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Andreas Beckmann authored
Consistently use e.g. if (VARIABLE) instead of if (${VARIABLE}) because the latter causes the variable to be expanded twice (if the first expansion yields the name of a defined variable). This is usually not wanted and it also causes the following cmake snippet if (${CMAKE_Fortran_COMPILER_ID} MATCHES "GNU") message("This is a GNU compiler") else() message("This is not a GNU compiler") endif() set(GNU "foo") if (${CMAKE_Fortran_COMPILER_ID} MATCHES "GNU") message("This is a GNU compiler") else() message("This is not a GNU compiler") endif() if (CMAKE_Fortran_COMPILER_ID MATCHES "GNU") message("This is a GNU compiler") else() message("This is not a GNU compiler") endif() to produce the rather confusing This is a GNU compiler This is not a GNU compiler This is a GNU compiler
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