[Chicken-hackers] [PATCH] use -headerpad_max_install_names on Mac OS X when linking shared libs

[Felix Winkelmann]

Since we use install_name_tool(1) to modify the runpath of shared libraries 
compiled
with csc (all *.so's), this may fail, if the space inside the binary is 
insufficient
to hold the new updated paths. The patch adds "-headerpad_max_install_names" to 
the
linker command (both for gcc(1) and by using "-Wl,..." for the linker, I found 
this
on the 'net, so I'm not sure if this is really required).


felix

>From 2f8748e0989279d2521d3f6e14981c1403322068 Mon Sep 17 00:00:00 2001
From: felix <address@hidden>
Date: Tue, 27 Aug 2013 16:15:12 +0200
Subject: [PATCH] on darwin, pass -headerpad_max_install_names or
 install_name_tool may fail, depending on path length. and
 all that just to save a few kb, thank you, Apple!

---
 csc.scm |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/csc.scm b/csc.scm
index a54c14c..ce35559 100644
--- a/csc.scm
+++ b/csc.scm
@@ -519,7 +519,7 @@ EOF
     (set! compile-options (append pic-options '("-DC_SHARED") compile-options))
     (set! link-options
       (cons (cond
-             (osx (if lib "-dynamiclib" "-bundle"))
+             (osx (if lib "-dynamiclib" "-bundle 
-Wl,-headerpad_max_install_names -headerpad_max_install_names"))
              (else "-shared")) link-options))
     (set! shared #t) )
 
-- 
1.7.9.5