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Make the Interpreter use libffi if it's available. Patch from Alexei Svitkine!

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This requires a rebuild of 'configure' itself. I will be committing that next, but
built with the wrong version of autoconf. Somebody who has the right one, please update
it.

As a side-note, because of the way autoconf works, all built tools will link against
libffi, not just lli. If you know how to fix this, please let me know ...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62553 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2009-01-20 00:51:40 +00:00
parent d0deec20f6
commit f514e2d28f
2 changed files with 215 additions and 496 deletions
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9
autoconf/configure.ac
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@@ -717,6 +717,11 @@ AC_SEARCH_LIBS(dlopen,dl,AC_DEFINE([HAVE_DLOPEN],[1],
[Define if dlopen() is available on this platform.]),
AC_MSG_WARN([dlopen() not found - disabling plugin support]))
dnl libffi is optional; used to call external functions from the interpreter
AC_SEARCH_LIBS(ffi_call,ffi,AC_DEFINE([HAVE_LIBFFI],[1],
[Define to 1 if you have the libffi library (-lffi).]),
AC_MSG_WARN([libffi not found - disabling external calls from interpreter]))
dnl mallinfo is optional; the code can compile (minus features) without it
AC_SEARCH_LIBS(mallinfo,malloc,AC_DEFINE([HAVE_MALLINFO],[1],
[Define if mallinfo() is available on this platform.]))
@@ -779,6 +784,10 @@ else
AC_SUBST(HAVE_PTHREAD, 0)
fi
dnl Debian vs. the world.
AC_CHECK_HEADER(ffi/ffi.h, AC_DEFINE(FFI_HEADER, ["ffi/ffi.h"], [Path to ffi.h]))
AC_CHECK_HEADER(ffi.h, AC_DEFINE(FFI_HEADER, ["ffi.h"], [Path to ffi.h]))
dnl===-----------------------------------------------------------------------===
dnl===
dnl=== SECTION 7: Check for types and structures