Why not on release but debug

[baray98]

Hi guys,

I was trying to use the qwt library for my plotting. I compiled the source and examples but when i tried to make a release version of the examples the output won't run. When I tried creating the debug version of the examples it ran(output).

I am using mingw and qt to compile it on my windows machine. I did not change anything on the pro files.

Please help

Bryan Rubia

[baray98]

By the way i am using Qt commercial DE 4.3.1

baray98

[wysota]

Hard to say without knowing any details. It could be that your application contains some bug that only reveals itself while running in release mode.

[baray98]

I was running (compiliing) the examples that comes with it. here is the pro files of one of the examples

bodeplot.pro


# -*- mode: sh -*- ################################################
# Qwt Widget Library
# Copyright (C) 1997 Josef Wilgen
# Copyright (C) 2002 Uwe Rathmann
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the Qwt License, Version 1.0
################################################## #################

include( ../examples.pri )

TARGET = bode
QT += svg

HEADERS = \
bode.h \
bode_plot.h \
cplx.h \
pixmaps.h

SOURCES = \
bode.cpp \
bode_plot.cpp


here is the "examples.pri" this is included in the bodeplot.pro


# -*- mode: sh -*- ################################################
# Qwt Widget Library
# Copyright (C) 1997 Josef Wilgen
# Copyright (C) 2002 Uwe Rathmann
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the Qwt License, Version 1.0
################################################## #################

include( ../../qwtconfig.pri )

TEMPLATE = app

MOC_DIR = moc
OBJECTS_DIR = obj
INCLUDEPATH += ../../src
DEPENDPATH += ../../src

unix:LIBS += -L../../lib -lqwt

win32:QwtDll {
DEFINES += QT_DLL QWT_DLL
}

contains(CONFIG, QwtDll) {
win32-msvc:LIBS += ../../lib/qwt5.lib
win32-msvc.net:LIBS += ../../lib/qwt5.lib
win32-msvc2005:LIBS += ../../lib/qwt5.lib
win32-g++:LIBS += -L../../lib -lqwt
} else {
win32-msvc:LIBS += ../../lib/qwt.lib
win32-msvc.net:LIBS += ../../lib/qwt.lib
win32-msvc2005:LIBS += ../../lib/qwt.lib
win32-g++:LIBS += -L../../lib -lqwt
}


and here is the qwtconfig.pri


################################################## ####################
# Install paths
################################################## ####################

unix {
INSTALLBASE = /usr/local/qwt-5.1.0-svn
}

win32 {
INSTALLBASE = C:/Qwt-5.1.0-svn
}

target.path = $$INSTALLBASE/lib
headers.path = $$INSTALLBASE/include
doc.path = $$INSTALLBASE/doc

################################################## ####################
# qmake internal options
################################################## ####################

CONFIG += qt # Also for Qtopia Core!
CONFIG += warn_on
CONFIG += thread

################################################## ####################
# release/debug mode
# The designer plugin is always built in release mode.
# If want to change this, you have to edit designer/designer.pro.
################################################## ####################

CONFIG += debug # release/debug

debug {
#linux-g++:QMAKE_CXXFLAGS += -fstack-protector
#linux-g++:QMAKE_CXXFLAGS += -fstack-protector-all
#linux-g++:QMAKE_CXXFLAGS += -Wstack-protector
}

#linux-g++:QMAKE_CXXFLAGS += -fno-exceptions

################################################## ####################
# Build the static/shared libraries.
# If QwtDll is enabled, a shared library is built, otherwise
# it will be a static library.
################################################## ####################

CONFIG += QwtDll

################################################## ####################
# QwtPlot enables all classes, that are needed to use the QwtPlot
# widget.
################################################## ####################

CONFIG += QwtPlot

################################################## ####################
# QwtWidgets enables all classes, that are needed to use the all other
# widgets (sliders, dials, ...), beside QwtPlot.
################################################## ####################

CONFIG += QwtWidgets

################################################## ####################
# If you want to display svg imageson the plot canvas, enable the
# line below. Note that Qwt needs the svg+xml, when enabling
# QwtSVGItem.
################################################## ####################

CONFIG += QwtSVGItem

################################################## ####################
# If you have a commercial license you can use the MathML renderer
# of the Qt solutions package to enable MathML support in Qwt.
# So if you want this, copy qtmmlwidget.h + qtmmlwidget.cpp to
# textengines/mathml and enable the line below.
################################################## ####################

#CONFIG += QwtMathML

################################################## ####################
# If you want to build the Qwt designer plugin,
# enable the line below.
# Otherwise you have to build it from the designer directory.
################################################## ####################

CONFIG += QwtDesigner

################################################## ####################
# If you want to auto build the examples, enable the line below
# Otherwise you have to build them from the examples directory.
################################################## ####################

CONFIG += QwtExamples



please help

baray98

[wysota]

And they compile correctly but crash when ran?

[baray98]

i figured it out!!! I have to recompile my library (qwt.dll) to be in release version if i have to run my app in release version and use a compiled debug version of qwt.dll if i will would like to run my app in debug version

I guess qwt doesn't have a "-debug-and-release" version like qt

baray98

[wysota]

From what you say it sounds like the application didn't compile and not didn't run. Those are completely two different things.