Fix WIFEXITED missing from MinGW/MSYS2 (#2609)

* WIFEXITED missing from MinGW/MSYS2, added defines * Found source of the WIFEXITED macro in the binutils-gdb repo. Now with less pointer manipulation.
verilator · Oct 27, 2020 · 77ac9bf · 77ac9bf
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commit 77ac9bf
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diff --git a/docs/CONTRIBUTORS b/docs/CONTRIBUTORS
@@ -27,6 +27,7 @@ James Hutchinson
 Jamey Hicks
 James Pallister
 Jan Van Winkel
+Jean Berniolles
 Jeremy Bennett
 John Coiner
 John Demme

diff --git a/src/V3Os.cpp b/src/V3Os.cpp
@@ -49,6 +49,14 @@
 # include <direct.h>  // mkdir
 # include <psapi.h>   // GetProcessMemoryInfo
 # include <thread>
+// These macros taken from gdbsupport/gdb_wait.h in binutils-gdb
+# ifndef WIFEXITED
+#  ifdef __MINGW32__
+#   define WIFEXITED(w)	(((w) & 0xC0000000) == 0)
+#  else
+#   define WIFEXITED(w)	(((w) & 0377) == 0)
+#  endif
+# endif
 #else
 # include <sys/time.h>
 # include <sys/wait.h> // Needed on FreeBSD for WIFEXITED