1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
#! /bin/sh
#
# link.sh -- try linking Vim with different sets of libraries, finding the
# minimal set for fastest startup. The problem is that configure adds a few
# libraries when they exist, but this doesn't mean they are needed for Vim.
#
# Author: Bram Moolenaar
# Last change: 2006 Sep 26
# License: Public domain
#
# Warning: This fails miserably if the linker doesn't return an error code!
#
# Otherwise this script is fail-safe, falling back to the original full link
# command if anything fails.
echo "$LINK " >link.cmd
exit_value=0
#
# If auto/link.sed already exists, use it. We assume a previous run of
# link.sh has found the correct set of libraries.
#
if test -f auto/link.sed; then
echo "link.sh: The file 'auto/link.sed' exists, which is going to be used now."
echo "link.sh: If linking fails, try deleting the auto/link.sed file."
echo "link.sh: If this fails too, try creating an empty auto/link.sed file."
else
# If linking works with the full link command, try removing some libraries,
# that are known not to be needed on at least one system.
# Remove auto/pathdef.c if there is a new link command and compile it again.
# There is a loop to remove libraries that appear several times.
#
# Notes:
# - Can't remove Xext; It links fine but will give an error when running gvim
# with Motif.
# - Don't remove the last -lm: On HP-UX Vim links OK but crashes when the GTK
# GUI is started, because the "floor" symbol could not be resolved.
#
cat link.cmd
if sh link.cmd; then
touch auto/link.sed
cp link.cmd linkit.sh
for libname in SM ICE nsl dnet dnet_stub inet socket dir elf iconv Xt Xmu Xp Xpm X11 Xdmcp x w dl pthread thread readline m perl crypt attr; do
cont=yes
while test -n "$cont"; do
if grep "l$libname " linkit.sh >/dev/null; then
if test ! -f link1.sed; then
echo "link.sh: OK, linking works, let's try removing a few libraries."
echo "link.sh: See auto/link.log for details."
rm -f auto/link.log
fi
echo "s/-l$libname *//" >link1.sed
sed -f auto/link.sed <link.cmd >linkit2.sh
sed -f link1.sed <linkit2.sh >linkit.sh
# keep the last -lm
if test $libname != "m" || grep "lm " linkit.sh >/dev/null; then
echo "link.sh: Trying to remove the $libname library..."
cat linkit.sh >>auto/link.log
# Redirect this link output, it may contain error messages which
# should be ignored.
if sh linkit.sh >>auto/link.log 2>&1; then
echo "link.sh: We don't need the $libname library!"
cat link1.sed >>auto/link.sed
rm -f auto/pathdef.c
else
echo "link.sh: We DO need the $libname library."
cont=
cp link.cmd linkit.sh
fi
else
cont=
cp link.cmd linkit.sh
fi
else
cont=
cp link.cmd linkit.sh
fi
done
done
if test ! -f auto/pathdef.c; then
$MAKE objects/pathdef.o
fi
if test ! -f link1.sed; then
echo "link.sh: Linked fine, no libraries can be removed"
touch link3.sed
fi
else
exit_value=$?
fi
fi
#
# Now do the real linking.
#
if test -s auto/link.sed; then
echo "link.sh: Using auto/link.sed file to remove a few libraries"
sed -f auto/link.sed <link.cmd >linkit.sh
cat linkit.sh
if sh linkit.sh; then
exit_value=0
echo "link.sh: Linked fine with a few libraries removed"
else
exit_value=$?
echo "link.sh: Linking failed, making auto/link.sed empty and trying again"
mv -f auto/link.sed link2.sed
touch auto/link.sed
rm -f auto/pathdef.c
$MAKE objects/pathdef.o
fi
fi
if test -f auto/link.sed -a ! -s auto/link.sed -a ! -f link3.sed; then
echo "link.sh: Using unmodified link command"
cat link.cmd
if sh link.cmd; then
exit_value=0
echo "link.sh: Linked OK"
else
exit_value=$?
if test -f link2.sed; then
echo "link.sh: Linking doesn't work at all, removing auto/link.sed"
rm -f auto/link.sed
fi
fi
fi
#
# cleanup
#
rm -f link.cmd linkit.sh link1.sed link2.sed link3.sed linkit2.sh
#
# return an error code if something went wrong
#
exit $exit_value
# vim:set sw=2 et:
|
