configure: add an explicit static and plugins check

Moving this check earlier will make the later re-factor for enabling
by default a bit neater.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210709143005.1554-31-alex.bennee@linaro.org>
diff --git a/configure b/configure
index e2a353c..2c39ccf 100755
--- a/configure
+++ b/configure
@@ -2197,11 +2197,14 @@
   error_exit "Can't enable module-upgrades as Modules are not enabled"
 fi
 
-# Static linking is not possible with modules or PIE
+# Static linking is not possible with plugins, modules or PIE
 if test "$static" = "yes" ; then
   if test "$modules" = "yes" ; then
     error_exit "static and modules are mutually incompatible"
   fi
+  if test "$plugins" = "yes"; then
+    error_exit "static and plugins are mutually incompatible"
+  fi
 fi
 
 # Unconditional check for compiler __thread support
@@ -3979,7 +3982,7 @@
       "Plugin support requires dynamic linking and specifying a set of symbols " \
       "that are exported to plugins. Unfortunately your linker doesn't " \
       "support the flag (--dynamic-list or -exported_symbols_list) used " \
-      "for this purpose. You can't build with --static."
+      "for this purpose."
 fi
 
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