26 lines
585 B
Plaintext
26 lines
585 B
Plaintext
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dnl modified AC_C_INLINE from autoconf/c.m4
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AN_IDENTIFIER([attribute], [AC_C_ATTRIBUTE])
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AC_DEFUN([AC_C_ATTRIBUTE],
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[AC_CACHE_CHECK([for __attribute__], ac_cv_c_attribute,
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[
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AC_COMPILE_IFELSE([AC_LANG_SOURCE(
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[void foo(void) __attribute__ ((__noreturn__));]
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)],
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[ac_cv_c_attribute=yes],
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[ac_cv_c_attribute=no]
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)
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])
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AH_VERBATIM([attribute],
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[/* Define to `__attribute__' to nothing if it's not supported. */
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#undef __attribute__])
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case $ac_cv_c_attribute in
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yes) ;;
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no)
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cat >>confdefs.h <<_ACEOF
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#define __attribute__(x) /* nothing */
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_ACEOF
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;;
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esac
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])# AC_C_ATTRIBUTE
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