From: wolfgang <unknown>
Date: Thu, 4 Aug 2005 02:09:36 +0000 (+0000)
Subject: [project @ 2005-08-04 02:09:36 by wolfgang]
X-Git-Tag: Initial_conversion_from_CVS_complete~263
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=b655405aea9ab3824778b72fa0abcb224f056c05

[project @ 2005-08-04 02:09:36 by wolfgang]
Check for RTLD_DEFAULT in dlfcn.h and use it if it is available.
(On Mac OS X its value is -2, and using NULL instead does not work.)

MERGE TO STABLE
---

diff --git a/configure.ac b/configure.ac
index a71049a..6d33854 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1176,6 +1176,24 @@ AC_EGREP_CPP(yes,
   ])    
 AC_SUBST(HaveRtldNext)
 
+dnl ** RTLD_DEFAULT isn't available on cygwin
+AC_MSG_CHECKING(for RTLD_DEFAULT from dlfcn.h)
+AC_EGREP_CPP(yes,
+[
+ #include <dlfcn.h>
+ #ifdef RTLD_DEFAULT
+        yes
+ #endif
+], [
+  AC_MSG_RESULT(yes)
+  AC_DEFINE([HAVE_RTLDDEFAULT], [1], [Define to 1 if RTLD_DEFAULT is available.])
+  HaveRtldDefault=YES
+], [
+  AC_MSG_RESULT(no)
+  HaveRtldDefault=NO
+  ])    
+AC_SUBST(HaveRtldDefault)
+
 dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
 AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
 AC_EGREP_CPP(yes,