GIT_SILENT

Png2Ico provides lower quality icons compared to icoutils as png2ico
predates the current icon standard.
Still lloking for png2ico prints
 * Png2Ico, Executable that converts a collection of PNG files into a Windows icon file, <https://www.winterdrache.de/freeware/png2ico/ or https://commits.kde.org/kdewin>

which confuses new users.

Based on https://phabricator.kde.org/D21695

Several KDE projects use taglib, so we really need to provide a proper
find module in ECM.

AFAIK taglib-config should not be portable, so we don't try to
run it on WIN32. See also:
https://invent.kde.org/network/kio-extras/-/commit/548f525f4308810888c85f42a570139029c40618

Summary:
Generates additional macros in the export header which can be used for
fine-grained disabling of warnings & visibility as well as excluding from
the build.

Reviewers: #frameworks, #build_system

Subscribers: chehrlic, dfaure, cgiboudeaux, kde-frameworks-devel, kde-buildsystem

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D23789

Summary:
simply sets a variable when the source is under version control. use it to
auto-enable Debug builds. there are also plans to switch special assertion
logic on in KIO when used from git, so there definitely is a more generic
use case of wanting to control behavior based on whether it the source is
likely used to make a development or production build.

conceivably the module could be used in the future to get git rev-parse or
the like, hence the generic name.

Test Plan: with .git the var is true, without it is false

Reviewers: kde-buildsystem, dfaure

Reviewed By: dfaure

Subscribers: apol, kossebau, kde-frameworks-devel

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D24159

Summary:
ECMAddQtDesignerPlugin provides two macros that can be used to
replace the usage of the tool kgendesignerplugin from KDesignerPlugin.
This allows to have ECM-using libraries to create Qt Designer plugins without
the need for another separate tool.

For that purpose option structure & defaults are inspired from that one, to
allow simple porting. Main difference is that ECMAddQtDesignerPlugin
expects the widget metadata definition to be done in CMake code,
using a dedicated function, instead of in a ini-style separate ".widgets" file.

Porting of ".widgets" files basically means:
copy content into cmake, transform ini code into arguments to util method.
Key names need a bit of adaption, current names are open for dicussion.

Porting example:
```
[KActionSelector]
IncludeFile=kactionselector.h
ToolTip=A widget for selecting and arranging actions/objects
Group=Views (KF5)
```
gets
```
ecm_qtdesignerplugin_widget(KActionSelector
    INCLUDE_FILE kactionselector.h
    TOOLTIP "A widget for selecting and arranging actions/objects"
    GROUP "Views (KF5)"
)
```

Reviewers: #build_system, #frameworks

Subscribers: apol, kde-frameworks-devel, kde-buildsystem

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D22724

Summary:
This one is originally coming from Solid, but there are several more copies
in our repositories (plasma-desktop, kwin, powerdevil, etc).

Reviewers: cgiboudeaux

Reviewed By: cgiboudeaux

Subscribers: cgiboudeaux, kde-frameworks-devel, kde-buildsystem

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D19486

Summary: Originally coming from KWin, but now also needed by qtbase.

Reviewers: cgiboudeaux

Reviewed By: cgiboudeaux

Subscribers: kossebau, apol, cgiboudeaux, kde-frameworks-devel, kde-buildsystem

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D18943