Fix configure check for typeof

config/c-compiler.m4

@@ -199,7 +199,7 @@ if test "$pgac_cv_c_typeof" != no; then
   AC_DEFINE(HAVE_TYPEOF, 1,
             [Define to 1 if your compiler understands `typeof' or something similar.])
   if test "$pgac_cv_c_typeof" != typeof; then
-    AC_DEFINE(typeof, $pgac_cv_c_typeof, [Define to how the compiler spells `typeof'.])
+    AC_DEFINE_UNQUOTED(typeof, $pgac_cv_c_typeof, [Define to how the compiler spells `typeof'.])
   fi
 fi])# PGAC_C_TYPEOF
 

configure

@@ -11704,7 +11704,9 @@ $as_echo "#define HAVE_TYPEOF 1" >>confdefs.h
 
   if test "$pgac_cv_c_typeof" != typeof; then
 
-$as_echo "#define typeof \$pgac_cv_c_typeof" >>confdefs.h
+cat >>confdefs.h <<_ACEOF
+#define typeof $pgac_cv_c_typeof
+_ACEOF
 
   fi
 fi