Steps to reproduce on master (fecf436d5327717801da84beb3066f5a9b80ea8e):
 0$ ./configure --host=riscv64-linux-gnu
 1$ make clean
 2$ $ make
 3  CC       src/bench.o
 4gcc -DHAVE_CONFIG_H -I. -I./src -O2  -std=c89 -pedantic -Wno-long-long -Wnested-externs -Wshadow -Wstrict-prototypes -Wundef -Wno-overlength-strings -Wall -Wno-unused-function -Wextra -Wcast-align -Wcast-align=strict -fvisibility=hidden -g -O2 -c src/gen_context.c -o gen_context.o
 5gcc -O2  -std=c89 -pedantic -Wno-long-long -Wnested-externs -Wshadow -Wstrict-prototypes -Wundef -Wno-overlength-strings -Wall -Wno-unused-function -Wextra -Wcast-align -Wcast-align=strict -fvisibility=hidden -g -O2  gen_context.o -o gen_context
 6./gen_context
 7  CC       src/libsecp256k1_la-secp256k1.lo
 8src/secp256k1.c: In function ‘secp256k1_declassify’:
 9src/secp256k1.c:227:93: warning: unused parameter ‘p’ [-Wunused-parameter]
10  227 | static SECP256K1_INLINE void secp256k1_declassify(const secp256k1_context* ctx, const void *p, size_t len) {
11      |                                                                                 ~~~~~~~~~~~~^
12src/secp256k1.c:227:103: warning: unused parameter ‘len’ [-Wunused-parameter]
13  227 | static SECP256K1_INLINE void secp256k1_declassify(const secp256k1_context* ctx, const void *p, size_t len) {
14      |                                                                                                ~~~~~~~^~~
15  CCLD     libsecp256k1.la
16  CCLD     bench
17  CC       src/bench_internal-bench_internal.o
18  CCLD     bench_internal
19  CC       src/bench_ecmult-bench_ecmult.o
20  CCLD     bench_ecmult
21  CC       src/tests-tests.o
22In file included from src/tests.c:17:
23src/secp256k1.c: In function ‘secp256k1_declassify’:
24src/secp256k1.c:227:93: warning: unused parameter ‘p’ [-Wunused-parameter]
25  227 | static SECP256K1_INLINE void secp256k1_declassify(const secp256k1_context* ctx, const void *p, size_t len) {
26      |                                                                                 ~~~~~~~~~~~~^
27src/secp256k1.c:227:103: warning: unused parameter ‘len’ [-Wunused-parameter]
28  227 | static SECP256K1_INLINE void secp256k1_declassify(const secp256k1_context* ctx, const void *p, size_t len) {
29      |                                                                                                ~~~~~~~^~~
30  CCLD     tests
31  CC       src/valgrind_ctime_test.o
32  CCLD     valgrind_ctime_test
33  CC       src/exhaustive_tests-tests_exhaustive.o
34  CCLD     exhaustive_tests