on Thu, 23 Oct
2008 18:13:42 -0700
> >I have a small unix program that I want to compile for eCS. I downloaded
> >it and see many file suffixes that a new to me. So I downloaded GCC432
> >and M4. Now I want to compile so I look and the makefiles one is a .am
> >and the other is a .in, neither look like a makefile to me. There are a
> >few .sh scripts that I am ignoring.
>
> I recommend not ignoring anything. If you want to compile apps designed
> to be built with the gcc toolchain, you really need the full toolchain.
> Except for toy apps, anything else is more work than you might imagine.
>
> There's a ready to use toolchain at
>
> http://www.smedley.info/os2ports/index.php?page=build-environment
I will delete what I have now and start over with Paul's system.
> I still use my home-brew environment because it's been in place for a long
> time, but Paul's setup seems to work well for those that use it.
>
> >I build my own makefile and try a compile. None of the C standard
> >headers are found which surprised me, I had expected them to come with
> >the compiler.
>
> Not surprising. You tried to roll your own, which means you need to
> understand and satisfy every requirement the app has and you need to debug
> any problems created by just guessing as to what's needed.
>
> >Where can I download the standard C header files?
>
> Unless I missed an update, you only downloaded a subset of the gcc
> compiler toolchain. The gcc432 zip is an experimental development
> release. It is designed to layer on top of 3.3.5 which is the current
> stable release.
OK. I did not expect it to not be a full release. I did know it was not yet
considered stable.
> >Generated from configure.ac by autoheader. */" and has many #undef
> >statements. What is this program 'autoheader' and do I need it?
>
> Maybe.
>
> >There are two .m4 files that I ran M4 on but they did not appear to do
> >anything.
>
> I'm sure they did something, but I'm also sure they did not do anything
> useful run standalone. The .m4 files that come with the sources add
> application specific extensions to the generic autoconf scripts.
>
> >Where can I get a MAN program for eCS?
>
> I use man.exe, version 1.5g. It should be on Hobbes. Generally, I go to
> the web to read man pages.
>
> >Anything else I need so I can use GCC432?
>
> Yes.
>
> I recommend you google for an autoconf tutorial so you have a basic idea
> of how the pieces fit together.
>
> You might want to browse the netlabs libc-user mailing list which is
> archived a gmane because it contains a wealth of OS/2 specific gcc
> information.
>
> The comp.os.os2.programmer.misc newsgroup also has some useful gcc
> information.
>
> You probably should subscribe to the libc-user list. It's as good a place
> as any to get gcc related questions answered.
>
> Once you have a gcc toolchain installed and working, to build an app, you
>
> - unpack the sources
> - run configure one time to build site specific makefiles and such
> - run make to create your executables
>
> In rare cases, you might need to run autoconf and/or automake to rebuild
> configure and its inputs, but this is not typical. All recent autoconf's
> know about OS/2, so the supplied configure scripts usually already have
> OS/2 support.
>
> The autoconf toolset philosophy differs from what you are used to. Linux
> and unix apps, unlike OS/2 and Windows apps, typically run on a wide
> variety of different CPU architectures and a wide variety of
> distributions. They all vary in terms of what is installed where.
>
> A configure script knows what's needed to build a particular app and how
> to check if the requirements are met. The configure scripts are complex,
> but you can generally use them like black boxes.
>
> BTW, got a link to the app you are trying to build?
I can not remember what URL I used but the file is flipit-0.3.5.tar.GZ and it
is located on several web sites. Flipit is a program to send commands to an
X10 controller using a serial port. What I want to do is, under program
control, power off and on my DSL modem so it will resync whenever the link is
no longer connected to the internet. Verizon is putting fiber in my area and
my DSL modem has lost sync many times.
--
Robert Blair
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