https://bugs.gentoo.org/803371
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80196
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100017
--- a/configure
+++ b/configure
@@ -17044,7 +17044,7 @@ else
 fi


-RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
+RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET -nostdinc++"

 { $as_echo "$as_me:${as_lineno-$LINENO}: checking where to find the target ar" >&5
 $as_echo_n "checking where to find the target ar... " >&6; }
--- a/configure.ac
+++ b/configure.ac
@@ -3529,7 +3529,7 @@ ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)

-RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
+RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET -nostdinc++"

 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])