Do I need to install packages needed to compile executable for the server on the server itself?
For example, I localy compile php with zlib & then install on the server. Does php can use zlib functions because I included it when I compiled or do I still need that package present on the server?
OS: Slackware 13.37
In principle you should be able to compile software on another machine, but you need to make sure your architectures, dependencies (e.g. libraries like glibc and others) and compiler are compatible. If architectures don't match have a look into cross-compiling.
If this is just for you and your compile machine and server match in architecture make sure the have the same versions of dependencies installed.
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I am using Rust to cross compile a CLI.
An issue I am having is that typically the Rust compiler only works flawlessly when it compiles for the same OS/arch as the host it is running on (otherwise there are missing components, e.g. dynamic libs or compiler toolchains).
I want to release a binary that I have compiled on my Mac, but I want to be able to archive all inputs so that I can recreate the build for any future security audits.
For Linux I am using Docker containers which snapshot all files used as input to the cargo build process.
But for my Mac I have no idea how to isolate the cargo install, or what other toolchains or dynamic libs it may be calling out to.
Thanks
I have built a sdcard.img for raspberry pi using Buildroot. When I run apt-get command it throws error "apt-get: command not found". I did not find apt-get/dpkg package to enable in 'make menuconfig' options. Now I'm trying to run cross-compiled opencv program on my Rpi but some shared libraries are missing and I want to install these libraries using apt repository (as I already did it on standard Raspbian Stretch os & program run successfully).
I googled it, there's no solution for Buildroot rasbpbian os. Also I tried downloading and installing .deb packages for apt/apt-get/dpkg, didn't work.
apt-get: command not found
I want to cross-compile a kernel which will have all the necessary packages such as apt/dpkg, bin and lib files. Or for the time being to get the work done need guidance to install apt/dpkg packages on Rpi buildroot os.
Buildroot will never have apt or any package manager. With buildroot you have to decide ahead-of-time what packages you'll want included in your rootfs. Use Raspbian if you want to use apt-get.
robert-orr has already answered your question but I think you are confused about the naming. You cannot rebuild raspbian using buildroot.
Rebuilding raspbian (a debian derivative) is a fairly involved process. You have to implement bootstrapping of a distro (compile a compiler, compile your packages with your compiled compiler, etc.) See Debian Bootstrap for everything needed to create your own distro from source. This is usually done by debian and debian-derivative distributions only.
You can build a simpler image using Buildroot, if that satisfies your needs. Also look at Yocto/OE to see if that satisfies your requirement for building an image from source.
With a Buildroot-generated system, it is not possible to use a package manager, because there is no way to make sure the package binaries will actually work on your system. There are two reasons for this:
Binaries depend on the toolchain (C library, kernel header version, subarchitecture choices, ABI choices). There are hundreds of combinations of these choices possible in Buildroot, it's not possible to build package binaries for all of them. Traditional distros limit the choices to just one per architecture.
How one package is configured affects how other packages can be built. Again, Buildroot offers choices there, while traditional distros choose one (usually enable all features).
In Buildroot, instead of using apt-get, you'd go back to make menuconfig, select the additional packages you want to install, and rebuild the system.
I downloaded the clang compiler directly from the prebuilt binary tar provided on the llvm website here. The tar file contains a standard directory hierarchy with bin, include, lib etc. Now I want to configure macports to use this compiler in such a way that when a subsequent port requires clang then this compiler's binary is used. Note that I do not want macports to download and install a separate copy of clang. Is it possible to do so?
DETAILS: The reason why I want to keep the clang installation in a separate place is because I often use scientific code, or other code, like chromium, and I use anaconda. I also have xcode installed and that provides its own version of compilers. Adding macports' compilers to the system makes my system almost unmanageable because it is often very difficult to ensure that the right runtime library and compilation time library are being used.
MacPorts does not support this, and there is also no unsupported way to get this done that I am aware of.
However, C++ software installed through MacPorts should always end up using the libc++ runtime (if you're on a system where it is the default). MacPorts is aware of the C++ runtime its ports use and tries to make sure all its ports use the runtime set as the cxx_stdlib in macports.conf (which defaults to your system's default).
I have built the openwrt firmware and installed it to a device.
Now I want to compile my source code in C in the device (I can ssh into it).
However, openwrt firmware is quite basic and does not include make.
How can I install make/ equivalent to compile my C source code inside the device running openwrt firmware?
OpenWrt is not intended to work as a build server, so you won't find compiler, linker etc. in its root file system. As you mentioned before, you've successfully compiled the firmware. That means you have cross compiler at hand, so you can cross compile your software and then copy it to your system via scp.
Another approach would be to create your own feed, add your software to this feed, so that at the end you'll get an ordinary ipkg package, that you can download and install via web interface. See OpenWrt documentation for more details.
Lots of Cross Compiler are available for host system i.e PC running any Linux OS.
Just install compiler corresponding to Architecture in which Openwrt is running,
e.g If OpenWRT running on ARM architecture,
sudo apt-get install gcc-arm-linux-gnueabi
then compile source code as:
arm-linux-gcc -o yourprogram yourprogram.c
I need to know if it is possible to compile the best and newest package in an old, ancient system. Why? Well I'm limited at my company: I need to develop an application in an old Debian 3.0 server and I would prefer to use newer software to accomplish my task. Unfortunately, I'm not allowed to upgrade nor install any package.
Specifically, I want to parse XML files comfortably using xmlstarlet to do so. This server doesn't have it installed; if I download an older version of xmlstarlet supported by the system it's too old that I just lost the functionality I need. It just has three dependencies: libc6, libxml2 and libxslt1.1 (which are installed but are too ancient for a newer version of xmlstarlet)
So the question is: is there a way I can download this package and its dependencies (I think they are few and simple) and somehow compile them to work locally (not necessarily on the system's path, just in a working directory) without affecting in any way the legacy packages of the same name?
This system doesn't has PEAR either, nor PHP5, nor xmllint and I want to avoid coding in PHP4 to parse these XMLs. I really would like to work with xmlstarlet.
The answer to How to specify non-default shared-library path in GCC Linux? Getting "error while loading shared libraries" when running looks like it should work fine.
Or you could try static linking:
./configure --enable-static-libs