File gmp-gcs.patch of Package gmp

--- gmp-6.3.0/configure.ac.orig	2025-10-23 21:48:56.352795060 +0200
+++ gmp-6.3.0/configure.ac	2025-10-23 21:49:59.732815289 +0200
@@ -3779,6 +3779,10 @@ if test "$gmp_asm_syntax_testing" != no;
 		  GMP_DEFINE_RAW(["define(<ARM64_FEATURE_PAC_DEFAULT>,<$ARM64_FEATURE_PAC_DEFAULT>)"])
 	      AC_SUBST([ARM64_FEATURE_PAC_DEFAULT])
 
+              GMP_GET_MACRO_VALUE([__ARM_FEATURE_GCS_DEFAULT], [ARM64_FEATURE_GCS_DEFAULT], [0])
+                  GMP_DEFINE_RAW(["define(<ARM64_FEATURE_GCS_DEFAULT>,<$ARM64_FEATURE_GCS_DEFAULT>)"])
+              AC_SUBST([ARM64_FEATURE_GCS_DEFAULT])
+
 	      GMP_GET_MACRO_VALUE([__ELF__], [ARM64_ELF], [0])
 		  GMP_DEFINE_RAW(["define(<ARM64_ELF>,<$ARM64_ELF>)"])
           esac
--- gmp-6.3.0/mpn/arm64/arm64-defs.m4.orig	2025-10-23 21:50:14.708811044 +0200
+++ gmp-6.3.0/mpn/arm64/arm64-defs.m4	2025-10-23 21:56:17.723037919 +0200
@@ -80,6 +80,14 @@ ifelse(ARM64_FEATURE_PAC_DEFAULT, `1',
      define(`GNU_PROPERTY_AARCH64_POINTER_AUTH', `0')'
 ')
 
+dnl if GCS we need to indicate the valid GCS support for gnu notes.
+
+
+ifelse(ARM64_FEATURE_GCS_DEFAULT, `1',
+  `define(`GNU_PROPERTY_AARCH64_GCS', `1'),
+  `define(`GNU_PROPERTY_AARCH64_GCS', `0')'
+')
+
 dnl NOTE OVERRIDES asm-defs.m4 definition for arch specific functionality
 dnl
 dnl Usage: PROLOGUE_cpu(GSYM_PREFIX`'foo[,param])
@@ -125,7 +133,7 @@ define(`ADD_GNU_NOTES_IF_NEEDED', `
       .asciz "GNU";
       .long 0xc0000000; /* GNU_PROPERTY_AARCH64_FEATURE_1_AND */
       .long 4;
-      .long eval(indir(`GNU_PROPERTY_AARCH64_POINTER_AUTH') + indir(`GNU_PROPERTY_AARCH64_BTI'));
+      .long eval(indir(`GNU_PROPERTY_AARCH64_POINTER_AUTH') + indir(`GNU_PROPERTY_AARCH64_BTI') + indir(`GNU_PROPERTY_AARCH64_GCS') );
       .long 0;
       .popsection;
     ')