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-rw-r--r--configure.ac3
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 9928b50..1c86c10 100644
--- a/configure.ac
+++ b/configure.ac
@@ -47,6 +47,9 @@ AC_CHECK_FUNCS(
if ${funcs_missing}; then
AC_MSG_ERROR([required functions are missing])
fi
+AC_SEARCH_LIBS([atan2], [m], [], [
+ AC_MSG_ERROR([required functions are missing])
+])
AC_SEARCH_LIBS([cos], [m], [], [
AC_MSG_ERROR([required functions are missing])
])