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15.1.4 Debugger Problems

There are some known problems when using gdb on code compiled by g77. Inadequate investigation as of the release of 0.5.16 results in not knowing which products are the culprit, but gdb-4.14 definitely crashes when, for example, an attempt is made to print the contents of a COMPLEX(KIND=2) dummy array, on at least some GNU/Linux machines, plus some others. Attempts to access assumed-size arrays are also known to crash recent versions of gdb. (gdb's Fortran support was done for a different compiler and isn't properly compatible with g77.)