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chore(cmake): add support for libelogind (#352)

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* CMakeLists.txt: Fallback to elogind when libsystemd could not be
found.  Set LIBSYSTEMD variable.
* pkgconfig/sdbus-c++.pc.in (Description): Parameterize with above
LIBSYSTEMD variable.

Co-authored-by: Sven Eden <sven.eden@prydeworx.com>
This commit is contained in:
Apteryks
2023-08-18 05:08:37 -05:00
committed by GitHub
parent 3e84b254e9
commit 8113bf88ad
2 changed files with 12 additions and 1 deletions
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11
CMakeLists.txt
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@ -12,11 +12,22 @@ include(GNUInstallDirs) # Installation directories for `install` command and pkg
# PERFORMING CHECKS & PREPARING THE DEPENDENCIES
#-------------------------------
set(LIBSYSTEMD "libsystemd")
option(BUILD_LIBSYSTEMD "Build libsystemd static library and incorporate it into libsdbus-c++" OFF)
if(NOT BUILD_LIBSYSTEMD)
find_package(PkgConfig REQUIRED)
pkg_check_modules(Systemd IMPORTED_TARGET GLOBAL libsystemd>=236)
if(NOT TARGET PkgConfig::Systemd)
message(WARNING "libsystemd not found, checking for libelogind instead")
pkg_check_modules(Systemd IMPORTED_TARGET GLOBAL libelogind>=236)
if(TARGET PkgConfig::Systemd)
set(LIBSYSTEMD "libelogind")
string(REPLACE "." ";" VERSION_LIST ${Systemd_VERSION})
list(GET VERSION_LIST 0 Systemd_VERSION)
endif()
endif()
if(NOT TARGET PkgConfig::Systemd)
message(FATAL_ERROR "libsystemd of version at least 236 is required, but was not found "
"(if you have systemd in your OS, you may want to install package containing pkgconfig "

2
pkgconfig/sdbus-c++.pc.in
View File

@ -5,7 +5,7 @@ includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
Name: @PROJECT_NAME@
Description: C++ library on top of sd-bus, a systemd D-Bus library
Requires@PKGCONFIG_REQS@: libsystemd
Requires@PKGCONFIG_REQS@: @LIBSYSTEMD@
Version: @SDBUSCPP_VERSION@
Libs: -L${libdir} -l@PROJECT_NAME@
Cflags: -I${includedir}