I have a mercury program that imports a module from another file. I'd like to be able to put this file in a subdirectory. How can I do this?
I'm using mmc -E --make --trace deep filename to make the program.
I've looked at Building Multi-Module Mercury Programs but it doesn't seem to deal with the subdirectory issue, although I could be wrong.
You could try the mmc -f list of mercury files option from the directory where you want to import the file in the sub-directory. This will create a Mercury.modules file that helps mmc -m to resolve all modules
Related
I would like to release my program that wrote in ruby language, I need to pack ruby to appimage file and send it to my client ubuntu PC first.
so I create the folder "ruby-img", then copy my compiled ruby which in "/app/ruby" folder to "ruby-img/app/ruby" and then made a link as "ln -r -s app/ruby/bin/ruby usr/bin/." in "ruby-img" folder.
then I create the desktop file and put png file to "ruby-img", using appimagetool to create ruby-x86_64.AppImage. sadly it can not run, AFAIK that ruby.AppImage still using /app/ruby/lib folder to find some library of ruby but not in "ruby-img/app/ruby/lib" related folder.
so I tried re-compile ruby as --prefix=/tmp/ruby or --prefix=/usr/local/ruby, then copy them to "ruby-img/usr/local/ruby" or "ruby-img/tmp/ruby" then maka some link as above, and repack to AppImage but ruby.AppImage still not working...
any idea can help me ?
AppImages contain of a filesystem with all the content you provide plus a small executable stub that will mount the AppImage filesystem, then run the AppRun executable to be found inside.
With that knowledge it is utmost important that you provide an executable in the root directory along with the .desktop and icon files. I suggest you do not create AppRun yourself. Use the precompiled one from https://github.com/AppImage/AppImageKit/releases/tag/continuous (do not forget to rename it to exactly 'AppRun').
Now when this AppRun gets invoked, it will perform a few checks, cd into the /usr directory and try to start the executable specified in the .desktop file. Check it's source code and you can see that it also sets a few environment variables.
Therefore it is best you provide your entrypoint as /usr/bin/ruby.sh and register that in the desktop file. Remember if /usr/bin/ruby.sh gets called, the current work directory is /usr. So ruby.sh can set further environment variables such as LD_LIBRARY_PATH so that the libraries you configured for /usr/lib will actually be loaded.
With that I hope you have at least as much success as I had.
Some years ago on Ubuntu 16.0.4 I've used this library: git clone https://github.com/Beckhoff/ADS and using only the make command I got build, compile and finally on the main directory I found a file called AdsLib-Linux.a and maybe nothing more than this.
Now I'm on Ubuntu 20.04 I need this library once again but this times make dosn't produce the same output and looking forth to the ReadMe instructions I finally used that instead of make:
meson build
ninja -C build
That now create a new directory build but no .a file as before on the root directory. Instead a new file in the build directory libADSLib.a is there. The same thing happens using right the make command.
Maybe the author changed over the years something on the config files or the behavior of the tools have changed, but I cannot get the former file anymore and I need it for other referencing code that now is not executing anymore.
Looking to the MakeFile I found that in the example folder, differently from the one on the parent directory, the MakeFile has something like that:
$(warning ATTENTION make is deprecated and superseeded by meson)
...
${PROGRAM}: LIB_NAME = ../AdsLib-${OS_NAME}.a
...
But all i've tried reading the guides on meson and ninja about setup, configure, build, and so on, did not produce anymore that file.
I've tried also to first build and then copy all files form the example folder to the parent directory and then build again, but again no .a file there.
How's the right way to configure the build process corectly so that this -Linux.a file is created. Or if not possibile anymore, what does it now produce I can use instead of what produced before?
Meson is a build system generator, similar to CMake or somewhat like ./configure, you need to run meson, then run ninja to actually build something.
You need to run both meson and ninja:
meson setup builddir
ninja -C builddir
Once you do that successfully, there will be a libAdsLib.a inside the builddir directory.
Let me correct a bit #dcbaker, according to their README you should setup build as build directory:
# configure meson to build the library into "build" dir
meson build
# let ninja build the library
ninja -C build
Of course, in general, it shouldn't be specific, but their example code is written in a weird way so this path is hard-coded. So, to use the example:
# configure meson to build example into "build" dir
meson example/build example
# let ninja build the example
ninja -C example/build
# and run the example
./example/build/example
About the library: it's now libAdsLib.a and produced in build directory. The name is set here and it's now in linux naming style, the old one - not. So, you have options:
Update your configuration/build files (Makefile?) where you use it
Copy or make symbolic link, e.g.
$ ln -s <>/build/libAdsLib.a <target_path>/AdsLib-Linux.a
Above it's very dependent on your development environment, do you have installation or setup scripts for it? do you permissions to modify/configure parameters for target application? do you need to support both old and new names? - many questions not related to original question about meson.
I am working on a kernel module for a project using Yocto Linux (version 1.3). I want to use the kernel headers and the compiler and libraries from my Yocto project, but develop the kernel module without needing to run bitbake every time. My initial solution to this was to execute the devshell task and extract the environment variables using something like this:
bitbake mykernel -c devshell
Then in the new xterm window bitbake opened for me:
env | sed 's/\=\(.*\)/\="\1"/' > buildenv #put quotes around r-values in env listing
^D #(I leave the devshell)
Then copy this to my development directory and source it before running make with all of its options
KERNEL_PATH=/mypathto/build/tmp/sysroots/socfpga_cyclone5/usr/src/kernel
source ./buildenv && make -C $KERNEL_PATH V=1 M=`pwd` \
ARCH=arm CROSS-COMPILE=arm-linux-gnueabihf- \
KERNEL_VERSION=3.13.0-00298-g3c7cbb9 \
CC="arm-linux-gnueabihf-gcc -mno-thumb-interwork -marm" \
LD=arm-linux-gnueabihf-ld AR=arm-linux-gnueabihf-ar
Now to my questions:
Am I going about this completely wrong? What is the recommended way to cross-develop kernel modules? I am doing it this way because I don't want to open a bitbake devshell and do my code development in there every time.
This sort of works (I can compile working modules) but the make script gives me an error message saying that the kernel configuration is invalid. I have also tried this with KERNEL_PATH set to the the kernel package git directory (build/tmp/work///git (which contains what appears to be a valid .config file) and I get a similar error.
How can I extract the env without needing to open a devshell? I would like to write a script that extracts it so my coworkers don't have to do it manually. The devshell command opens a completely separate Xterm window, which rather dampens its scriptability...
the sdk installer is what you are looking for:
bitbake your-image -c populate_sdk
then, from your build directory go to tmp/deploy/sdk
and execute the generated shell script.
this script will allow you to generate and install an sdk.
Not only the sdk will allow you to (cross) compile your kernel by providing the needed environment variables and tools, but it will also provide a sysroot + a standalone toolchain to help you easily (and by easily I mean really easily) crosscompile applications with the autotools (as long as you provide Makefile.am and configure.ac)
just source the environment-setup-* file, got to your kernel directory and compile.
Or, for application developpment based on the autotools,
go to the folder containing your project (sources + Makefile.am and configure.ac)
and do:
libtoolize --automake
aclocal
autoconf
automake -a
now your project is ready for compilation:
./configure $CONFIGURE_FLAGS
make
make install DESTDIR=path/to/destination/dir
If you're after a quick hack, instead of Ayman's more complete solution, the scripts run to complete each build stage are available in the directory:
./build/tmp/work/{target_platform}/{package}/{version}/temp/run.do_{build_stage}
These scripts can be run standalone from the ./temp/ directory, and contain all of the environment variables required.
This question has been asked many time but I am not able to resolve the problem from them so I am asking
I had installed Cygwin a few days ago.I tried using ./configure command but it says
-bash: ./configure: No such file or directory
I tried using
where configure
but I got the output
INFO: Could not find files for the given pattern(s).
then I tried grep configureand I got this output
/etc/bash_completion.d/configure
/usr/i686-pc-cygwin/sys-root/usr/share/libtool/libltdl/configure
/usr/share/ELFIO/configure
/usr/share/libtool/libltdl/configure
I tried to export the path and then run the ./configure but it also didn't worked.
I find no executable file named as configure in my cygwin bin directory.
Does it mean that I have to add configure file manually?How can I correct it?
NOTE :- I had also tried sh configure but it also didn't worked
If a software project is set up to be built using autoconf, that tool generates a script canonically called configure. It queries the system for various parameters that are subsequently used in the build, and is specific to the software package to be built. Different software projects have different configure scripts. They are all called configure, but their contents are not the same.
So, to actually build such a software project once that script was set up (usually done by the maintainers when packaging the source tarball for distribution), you call:
tar xzf <tarball>.gz # or xjf <tarball>.bz2 or whatever
cd <sourcedir> # the one you just untarred
./configure
make
make install
Note the prefix ./, which means "located in this directory" (i.e. the top directory of that project's source tree).
Actually, the better procedure is the so-called "out-of-tree build", when you set up a different directory for the binaries to be built in, so the source tree remains unmodified:
tar xzf <tarball>.gz # or xjf <tarball>.bz2 or whatever
mkdir builddir
cd builddir
../<sourcedir>/configure
make
make install
So, there is supposed to be no configure executable in your PATH, you are supposed to call the script of that name from the source tree you are trying to build from.
If I correctly understood...
Configure is not an application that should be installed on your system, but script that should be delivered with source code to prepare for make command. File named configure should be in the main directory of source code.
I understand that this is an old question. However many might find this solution helpful.
Normally we use the make command to compile a downloaded source in cygwin. In many cases it contains a autogen.sh file. Running that file with
bash autogen.sh
will in many case solve the problem. At least it solved my issue and i could then use the make command
To no avail I try to compile code to a certain distination.
How to compile a server application to a certain destination ( has only Makefile ) ?
Tried:
make DESTDIR=/opt/mydeamon
But this fails
Make itself has no standard way of doing installations. If the installation is done using a Makefile it is up to the Makefile author to write rules for how make should do it.
But a common way it to provide a make install target and i think a common variable for specifying installation path is PREFIX.
Your should probably read some README or INSTALL file or even check the Makefile file for instructions if this is a source package that you have downloaded somewhere.