nixpkgs/pkgs/development/libraries/libx86/constants.patch

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--- libx86/lrmi.c 2008-09-06 12:24:36.070136428 +0200
+++ libx86/lrmi.c 2008-09-06 12:28:10.584287458 +0200
@@ -56,5 +56,17 @@
#if defined(__linux__)
+#ifndef TF_MASK
+#define TF_MASK X86_EFLAGS_TF
+#endif
+#ifndef IF_MASK
+#define IF_MASK X86_EFLAGS_IF
+#endif
+#ifndef IOPL_MASK
+#define IOPL_MASK X86_EFLAGS_IOPL
+#endif
+#ifndef VIF_MASK
+#define VIF_MASK X86_EFLAGS_VIF
+#endif
#define DEFAULT_VM86_FLAGS (IF_MASK | IOPL_MASK)
#elif defined(__NetBSD__) || defined(__FreeBSD__)
#define DEFAULT_VM86_FLAGS (PSL_I | PSL_IOPL)