Needed with gcc15 due to newly defaulting to c23 (fixed in >=binutils-2.44).

https://bugs.gentoo.org/943715
https://sourceware.org/PR32372
https://inbox.sourceware.org/binutils/cover.1731741209.git.sam@gentoo.org/
(technically the full set of patches is not needed here, but doesn't hurt)
--- a/binutils/bfd/elf32-ppc.c
+++ b/binutils/bfd/elf32-ppc.c
@@ -4354,3 +4354,3 @@
 		      if (!bfd_elf_link_record_dynamic_symbol (info, opt))
-			return false;
+			return NULL;
 		    }
--- a/binutils/bfd/elf32-xtensa.c
+++ b/binutils/bfd/elf32-xtensa.c
@@ -10073,3 +10073,3 @@
 
-  removed = false;
+  removed = NULL;
   if (is_operand_relocation (fix->src_type))
@@ -10144,3 +10144,3 @@
 
-  removed = false;
+  removed = NULL;
   if (is_operand_relocation (ELF32_R_TYPE (orig_rel->rela.r_info)))
--- a/binutils/bfd/elf64-ppc.c
+++ b/binutils/bfd/elf64-ppc.c
@@ -4666,3 +4666,3 @@
 	  if (ent == NULL)
-	    return false;
+	    return NULL;
 	  ent->next = local_got_ents[r_symndx];
--- a/binutils/bfd/mach-o.c
+++ b/binutils/bfd/mach-o.c
@@ -6039,3 +6039,3 @@
   if (ncmd != 1 || uuid_cmd == NULL)
-    return false;
+    return NULL;
   return &uuid_cmd->command.uuid;
--- a/binutils/bfd/xsym.c
+++ b/binutils/bfd/xsym.c
@@ -133,3 +133,3 @@
   if (bfd_seek (abfd, table_offset, SEEK_SET) != 0)
-    return false;
+    return NULL;
   return _bfd_alloc_and_read (abfd, table_size, table_size);
--- a/binutils/binutils/prdbg.c
+++ b/binutils/binutils/prdbg.c
@@ -2820,3 +2820,3 @@
       abort ();
-      return false;
+      return NULL;
     }
--- a/binutils/ld/pdb.c
+++ b/binutils/ld/pdb.c
@@ -177,3 +177,3 @@
       bfd_close (stream);
-      return false;
+      return NULL;
     }
--- a/binutils/opcodes/i386-gen.c
+++ b/binutils/opcodes/i386-gen.c
@@ -32,3 +32,5 @@
    in preference where possible.  */
+#ifndef static_assert
 #define static_assert(e) ((void)sizeof (struct { int _:1 - 2 * !(e); }))
+#endif
 
--- a/binutils/opcodes/mips-formats.h
+++ b/binutils/opcodes/mips-formats.h
@@ -51,3 +51,3 @@
     typedef char ATTRIBUTE_UNUSED \
-      static_assert[(1 << (SIZE)) == ARRAY_SIZE (MAP)]; \
+      static_assert_3[(1 << (SIZE)) == ARRAY_SIZE (MAP)]; \
     static const struct mips_mapped_int_operand op = { \
@@ -85,3 +85,3 @@
     typedef char ATTRIBUTE_UNUSED \
-      static_assert[(1 << (SIZE)) == ARRAY_SIZE (MAP)]; \
+      static_assert_4[(1 << (SIZE)) == ARRAY_SIZE (MAP)]; \
     static const struct mips_reg_operand op = { \
@@ -95,3 +95,3 @@
     typedef char ATTRIBUTE_UNUSED \
-      static_assert[(1 << (SIZE)) == ARRAY_SIZE (MAP)]; \
+      static_assert_5[(1 << (SIZE)) == ARRAY_SIZE (MAP)]; \
     static const struct mips_reg_operand op = { \
--- a/binutils/opcodes/s390-opc.c
+++ b/binutils/opcodes/s390-opc.c
@@ -38,3 +38,5 @@
    in preference where possible.  */
+#ifndef static_assert
 #define static_assert(e) ((void)sizeof (struct { int _:1 - 2 * !(e); }))
+#endif