Disable libgfortran 10 and 16 byte REAL - it requires either _Float12…

…8 or 10 and 16 byte long double

libgfortran/configure

@@ -6224,7 +6224,7 @@ fi
 # or floating point numbers – or may want to reduce the libgfortran size
 # although they do have the support.
 LIBGOMP_CHECKED_INT_KINDS="1 2 4 8 16"
-LIBGOMP_CHECKED_REAL_KINDS="4 8 10 16"
+LIBGOMP_CHECKED_REAL_KINDS="4 8"
 
 
 

libgfortran/configure.ac

@@ -225,7 +225,7 @@ AM_CONDITIONAL(LIBGFOR_MINIMAL, [test "x${target_cpu}" = xnvptx])
 # or floating point numbers – or may want to reduce the libgfortran size
 # although they do have the support.
 LIBGOMP_CHECKED_INT_KINDS="1 2 4 8 16"
-LIBGOMP_CHECKED_REAL_KINDS="4 8 10 16"
+LIBGOMP_CHECKED_REAL_KINDS="4 8"
 
 AC_SUBST(LIBGOMP_CHECKED_INT_KINDS)
 AC_SUBST(LIBGOMP_CHECKED_REAL_KINDS)

libgfortran/mk-kinds-h.sh

@@ -68,22 +68,23 @@ for k in $possible_real_kinds; do
       # If we have a REAL(KIND=10), it is always long double
       10) ctype="long double" ; cplxtype="complex long double" ; suffix="l" ;;
       # If we have a REAL(KIND=16), it is either long double or _Float128
-      16) if [ $long_double_kind -ne 16 ]; then
-	    ctype="_Float128"
-	    cplxtype="_Complex _Float128"
-	    echo "#define GFC_REAL_16_IS_FLOAT128"
-	    if [ x$use_iec_60559 = xyes ]; then
-	      suffix="f128"
-	      echo "#define GFC_REAL_16_USE_IEC_60559"
-	    else
-	      suffix="q"
-	    fi
-	  else
-	    ctype="long double"
-	    cplxtype="complex long double"
-	    suffix="l"
-	    echo "#define GFC_REAL_16_IS_LONG_DOUBLE"
-	  fi ;;
+      16)
+        if [ $long_double_kind -ne 16 ]; then
+          ctype="_Float128"
+          cplxtype="_Complex _Float128"
+          echo "#define GFC_REAL_16_IS_FLOAT128"
+          if [ x$use_iec_60559 = xyes ]; then
+            suffix="f128"
+            echo "#define GFC_REAL_16_USE_IEC_60559"
+          else
+            suffix="q"
+          fi
+        else
+          ctype="long double"
+          cplxtype="complex long double"
+          suffix="l"
+          echo "#define GFC_REAL_16_IS_LONG_DOUBLE"
+        fi ;;
       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
     esac