[gjs/121-3-27-91-build-failure-on-debian-ubuntu] Profiler: fix build on Debian/Ubuntu

[Tim Lunn <timl src gnome org>]

commit dad7c4ec4fef8636bec1088683680b224b1d14d9
Author: Tim Lunn <tim feathertop org>
Date:   Thu Feb 22 00:03:36 2018 +1100

    Profiler: fix build on Debian/Ubuntu
    
    When linked with --as-needed, there needs to be an explicit reference to librt for the timing
    api's used in the profiler.
    
    Closes #121

 Makefile.am | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/Makefile.am b/Makefile.am
index 08558e2..17daa30 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -85,6 +85,7 @@ libgjs_la_SOURCES = $(gjs_srcs)
 
 if ENABLE_PROFILER
 libgjs_la_SOURCES += $(gjs_sysprof_srcs)
+libgjs_la_LIBADD += -lrt
 endif
 
 # Also, these files used to be a separate library