.\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.28) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. 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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Module::Install::External \- Specify dependencies on external non\-Perl things .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\f(CW\*(C`Module::Install::External\*(C'\fR provides command that allow you to declaratively specify a dependency on a program or system that is not Perl. .PP The commands it provides are similar to those in Module::Install::Can, except that they implement an explicit dependency, in addition to just working out if the particular thing is available. .SH "COMMANDS" .IX Header "COMMANDS" .SS "requires_xs" .IX Subsection "requires_xs" .Vb 1 \& requires_xs; .Ve .PP The \f(CW\*(C`requires_xs\*(C'\fR command explicitly specifies that a C compiler and the perl header files are required in order to build (at \fImake\fR\-time) the distribution (specifically \s-1XS\s0 files). .PP It does not take any params, and aborts the \fIMakefile.PL\fR execution in a way that an automated installation or testing system will interpret as a \&\f(CW\*(C`NA\*(C'\fR (\*(L"not applicable to this platform\*(R") result. .PP This may be changed to an alternative abort result at a later time. .PP Returns true as a convenience. .SS "requires_external_cc" .IX Subsection "requires_external_cc" .Vb 1 \& requires_external_cc; .Ve .PP The \f(CW\*(C`requires_external_cc\*(C'\fR command explicitly specifies that a C compiler is required in order to build (at \fImake\fR\-time) the distribution. .PP It does not take any params, and aborts the \fIMakefile.PL\fR execution in a way that an automated installation or testing system will interpret as a \f(CW\*(C`NA\*(C'\fR (\*(L"not applicable to this platform\*(R") result. .PP This may be changed to an alternative abort result at a later time. .PP Returns true as a convenience. .SS "requires_external_bin" .IX Subsection "requires_external_bin" .Vb 1 \& requires_external_bin \*(Aqcvs\*(Aq; .Ve .PP The \f(CW\*(C`requires_external_bin\*(C'\fR command takes the name of a system command or program, similar to the \f(CW\*(C`can_run\*(C'\fR command, except that \&\f(CW\*(C`requires_external_bin\*(C'\fR checks in a way that is a declarative explicit dependency. .PP The takes a single param of the command/program name, and aborts the \&\f(CW\*(C`Makefile.PL\*(C'\fR execution in a way that an automated installation or testing system will interpret as a \f(CW\*(C`NA\*(C'\fR (\*(L"not applicable to this platform\*(R") result. .PP Returns true as a convenience. .SH "TO DO" .IX Header "TO DO" Work out how to save the external dependency metadata, in agreement with the larger Perl community. .PP Implement the agreed external dependency metadata solution. .SH "AUTHORS" .IX Header "AUTHORS" Adam Kennedy .SH "SEE ALSO" .IX Header "SEE ALSO" Module::Install .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2006 Adam Kennedy. .PP This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. .PP See