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# FP_CHECK_ENVIRON
# -----------------
AC_DEFUN([FP_CHECK_ENVIRON],
[
dnl--------------------------------------------------------------------
dnl * Check whether the libc headers provide a declaration for the
dnl environ symbol. If not then we will provide one in RtsSymbols.c.
dnl See #20512, #20577, #20861.
dnl
dnl N.B. Windows declares environ in <stdlib.h>; most others declare it
dnl in <unistd.h>.
dnl--------------------------------------------------------------------
AC_CHECK_DECLS([environ], [], [], [
#include <stdlib.h>
#include <unistd.h>
])
])
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