👍

2018-03-06 8:34 GMT-03:00 sur-behoffski <sur_behoff...@grouse.com.au>:

> On 03/06/18 03:18, Antonio Scuri wrote:
>
>>    Hi,
>>
>>    So along with the definitions:
>>
>> export LUA_SUFFIX=
>> export LUA_INC=/usr/include/lua5.1
>>
>>    You should also define:
>>
>> LUA_BIN=/usr/bin
>>
>>    This was missing in the "Building  Lua, IM, ..." documentation.
>>
>>    Regarding the difference from doing that or defining on the command
>> line
>> I don't know why it didn't work. But I suspect it is related to the fact
>> that make is invoked from inside the Makefile. This would also explain the
>> "-p" parameter problem.
>>
>> Best,
>> Scuri
>>
>>
>
> G'day Scuri and others,
>
> I'm now able to build {both IM and CD} on {both Gentoo GNU/Linux
> and (GNU/) Linux Mint}, without modifying any of the supplied
> sources, and with no OS-specific code in the build script (at
> present... I'm still eyeing off /etc/os-release...).
>
> Quite a number of problems I was having turned out to be a
> by-product of the Lua script calling os.execute() to perform the
> build... I wanted to control environment variables such as LUA_BIN
> in that call, and I knew that os.execute() runs via the shell
> (bash), but I couldn't get things to work out.
>
> Turns out there were two blockages:
>
> 1. I was compiling a very fancy series of commands (e.g. including
>    an explicit "export" command for each variable)... but, somewhere
>    during a long process of trying many, many of variations, I
>    reverted the build command, such that, depending on which
>    variation I was trying, I was sometimes simply doing
>    os.execute("make").  Oops!
>
> 2. I've been writing makefiles since the mid-1980s, and had brief
>    exposure to it in other projects where other savvy people had
>    set up quite complex combinations... but I wouldn't call myself
>    highly proficient.  Well... I read through the GNU Make Info
>    manual in detail, looking especially at variables:
>    2a. Environment variables (implicitly imported);
>    2b. Using Make's "-e" flag during a recursive invocation to
>        force environment to be used within subsidiary Makefiles,
>        especially tecmake.mak;
>    2c. The old-style "=" recursive definition of variables;
>    2d. GNU'extension ":=", now adopted by POSIX as "::=", for
>        "simple" variables that only undergo substitution when the
>        variable is encountered during recipe execution; and
>    2e. Supplying variables as Makefile parameters: NAME=VALUE.
>
> *2e: Bingo!*
>
> I have been able to override BIN2C:  The full-on build commands (for
> IM, on Gentoo, in this example) is:
>
>        $ pushd im/src
>        $ LC_ALL=C make LUA_SUFFIX= LUA_INC=/usr/include/lua5.1
> LUA_BIN=/usr/bin BIN2C="/usr/bin/lua bin2c.lua" >../../build-gentoo-im.txt
> 2>&1
>        $ popd
>
> [The LC_ALL locale override is for my error message processing...
> more on that when I've got my existing infrastructure working
> properly, including improving the documentation of the scripts,
> and slimming down extra stuff that I've tried but that has turned
> out to be non-productive.]
>
> As for IUP, I'm getting messages that seem to suggest missing,
> mismatched or misused support header/package files, so there's
> some way to go before that's sorted out.  Once this is working,
> I'll do:
>
>    1. Release all the tools in the ecosystem I've built up, for
>       others to use/abuse.  I have no idea if others have an
>       interest in this; also, I note that quite a number of users
>       run the compiled binaries on Windows, and I haven't
>       investigated whether my toolkit might be helpful for those
>       that wish to build components under Windows;
>
>    2. Go back to my secondary interest in the IM/CD/IUP toolkit:
>       wanting to work to reduce, and hopefully eliminate, warnings
>       emitted by the compiler toolchain, and possibly some other
>       code changes, in the hope of making the sources more robust
>       and maintainable (e.g. new diagnostics from GCC 6.x, such
>       as "-Wmisleading-indentation"); and
>
>    3. With a few things crossed off of my "things to do" list, try
>       and catch up on other things in my life.
>
> Thanks for your help and patience...
>
> sur-behoffski
> programmer, Grouse Software
>
>
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