[jhbuild/feature/regex-based-include-searching] introduce c_include_glob

[Sebastian Geiger <segeiger src gnome org>]

commit b4e41b362c218918f89d10a8ed5ec7585303b35d
Author: Sebastian Geiger <sbastig gmx net>
Date:   Sat May 15 17:40:52 2021 +0200

    introduce c_include_glob

 jhbuild/utils/systeminstall.py          | 20 ++++++++++++++++++++
 modulesets/gnome-sysdeps-latest.modules |  1 +
 2 files changed, 21 insertions(+)
---
diff --git a/jhbuild/utils/systeminstall.py b/jhbuild/utils/systeminstall.py
index 52fb3fdb..292a7a48 100644
--- a/jhbuild/utils/systeminstall.py
+++ b/jhbuild/utils/systeminstall.py
@@ -27,6 +27,7 @@ import subprocess
 import textwrap
 import time
 import re
+import fnmatch
 
 from .compat import TextIO
 from . import cmds
@@ -192,6 +193,25 @@ def systemdependencies_met(module_name, sysdeps, config):
                     break
             if not found:
                 dep_met = False
+        elif dep_type.lower() == 'c_include_glob':
+            if c_include_search_paths is None:
+                c_include_search_paths = get_c_include_search_paths(config)
+
+            for path in c_include_search_paths:
+                if not os.path.isabs(value):
+                    filename_glob = os.path.normpath(os.path.join(path, value))
+                else:
+                    filename_glob = value
+
+                # value is a regex, do a tree walk and see if we can find a matching include
+                for root, dirs, files in os.walk(path):
+                    for file in files:
+                        candidate_filepath = os.path.join(root, file)
+                        if fnmatch.fnmatch(candidate_filepath, filename_glob):
+                            return True
+
+            dep_met = False
+
 
         elif dep_type in ('python2', 'python3'):
             command = dep_type
diff --git a/modulesets/gnome-sysdeps-latest.modules b/modulesets/gnome-sysdeps-latest.modules
index b06d7fd7..be04dd75 100644
--- a/modulesets/gnome-sysdeps-latest.modules
+++ b/modulesets/gnome-sysdeps-latest.modules
@@ -532,6 +532,7 @@
     <systemdependencies>
       <dep type="c_include" name="clang-c/Index.h">
         <!-- Debian. FIXME: This is definitely broken. https://bugzilla.gnome.org/show_bug.cgi?id=781872 -->
+        <altdep type="c_include_glob" name="/usr/lib/llvm-*/include/clang-c/Index.h"/>
         <altdep type="c_include" name="../lib/llvm-.*/include/clang-c/Index.h" regex="true" />
         <!-- FreeBSD -->
         <altdep type="c_include" name="../llvm90/include/clang-c/Index.h"/>