[tor-commits] [tor/master] Add a cross-compile action to AC_RUN_IFELSE

[nickm at torproject.org]

commit ef2b7c8a9b99bbee2b4c8563fe35491783e95033
Author: cypherpunks <cypherpunks at torproject.org>
Date:   Mon Mar 28 20:29:19 2016 +0000

    Add a cross-compile action to AC_RUN_IFELSE
---
 acinclude.m4 | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/acinclude.m4 b/acinclude.m4
index bf39601..193d3a7 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -245,7 +245,10 @@ if test "$cross_compiling" != yes; then
        LDFLAGS="$tor_tryextra $orig_LDFLAGS"
      fi
      AC_RUN_IFELSE([AC_LANG_PROGRAM([$5], [$6])],
-                   [runnable=yes], [runnable=no])
+                   [runnable=yes], [runnable=no],
+                   [AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
+                                   [runnable=yes],
+                                   [runnable=no])])
      if test "$runnable" = yes; then
         tor_cv_library_$1_linker_option=$tor_tryextra
         break