diff --git a/libiberty/configure b/libiberty/configure
index bb0e20403710..ed656bcb8c89 100755
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -5308,7 +5308,7 @@ esac
     libiberty_cv_var_sys_errlist=yes
     ;;
 
-  *-*-msdosdjgpp)
+  *-*-msdosdjgpp*)
     # vfork and fork are stubs.
     ac_cv_func_vfork_works=no
     ;;
diff --git a/libiberty/configure.ac b/libiberty/configure.ac
index 705bc6b07da9..b1716081c8cd 100644
--- a/libiberty/configure.ac
+++ b/libiberty/configure.ac
@@ -445,7 +445,7 @@ if test -z "${setobjs}"; then
     libiberty_cv_var_sys_errlist=yes
     ;;
 
-  *-*-msdosdjgpp)
+  *-*-msdosdjgpp*)
     # vfork and fork are stubs.
     ac_cv_func_vfork_works=no
     ;;