mips64el: gcc: Fix an issue causing runtime failures with Glibc >= 2.41

The issue causes some units "requiring executable stack," notably
libgcc_s.so.1.  Glibc does not allow dlopen()ing such an unit now.

chapter05/gcc-pass1.xml

@@ -43,6 +43,14 @@
   <sect2 role="installation">
     <title>Installation of Cross GCC</title>
 
+    <!-- https://gcc.gnu.org/r15-3205
+         If unfixed it'll make libgcc_s.so.1 requiring execstack and
+         blow up Glibc >= 2.41 tests.  -->
+    <para>At first, fix an issue causing runtime failures with Glibc-2.41 or
+    newer:</para>
+
+    <screen><userinput remap="pre">sed '/mips16.S/s|^//||' -i libgcc/config/mips/lib1funcs.S</userinput></screen>
+
     <para>GCC requires the GMP, MPFR and MPC packages. As these packages may
     not be included in your host distribution, they will be built with
     GCC.  Unpack each package into the GCC source directory and rename the

chapter06/gcc-pass2.xml

@@ -47,6 +47,12 @@
 
     <screen><userinput remap="pre">patch -Np1 -i ../&gcc-upstream-fixes-patch;</userinput></screen>
 -->
+
+    <para>Again, fix the issue causing runtime failures with Glibc-2.41 or
+    newer:</para>
+
+    <screen><userinput remap="pre">sed '/mips16.S/s|^//||' -i libgcc/config/mips/lib1funcs.S</userinput></screen>
+
     <para>As in the first build of GCC, the GMP, MPFR, and MPC packages are
     required. Unpack the tarballs and move them into the required directories:</para>
 

chapter08/gcc.xml

@@ -41,6 +41,11 @@
   <sect2 role="installation">
     <title>Installation of GCC</title>
 
+    <para>Again, fix the issue causing runtime failures with Glibc-2.41 or
+    newer:</para>
+
+    <screen><userinput remap="pre">sed '/mips16.S/s|^//||' -i libgcc/config/mips/lib1funcs.S</userinput></screen>
+
     <para>For building on 64-bit MIPS, change the default directory name for
     64-bit libraries to <quote>lib</quote>:</para>