[MacPorts] #50795: mathgl doesn't pick up gsl

[MacPorts]

#50795: mathgl doesn't pick up gsl
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 Reporter:  annacegu@…  |      Owner:  macports-tickets@…
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.3.4
 Keywords:              |       Port:  mathgl
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 I am compiling a C++ program that uses mathgl, and I am getting the
 following error:
 /opt/local/include/mgl2/datac_cf.h:30:8: error: definition of type
 'gsl_matrix' conflicts with typedef of the same name
 struct gsl_matrix;
        ^
 /opt/local/include/gsl/gsl_matrix_double.h:50:3: note: 'gsl_matrix'
 declared here
 } gsl_matrix;

 Looking at data_cf.h, it seems like MGL_HAVE_GSL is switched off, so
 mathgl is not picking up GSL headers.

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Ticket URL: <https://trac.macports.org/ticket/50795>
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