diff --git a/m4/ax_cblas.m4 b/m4/ax_cblas.m4
index 0c87c29f..da89cab9 100644
--- a/m4/ax_cblas.m4
+++ b/m4/ax_cblas.m4
@@ -152,11 +152,21 @@ if test $ax_cblas_ok = no; then
             [], [-lblas])])
 fi
 
+# BLAS in OpenBLAS library?
+if test $ax_cblas_ok = no; then
+    AC_CHECK_LIB(openblas, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lopenblas"])
+fi
+
 # Generic CBLAS library?
 if test $ax_cblas_ok = no; then
     AC_CHECK_LIB(cblas, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lcblas"])
 fi
 
+# Generic BLAS library?
+if test $ax_cblas_ok = no; then
+    AC_CHECK_LIB(blas, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lblas"])
+fi
+
 AC_SUBST(CBLAS_LIBS)
 
 LIBS="$ax_cblas_save_LIBS"