</para>

<para>

For example: some systemsinterpret very small floating-point values

few differences in the<filename>float8</filename> regression test.

For example: some systemslack a working <literal>strtof</literal> function,

<filename>float4</filename> regression test.

Therefore, we provide a variant comparison file,

<filename>float8-small-is-zero.out</filename>, which includes

<filename>float4-misrounded-input.out</filename>, which includes

the results to be expected on these systems. To silence the bogus

<quote>failure</quote> message on <systemitem>OpenBSD</systemitem>

<quote>failure</quote> message on <systemitem>HP-UX 10</systemitem>

platforms, <filename>resultmap</filename> includes:

<programlisting>

float8:out:i.86-.*-openbsd=float8-small-is-zero.out

float4:out:hppa.*-hp-hpux10.*=float4-misrounded-input.out

</programlisting>

which will trigger on any machine where the output of

<command>config.guess</command> matches <literal>i.86-.*-openbsd</literal>.

Other lines

in <filename>resultmap</filename> select the variant comparison file for other

platforms where it's appropriate.

<command>config.guess</command> matches <literal>hppa.*-hp-hpux10.*</literal>.

Other lines in <filename>resultmap</filename> select the variant comparison

file for other platforms where it's appropriate.

</para>

<para>