* ltmain.sh: Detect and handle object name conflicts while

piecewise linking a static library.

2 files changed, 19 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index ebc04e98..2d1ff7c5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2002-05-06  Loren James Rittle  <rittle@latour.rsch.comm.mot.com>
+
+	* ltmain.sh: Detect and handle object name conflicts while
+	piecewise linking a static library.
+
 2002-05-02  Dave Vasilevsky  <thevas@mac.com>
 
 	* ltmain.in: Remove convenience libraries from deplibs for Darwin.
diff --git a/ltmain.in b/ltmain.in
index c6865f44..4487ab72 100644
--- a/ltmain.in
+++ b/ltmain.in
@@ -4326,6 +4326,20 @@ fi\
 	  objlist=
 	  concat_cmds=
 	  save_oldobjs=$oldobjs
+	  # GNU ar 2.10+ was changed to match POSIX; thus no paths are
+	  # encoded into archives.  This makes 'ar r' malfunction in
+	  # this piecewise linking case whenever conflicting object
+	  # names appear in distinct ar calls; check, warn and compensate.
+	    if (for obj in $save_oldobjs
+	    do
+	      $echo "X$obj" | $Xsed -e 's%^.*/%%'
+	    done | sort | sort -uc >/dev/null 2>&1); then
+	    :
+	  else
+	    $echo "$modename: warning: object name conflicts; overriding AR_FLAGS to 'cq'" 1>&2
+	    $echo "$modename: warning: to ensure that POSIX-compatible ar will work" 1>&2
+	    AR_FLAGS=cq
+	  fi
 	  for obj in $save_oldobjs
 	  do
 	    oldobjs="$objlist $obj"