Compiler Directives in Code:Blocks

In Windows, I have long used iFort's simple compiler directive facility for conditional compilation.

https://software.intel.com/en-us/fortran-compiler-developer-guide-and-re...

for example

!DIR$ IF(FOO==1)

do something

!DIR$ ELSE

do something else

!DIR$ ENDIF

In Windows Developer Studio the value of FOO can be set globally in the project properties page in

Configuration Properties > Fortran > Preprocessor > Preprocessor Definitions

in the form FOO=1;FIE=0;FUM=1 ... etc.

These definitions are then applied to all files in the project. Note that this does not require the "Preprocess Source File" property to be Yes.

I am now trying to get this to work in Linux where I am running Code:Blocks for Fortran (CBFortran) as the IDE. CBFortran offers a project build options page with many of the compiler options, but no "Preprocessor Definitions" line.  I would appreciate some guidance on how to use Intel's Compiler Directives feature in this context.

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