33 lines
1.1 KiB
Text
33 lines
1.1 KiB
Text
--- ltmain.sh 2004-02-11 20:55:14.587581248 +0200
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+++ ltmain.sh 2004-02-11 21:15:33.467283368 +0200
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@@ -117,6 +117,30 @@
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execute_dlfiles=
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lo2o="s/\\.lo\$/.${objext}/"
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o2lo="s/\\.${objext}\$/.lo/"
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+
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+if test -z "$max_cmd_len"; then
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+ i=0
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+ testring="ABCD"
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+ new_result=
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+
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+ # If test is not a shell built-in, we'll probably end up computing a
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+ # maximum length that is only half of the actual maximum length, but
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+ # we can't tell.
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+ while (test "X"`$SHELL $0 --fallback-echo "X$testring" 2>/dev/null` \
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+ = "XX$testring") >/dev/null 2>&1 &&
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+ new_result=`expr "X$testring" : ".*" 2>&1` &&
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+ max_cmd_len="$new_result" &&
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+ test $i != 17 # 1/2 MB should be enough
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+ do
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+ i=`expr $i + 1`
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+ testring="$testring$testring"
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+ done
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+ testring=
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+ # Add a significant safety factor because C++ compilers can tack on massive
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+ # amounts of additional arguments before passing them to the linker.
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+ # It appears as though 1/2 is a usable value.
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+ max_cmd_len=`expr $max_cmd_len \/ 2`
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+fi
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#####################################
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# Shell function definitions:
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