[SOLVED] Qt Creator on OS X cannot find armadillo

[mariusmeyer]

Qt Creator 3.1.1 cannot find armadillo under OS X 10.9.3. I have installed armadillo 4.300.5 using the cmake install, and I have armadillo entries under /usr/include and libarmadillo in /usr/lib. When typing #include <a, Qt Creator suggests armadillo for autocomplete, meaning that Qt Creator indeed finds the lib. But trying to compile the program only gives the error
'armadillo' file not found
with a red ! on the #include line. Here is a MWE:
@
#include <armadillo>

using namespace std;

int main()
{
arma::mat A;
return 0;
}
@

with .pro-file
@
TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

SOURCES += main.cpp

LIBS += -larmadillo
@

I am using the default Desktop qt clang 64bit compiler option.
Thanks for any input!

[SGaist]

Hi and welcome to devnet,

Did you try adding /usr/lib to the list of known folder ?

[mariusmeyer]

Where is that list located? I cannot find it in the Preferences of Qt Creator.

[SGaist]

For you project:

@LIBS += -L/usr/lib@

[mariusmeyer]

Yes, I tried both the line you posted and also
@LIBS += -L/usr/lib -larmadillo@
I have also tried to right-click the project and select "Add Library...", but
I get the same error message.

EDIT:
If I do
@clang -O3 -o test -larmadillo main.cpp@
in the terminal it compiles just fine.

EDIT2:
It seems I needed to add the includes directory,
@INCLUDEPATH += /usr/include@
Now it works =)

[muawijhe]

This is not yet solved...
I'm running on Ubuntu 14.04 with Qt Creator 3.1.0 (opensource)

[rforcen]

on macOs add this to .pro

install armadillo: brew install armadillo

brew list armadillo

INCLUDEPATH += /usr/local/Cellar/armadillo/8.200.2/include/
LIBS += -L/usr/local/Cellar/armadillo/8.200.2/lib/ -larmadillo