diff --git a/include/shlib-compat.h b/include/shlib-compat.h index 537851d753..6c423c8cb0 100644 --- a/include/shlib-compat.h +++ b/include/shlib-compat.h @@ -53,6 +53,14 @@ # define SHLIB_COMPAT(lib, introduced, obsoleted) \ _LIB_COMPAT (lib, introduced, obsoleted) +/* Like SHLIB_COMPAT, but it can check versions in other libraries. It is + not always false for !IS_IN (LIB). */ +#define OTHER_SHLIB_COMPAT(lib, introduced, obsoleted) \ + _OTHER_SHLIB_COMPAT (lib, introduced, obsoleted) +#define _OTHER_SHLIB_COMPAT(lib, introduced, obsoleted) \ + (!(ABI_##lib##_##obsoleted - 0) \ + || ((ABI_##lib##_##introduced - 0) < (ABI_##lib##_##obsoleted - 0))) + /* That header also defines symbols like `VERSION_libm_GLIBC_2_1' to the version set name to use for e.g. symbols first introduced into libm in the GLIBC_2.1 version. Definitions of symbols with explicit @@ -106,6 +114,7 @@ /* Not compiling ELF shared libraries at all, so never any old versions. */ # define SHLIB_COMPAT(lib, introduced, obsoleted) 0 +# define OTHER_SHLIB_COMPAT(lib, introduced, obsoleted) 0 /* No versions to worry about, just make this the global definition. */ # define versioned_symbol(lib, local, symbol, version) \