qmake variable reference in project file - qt

Question

I am trying to use qmake to include all files in a directory (this project is an external subversion project with hundreds of files). I am using qmake version 3.1.
What I tried was something like:
server_files = $$files($$PWD/server)
SOURCES += server_files(*.cpp, true)
The first line does not give any error but the second line gives:
:-1: warning: Failure to find: server_files(*.cpp,
:-1: warning: Failure to find: true)
Putting a $ sign in front of the variable as SOURCES += $server_files(*.cpp, true) gives the same error.

Answer 1

The following example function takes a variable name as its only argument, extracts a list of values from the variable with the eval() built-in function, and compiles a list of files:
defineReplace(headersAndSources) {
variable = $$1
names = $$eval($$variable)
headers =
sources =
for(name, names) {
header = $${name}.h
exists($$header) {
headers += $$header
}
source = $${name}.cpp
exists($$source) {
sources += $$source
}
}
return($$headers $$sources)
}
Variable Processing Functions