Windows – In Windows, What Makes qmake Append a “d” to a Debug Target

qmakeqtwindows

I'm using a provided .pro file and for some reason, it's configured so that the debug libraries do not have "d" appended to their library name. What causes this and how do I restore it?

E.g. QtGui4.dll (release) and QtGuid4.dll (debug)

Thanks.

Best Solution

Add this to the .pro file and it will append _debug for mac and a d for windows debug build.

 CONFIG += debug_and_release

 CONFIG(debug, debug|release) {
     mac: TARGET = $$join(TARGET,,,_debug) 
     win32: TARGET = $$join(TARGET,,,d)
 }

CONFIG(xx, yy) This function can be used to test for variables placed into the CONFIG variable join(variablename, glue, before, after) Joins the value of variablename with glue, before and after.

Installing in Both Modes

Related Solutions

Windows – How to get current date/time on the Windows command line in a suitable format for usage in a file/folder name

See Windows Batch File (.bat) to get current date in MMDDYYYY format:

@echo off
For /f "tokens=2-4 delims=/ " %%a in ('date /t') do (set mydate=%%c-%%a-%%b)
For /f "tokens=1-2 delims=/:" %%a in ('time /t') do (set mytime=%%a%%b)
echo %mydate%_%mytime%

If you prefer the time in 24 hour/military format, you can replace the second FOR line with this:

For /f "tokens=1-2 delims=/:" %%a in ("%TIME%") do (set mytime=%%a%%b)

C:> .\date.bat
2008-10-14_0642

If you want the date independently of the region day/month order, you can use "WMIC os GET LocalDateTime" as a source, since it's in ISO order:

@echo off
for /F "usebackq tokens=1,2 delims==" %%i in (`wmic os get LocalDateTime /VALUE 2^>NUL`) do if '.%%i.'=='.LocalDateTime.' set ldt=%%j
set ldt=%ldt:~0,4%-%ldt:~4,2%-%ldt:~6,2% %ldt:~8,2%:%ldt:~10,2%:%ldt:~12,6%
echo Local date is [%ldt%]

C:>test.cmd
Local date is [2012-06-19 10:23:47.048]

C++ – Linking with a debug/release lib with qmake/Qt Creator

The normal

debug:LIBS += ...
else:LIBS += ...

solution breaks when users naively use CONFIG += debug or CONFIG += release to switch between debug and release builds (and they do; no-one remembers to say CONFIG -= release release_and_debug before CONFIG += debug :).

This is the canonical way to scope on debug:

CONFIG( debug, debug|release ) {
    # debug
    QMAKE_LIBDIR += "path/to/debug/lib"
} else {
    # release
    QMAKE_LIBDIR += "path/to/release/lib"
}

Cf. the qmake docs.

EDIT 2013-11-17: Don't use -Lfoo in LIBS. The canonical way is to add the paths (without the -L) to QMAKE_LIBDIR.

Best Solution

Related Solutions

Windows – How to get current date/time on the Windows command line in a suitable format for usage in a file/folder name

C++ – Linking with a debug/release lib with qmake/Qt Creator

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