Improved CON_AUTOLOAD tests.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@2780 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,14 @@
+Tue Mar 31 11:32:03 1998  Adam Fedor  <fedor@doc.com>
+
+	* aclocal.m4 (OBJC_CON_AUTOLOAD): Improved test. Check nm output
+	for indicator functions.
+	* configure: Regenerate.
+
+	* checks/GNUmakefile (LoadMe_RESOURCE_FILES): Changed name.
+
+	* doc/gnustep-howto.tmpl.texi: Update.
+	* doc/status.tmpl.texi: Likewise.
+
 Fri Mar 20 11:15:00 1998  Richard Frith-Macdonald  <richard@brainstorm.co.uk>
 
 	* checks/client.m: Added some tests for passing objects byref

Documentation/gnustep-howto.tmpl.texi

@@ -170,9 +170,11 @@ make install
 
 @subsection Compiling PCThreads
 
-For Linux/GNU systems on Intel x86 processors, the PCThreads library is
+For GNU/Linux systems on Intel x86 processors, the PCThreads library is
 known to work with GNUstep.  PCThreads version 1.1.0 is an enhanced version
-of PCThread 1.0.0 with better support for GNUstep.
+of PCThread 1.0.0 with better support for GNUstep. PCThreads may no longer
+be necessary on all GNU/Linux systems, such as Debian 2.0 or other systems
+with glibc2.
 
 @example
 cd /usr/src
@@ -204,7 +206,7 @@ Special note for Solaris users.  GNUstep works on Solaris/Intel systems;
 however, GCC 2.8.0 has problems, so you must use the older patched GCC
 2.7.2 instead.  GCC 2.8.0 has also induced a problem on Solaris/Sparc
 systems; however, there is a patch to fix this in the contrib directory
-on the ftp sites.
+on the ftp sites (This is also true for egcs-1.0.1).
 
 @table @asis
 @item 1. Uncompress GCC:

Documentation/status.tmpl.texi

@@ -35,6 +35,7 @@ Unknown status.
 	Doesn't yet call -awakeAfterUsingCoder:.
 @item NSArray::			[9]
 @item NSAssertionHandler::		[9]
+@item NSAttributedString::		[8]
 @item NSAutoreleasePool::		[9]
 	But not exception- safe
 @item NSBundle::			[8]
@@ -60,11 +61,17 @@ Unknown status.
 @item NSDeserializer::		[7]
 @item NSDictionary::		[8]
 @item NSDistantObject::		[7]
+@item NSDistributedLock::		[7]
 @item NSEnumerator::		[9]
 @item NSException::		[9]
 	But this needs integration with new, better
+@item NSFileHandle::		[9]
+@item NSFileManager::		[9]
+@item NSHashTable::		[8]
+@item NSHost::			[8]
 @item NSInvocation::		[3]
 @item NSLock::			[8]
+@item NSMapTable::		[8]
 @item NSMethodSignature::		[4]
 @item NSMutableArray::		[8]
 @item NSMutableCharacterSet::	[7]
@@ -89,6 +96,7 @@ Unknown status.
 @item NSString::			[8]
 	Careful, relationship with GNU String is tricky; this could
 	 also use fixing.
+@item NSTask::				[8]
 @item NSThread::			[8]
 @item NSTimeZone::			[8]
 @item NSTimeZoneDetail::		[8]

Testing/GNUmakefile

@@ -138,7 +138,7 @@ BUNDLE_NAME=LoadMe
 LoadMe_OBJC_FILES = LoadMe.m MyCategory.m SecondClass.m
 
 # The bundle resource files and directories
-LoadMe_RESOURCES = English.lproj/NXStringTable.example
+LoadMe_RESOURCE_FILES = English.lproj/NXStringTable.example
 LoadMe_RESOURCE_DIRS = English.lproj
 
 SRCS = $(TEST_TOOL_NAME:=.m)

aclocal.m4

@@ -28,11 +28,9 @@ AC_DEFUN(OBJC_CON_AUTOLOAD,
 #
 # If this system supports autoloading of constructors, that means that gcc
 # doesn't have to do it for us via collect2. This routine tests for this
-# in a very roundabout way by intentionally trying to link a program that
+# in a very roundabout way by compiling a program with a constructor and
-# will give a link error, and examining the output to see if collect2 gave
+# testing the file, via nm, for certain symbols that collect2 includes to
-# the error (which means the system does not autoload constructors)
+# handle loading of constructors.
-# The only problem is this test might incorrectly return yes if it fails
-# for some other reason besides a link problem.
 #
 # Makes the following substitutions:
 #	Defines CON_AUTOLOAD (whether constructor functions are autoloaded)
@@ -42,16 +40,18 @@ AC_MSG_CHECKING(loading of constructor functions)
 AC_CACHE_VAL(objc_cv_con_autoload,
 [dnl 
 cat > conftest.constructor.c <<EOF
-extern void undefined_function();
+void cons_functions() __attribute__ ((constructor));
+void cons_functions() {}
 int main()
 {
-  undefined_function();
+  return 0;
 }
 EOF
-if test -n "`${CC-cc} -o conftest.constructor conftest.constructor.c 2>&1 | grep collect2`"; then
+${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.constructor.$ac_ext $LIBS 1>&5
-  objc_cv_con_autoload=no
+if test -n "`nm conftest | grep _ctors_aux`"; then 
-else
   objc_cv_con_autoload=yes
+else
+  objc_cv_con_autoload=no
 fi
 ])
 if test $objc_cv_con_autoload = yes; then

configure

@@ -1178,31 +1178,31 @@ EOF
 #
 # If this system supports autoloading of constructors, that means that gcc
 # doesn't have to do it for us via collect2. This routine tests for this
-# in a very roundabout way by intentionally trying to link a program that
+# in a very roundabout way by compiling a program with a constructor and
-# will give a link error, and examining the output to see if collect2 gave
+# testing the file, via nm, for certain symbols that collect2 includes to
-# the error (which means the system does not autoload constructors)
+# handle loading of constructors.
-# The only problem is this test might incorrectly return yes if it fails
-# for some other reason besides a link problem.
 #
 # Makes the following substitutions:
 #	Defines CON_AUTOLOAD (whether constructor functions are autoloaded)
 #--------------------------------------------------------------------
 echo $ac_n "checking loading of constructor functions""... $ac_c" 1>&6
-echo "configure:1192: checking loading of constructor functions" >&5
+echo "configure:1190: checking loading of constructor functions" >&5
 if eval "test \"`echo '$''{'objc_cv_con_autoload'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.constructor.c <<EOF
-extern void undefined_function();
+void cons_functions() __attribute__ ((constructor));
+void cons_functions() {}
 int main()
 {
-  undefined_function();
+  return 0;
 }
 EOF
-if test -n "`${CC-cc} -o conftest.constructor conftest.constructor.c 2>&1 | grep collect2`"; then
+${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.constructor.$ac_ext $LIBS 1>&5
-  objc_cv_con_autoload=no
+if test -n "`nm conftest | grep _ctors_aux`"; then 
-else
   objc_cv_con_autoload=yes
+else
+  objc_cv_con_autoload=no
 fi
 
 fi