Bug#1052142: ghc: Please add patch to restore minimal build support for sparc and sparc64

[John Paul Adrian Glaubitz]

Source: ghc
Version: 9.4.6-1
Severity: normal
Tags: patch
User: debian-sparc at lists.debian.org
Usertags: sparc64
X-Debbugs-Cc: debian-sparc at lists.debian.org

Hello!

When upstream dropped NGC support for SPARC, they also accidentally removed build support
for unregisterised builds by removing sparc* and sparc64* from m4/ghc_convert_cpu.m4 and
m4/fptools_set_haskell_platform_vars.m4 meaning that building on sparc64 is no longer
possible.

The attached patch re-adds sparc and sparc64 to re-enable builds. The problem has also been
reported upstream [1].

Thanks,
Adrian

> [1] https://gitlab.haskell.org/ghc/ghc/-/issues/23959

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
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-------------- next part --------------
Index: ghc-9.4.6/m4/ghc_convert_cpu.m4
===================================================================
--- ghc-9.4.6.orig/m4/ghc_convert_cpu.m4
+++ ghc-9.4.6/m4/ghc_convert_cpu.m4
@@ -68,6 +68,12 @@ case "$1" in
   sh4)
     $2="sh4"
     ;;
+  sparc64*)
+    $2="sparc64"
+    ;;
+  sparc*)
+    $2="sparc"
+    ;;
   vax)
     $2="vax"
     ;;
Index: ghc-9.4.6/m4/fptools_set_haskell_platform_vars.m4
===================================================================
--- ghc-9.4.6.orig/m4/fptools_set_haskell_platform_vars.m4
+++ ghc-9.4.6/m4/fptools_set_haskell_platform_vars.m4
@@ -42,7 +42,7 @@ AC_DEFUN([FPTOOLS_SET_HASKELL_PLATFORM_V
         riscv64)
             test -z "[$]2" || eval "[$]2=ArchRISCV64"
             ;;
-        hppa|hppa1_1|ia64|m68k|nios2|riscv32|rs6000|s390|sh4|vax)
+        hppa|hppa1_1|ia64|m68k|nios2|riscv32|rs6000|s390|sh4|sparc|sparc64|vax)
             test -z "[$]2" || eval "[$]2=ArchUnknown"
             ;;
         *)