* ltconfig.in (exclude_expsyms): Exclude _GLOBAL_OFFSET_TABLE_ by

default, as most a.out platforms use it, and end up in trouble if
we preload it, so it's safer to rule it out by default, and
special case its removal from exclude_expsyms if someone ever
complains.

diff --git a/ChangeLog b/ChangeLog
index 2f36a8b4e4e7daf44b2934cea332ce050647b8ec..77b9f31bf86c3212b889a4240a24839c6cd8d808 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+1999-04-05  Alexandre Oliva  <oliva@dcc.unicamp.br>
+
+       * ltconfig.in (exclude_expsyms): Exclude _GLOBAL_OFFSET_TABLE_ by
+       default, as most a.out platforms use it, and end up in trouble if
+       we preload it, so it's safer to rule it out by default, and
+       special case its removal from exclude_expsyms if someone ever
+       complains.
+
 1999-04-05 Thomas Tanner  <tanner@gmx.de>
 
        * doc/libtool.texi: reorder tests to reflect execution order,

diff --git a/ltconfig.in b/ltconfig.in
index 837ad4fcabd457a2de7b9f29f30c502272089734..75863f2b544a9c0be0549085d8ba3f0bb07a619d 100755 (executable)
--- a/ltconfig.in
+++ b/ltconfig.in
@@ -1015,7 +1015,12 @@ include_expsyms=
 # it will be wrapped by ` (' and `)$', so one must not match beginning or
 # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
 # as well as any symbol that contains `d'.
-exclude_expsyms=
+exclude_expsyms="_GLOBAL_OFFSET_TABLE_"
+# Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+# platforms (ab)use it in PIC code, but their linkers get confused if
+# the symbol is explicitly referenced.  Since portable code cannot
+# rely on this symbol name, it's probably fine to never include it in
+# preloaded symbol tables.
 
 case "$host_os" in
 cygwin* | mingw*)
@@ -1027,10 +1032,6 @@ cygwin* | mingw*)
   fi
   ;;
 
-freebsd2* | sunos4*)
-  exclude_expsyms="_GLOBAL_OFFSET_TABLE_"
-  ;;
-
 esac
 
 ld_shlibs=yes