crt: Move isblank from libmingwex.a to individual CRT import libraries
C99 isblank symbol is natively available since msvcr120.dll, so include
mingw-w64 implementation of isblank to CRT import libraries only up to the
msvcr110 version.
This allows to use native isblank symbol for UCRT and msvcr120 builds.
Import libraries msvcr100 and msvcr110 currently do not have version
specific extra library, so define it and include it in MRI scripts.
Signed-off-by: Martin Storsjö <martin@martin.st>
3 files changed
