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-rw-r--r--features/mkc_imp.f_libm.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/features/mkc_imp.f_libm.mk b/features/mkc_imp.f_libm.mk
index e7d9d0e..5134a02 100644
--- a/features/mkc_imp.f_libm.mk
+++ b/features/mkc_imp.f_libm.mk
@@ -1,5 +1,9 @@
# Copyright (c) 2014 by Aleksey Cheusov
#
# See LICENSE file in the distribution.
+.ifndef _MKC_IMP_F_LIBM_MK
+_MKC_IMP_F_LIBM_MK := 1
MKC_CHECK_FUNCLIBS += sqrt:m
+
+.endif #_MKC_IMP_F_LIBM_MK