Currently we set _WIN32_WINNT at various places in the codebase; this is used to target a minimum Windows version we want to support. See also for more detailled information : https://docs.microsoft.com/en-us/windows/win32/winprog/using-the-windows-headers?redirectedfrom=MSDN#setting-winver-or-_win32_winnt Macros for Conditional Declarations "Certain functions that depend on a particular version of Windows are declared using conditional code. This enables you to use the compiler to detect whether your application uses functions that are not supported on its target version(s) of Windows."
However currently we have quite a lot of differing settings of _WIN32_WINNT in the codebase ; setting _WIN32_WINNT to 0x0601 (Windows 7) where possible would make sense because we have this setting already at java_props_md.c (so targeting older Windows versions at other places is most likely not useful). ------------- Commit messages: - JDK-8285730 Changes: https://git.openjdk.java.net/jdk/pull/8428/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8428&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8285730 Stats: 14 lines in 7 files changed: 1 ins; 0 del; 13 mod Patch: https://git.openjdk.java.net/jdk/pull/8428.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/8428/head:pull/8428 PR: https://git.openjdk.java.net/jdk/pull/8428
