[gegl] tests: explictly link testing tools with math library

[Øyvind Kolås <ok src gnome org>]

commit b15f4f825fee76534f8e8dd05e282042b8b8c64f
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed Sep 16 22:41:25 2015 +0200

    tests: explictly link testing tools with math library
    
    fixes bug #750935

 tests/simple/Makefile.am |    2 +-
 tests/xml/Makefile.am    |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/tests/simple/Makefile.am b/tests/simple/Makefile.am
index c9e47ff..b91e733 100644
--- a/tests/simple/Makefile.am
+++ b/tests/simple/Makefile.am
@@ -51,7 +51,7 @@ AM_CFLAGS = $(DEP_CFLAGS) $(BABL_CFLAGS)
 
 # Common libs
 LIBS = $(top_builddir)/gegl/libgegl-$(GEGL_API_VERSION).la     \
-       $(DEP_LIBS) $(BABL_LIBS)
+       $(DEP_LIBS) $(BABL_LIBS) $(MATH_LIB)
 
 check-TESTS: $(TESTS)
        $(PYTHON) $(srcdir)/../run-tests.py \
diff --git a/tests/xml/Makefile.am b/tests/xml/Makefile.am
index e28c608..8deb9ba 100644
--- a/tests/xml/Makefile.am
+++ b/tests/xml/Makefile.am
@@ -33,7 +33,7 @@ AM_CFLAGS = $(DEP_CFLAGS) $(BABL_CFLAGS)
 
 # Common libs
 LIBS = $(top_builddir)/gegl/libgegl-$(GEGL_API_VERSION).la     \
-       $(DEP_LIBS) $(BABL_LIBS)
+       $(DEP_LIBS) $(BABL_LIBS) $(MATH_LIB)
 
 check-TESTS: $(TESTS)
        $(PYTHON) $(srcdir)/../run-tests.py \