[gitg] Add/link m lib explicitly

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 4066cc335a403832559c45e39b32a69eae0363c4
Author: Jesse van den Kieboom <jesse vandenkieboom epfl ch>
Date:   Sat Aug 28 15:34:21 2010 +0200

    Add/link m lib explicitly

 configure.ac |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 885b1d9..b0709b0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,6 +45,8 @@ AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE", [Gettext package])
 
 AM_GLIB_GNU_GETTEXT
 
+AC_CHECK_LIB([m], [sinf])
+
 PKG_CHECK_EXISTS([gtk+-3.0 >= 2.90],
 		 [
 			GTK_REQUIRED=gtk+-3.0
@@ -120,6 +122,8 @@ fi
 
 AC_SUBST(DISABLE_DEPRECATED_CFLAGS)
 
+PACKAGE_LIBS="$PACKAGE_LIBS -lm"
+
 AC_SUBST(PACKAGE_CFLAGS)
 AC_SUBST(PACKAGE_LIBS)