[gnome-documents] link libgdprivate against libm (uses floor(3))

[Frederic Peters <fpeters src gnome org>]

commit 97409d31e776f9aa951b99bef94bd0c731568c15
Author: FrÃdÃric PÃters <fpeters 0d be>
Date:   Fri Dec 9 14:31:19 2011 +0100

    link libgdprivate against libm (uses floor(3))
    
    https://bugzilla.gnome.org/show_bug.cgi?id=665869

 configure.ac        |    3 +++
 src/Makefile-lib.am |    3 ++-
 2 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 9565105..6f8cbb9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,6 +52,9 @@ AC_SUBST(GJS_CONSOLE)
 
 GLIB_GSETTINGS
 
+AC_CHECK_LIBM
+AC_SUBST(LIBM)
+
 EVINCE_MIN_VERSION=3.3.0
 GLIB_MIN_VERSION=2.31.0
 GTK_MIN_VERSION=3.3.3
diff --git a/src/Makefile-lib.am b/src/Makefile-lib.am
index 9012e88..f7234e4 100644
--- a/src/Makefile-lib.am
+++ b/src/Makefile-lib.am
@@ -38,7 +38,8 @@ gdprivate_source_c = \
 lib_LTLIBRARIES += libgdprivate-1.0.la
 
 libgdprivate_1_0_la_LIBADD = \
-    $(DOCUMENTS_LIBS)
+    $(DOCUMENTS_LIBS) \
+    $(LIBM)
 
 libgdprivate_1_0_la_CPPFLAGS = \
     $(gdprivate_cflags)