c++ - How to pass a cmd-command output to a #DEFINE MACRO in QMake -


i added new #define ".pro" file this:

#define += svn_v

now pass output of command "svnversion -n" svn_v, , here did:

#define += "svn_v = svnversion -n"

but result

error: no such file or directory

error: svnversion: no such file or directory

so, missing here exactly? (be aware working linux ubuntu)

it that:

defines += "svn_v=\"\\\"$$system(svnversion -n)\\\"\""

$$system() qmake function execute system command , obtain output it.

external quotes around svn_v... - qmake - must understand single define. if $$system() returns space delimited string "unknown version" in result: -dsvn="unknown -dversion".

next quotes \" - pass $$system() result compiler. without 2 arguments instead of 1 "unknown , version".

double quoted quotes \\\" pass value preprocessor. without value without quotes , recognized int. \\\" resolved qmake \" , passed compiler.


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