1 files changed, 99 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/mips/configure.ac b/ports/sysdeps/unix/sysv/linux/mips/configure.ac
new file mode 100644
index 0000000000..7087a14a5e
--- /dev/null
+++ b/ports/sysdeps/unix/sysv/linux/mips/configure.ac
@@ -0,0 +1,99 @@
+sinclude(./aclocal.m4)dnl Autoconf lossage
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/mips.
+
+AC_COMPILE_IFELSE(
+  [AC_LANG_PROGRAM([
+    #if (_MIPS_SIM != _ABIO32)
+    #error Not O32 ABI
+    #endif])],
+  [libc_mips_abi=o32],
+  [AC_COMPILE_IFELSE(
+    [AC_LANG_PROGRAM([
+      #if (_MIPS_SIM != _ABIN32)
+      #error Not N32 ABI
+      #endif])],
+    [libc_mips_abi=n32],
+    [AC_COMPILE_IFELSE(
+      [AC_LANG_PROGRAM([
+        #if (_MIPS_SIM != _ABI64)
+        #error Not 64 ABI
+        #endif])],
+      [libc_mips_abi=n64],
+      [])])])
+
+if test -z "$libc_mips_abi"; then
+  AC_MSG_ERROR([could not determine what ABI the compiler is using])
+fi
+
+AC_COMPILE_IFELSE(
+  [AC_LANG_PROGRAM([
+    #if !defined(__mips_soft_float)
+    #error Not soft ABI
+    #endif])],
+  [libc_mips_float=soft],
+  [AC_COMPILE_IFELSE(
+    [AC_LANG_PROGRAM([
+      #if !defined(__mips_hard_float)
+      #error Not hard ABI
+      #endif])],
+    [libc_mips_float=hard],
+    [])])
+
+if test -z "$libc_mips_float"; then
+  AC_MSG_ERROR([could not determine if compiler is using hard or soft floating point ABI])
+fi
+
+AC_CACHE_CHECK([whether the compiler is using the 2008 NaN encoding],
+  libc_cv_mips_nan2008, [AC_EGREP_CPP(yes, [dnl
+#ifdef __mips_nan2008
+yes
+#endif], libc_cv_mips_nan2008=yes, libc_cv_mips_nan2008=no)])
+
+libc_mips_nan=
+if test x"$libc_cv_mips_nan2008" = xyes; then
+  libc_mips_nan=_2008
+fi
+
+LIBC_CONFIG_VAR([default-abi],
+  [${libc_mips_abi}_${libc_mips_float}${libc_mips_nan}])
+
+case "$prefix" in
+/usr | /usr/)
+  # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
+  # Allow earlier configure scripts to handle libc_cv_slibdir, libdir,
+  # and libc_cv_localedir.
+  test -n "$libc_cv_slibdir" || \
+  case $machine in
+  mips/mips64/n64/* )
+    libc_cv_slibdir="/lib64"
+    if test "$libdir" = '${exec_prefix}/lib'; then
+      libdir='${exec_prefix}/lib64';
+      # Locale data can be shared between 32bit and 64bit libraries
+      libc_cv_localedir='${exec_prefix}/lib/locale'
+    fi
+    ;;
+  mips/mips64/n32/* )
+    libc_cv_slibdir="/lib32"
+    if test "$libdir" = '${exec_prefix}/lib'; then
+      libdir='${exec_prefix}/lib32';
+      # Locale data can be shared between 32bit and 64bit libraries
+      libc_cv_localedir='${exec_prefix}/lib/locale'
+    fi
+    ;;
+  *)
+    libc_cv_slibdir="/lib"
+    ;;
+  esac
+esac
+
+libc_cv_gcc_unwind_find_fde=yes
+
+if test -z "$arch_minimum_kernel"; then
+  if test x$libc_cv_mips_nan2008 = xyes; then
+    # FIXME: Adjust this setting to the actual first upstream kernel
+    # version to support the 2008 NaN encoding and then remove this
+    # comment.
+    arch_minimum_kernel=10.0.0
+  fi
+fi