Systemd/src/basic/build.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include "version.h"

extern const char* const systemd_features;

enum {
        BUILD_MODE_DEVELOPER,
        BUILD_MODE_RELEASE,
};
license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 05:23:58 +01:00			`/* SPDX-License-Identifier: LGPL-2.1-or-later */`
use #pragma once instead of foo*foo #define guards #pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported in other compilers. I've been using and maintaining (rebasing) this patch for a while now, as it annoyed me to see #ifndef fooblahfoo, etc all over the place, almost arrogant about the annoyance of having to define all these names to perform a commen but neccicary functionality, when a completely superior alternative exists. I havn't sent it till now, cause its kindof a style change, and it is bad voodoo to mess with style that has been established by more established editors. So feel free to lambast me as a crazy bafoon. v2 - preserve externally used headers 2012-07-18 19:07:51 +02:00			`#pragma once`
main: log build time features on startup 2010-08-12 01:03:24 +02:00
meson: generate version tag from git $ build/systemctl --version systemd 239-3555-g6178cbb5b5 +PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN +PCRE2 default-hierarchy=hybrid $ git tag v240 -m 'v240' $ ninja -C build ninja: Entering directory `build' [76/76] Linking target fuzz-unit-file. $ build/systemctl --version systemd 240 +PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN +PCRE2 default-hierarchy=hybrid This is very useful during development, because a precise version string is embedded in the build product and displayed during boot, so we don't have to guess answers for questions like "did I just boot the latest version or the one from before?". This change creates an overhead for "noop" builds. On my laptop, 'ninja -C build' that does nothing goes from 0.1 to 0.5 s. It would be nice to avoid this, but I think that <1 s is still acceptable. Fixes #7183. PACKAGE_VERSION is renamed to GIT_VERSION, to make it obvious that this is the more dynamically changing version string. Why save to a file? It would be easy to generate the version tag using run_command(), but we want to go through a file so that stuff gets rebuilt when this file changes. If we just defined an variable in meson, ninja wouldn't know it needs to rebuild things. 2018-12-20 20:35:25 +01:00			`#include "version.h"`

shared/build: make the version string definition less terrible The BLKID and ELFUTILS strings were present twice. Let's reaarange things so that each times requires definition in exactly one place. Also let's sort things a bit: the "heavy hitters" like PAM/MAC first, then crypto libs, then other libs, alphabetically, compressors, and external compat integrations. I think it's useful for users to group similar concepts together to some extent. For example, when checking what compression is available, it helps a lot to have them listed together. FDISK is renamed to LIBFDISK to make it clear that this is about he library and the executable. 2020-12-03 11:12:59 +01:00			`extern const char* const systemd_features;`
meson: convert developer_mode boolean to an enum I initially changed this to add a third state. But even with two values having an explicit name instead of just 0/1 is mode descriptive. 2020-10-21 10:04:23 +02:00
			`enum {`
			`BUILD_MODE_DEVELOPER,`
			`BUILD_MODE_RELEASE,`
			`};`