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[eos/base.git] / util / src / TclTk / blt2.5 / cf / ldAix

diff --git a/util/src/TclTk/blt2.5/cf/ldAix b/util/src/TclTk/blt2.5/cf/ldAix
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+
+#
+# ldAix ldCmd ldArg ldArg ...
+#
+# This shell script provides a wrapper for ld under AIX in order to
+# create the .exp file required for linking.  Its arguments consist
+# of the name and arguments that would normally be provided to the
+# ld command.  This script extracts the names of the object files
+# from the argument list, creates a .exp file describing all of the
+# symbols exported by those files, and then invokes "ldCmd" to
+# perform the real link.
+#
+# SCCS: @(#) ldAix 1.8 97/02/21 14:50:27
+
+# Extract from the arguments the names of all of the object files.
+
+args=$*
+ofiles=""
+for i do
+    x=`echo $i | grep '[^.].o$'`
+    if test "$x" != ""; then
+       ofiles="$ofiles $i"
+    fi
+done
+
+# Create the export file from all of the object files, using nm followed
+# by sed editing.  Here are some tricky aspects of this:
+#
+# 1. Nm produces different output under AIX 4.1 than under AIX 3.2.5;
+#    the following statements handle both versions.
+# 2. Use the -g switch to nm instead of -e under 4.1 (this shows just
+#    externals, not statics;  -g isn't available under 3.2.5, though).
+# 3. Eliminate lines that end in ":": these are the names of object
+#    files (relevant in 4.1 only).
+# 4. Eliminate entries with the "U" key letter;  these are undefined
+#    symbols (relevant in 4.1 only).
+# 5. Eliminate lines that contain the string "0|extern" preceded by space;
+#    in 3.2.5, these are undefined symbols (address 0).
+# 6. Eliminate lines containing the "unamex" symbol.  In 3.2.5, these
+#    are also undefined symbols.
+# 7. If a line starts with ".", delete the leading ".", since this will
+#    just cause confusion later.
+# 8. Eliminate everything after the first field in a line, so that we're
+#    left with just the symbol name.
+
+nmopts="-g -C"
+osver=`uname -v`
+if test $osver -eq 3; then
+  nmopts="-e"
+fi
+rm -f lib.exp
+echo "#! " >lib.exp
+/usr/ccs/bin/nm $nmopts -h $ofiles | sed -e '/:$/d' -e '/ U /d' -e '/[         ]0|extern/d' -e '/unamex/d' -e 's/^\.//' -e 's/[        |].*//' | sort | uniq >>lib.exp
+
+# Extract the name of the object file that we're linking.  If it's a .a
+# file, then link all the objects together into a single file "shr.o"
+# and then put that into the archive.  Otherwise link the object files
+# directly into the .a file.
+
+outputFile=`echo $args | sed -e 's/.*-o \([^ ]*\).*/\1/'`
+noDotA=`echo $outputFile | sed -e '/\.a$/d'`
+echo "noDotA=\"$noDotA\""
+if test "$noDotA" = "" ; then
+    linkArgs=`echo $args | sed -e 's/-o .*\.a /-o shr.o /'`
+    echo $linkArgs
+    eval $linkArgs
+    echo ar cr $outputFile shr.o
+    ar cr $outputFile shr.o
+    rm -f shr.o
+else
+    eval $args
+fi