[sysprof] perf: polkit is optional for the library

[Christian Hergert <chergert src gnome org>]

commit 4479c56135741fe3d96edc5bca9801d8db7e2ebd
Author: Christian Hergert <christian hergert me>
Date:   Sat Apr 16 17:13:56 2016 -0700

    perf: polkit is optional for the library
    
    So changing this was a little backwards. The goal here is to allow using
    libsysprof-2 without polkit, it just won't have the ability to elevate
    privileges.

 lib/Makefile.am       |    2 --
 lib/sp-perf-counter.c |    5 ++++-
 2 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 5b51686..3e67fd1 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -99,7 +99,6 @@ libsysprof_ API_VERSION@_la_SOURCES = \
 libsysprof_ API_VERSION@_la_CFLAGS = \
        -I$(srcdir)/util \
        $(GIO_CFLAGS) \
-       $(POLKIT_CFLAGS) \
        $(WARN_CFLAGS) \
        $(NULL)
 
@@ -107,7 +106,6 @@ libsysprof_ API_VERSION@_la_LIBADD = \
        libutil.la \
        -lstdc++ \
        $(GIO_LIBS) \
-       $(POLKIT_LIBS) \
        $(NULL)
 
 if ENABLE_SYSPROFD
diff --git a/lib/sp-perf-counter.c b/lib/sp-perf-counter.c
index a6fad7a..ed3a114 100644
--- a/lib/sp-perf-counter.c
+++ b/lib/sp-perf-counter.c
@@ -42,13 +42,16 @@
 #include <errno.h>
 #include <gio/gio.h>
 #include <gio/gunixfdlist.h>
-#include <polkit/polkit.h>
 #include <string.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
 #include <sys/syscall.h>
 #include <unistd.h>
 
+#ifdef ENABLE_SYSPROFD
+# include <polkit/polkit.h>
+#endif
+
 #include "sp-perf-counter.h"
 
 #include "util.h"