Do not detect host automatically

build.xml

@@ -111,6 +111,9 @@
   <exec executable="patch" dir="${builddir}/gcc-11.1.0" failonerror="true">
    <arg line="-Np1 -i ${basedir}/packages/gcc/gcc-11.1.0-fix_fenv_t.patch"/>
   </exec>
+  <exec executable="patch" dir="${builddir}/gcc-11.1.0" failonerror="true">
+   <arg line="-Np1 -i ${basedir}/packages/gcc/gcc-11.1.0-fix_host_detect.patch"/>
+  </exec>
   <exec executable="bash" dir="${builddir}/gcc-11.1.0" failonerror="true">
    <arg value="-c"/>
    <arg value="sed -e 's@/lib\(64\)\?\(32\)\?/ld@/tools&amp;@g' -e 's@/usr@/tools@g' -i gcc/config/linux.h"/>

gcc-11.1.0-fix_host_detect.patch

+diff -uNr gcc-11.1.0/gcc/config/aarch64/aarch64.h gcc-11.1.0-fix_host_detect/gcc/config/aarch64/aarch64.h
+--- gcc-11.1.0/gcc/config/aarch64/aarch64.h	2021-04-27 20:00:13.000000000 +1000
++++ gcc-11.1.0-fix_host_detect/gcc/config/aarch64/aarch64.h	2025-11-17 10:38:36.782562378 +1100
+@@ -1236,21 +1236,8 @@
+ #define MCPU_TO_MARCH_SPEC_FUNCTIONS \
+   { "rewrite_mcpu", aarch64_rewrite_mcpu },
+ 
+-#if defined(__aarch64__)
+-extern const char *host_detect_local_cpu (int argc, const char **argv);
+-#define HAVE_LOCAL_CPU_DETECT
+-# define EXTRA_SPEC_FUNCTIONS						\
+-  { "local_cpu_detect", host_detect_local_cpu },			\
+-  MCPU_TO_MARCH_SPEC_FUNCTIONS
+-
+-# define MCPU_MTUNE_NATIVE_SPECS					\
+-   " %{march=native:%<march=native %:local_cpu_detect(arch)}"		\
+-   " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}"		\
+-   " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
+-#else
+-# define MCPU_MTUNE_NATIVE_SPECS ""
+-# define EXTRA_SPEC_FUNCTIONS MCPU_TO_MARCH_SPEC_FUNCTIONS
+-#endif
++#define MCPU_MTUNE_NATIVE_SPECS ""
++#define EXTRA_SPEC_FUNCTIONS MCPU_TO_MARCH_SPEC_FUNCTIONS
+ 
+ #define ASM_CPU_SPEC \
+    MCPU_TO_MARCH_SPEC