Cannot build on Debian stretch

[possientis]

I have never reported an issue here before. I hope I am not infringing on some important protocol I should know about. Please feel free to suggest ways of improving my reports going forward.

$ uname -a
Linux front 4.8.0-1-amd64 #1 SMP Debian 4.8.7-1 (2016-11-13) x86_64 GNU/Linux

$ ./autogen.sh
...

$ ./configure
...

$ make
gcc -I. -g -O2 -Wall -Wextra -Wno-unused-function -c src/gen_context.c -o gen_context.o
gcc gen_context.o -o gen_context
./gen_context
  CC       src/libsecp256k1_la-secp256k1.lo
  CCLD     libsecp256k1.la
/usr/bin/ar: `u' modifier ignored since `D' is the default (see `U')
  CC       src/tests-tests.o
src/tests.c: In function ‘test_ecdsa_der_parse’:
src/tests.c:3702:52: error: dereferencing pointer to incomplete type ‘ECDSA_SIG 
{aka struct ECDSA_SIG_st}’  valid_openssl = !BN_is_negative(sig_openssl->r) &&
!BN_is_negative(sig_openssl->s) && BN_num_bits(sig_openssl->r) > 0 &&
BN_num_bits(sig_openssl->r) <= 256 && BN_num_bits(sig_openssl->s) > 0 &&
 BN_num_bits(sig_openssl->s) <= 256;
                                            ^~
Makefile:1050: recipe for target 'src/tests-tests.o' failed
make: *** [src/tests-tests.o] Error 1

However, everything works fine (including make check) with:

$ ./configure --enable-openssl-tests=no

[apoelstra]

Can you confirm that the latest master (since #433 was merged) compiles correctly?

Thanks for the report.

[possientis]

Master branch all good for me

$uname
Linux Server22929-server 4.9.0-4-amd64 #1 SMP Debian 4.9.51-1 (2017-09-28) x86_64 GNU/Linux

Problem still appear.
Work when:

$ ./configure --enable-openssl-tests=no