blob: 6161f66d2e6535694c17c5cc44905f599d2e321c [file] [log] [blame] [edit]
# We need to be careful to avoid having the reference to
# program_invocation_name optimized out. We do that by
# returning the value.
AC_DEFUN([AC_PROGRAM_INVOCATION_NAME],
[AC_CACHE_CHECK(
for program_invocation_name,
ac_cv_have_program_invocation_name,
AC_TRY_LINK([extern char* program_invocation_name;],
[return *program_invocation_name;],
[ac_cv_have_program_invocation_name=yes],
[ac_cv_have_program_invocation_name=no])
)
if test "$ac_cv_have_program_invocation_name" = "yes"; then
AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME, 1,
[define if libc has program_invocation_name])
fi
])