Do I need to include Q headers inner Q headers and to make these pre-compiled

[JacobNovitsky]

My fresh project builds for 2-4 seconds which is not good, put pragma once to headers an made one with Qt headers PRECOMPILED

Ubuntu, Jammy Fish, 6.2.4, Huawei D15

Need to speed up to zero or 1 second
Some KDAB guys say you need to make PCH all Qt headers in compiling chain

Please advise

#pragma once
#ifndef Static_lib_H
#define Static_lib_H


#if defined __cplusplus
/* Add C++ includes here */
#include <QDialog>
#include <QStandardItemModel>
#include <QMainWindow>
#include <QWidget>
#include <string.h>
#include <iostream>
#include <QApplication>
#endif

using namespace std;


class Static_lib
{
public:
    Static_lib();
};

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++17
#
# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
PRECOMPILED_HEADER  = Static_lib.h

SOURCES += \
    Static_lib.cpp
    main.cpp
    mainwindow.cpp

HEADERS += \
    mainwindow.h

FORMS += \
    mainwindow.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

[ChrisW67]

@JacobNovitsky said in Do I need to include Q headers inner Q headers and to make these pre-compiled:

Need to speed up to zero or 1 second

Why?

[JacobNovitsky]

@ChrisW67 why one should wait 4 seconds if one can easy set it to 0 or 1 second?

[Pl45m4]

@JacobNovitsky

There is always better, faster, wider etc...
Depending on the environment and use case, 4secs is not that long.

[Christian Ehrlicher]

Dupe of https://forum.qt.io/topic/150964/how-to-set-needed-permission-so-i-can-edit-qt-headers-from-qt-creator

Please stop spamming the forum with the same question...