I have checked out the lazarus 1.6 RC1 tag from svn. I have also checked out and built the fpc release 3.0.0 and installed it as the fpc compiler on my system.

Now I wanted to finally build lazarus 1.6RC1, but this happens: cd ~/development/src/lazarus/1.6.RC1
make bigide
make -C packager/registration
make[1]: Entering directory
'/home/pi/development/src/lazarus/1.6.RC1/packager/registration' /bin/rm -f ../units/arm-linux/fcllaz.ppu
/bin/mkdir -p ../units/arm-linux
/usr/local/bin/ppcarm -MObjFPC -Scghi -O1 -g -gl -l -vewnhibq -Fu. -Fu/usr/local/lib/fpc/3.0.0/units/arm-linux/rtl -FE. -FU../units/ arm-linux -darm fcllaz.pas
Hint: (11030) Start of reading config file /etc/fpc.cfg Hint: (11031) End of reading config file /etc/fpc.cfg Free Pascal Compiler version 3.0.0 [2015/12/14] for arm Copyright (c) 1993-2015 by Florian Klaempfl and others (1002) Target OS: Linux for ARMHF
(3104) Compiling fcllaz.pas
(3104) Compiling registerfcl.pas
(3104) Compiling lazaruspackageintf.pas
(9009) Assembling lazaruspackageintf
/home/pi/development/src/lazarus/1.6.RC1/packager/registration/registerfcl.pas(45,22) Fatal: (10022) Can't find unit process used by
RegisterFCL
Fatal: (1018) Compilation aborted
Makefile:2702: recipe for target 'fcllaz.ppu' failed make[1]: *** [fcllaz.ppu] Error 1
make[1]: Leaving directory
'/home/pi/development/src/lazarus/1.6.RC1/packager/registration' Makefile:3050: recipe for target 'registration' failed make: *** [registration] Error 2

Anyone knows why this happens?
I thought fpc 3.0.0 could be used to build lazarus 1.6RC1

...

Free Pascal Compiler version 3.0.0 [2015/12/14] for arm Copyright (c) 1993-2015 by Florian Klaempfl and others (1002) Target OS: Linux for ARMHF

...

I checked for the file in question:
pi at rpi2-jessie ~/development/src/lazarus/1.6.RC1 $ find -name process.*
./components/printers/unix/images/process.xpm

It seems like there is no such process unit....
Obviously an xpm file could not be a Pascal unit.

What is the deal here?

Strangely I did not get this error when compiling Lazarus 1.6RC1 on a Linux Mint 17.2 Cinnamon machine. And yet the process unit is not found here either.

Check if you have /etc/fpc.cfg.
A "make install" of FPC only installs the files, it does not setup your system to use the new FPC.
You need to install a link and create the /etc/fpc.cfg. To get an idea search for "samplecfg" on
http://wiki.freepascal.org/Install_fpc_on_Raspberry_with_Gentoo

Mattias

Mattias Gaertner wrote

Check if you have /etc/fpc.cfg.

Yes I have.
In fact I do have several instances of the fpc compiler: The 2.6.4 bootstrap compiler
The 3.0.0 compiler I just built from the release sources The 3.1.1 compiler that resulted when I got the trunk sources a month or so ago and built it.

I also have Lazarus 1.5 and 1.2.4 working on the Pi2 system.

Now I just wanted to "upgrade" by installing the 1.6RC1 release candidate of lazarus and fpc release 3.0.0 and get them working side by side with the existing IDE:s

I cannot post the content of the fpc.cfg file here because it is too big. But I wonder how it can be placed in /etc/ since then it has to be working correctly for all versions of fpc that one may want to use.

Is there just a single fpc.cfg?

Maybe you have too many fpc configs.
Find out what config is used by fpc. For example by compiling an empty file with -vut.
Then check the -Fu paths in the config.

Should work.

By the power of macros. The -Fu paths usually looks like this on Linux:

-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/*
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/rtl
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/$fpcsubarch-$fpcmemorymodel -Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/$fpcsubarch-$fpcmemorymodel/* -Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/$fpcsubarch-$fpcmemorymodel/rtl

Is there just a single fpc.cfg?

The compiler searches for a config at several places and stops at the first hit.

Mattias

I searched for the cfg files:
pi at rpi2-jessie / $ sudo find -name fpc*.cfg
./home/pi/fpc/fpcbuild-2.6.4/install/amiga/fpc.cfg ./var/lib/dpkg/alternatives/fpc.cfg
./etc/alternatives/fpc.cfg
./etc/fpc-2.6.4.cfg
./etc/fpc.cfg

I also found out that /etc/fpc.cfg is actually a symlink: /etc/fpc.cfg -> /etc/alternatives/fpc.cfg which in turn is a symlink: /etc/alternatives/fpc.cfg -> /etc/fpc-2.6.4.cfg

So in a roundabout way /etc/fpc.cfg is actually: /etc/fpc-2.6.4.cfg

Question:
Is the fpc version 2.6.4 cfg file any good for fpc 3.0.0?

Seems a very involved way of handling this, hard for me to follow in any case. :(

In case the problem was caused by the fpc 3.0.0 I switched back to 2.6.4 and tried to build lazarus 1.6RC1.
Same exact error message...

With the caveat that this is for a native (i.e. not cross) compiler: you only need one of those. As discussed- several times- about the only thing that needs adjusting is the path to the GCC stuff if you move an existing fpc.cfg to another machine, under normal circumstances it's set up when you run install.sh to install the binary release files. I use the same fpc.cfg for everything from 2.2.4 through 3.0.1, and have not- so far- had to do anything special when building ARM or MIPS cross compilers.

Also see Lazarus's --pcp= option. Again, I don't think this is the first time I've pointed
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]

Mark Morgan Lloyd wrote

Also see Lazarus's --pcp= option. Again, I don't think this is the first time I've pointed issue is not really the --pcp option to separate the lazarus

configs. I have done so already for the older lazarus.

Instead it is about actually being able to build the RC1 lazarus on the Pi2 using the fpc. I have now tried both the 3.0.0 version and the older 2.6.4 with the same results. So somehow it seems like there is something amiss in the lazarus sources, which depend on the platform it is being compiled for, or else the fpc 3.0.0 installation is incomplete in some way. Is the process unit part of lazarus code or fpc code?

Building Lazarus worked fine in the Linux Mint 17.2 virtual machine but won't work here. Same sources checked out from svn in both cases, yet there is this error about the missing process unit...

Fatal: (10022) Can't find unit process used by RegisterFCL

Does RegisterFCL work differently on Linux x64 than on Linux ARM?

By the way I found a process.pp file in the fpc 3.0.0 sources: packages/fcl-process/src/process.pp

Maybe the lazarus "make bigide" does not search the correct directory so it misses this on an ARM platform? Just guessing now of course...

[...] >Fatal: (10022) Can't find unit process used by RegisterFCL Does RegisterFCL work differently on Linux x64 than on Linux ARM?

No.

By the way I found a process.pp file in the fpc 3.0.0 sources: packages/fcl-process/src/process.pp

You should have a process.ppu in your FPC install directory.

Maybe the lazarus "make bigide" does not search the correct directory so it misses this on an ARM platform? Just guessing now of course...

process.ppu is part of every FPC install.
It must be in the -Fu search path of your /etc/fpc.cfg.

Mattias

$ fpc -iV
3.0.0
# Unpack 1.6RC1, rename directory to lazarus-1.6.0+3.0.0 $ cd lazarus-1.6.0+3.0.0
$ make bigide
..
make[1]: Leaving directory ... lazarus-1.6.0+3.0.0/components/chmhelp/lhelp'

The result runs, including on Raspbian Jessie's GTK2. The only obvious thing that I'd fault is that the lazarus binary (i.e. specifically referring to the IDE) is poor at handling --help and --version. However

$ ./lazbuild --version
1.6RC1

works as expected.

So if an inexperienced twit like me can get it running, and can successfully maintain multiple versions of FPC and Lazarus including different combinations of compiler and IDE, why can't anybody?

Op 17-12-15 om 11:36 schreef Mark Morgan Lloyd:

Hi,

I tried what you said. Lazarus runs indeed, but can't compile a existing project.
I get an error stating fpcres could not be found. When I run fpcres on the command-line it starts and gives some output.

I also can't compile lazarus itself (e.g. after adding packages). I also get the error that fpcres can not be found.

Am I missing something ?

Koenraad.

I know this sounds silly, but check fpcres is on the path. My experience it that for Lazarus it's the only program that's needed apart from fpc and ppcarm etc.

Apart from that... on Raspbian Jessie some projects work and others don't. The one I've got here where I can see a problem also fails on 1.4.4+3.0.0, I think the problem might be when a .lfm is outside the normal project directory.

I'm about to take a look at other platforms.

In my case on both armhf and amd64 the problems were caused by a lingering {$I ... .lrs } directive. This wouldn't show up if either an older Lazarus/FPC combination had recently built the project, or if the .lrs file was stored in local Subversion.

Op 17-12-15 om 18:17 schreef Mark Morgan Lloyd:

Hi,

Like I said, when I run fpcres on the commandline, it works : pi at raspberrypi ~ $ fpcres
fpcres - resource file converter, version 2.0 [2015/12/06], FPC 3.0.0 Host platform: Linux - arm
Copyright (c) 2008 by Giulio Bernardi.
Syntax: fpcres [options] <inputfile> [<inputfile>...] [-o <outputfile>] ...
pi at raspberrypi ~ $ which fpcres
/home/pi/bin/fpcres

I downloaded fpc from somewhere (I can't find where from at the moment) and installed it in a non-previleged place (/home/pi/fpc-3.0.0). Then I made symbolic links in /home/pi/bin and set the PATH to include /home/pi/bin.

Koenraad

In my experience, fpres fails also due to lack of memory !

Just increase your swapsize with 500MB, and try again. Saved me many times.
(normally, I use cross-compile ... also saves lots of time ... )

Doing just about anything with Lazarus- particularly a (re)build- has required something like 512Mb RAM+swap for a long time.

Op 18-12-15 om 11:41 schreef Alfred:

Hi,

You seem to be right. I added swap, now I can compile an existing project.

Many thanks.

Koenraad.

Mattias Gaertner wrote

process.ppu is part of every FPC install. It must be in the -Fu search path of your /etc/fpc.cfg. From the fpc.cfg file (actually symlinked to fpc-2.6.4.cfg):

# searchpath for units and other system dependent things -Fu/usr/lib/fpc/$fpcversion/units/$fpctarget
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/*
-Fu/usr/lib/fpc/$fpcversion/units/$fpctarget/rtl

So for fpc 3.0.0 there should be a directory:
/usr/lib/fpc/3.0.0/units/arm-linux

But there is not! So here is the mystery:
I installed fpc 3.0.0 but it obviously did not create the needed directory for the fpc units....

Now looking back using the history command to verify how I actually installed fpc 3.0 I found this:

cd /home/pi/development/fpc
time svn co http://svn.freepascal.org/svn/fpc/tags/release_3_0_0 3.0.0 cd 3.0.0/
make all OPT=-dFPC_ARMHF
sudo make install OPT=-dFPC_ARMHF PREFIX=/usr/local sudo make install sourceinstall OPT=-dFPC_ARMHF PREFIX=/usr/local

Should another command be issued in order to get stuff loaded into /usr/lib/fpc/3.0.0?

PREFIX=/usr

Mattias

Thanks a bunch!
I just knew there would be something simple that I had wrong! Now started the lazarus RC1 build and it works just fine! :)

The PREFIX=/usr/local came from a cookbook webpage I have used to install trunk before and it did work then for some reason.

Additional question:

Is the command:
sudo make install sourceinstall OPT=-dFPC_ARMHF PREFIX=/usr

really needed after the "make all" and "sudo make install ..." have been executed?

I skipped this step now after changing PREFIX and the Lazarus compile just runs anyway.