rsys

commit 6e4071147db8b3d92edf84463b765fa488942abb
parent 502598154ae31caf3ba2e2b560f691f99d341553
Author: vaplv <vaplv@free.fr>
Date:   Mon, 29 Jan 2018 09:43:25 +0100

Link with rt if RSys is using a GLibc version before 2.17

Diffstat:
M
cmake/CMakeLists.txt
 | 
10
+++++++++-

1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
@@ -133,7 +133,7 @@ add_library(rsys SHARED
   ${RSYS_FILES_SRC_THREAD}
   ${RSYS_FILES_INC}
   ${RSYS_FILES_INC_API})
-set_target_properties(rsys 
+set_target_properties(rsys
   PROPERTIES DEFINE_SYMBOL RSYS_SHARED_BUILD
   DEFINE_SYMBOL RSYS_SHARED_BUILD
   VERSION ${VERSION}
@@ -145,6 +145,14 @@ if(CMAKE_COMPILER_IS_GNUCC)
   if(NOT MINGW)
     target_link_libraries(rsys dl)
   endif()
+
+  # On GLIBC version before 2.17 one has to link with the "rt" library to use
+  # the clock_gettime function.
+  find_package(PkgConfig REQUIRED)
+  pkg_check_modules(GLIBC QUIET glib-2.0)
+  if(${GLIBC_FOUND} AND "${GLIBC_VERSION}" VERSION_LESS "2.17")
+    target_link_libraries(rsys rt)
+  endif()
 endif()
 
 rcmake_setup_devel(rsys RSys ${VERSION} rsys/rsys_version.h)