kconfig_compiler: new kcfgc args HeaderExtension & SourceExtension

Summary:
When using kconfig_compiler generated sources in projects where the used
file extensions for C++ files are not ".h" and/or ".cpp", the include for
the generated header looks a bit alien to the project, as well as the
generated source file if one looks closer at it.

This code adds new optional flags HeaderExtension & SourceExtension which
can be used to control the file extensions used for the generated files.

Test Plan:
All unit tests and the new test_fileextensions pass, existing projects using
kcfg without & with the new flags build fine.

Reviewers: #frameworks, apol

Reviewed By: apol

Subscribers: apol, kde-frameworks-devel

Tags: #frameworks

Differential Revision: https://phabricator.kde.org/D19565

1 files changed, 12 insertions, 0 deletions

diff --git a/src/kconfig_compiler/README.dox b/src/kconfig_compiler/README.dox
index 3ba97285..64f7c44a 100644
--- a/src/kconfig_compiler/README.dox
+++ b/src/kconfig_compiler/README.dox
@@ -97,6 +97,18 @@ The following options are read from the kcfgc file:
   <td>Name of kcfg file containing the options the class is generated for</td>
 </tr>
 <tr>
+  <td><b>HeaderExtension</b></td>
+  <td>string</td>
+  <td>h</td>
+  <td>Extension to use for the name of the generated C++ header files. Since KF 5.57</td>
+</tr>
+<tr>
+  <td><b>SourceExtension</b></td>
+  <td>string</td>
+  <td>cpp</td>
+  <td>Extension to use for the name of the generated C++ source file. Since KF 5.57</td>
+</tr>
+<tr>
   <td><b>NameSpace</b></td>
   <td>string</td>
   <td>-</td>