ruby: Fix reproducibility issue with LDFLAGS

If we add DEBUG_PREFIX_MAP into LDFLAGS, ruby and ruby-dbg are no
longer reproducible.  Fix this.

(From OE-Core rev: c34d5e409b291e69d6ff28ee71acba7055ef3f08)

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/ruby/ruby/0002-template-Makefile.in-filter-out-f-prefix-map.patch

@@ -0,0 +1,42 @@
+Subject: [PATCH] template/Makefile.in: filter out -f*prefix-map
+
+If we add DEBUG_PREFIX_MAP into LDFLAGS, ruby and ruby-dbg are no longer
+reproducible.  Fix this.
+
+Upstream-Status: Inapproppriate [oe-core specific]
+Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
+---
+--- a/tool/mjit_archflag.sh
++++ b/tool/mjit_archflag.sh
+@@ -7,6 +7,20 @@ quote() {
+     echo
+ }
+ 
++quote_filtered() {
++    printf "#${indent}define $1"
++    while shift && [ "$#" -gt 0 ]; do
++	case "$1" in
++	    -ffile-prefix-map=*|-fdebug-prefix-map=*|-fmacro-prefix-map=*)
++		;;
++	    *)
++		printf ' "%s"'$sep "$1"
++		;;
++	esac
++    done
++    echo
++}
++
+ archs=""
+ arch_flag=""
+ 
+--- a/template/Makefile.in
++++ b/template/Makefile.in
+@@ -666,7 +666,7 @@ mjit_config.h:
+ 	quote "MJIT_OPTFLAGS   " $(MJIT_OPTFLAGS); \
+ 	quote "MJIT_DEBUGFLAGS " $(MJIT_DEBUGFLAGS); \
+ 	quote "MJIT_LDSHARED   " ; \
+-	quote "MJIT_DLDFLAGS    MJIT_ARCHFLAG" $(MJIT_DLDFLAGS); \
++	quote_filtered "MJIT_DLDFLAGS    MJIT_ARCHFLAG" $(MJIT_DLDFLAGS); \
+ 	quote "MJIT_LIBS       " $(LIBRUBYARG_SHARED); \
+ 	quote 'PRELOADENV       "@PRELOADENV@"'; \
+ 	indent=$${archs:+'  '}; \

meta/recipes-devtools/ruby/ruby_3.0.2.bb

@@ -6,6 +6,7 @@ SRC_URI += " \
            file://remove_has_include_macros.patch \
            file://run-ptest \
            file://0001-template-Makefile.in-do-not-write-host-cross-cc-item.patch \
+           file://0002-template-Makefile.in-filter-out-f-prefix-map.patch \
            "
 
 SRC_URI[sha256sum] = "5085dee0ad9f06996a8acec7ebea4a8735e6fac22f22e2d98c3f2bc3bef7e6f1"