Hi, we got some problem with building PostgreSQL (version 15.1) on linux ldd —version returns ldd (Debian GLIBC 2.31-13+deb11u5.tmw1) 2.31
we can build it all right, however we want to use binaries on different glibc version so we’re detecting usage of the glibc version > 2.17 and we need to prevent usage of symbols (like explicit_bzero), that wasn’t exist in glibc 2.17. what we see that even if I commented line $as_echo "#define HAVE_EXPLICIT_BZERO 1" >>confdefs.h from configure we still have a problem - symbol explicit_bzero was leaked in lib/libpq.so.5.15, bin/postgres, bin/pg_verifybackup I was able to verify that HAVE_EXPLICIT_BZERO wasn’t defined in all c files that use explicit_bzero: ./src/interfaces/libpq/fe-connect.c ./src/backend/libpq/be-secure-common.c ./src/common/hmac_openssl.c ./src/common/cryptohash.c ./src/common/cryptohash_openssl.c ./src/common/hmac.c how we can guaranty that if HAVE_EXPLICIT_BZERO is not defined then explicit_bzero function implemented in port/explicit_bzero.c will be used (just like in Darwin or windows) thanks in advance dm
