AC_CHECK_DECLS([asprintf, environ, getc_unlocked, stpcpy, strnlen])
-# Link in zlib if we can. This allows us to read compressed debug
+# Link in zlib/zstd if we can. This allows us to read compressed debug
# sections. This is used only by readelf.c (objdump uses bfd for
# reading compressed sections).
AM_ZLIB
+AC_ZSTD
BFD_BINARY_FOPEN