1AC_DEFUN(AM_SANITY_CHECK_CC,
2[dnl Derived from macros from Bruno Haible and from Cygnus.
3AC_MSG_CHECKING([whether the compiler ($CC $CFLAGS $LDFLAGS) actually works])
4AC_LANG_SAVE
5  AC_LANG_C
6  AC_TRY_RUN([main() { exit(0); }],
7             am_cv_prog_cc_works=yes, am_cv_prog_cc_works=no,
8             dnl When crosscompiling, just try linking.
9             AC_TRY_LINK([], [], am_cv_prog_cc_works=yes,
10                         am_cv_prog_cc_works=no))
11AC_LANG_RESTORE
12case "$am_cv_prog_cc_works" in
13  *no) AC_MSG_ERROR([Installation or configuration problem: C compiler cannot create executables.]) ;;
14  *yes) ;;
15esac
16AC_MSG_RESULT(yes)
17])dnl
18