maintainer-feedback requested: [Bug 232060] lang/mono: Fix for Mono build on FreeBSD PowerPC

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<mono at FreeBSD.org> for maintainer-feedback:
Bug 232060: lang/mono: Fix for Mono build on FreeBSD PowerPC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=232060



--- Description ---
Building Mono of FreeBSD/PowerPC (32-bit) fails due to incorrect code in
"mono/utils/mono-sigcontext.h" that prevents Mono from building. 

The below code change patch allows Mono to build:

@@ -363,10 +363,10 @@
 #elif defined(__FreeBSD__)
     typedef ucontext_t os_ucontext;

-    #define UCONTEXT_REG_Rn(ctx, n) ((ctx)->uc_mcontext.mc_gpr [(n)])
-    #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext.mc_fpreg [(n)])
-    #define UCONTEXT_REG_NIP(ctx) ((ctx)->uc_mcontext.mc_srr0)
-    #define UCONTEXT_REG_LNK(ctx) ((ctx)->uc_mcontext.mc_lr)
+    #define UCONTEXT_REG_Rn(ctx, n) (((os_ucontext*)(ctx))->uc_mcontext.mc_gpr
[(n)])
+    #define UCONTEXT_REG_FPRn(ctx, n)
(((os_ucontext*)(ctx))->uc_mcontext.mc_fpreg [(n)])
+    #define UCONTEXT_REG_NIP(ctx) (((os_ucontext*)(ctx))->uc_mcontext.mc_srr0)
+    #define UCONTEXT_REG_LNK(ctx) (((os_ucontext*)(ctx))->uc_mcontext.mc_lr)
 #elif defined(_AIX)
     typedef ucontext_t os_ucontext;