From f2dfe3ab13148fd1d3bd5adcfaa1b0ee1af89a1a Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 17 May 2019 09:04:51 +0200
Subject: Diagnose package/project name mismatch in version module

---
 build2/file.cxx         |  1 +
 build2/scope.hxx        |  1 +
 build2/version/init.cxx | 18 ++++++++++++++++++
 3 files changed, 20 insertions(+)

diff --git a/build2/file.cxx b/build2/file.cxx
index b12d39c..139cf99 100644
--- a/build2/file.cxx
+++ b/build2/file.cxx
@@ -452,6 +452,7 @@ namespace build2
         a ? alt_buildignore_file : std_buildignore_file,
         a ? alt_root_dir         : std_root_dir,
         a ? alt_bootstrap_dir    : std_bootstrap_dir,
+        a ? alt_bootstrap_file   : std_bootstrap_file,
         a ? alt_root_file        : std_root_file,
         a ? alt_export_file      : std_export_file,
         a ? alt_src_root_file    : std_src_root_file,
diff --git a/build2/scope.hxx b/build2/scope.hxx
index 84e7ffb..83396b4 100644
--- a/build2/scope.hxx
+++ b/build2/scope.hxx
@@ -283,6 +283,7 @@ namespace build2
       const dir_path& root_dir;       // build[2]/root/
       const dir_path& bootstrap_dir;  // build[2]/bootstrap/
 
+      const path&     bootstrap_file; // build[2]/bootstrap.build[2]
       const path&     root_file;      // build[2]/root.build[2]
       const path&     export_file;    // build[2]/export.build[2]
       const path&     src_root_file;  // build[2]/bootstrap/src-root.build[2]
diff --git a/build2/version/init.cxx b/build2/version/init.cxx
index 1a5f249..c4a0444 100644
--- a/build2/version/init.cxx
+++ b/build2/version/init.cxx
@@ -41,6 +41,9 @@ namespace build2
       // Extract the version from the manifest file. As well as summary and
       // url while at it.
       //
+      // Also, as a sanity check, verify the package name matches the build
+      // system project name.
+      //
       string sum;
       string url;
 
@@ -63,6 +66,21 @@ namespace build2
 
           for (nv = p.next (); !nv.empty (); nv = p.next ())
           {
+            if (nv.name == "name")
+            {
+              auto& pn (cast<project_name> (rs.vars[var_project]));
+
+              if (nv.value != pn.string ())
+              {
+                path bf (rs.src_path () / rs.root_extra->bootstrap_file);
+                location ml (&f, nv.value_line, nv.value_column);
+                location bl (&bf);
+
+                fail (ml) << "package name " << nv.value << " does not match "
+                          << "build system project name " << pn <<
+                  info (bl) << "build system project name specified here";
+              }
+            }
             if (nv.name == "summary")
               sum = move (nv.value);
             else if (nv.name == "url")
-- 
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