On Mon, Oct 20, 2014 at 07:19:42AM +0000, Chaiken, Alison wrote: > There are some very useful functions in systemd/src/shared that are tempting > to reuse in other, unrelated applications. My first attempt is like this: > > /usr/bin/gcc -g -Wall -Wextra -std=gnu99 -I../systemd/src/systemd > -I../systemd/src/shared -I/usr/include/x86_64-linux-gnu/python2.7/ > someprogram.c ../systemd/src/shared/log.c -I. ../systemd/src/shared/util.c > -o someprogram > > but the result doesn't come close to compiling: > === > In file included from ../systemd/src/shared/log.c:33:0: > ../systemd/src/shared/util.h:51:4: error: #error Unknown pid_t size > # error Unknown pid_t size > ^ > In file included from ../systemd/src/shared/util.h:87:0, > from ../systemd/src/shared/log.c:33: > ../systemd/src/shared/missing.h:282:6: error: #error "neither secure_getenv > nor __secure_getenv are available" > # error "neither secure_getenv nor __secure_getenv are available" > ^ > === > and so on. Is it necessary to understand libtool to proceed in this > direction, or has someone already figured out how to refer to src/shared > functions in a plain old Makefile for compilation outside of the systemd > source tree?
Hi, libsystemd-shared is an internal library. Technically it would not be an issue to install it and make available for other users, but we don't do that. The reason is that the library is subject to change at any time and is made only as comprehensive as needed for a given version of systemd code, the API is not stable, in some places it uses systemd logging framework, is undocumented and makes various assumptions that might be correct for internal use, but not in a general purpose library. Nevertheless, it is LGPLv2+ and you can use it for any purpose, either by copying or building it is part of systemd and linking to that, at you own risk. To link to it, simply compile systemd as normal, the library is called libsystemd-shared.a (a static library). Zbyszek _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
