cquery package: patch for gcc@10: (#23679)

var/spack/repos/builtin/packages/cquery/fix-gcc10.patch

@@ -0,0 +1,10 @@
+diff -purw src/options.h src/options.h
+--- src/options.h	2020-05-13 13:26:39.743491698 +0200
++++ src/options.h	2020-05-13 13:28:47.277181534 +0200
+@@ -1,5 +1,6 @@
+ #pragma once
+ 
++#include <string>
+ #include <unordered_map>
+ 
+ std::unordered_map<std::string, std::string> ParseOptions(int argc,

var/spack/repos/builtin/packages/cquery/package.py

@@ -18,6 +18,9 @@ class Cquery(CMakePackage):
 
     depends_on('llvm')
 
+    # trivial patch (missing header) by mueller@kip.uni-heidelberg.de
+    patch('fix-gcc10.patch', level=0, when='%gcc@10.0:')
+
     def cmake_args(self):
         args = ['-DCMAKE_EXPORT_COMPILE_COMMANDS=YES',
                 '-DSYSTEM_CLANG=ON']