configure: Fix runstatedir handling for distros that do not support it #62
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runstatedir was added in yet-to-be released autoconf 2.70. Some distros are shipping this addition in their autoconf packages, but others, such as Fedora, are not. This causes the rundir variable to be set incorrectly if the configure script is regenerated with an unpatched autoconf since the runstatedir variable set is deleted after regeneration. This change works around that problem by checking that runstatedir is non-empty before potentially using it to set the rundir variable
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runstatedir was added in yet-to-be released autoconf 2.70. Some distros are shipping this addition in their autoconf packages, but others, such as Fedora, are not. This causes the rundir variable to be set incorrectly if the configure script is regenerated with an unpatched autoconf since the runstatedir variable set is deleted after regeneration. This change works around that problem by checking that runstatedir is non-empty before potentially using it to set the rundir variable