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| author | donal.k.fellows@manchester.ac.uk <dkf> | 2012-04-19 10:28:34 (GMT) |
|---|---|---|
| committer | donal.k.fellows@manchester.ac.uk <dkf> | 2012-04-19 10:28:34 (GMT) |
| commit | 57f5f97a68d505c312056922940cf897731dfd85 (patch) | |
| tree | 8e981954477ca030ecaa28a71ac51c658db9bd51 | |
| parent | c7e9b400c9780db362597b5bc8d7f7745c894095 (diff) | |
| download | tcl-57f5f97a68d505c312056922940cf897731dfd85.zip tcl-57f5f97a68d505c312056922940cf897731dfd85.tar.gz tcl-57f5f97a68d505c312056922940cf897731dfd85.tar.bz2 | |
Added example to platform(n) manpage
| -rw-r--r-- | doc/platform.n | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/doc/platform.n b/doc/platform.n index 053448d..1553698 100644 --- a/doc/platform.n +++ b/doc/platform.n @@ -12,7 +12,7 @@ platform \- System identification support code and utilities .SH SYNOPSIS .nf -\fBpackage require platform ?1.0.4?\fR +\fBpackage require platform ?1.0.10?\fR .sp \fBplatform::generic\fR \fBplatform::identify\fR @@ -45,6 +45,7 @@ architecture a Tcl program is running on. .SH COMMANDS .TP \fBplatform::identify\fR +. This command returns an identifier describing the platform the Tcl core is running on. The returned identifier has the general format \fIOS\fR-\fICPU\fR. The \fIOS\fR part of the identifier may contain @@ -53,14 +54,33 @@ may contain dashes as well. The \fICPU\fR part will not contain dashes, making the preceding dash the last dash in the result. .TP \fBplatform::generic\fR +. This command returns a simplified identifier describing the platform the Tcl core is running on. In contrast to \fBplatform::identify\fR it leaves out details like kernel version, libc version, etc. The returned identifier has the general format \fIOS\fR-\fICPU\fR. .TP -\fBplatform::patterns \fIidentifier\fR +\fBplatform::patterns \fIidentifier\fR +. This command takes an identifier as returned by \fBplatform::identify\fR and returns a list of identifiers describing compatible architectures. +.SH EXAMPLE +.PP +This can be used to allow an application to be shipped with multiple builds of +a shared library, so that the same package works on many versions of an +operating system. For example: +.PP +.CS +\fBpackage require platform\fR +# Assume that app script is .../theapp/bin/theapp.tcl +set binDir [file dirname [file normalize [info script]]] +set libDir [file join $binDir .. lib] +set platLibDir [file join $libDir [\fBplatform::identify\fR]] +load [file join $platLibDir support[info sharedlibextension]] +.CE .SH KEYWORDS operating system, cpu architecture, platform, architecture +'\" Local Variables: +'\" mode: nroff +'\" End: |