diff --git a/configure.ac b/configure.ac
index 65a4e24..fc0d7d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -278,9 +278,24 @@ AM_CONDITIONAL(ENABLE_STATIC, test "$enable_static" = yes)
 # We want to link in libunwind if it is enabled and exists.
 UNWIND_LIBS=
 if test "$enable_libunwind" = yes; then
+  save_CFLAGS="$CFLAGS"
+  save_LIBS="$LIBS"
+  PKG_PROG_PKG_CONFIG
+  PKG_CHECK_MODULES([PC_UNWIND],[libunwind],[
+    CFLAGS="$PC_UNWIND_CFLAGS"
+    LIBS="$PC_UNWIND_LIBS"
+  ],[
+    PC_UNWIND_CFLAGS=""
+    LIBS="-lunwind"
+  ])
   AC_CHECK_HEADERS([libunwind.h],
-                   [AC_CHECK_LIB(unwind, backtrace, UNWIND_LIBS=-lunwind)
+                   [AC_SEARCH_LIBS(backtrace, [], [
+                    save_CFLAGS="$CFLAGS $PC_UNWIND_CFLAGS"
+                    UNWIND_LIBS="$LIBS"
+                   ])
                     will_use_libunwind=yes])
+  CFLAGS="$save_CFLAGS"
+  LIBS="$save_LIBS"
 fi
 AC_SUBST(UNWIND_LIBS)