diff options
Diffstat (limited to 'autoconf/configure.ac')
| -rw-r--r-- | autoconf/configure.ac | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac index 680cc1ddd9..83d54681ac 100644 --- a/autoconf/configure.ac +++ b/autoconf/configure.ac @@ -735,6 +735,10 @@ 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_CHECK_LIB(ffi,ffi_call,[have_libffi=1], + 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.])) @@ -791,12 +795,17 @@ AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h]) AC_CHECK_HEADERS([sys/types.h malloc/malloc.h mach/mach.h]) if test "$ENABLE_THREADS" -eq 1 ; then AC_CHECK_HEADERS(pthread.h, - AC_SUBST(HAVE_PTHREAD, 1), - AC_SUBST(HAVE_PTHREAD, 0)) + AC_SUBST(HAVE_PTHREAD, 1), + AC_SUBST(HAVE_PTHREAD, 0)) else AC_SUBST(HAVE_PTHREAD, 0) fi +dnl Once we know we have libffi, try to find ffi.h. +if test -n "$have_libffi" ; then + AC_CHECK_HEADERS([ffi.h ffi/ffi.h], [AC_SUBST(HAVE_FFI, 1)]) +fi + dnl===-----------------------------------------------------------------------=== dnl=== dnl=== SECTION 7: Check for types and structures @@ -954,7 +963,7 @@ AC_DEFINE_UNQUOTED(LLVM_MANDIR, "$LLVM_MANDIR", AC_DEFINE_UNQUOTED(LLVM_CONFIGTIME, "$LLVM_CONFIGTIME", [Time at which LLVM was configured]) AC_DEFINE_UNQUOTED(LLVM_HOSTTRIPLE, "$host", - [Host triple we were built on]) + [Host triple we were built on]) # Determine which bindings to build. if test "$BINDINGS_TO_BUILD" = auto ; then |