--- configure.orig 2020-06-26 20:48:51.000000000 -0500 +++ configure 2020-06-26 20:49:18.000000000 -0500 @@ -23730,7 +23730,7 @@ main () { - +#include main() { #ifdef WCOREFLAG --- lib/math.in.h.orig 2018-12-23 08:34:15.000000000 -0600 +++ lib/math.in.h 2020-06-26 21:03:03.000000000 -0500 @@ -22,6 +22,8 @@ #endif @PRAGMA_COLUMNS@ +#include "config.h" + /* The include_next requires a split double-inclusion guard. */ #@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_AS_FIRST_DIRECTIVE_MATH_H@