Error while installing libwally

I am trying to install libwally on my debian machine. I followed the installation guide but running ./configure I got the warning

=== configuring in src/secp256k1 (/home/standup/libwally-core/src/secp256k1)configure: WARNING: no configuration information is in src/secp256k1

so when I run make I get the error

Making all in srcmake[1]: Entering directory '/home/standup/libwally-core/src'make  all-recursivemake[2]: Entering directory '/home/standup/libwally-core/src'Making all in secp256k1make[3]: Entering directory '/home/standup/libwally-core/src/secp256k1'make[3]: *** No rule to make target 'all'.  Stop.make[3]: Leaving directory '/home/standup/libwally-core/src/secp256k1'make[2]: *** [Makefile:1715: all-recursive] Error 1make[2]: Leaving directory '/home/standup/libwally-core/src'make[1]: *** [Makefile:927: all] Error 2make[1]: Leaving directory '/home/standup/libwally-core/src'make: *** [Makefile:436: all-recursive] Error 1

I see that it's an issue with the secp256k1 so I did some research and found this suggestion to install secp256k1 seperately in the /src directory (I simply cloned the repo and built it within /src).This brought me a bit further (no warning while running ./configure) but I still get this error after running make:

Making all in srcmake[1]: Entering directory '/home/standup/libwally-core/src'make  all-recursivemake[2]: Entering directory '/home/standup/libwally-core/src'Making all in secp256k1make[3]: Entering directory '/home/standup/libwally-core/src/secp256k1'make  all-ammake[4]: Entering directory '/home/standup/libwally-core/src/secp256k1'make[4]: Nothing to be done for 'all-am'.make[4]: Leaving directory '/home/standup/libwally-core/src/secp256k1'make[3]: Leaving directory '/home/standup/libwally-core/src/secp256k1'make[3]: Entering directory '/home/standup/libwally-core/src'  CC       ctest/test_bech32-test_bech32.o  CC       libwallycore_la-address.loIn file included from address.c:1:internal.h:8:10: fatal error: secp256k1/include/secp256k1_ecdsa_s2c.h: No such file or directory    8 | #include "secp256k1/include/secp256k1_ecdsa_s2c.h"      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~compilation terminated.make[3]: *** [Makefile:1324: libwallycore_la-address.lo] Error 1make[3]: Leaving directory '/home/standup/libwally-core/src'make[2]: *** [Makefile:1715: all-recursive] Error 1make[2]: Leaving directory '/home/standup/libwally-core/src'make[1]: *** [Makefile:927: all] Error 2make[1]: Leaving directory '/home/standup/libwally-core/src'make: *** [Makefile:436: all-recursive] Error 1

There is no secp256k1/include/secp256k1_ecdsa_s2c.h file ...

How can I fix this? It already seemed strange to me that I had to install the secp256k1 manually...