Version 5.56 of stunnel, but I got the same error on 5.55.  I didn't
report it for 5.55 since 5.56 came out and I had hoped that would fix
it.

The configure line was this:
CC=gcc \
CFLAGS='-O3 -m64 -march=x86-64 -mtune=generic -pipe -std=gnu17' \
./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
--mandir=/usr/man --disable-libwrap --with-pic

Then I did a make -j4.  Should I avoid parallel builds?


On 11/27/19, Flo Rance <trourance@gmail.com> wrote:
> Which version of stunnel ?
>
> On Wed, 27 Nov 2019 at 11:56, Somchai Smythe <buraphalinuxserver@gmail.com>
> wrote:
>
>> How do I fix this?
>>
>> gcc -DHAVE_CONFIG_H -I.  -I/usr/kerberos/include -I/usr/include
>> -DLIBDIR='"/usr/lib/stunnel"' -DCONFDIR='"/etc/stunnel"'   -O3 -m64
>> -march=x86-64 -mtune=generic -pipe -std=gnu17 -pthread -Wall -Wextra
>> -Wpedantic -Wformat=2 -Wconversion -Wno-long-long
>> -Wno-deprecated-declarations -fPIE -fstack-protector
>> -D_FORTIFY_SOURCE=2 -MT stunnel-sthreads.o -MD -MP -MF
>> .deps/stunnel-sthreads.Tpo -c -o stunnel-sthreads.o `test -f
>> 'sthreads.c' || echo './'`sthreads.c
>> sthreads.c: In function 'thread_id_init':
>> sthreads.c:116:5: warning: implicit declaration of function
>> 'CRYPTO_set_id_callback'; did you mean 'CRYPTO_set_locking_callback'?
>> [-Wimplicit-function-declaration]
>>   116 |     CRYPTO_set_id_callback(stunnel_thread_id);
>>       |     ^~~~~~~~~~~~~~~~~~~~~~
>>       |     CRYPTO_set_locking_callback
>>
>> ...
>>
>> libtool: link: ( cd ".libs" && rm -f "libstunnel.la" && ln -s
>> "../libstunnel.la" "libstunnel.la" )
>>
>> /usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../x86_64-pc-linux-gnu/bin/ld:
>> stunnel-sthreads.o: in function `sthreads_init':
>> sthreads.c:(.text+0xb0): undefined reference to `CRYPTO_set_id_callback'
>>
>> /usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../x86_64-pc-linux-gnu/bin/ld:
>> stunnel-sthreads.o: in function `thread_id_init':
>> sthreads.c:(.text+0x3a): undefined reference to `CRYPTO_set_id_callback'
>> collect2: error: ld returned 1 exit status
>> make[2]: *** [Makefile:550: stunnel] Error 1
>>
>> I'm using openssl-1.1.1d if it matters.
>> _______________________________________________
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>> stunnel-users@stunnel.org
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>>
>