X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FBeginPrivate.h;h=6471b92a407638f69c02d4cb302c401558e678a2;hb=8625c675de45bdb8bcfa795572ce7c47687c147c;hp=3ba4b8913df994bf73f3283631feb77f99810872;hpb=51b85031ce99f1e9d4c72249d6d85672188f0fbd;p=ghc-hetmet.git

diff --git a/rts/BeginPrivate.h b/rts/BeginPrivate.h
index 3ba4b89..6471b92 100644
--- a/rts/BeginPrivate.h
+++ b/rts/BeginPrivate.h
@@ -1,3 +1,10 @@
-#if __GNUC__ >= 4
+/* We don't use symbol visibility pragmas on FreeBSD, because it causes
+   "undefined reference" errors at link-time.  The true reasons are
+   unknown, however FreeBSD 8.x includes GCC 4.2.1 in the base system,
+   which might be buggy. */
+/* On Windows, with gcc 4.5.0-1, using visibility hidden gives:
+       error: visibility attribute not supported in this configuration; ignored
+   */
+#if defined(HAS_VISIBILITY_HIDDEN) && !defined(freebsd_HOST_OS)
 #pragma GCC visibility push(hidden)
 #endif