From: Ken Raeburn <raeburn@mit.edu>
Date: Sun, 30 May 2004 20:06:15 +0000 (+0000)
Subject: * aclocal.m4 (KRB5_AC_GCC_ATTRS): On AIX 4, mark the destructor attribute as
X-Git-Tag: krb5-1.4-beta1~386
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=524da05167bbcaf31dde0ff60488191ade422f04;p=krb5.git

* aclocal.m4 (KRB5_AC_GCC_ATTRS): On AIX 4, mark the destructor attribute as
always not working, until we can construct a good test for the order of
destructors in the multiple shared library case.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@16378 dc483132-0cff-0310-8789-dd5450dbe970
---

diff --git a/src/ChangeLog b/src/ChangeLog
index 6cf887706..632676843 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2004-05-30  Ken Raeburn  <raeburn@mit.edu>
+
+	* aclocal.m4 (KRB5_AC_GCC_ATTRS): On AIX 4, mark the destructor
+	attribute as always not working, until we can construct a good
+	test for the order of destructors in the multiple shared library
+	case.
+
 2004-05-04  Ken Raeburn  <raeburn@mit.edu>
 
 	* configure.in: Generate a makefile in util/support.  Include
diff --git a/src/aclocal.m4 b/src/aclocal.m4
index 61cb2ef9f..51664026f 100644
--- a/src/aclocal.m4
+++ b/src/aclocal.m4
@@ -1602,6 +1602,19 @@ void foo2() { unlink("conftest.2"); }
 int main () { return 0; }],
 [test -r conftest.1 || a=yes
 test -r conftest.2 || b=yes], , AC_MSG_ERROR(Cannot test for constructor/destructor support when cross compiling))
+case $krb5_cv_host in
+*-*-aix4.*)
+	# Under AIX 4.3.3, at least, shared library destructor functions
+	# appear to get executed in reverse link order (right to left),
+	# so that a library's destructor function may run after that of
+	# libraries it depends on, and may still have to access in the
+	# destructor.
+	#
+	# That counts as "not working", for me, but it's a much more
+	# complicated test case to set up.
+	b=no
+	;;
+esac
 krb5_cv_attr_constructor_destructor="$a,$b"
 ])
 # Okay, krb5_cv_... should be set now.