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path: root/infrastructure/m4/ax_func_syscall.m4
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* Reverse the test for __syscall(), remove the test for syscall(),Chris Wilson2008-10-26
| | | | | | | | | | | | | remove the definition and reverse the sense in ax_func_syscall.m4 (which checks for __syscall() needing definition). Autoconf's AC_CHECK_FUNC defines it when testing for its presence, so HAVE___SYSCALL will be true even if __syscall has no definition in the system libraries, and this is precisely the case that we want to test for, so now we test whether the test program compiles with no explicit definition (only the system headers) and if that fails, we set HAVE___SYSCALL_NEED_DEFN to 1.
* Update autoconf to silence warnings on autoconf >= 2.62James O'Gorman2008-10-05
| | | | | | * AC_SUBST now only works with one variable per call * When using AC_CACHE the variable must contain the string '_cv_', thus prefix all cache variables with box_cv_
* Merged martin/autoconf at r35 to trunkMartin Ebourne2005-12-07