View Full Version : CGAL flag options with Qt
bryanxito
21st October 2012, 07:03
Hi guys I need help to pass this CGAL command into a Qt project:
g++ -frounding-math -O3 -lCGAL -lgmp main.cpp
So far the libraries are linked with this:
LIBS += -L/lib64 -lgmp -lCGAL
But I can't pass the flags: -frounding-math -O3
Any ideas? (=
wysota
21st October 2012, 08:27
Set them in QMAKE_CXXFLAGS.
bryanxito
21st October 2012, 16:55
I have tried:
LIBS += -L/lib64 -lgmp -lCGAL
QMAKE_CXXFLAGS += -frounding-math -O3
And I still getting this error
Explanation: Wrong rounding: did you forget the -frounding-math option if you use GCC (or -fp-model strict for Intel)?
wysota
21st October 2012, 17:20
Are the flags you set in the compiler command being ran?
bryanxito
22nd October 2012, 21:07
Thats weird ! I run again my code with this lines:
LIBS += -L/lib64 -lgmp -lCGAL
QMAKE_CXXFLAGS += -frounding-math -O3
And now all is working fine, I can't explain it maybe a restart of qt was required but I'm not sure about that. Anyway thanks for your advice it was very useful
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