fix gcc plugin check

Author: AndreasGocht

setup.py

@@ -9,10 +9,13 @@
 if not ("shared=yes" in link_mode):
     raise RuntimeError(
         "Score-P not build with \"--enable-shared\". Link mode is:\n{}".format(link_mode))
-gcc_plugin = scorep.helper.get_scorep_config("GCC plug-in support:")
-if gcc_plugin is not None and not ("yes" in link_mode):
-    raise RuntimeError(
-        "Score-P not build with GCC Compiler Plugin. GCC plug-in support is:\n{}".format(gcc_plugin))
+
+check_compiler = scorep.helper.get_scorep_config("C99 compiler used:")
+if "gcc" in check_compiler:
+    gcc_plugin = scorep.helper.get_scorep_config("GCC plug-in support:")
+    if not ("yes" in gcc_plugin):
+        raise RuntimeError(
+            "Score-P uses GCC but is not build with GCC Compiler Plugin. GCC plug-in support is:\n{}".format(gcc_plugin))
 
 
 cmodules = []