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fefaa2cc5c
Use my modular m4 library used for other things as well; update autoconf macros to 2.71 standard. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
26 lines
845 B
Text
26 lines
845 B
Text
dnl --------------------------------------------------------------------------
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dnl PA_CHECK_BAD_STDC_INLINE
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dnl
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dnl Some versions of gcc seem to apply -Wmissing-prototypes to C99
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dnl inline functions, which means we need to use GNU inline syntax
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_CHECK_BAD_STDC_INLINE],
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[AC_MSG_CHECKING([if $CC supports C99 external inlines])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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AC_INCLUDES_DEFAULT
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/* Don't mistake GNU inlines for c99 */
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#if defined(__GNUC__) && !defined(__GNUC_STDC_INLINE__)
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# error "Using gnu inline standard"
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#endif
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inline int foo(int x)
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{
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return x+1;
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}
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])],
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[AC_MSG_RESULT([yes])
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AC_DEFINE([HAVE_STDC_INLINE], 1,
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[Define to 1 if your compiler supports C99 extern inline])],
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[AC_MSG_RESULT([no])
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PA_ADD_CFLAGS([-fgnu89-inline])])])
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