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Diffstat (limited to 'doc/cygwin.htm')
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1 files changed, 34 insertions, 32 deletions
diff --git a/doc/cygwin.htm b/doc/cygwin.htm index 88e0a54..c206af1 100644 --- a/doc/cygwin.htm +++ b/doc/cygwin.htm @@ -16,10 +16,10 @@ ALT="[Icon home]" WIDTH=128 HEIGHT=144 BORDER=0 ALIGN=RIGHT> </A> <BR> <SMALL> Department of Computer Science </SMALL> <BR> <SMALL> The University of Arizona </SMALL> -<P> <SMALL> www.cs.arizona.edu/icon/v943/cygwin.htm +<P> <SMALL> www.cs.arizona.edu/icon/v950/cygwin.htm <BR> -Last updated November 8, 2005 </SMALL> -<!-- $Id: cygwin.htm,v 1.5 2005/11/08 23:24:34 gmt Exp $ --> +Last updated November 8, 2009</SMALL> +<!-- $Id: cygwin.htm,v 1.11 2009/11/08 21:53:08 gmt Exp $ --> <H2> Introduction </H2> @@ -38,12 +38,20 @@ Successful use of Cygwin requires familiarity with both Windows and Unix. <P> This document describes some of the peculiarities of the Cygwin -port of Version 9.4 of Icon. +port of Icon. These differences are not necessarily identified in other documentation. <H2> Building Icon </H2> +<P> Icon is built in a Cygwin shell window using the same process as on +on other platforms. +See the <A HREF=build.htm>installation documentation</A> for instructions. +There are two possible choices for configuration name: +The <CODE>cygwin</CODE> configuration uses the native Windows graphics system; +the <CODE>xcygwin</CODE> configuration uses the X window system and thus +is closer to other Unix implementations of Icon. + <P> The Cygwin package is available from <A HREF="http://www.cygwin.com/">www.cygwin.com</A>. A custom installation of the Cygwin system is required; @@ -52,14 +60,8 @@ insufficient for building software. Icon requires a C compiler and the usual tools and utilities available on a standard POSIX development system; these are found in the <CODE>gcc-core</CODE> and <CODE>make</CODE> packages. -The <CODE>xorg</CODE> family of packages is also needed -to build Icon with graphics enabled. - -<P> Icon is built in a Cygwin shell window. -The process is the same as on other platforms -and uses the configuration named <CODE>cygwin</CODE>. -See the <A HREF=build.htm>installation documentation</A> -for instructions on building Icon. +The <CODE>xinit</CODE> and <CODE>libXt-devel</CODE> packages are also needed +to build the <CODE>xcygwin</CODE> configuration with graphics enabled. <H2> Running Icon programs </H2> @@ -74,29 +76,34 @@ and <A HREF=icont.txt><CODE>icont</CODE></A> describe the command options in a traditionally cryptic manner. -<H2> Interpreter path </H2> +<H2> Interpreter path and environment</H2> <P> Icon programs require an interpreter for execution. On Windows, the path of the interpreter is not embedded in an executable program. The program must be able to find -<CODE>iconx.exe</CODE> in one of these locations: -<UL> - <LI> in the file named by the <CODE>ICONX</CODE> environment variable - <LI> in the same directory as the executable program - <LI> in the search path -</UL> +<CODE>iconx.exe</CODE> in the search path. + +<P> The Cygwin X server must be running, with a correct <CODE>DISPLAY</CODE> +variable in the environment, to execute graphics programs built by the +<CODE>xcygwin</CODE> configuration of Icon. + +<P> When the environment is correctly set, +with <CODE>cygwin1.dll</CODE> in the Windows path, +a compiled Icon program may be run from the Cygwin shell or by +double-clicking its graphical icon. <H2> Extra built-in functions </H2> <P> For compatibility with an earlier port of Icon to Windows, -this implementation includes some extra built-in functions. -The functions are described in section 6.2 of +the <CODE>cygwin</CODE> configuration includes some extra built-in functions. +These are described in section 6.2 of <A HREF="http://www.cs.arizona.edu/icon/docs/ipd271.htm">IPD271</A>, which documents that earlier port. <P> These unsupported functions are not part of Icon on other platforms, +nor of the <CODE>xcygwin</CODE> configuration, so their use renders a program non-portable. @@ -104,25 +111,20 @@ so their use renders a program non-portable. <P> The symbols <CODE>_MS_WINDOWS</CODE> and <CODE>_CYGWIN</CODE> are defined by the Icon preprocessor. +The symbol <CODE>_UNIX</CODE> is not defined. The symbol <CODE>_GRAPHICS</CODE> is defined if Icon is built with -graphics enabled. -The symbols <CODE>_UNIX</CODE> and <CODE>_X_WINDOW_SYSTEM</CODE> -are not defined. +graphics enabled; +the symbol <CODE>_X_WINDOW_SYSTEM</CODE> is also defined +in the <CODE>xcygwin</CODE> configuration. The corresponding strings are produced or omitted, as appropriate, by the <CODE>&features</CODE> keyword. -<H2> No dynamic loading </H2> - -The dynamic loading interface — <CODE>loadfunc()</CODE> — -is not implemented. - - <H2> Known bugs </H2> <UL> - <LI>Some Unix dependencies cause tests <CODE>io</CODE>, <CODE>tpp</CODE>, - and <CODE>opts</CODE> to fail. + <LI>Some Unix dependencies cause the <CODE>tpp</CODE> + and <CODE>opts</CODE> tests to fail. <LI> Resizing a window sends a large number of events to the program. </UL> |