Reported as fixing the library on OS X Yosemite:
https://gcc.gnu.org/ml/jit/2015-q3/msg00147.html
Committed to trunk as r226882.
Committed to gcc-5-branch as r226883.
gcc/jit/ChangeLog:
* jit-playback.c (invoke_driver): On OS X, add
"-Wl,-undefined,dynamic_lookup" to the driver arguments.
---
gcc/jit/jit-playback.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/gcc/jit/jit-playback.c b/gcc/jit/jit-playback.c
index 925fa86..01cfd4b 100644
--- a/gcc/jit/jit-playback.c
+++ b/gcc/jit/jit-playback.c
@@ -2416,6 +2416,15 @@ invoke_driver (const char *ctxt_progname,
time. */
ADD_ARG ("-fno-use-linker-plugin");
+#if defined (DARWIN_X86) || defined (DARWIN_PPC)
+ /* OS X's linker defaults to treating undefined symbols as errors.
+ If the context has any imported functions or globals they will be
+ undefined until the .so is dynamically-linked into the process.
+ Ensure that the driver passes in "-undefined dynamic_lookup" to the
+ linker. */
+ ADD_ARG ("-Wl,-undefined,dynamic_lookup");
+#endif
+
/* pex argv arrays are NULL-terminated. */
argvec.safe_push (NULL);
--
1.8.5.3
