dnl -------------------------------------------------------------------------- dnl PA_CHECK_BAD_STDC_INLINE dnl dnl Some versions of gcc seem to apply -Wmissing-prototypes to C99 dnl inline functions, which means we need to use GNU inline syntax dnl -------------------------------------------------------------------------- AC_DEFUN([PA_CHECK_BAD_STDC_INLINE], [AC_MSG_CHECKING([if $CC supports C99 external inlines]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([ AC_INCLUDES_DEFAULT /* Don't mistake GNU inlines for c99 */ #if defined(__GNUC__) && !defined(__GNUC_STDC_INLINE__) # error "Using gnu inline standard" #endif inline int foo(int x) { return x+1; } ])], [AC_MSG_RESULT([yes]) AC_DEFINE([HAVE_STDC_INLINE], 1, [Define to 1 if your compiler supports C99 extern inline])], [AC_MSG_RESULT([no]) PA_ADD_CFLAGS([-fgnu89-inline])])])