18 lines
645 B
Plaintext
18 lines
645 B
Plaintext
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AC_DEFUN(AM_SANITY_CHECK_CC,
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[dnl Derived from macros from Bruno Haible and from Cygnus.
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AC_MSG_CHECKING([whether the compiler ($CC $CFLAGS $LDFLAGS) actually works])
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AC_LANG_SAVE
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AC_LANG_C
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AC_TRY_RUN([main() { exit(0); }],
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am_cv_prog_cc_works=yes, am_cv_prog_cc_works=no,
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dnl When crosscompiling, just try linking.
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AC_TRY_LINK([], [], am_cv_prog_cc_works=yes,
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am_cv_prog_cc_works=no))
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AC_LANG_RESTORE
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case "$am_cv_prog_cc_works" in
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*no) AC_MSG_ERROR([Installation or configuration problem: C compiler cannot create executables.]) ;;
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*yes) ;;
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esac
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AC_MSG_RESULT(yes)
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])dnl
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