how to pass a variable from .sh script to qmake?

Question

I'm trying to build a qt project which will use boost binary libraries. And I want path to libs to be passed from .sh script to qmake and extended in .pro file. So I have this .pro file:

TEMPLATE = app
CONFIG += console
CONFIG -= qt

SOURCES += main.cpp

message("Master pro file path : ["$$[BOOST_LIBS_PATH]"]")

LIBS += -L$$[BOOST_LIBS_PATH]

and a script file that run qmake:

BOOST_LIBS_PATH=/path/to/boost

echo $BOOST_LIBS_PATH

qmake-qt4 qt_test_proj.pro -r -spec linux-g++

but at the complie output I receive

Project MESSAGE: boost libs path : []

so BOOST_LIBS_PATH in .pro file is still empty.

if it's as the make command, then `qmake-qt4 qt_test_proj.pro -r -spec linux-g++ BOOST_LIBS_PATH=/path/to/boost` should work. — Pierre Emmanuel Lallemant, Oct 30 '13 at 09:51
that worked! I changed `qmake-qt4 qt_test_proj.pro -r -spec linux-g++ BOOST_LIBS_PATH=/path/to/boost` in script and `$$[]` to `$${}` in .pro file. Thanks a lot! — kopalvich, Oct 30 '13 at 10:06

score 2 · Answer 1 · answered Oct 30 '13 at 10:04

I think you can pass the path with an environment variable, but you do not set any. I would do it in the following way.

In the script file

export BOOST_LIBS_PATH="/path/to/boost"
echo $BOOST_LIBS_PATH

Qt docs say that

To obtain the contents of an environment value at the time when the generated Makefile is processed, use the $(...) operator.

So in the project file

# Note the usage of $() operator.
message("Master pro file path : ["$(BOOST_LIBS_PATH)"]")
[..]
LIBS += -L$(BOOST_LIBS_PATH])

Thank's a lot, that's been useful! – kopalvich Oct 30 '13 at 16:02 — kopalvich, Oct 30 '13 at 16:02

how to pass a variable from .sh script to qmake?

1 Answers1