[rtems-tools commit] _libelf_config.h: Add removed Cygwin code

[Joel Sherrill]

Module:    rtems-tools
Branch:    master
Commit:    40529bc566105be801481880a385a750bed44d36
Changeset: http://git.rtems.org/rtems-tools/commit/?id=40529bc566105be801481880a385a750bed44d36

Author:    Ryan Long <ryan.long at oarcorp.com>
Date:      Wed Oct 12 08:44:38 2022 -0500

_libelf_config.h: Add removed Cygwin code

This code was removed for some reason. Without it, we are unable to build
RTEMS with Cygwin.

---

 rtemstoolkit/elftoolchain/libelf/_libelf_config.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/rtemstoolkit/elftoolchain/libelf/_libelf_config.h b/rtemstoolkit/elftoolchain/libelf/_libelf_config.h
index 0f16f3a..16b5f0b 100644
--- a/rtemstoolkit/elftoolchain/libelf/_libelf_config.h
+++ b/rtemstoolkit/elftoolchain/libelf/_libelf_config.h
@@ -189,3 +189,25 @@
 #endif
 
 #endif /* defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) */
+
+#if defined(__WIN32__) || defined(__CYGWIN__)
+
+#define LIBELF_VCSID(ID)
+
+#if     defined(__amd64__)
+
+#define LIBELF_ARCH             EM_X86_64
+#define LIBELF_BYTEORDER        ELFDATA2LSB
+#define LIBELF_CLASS            ELFCLASS64
+
+#elif   defined(__i386__)
+
+#define LIBELF_ARCH             EM_386
+#define LIBELF_BYTEORDER        ELFDATA2LSB
+#define LIBELF_CLASS            ELFCLASS32
+
+#else
+#error  Unknown Windows architecture.
+#endif
+
+#endif  /* __WIN32__ || __CYGWIN__ */