From 86380bb177b9e18e345bc302efb3a84b2c5758a9 Mon Sep 17 00:00:00 2001
From: Aleric Inglewood <Aleric.Inglewood@gmail.com>
Date: Wed, 15 Dec 2010 20:55:10 +0100
Subject: VWR-24254: Add support for using ld.gold on linux.

To use ld.gold configure with:
  -DCMAKE_EXE_LINKER_FLAGS:STRING="-Wl,-use-gold".
ld.gold links the viewer on my machine in 8 seconds, as
opposed to 19 seconds with ld.bfd. Moreover, it uses a
LOT less memory during linking (about 750 MB instead of
2.5 GB!).

VWR-24254: Don't link with fontconfig on non-linux.

While we already added fontconfig in the above patch,
that code turned out to also be used by Windows and
Darwin (contrary to the comments in the code).
After looking at the history of commits and a
discussion on IRC it was decided that the original
coder (Kyle Ambroff <ambroff@lindenlab.com>) really
meant (LINUX AND VIEWER) instead of (NOT LINUX OR VIEWER).
---
 indra/cmake/LLCommon.cmake | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'indra/cmake/LLCommon.cmake')

diff --git a/indra/cmake/LLCommon.cmake b/indra/cmake/LLCommon.cmake
index d1ab264a41..17e211cb99 100644
--- a/indra/cmake/LLCommon.cmake
+++ b/indra/cmake/LLCommon.cmake
@@ -13,7 +13,14 @@ set(LLCOMMON_INCLUDE_DIRS
     ${Boost_INCLUDE_DIRS}
     )
 
-set(LLCOMMON_LIBRARIES llcommon)
+if (LINUX)
+    # In order to support using ld.gold on linux, we need to explicitely
+    # specify all libraries that llcommon uses.
+    # llcommon uses `clock_gettime' which is provided by librt on linux.
+    set(LLCOMMON_LIBRARIES llcommon rt)
+else (LINUX)
+    set(LLCOMMON_LIBRARIES llcommon)
+endif (LINUX)
 
 add_definitions(${TCMALLOC_FLAG})
 
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