcurl_la-md4.lo] Error 1
make[2]: Leaving directory '/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0-abi_x86_64.amd64/lib'
make[1]: *** [Makefile:1462: all] Error 2
make[1]: Leaving directory '/var/tmp/portage/net-misc/curl-7.87.0/work/curl-7.87.0-abi_x86_64.amd64/lib'
make: *** [Makefile:1245: all-recursive] Error 1
 * ERROR: net-misc/curl-7.87.0::gentoo failed (compile phase):

[esdrasdemorais]

Sorry but I am not understanding you.

…

On Mon, Dec 19, 2022, 3:35 PM wojtekxtx ***@***.***> wrote: @bagder <https://github.com/bagder> by mocking, using sth like msw — Reply to this email directly, view it on GitHub <#10110 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABATZHDHD7BGTL3ECFHWEM3WOCTGZANCNFSM6AAAAAATCSB37A> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[maxbritov]

This code should always fail MD4 build with gnutls and openssl enabled

#if defined(USE_GNUTLS)
#include <nettle/md4.h>
/* When OpenSSL or wolfSSL is available, we use their MD4 functions. */
#elif defined(USE_OPENSSL) && !defined(OPENSSL_NO_MD4)
#include <openssl/md4.h>
#endif

[bagder]

should?

I can build curl fine with both and it does not fail on this.

[maxbritov]

I can't :(
./configure --without-gnutls --with-openssl builds fine
./configure --with-gnutls --with-openssl fails with #10110 (comment)

[maxbritov]

also see gentoo issue https://bugs.gentoo.org/887833

[bagder]

I suggest that someone that can reproduce the problem works on a fix. I cannot reproduce.

[maxbritov]

May be you have openssl with OPENSSL_NO_MD4?

I see logic with my openssl 1.1.1:

#if defined(USE_GNUTLS)
true #include <nettle/md4.h>
#elif defined(USE_WOLFSSL) && !defined(WOLFSSL_NO_MD4)
skipped #include <wolfssl/openssl/md4.h>
#elif defined(USE_OPENSSL) && !defined(OPENSSL_NO_MD4)
skipped #include <openssl/md4.h>
... skipped too
#endif

nettle/md4.h included, openssl/md4.h not

#if defined(USE_WOLFSSL) && !defined(WOLFSSL_NO_MD4)
false
#elif defined(USE_OPENSSL) && !defined(OPENSSL_NO_MD4)
true
skipped  #elif defined(USE_GNUTLS)
...skipped
#endif /* CRYPTO LIBS */

void Curl_md4it(unsigned char *output, const unsigned char *input,
                const size_t len)
{
  MD4_CTX ctx;

  MD4_Init(&ctx);
  MD4_Update(&ctx, input, curlx_uztoui(len));
  MD4_Final(output, &ctx);
}

And MD4_CTX still unknown here because #elif defined(USE_GNUTLS) skipped.

[maxbritov]

For me it fixed. Curl is great again :)
Thanks!