This is based on the information in #14311 and
https://refspecs.linuxfoundation.org/LSB_3.2.0/LSB-Core-S390X/LSB-Core-S390X.pdf
and https://wiki.debian.org/Multiarch/Tuples.
Fixes #14311.
# error "Unknown RISC-V ABI"
# endif
#elif defined(__s390__)
+ /* s390-linux-gnu */
#elif defined(__s390x__)
+ { "lib64", 0, "usr/lib/s390x-linux-gnu\0"
+ "usr/lib64", "ld-lsb-s390x.so.3" },
+# define KNOW_LIB64_DIRS 1
#elif defined(__sparc__)
#endif
/* gcc doesn't allow pragma to be used within constructs, hence log about this separately below */