Commit | Line | Data |
1aef975c |
1 | # hints/linux.sh |
a0d0e21e |
2 | # Original version by rsanders |
1fc4cb55 |
3 | # Additional support by Kenneth Albanowski <kjahds@kjahds.com> |
1aef975c |
4 | # |
232e078e |
5 | # ELF support by H.J. Lu <hjl@nynexst.com> |
6 | # Additional info from Nigel Head <nhead@ESOC.bitnet> |
7 | # and Kenneth Albanowski <kjahds@kjahds.com> |
1aef975c |
8 | # |
232e078e |
9 | # Consolidated by Andy Dougherty <doughera@lafcol.lafayette.edu> |
1fc4cb55 |
10 | # |
9bed9d38 |
11 | # Updated Thu Feb 8 11:56:10 EST 1996 |
c07a80fd |
12 | # Add ability to use command-line overrides for optinal settings. |
232e078e |
13 | |
14 | # perl goes into the /usr tree. See the Filesystem Standard |
15 | # available via anonymous FTP at tsx-11.mit.edu in |
16 | # /pub/linux/docs/linux-standards/fsstnd. |
16d20bd9 |
17 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
232e078e |
18 | case "$prefix" in |
19 | '') prefix='/usr' ;; |
20 | esac |
1fc4cb55 |
21 | |
c07a80fd |
22 | # Perl users typically expect BSD style signal handling. |
23 | # This may not be needed in 5.002 since sigaction is used. |
16d20bd9 |
24 | # gcc-2.6.3 defines _G_HAVE_BOOL to 1, but doesn't actually supply bool. |
5d94fbed |
25 | ccflags="-D__USE_BSD_SIGNAL -Dbool=char -DHAS_BOOL $ccflags" |
1fc4cb55 |
26 | |
232e078e |
27 | # Configure may fail to find lstat() since it's a static/inline |
28 | # function in <sys/stat.h>. |
29 | d_lstat=define |
1aef975c |
30 | |
16d20bd9 |
31 | # I think Configure gets this right now, but I'd appreciate reports. |
a0d0e21e |
32 | malloctype='void *' |
16d20bd9 |
33 | |
34 | # Explanation? |
c07a80fd |
35 | case "$usemymalloc" in |
36 | '') usemymalloc='n' ;; |
37 | esac |
1aef975c |
38 | |
39 | case "$optimize" in |
40 | '') optimize='-O2' ;; |
41 | esac |
42 | |
232e078e |
43 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
44 | # for this test. |
45 | cat >try.c <<'EOM' |
46 | /* Test for whether ELF binaries are produced */ |
47 | #include <fcntl.h> |
48 | #include <stdlib.h> |
49 | main() { |
50 | char buffer[4]; |
51 | int i=open("a.out",O_RDONLY); |
52 | if(i==-1) |
53 | exit(1); /* fail */ |
54 | if(read(i,&buffer[0],4)<4) |
55 | exit(1); /* fail */ |
56 | if(buffer[0] != 127 || buffer[1] != 'E' || |
57 | buffer[2] != 'L' || buffer[3] != 'F') |
58 | exit(1); /* fail */ |
59 | exit(0); /* succeed (yes, it's ELF) */ |
60 | } |
61 | EOM |
f0b7e567 |
62 | if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then |
232e078e |
63 | cat <<'EOM' |
64 | |
65 | You appear to have ELF support. I'll try to use it for dynamic loading. |
66 | EOM |
232e078e |
67 | else |
16d20bd9 |
68 | cat <<'EOM' |
69 | |
70 | You don't have an ELF gcc. I will use dld if possible. If you are |
71 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
72 | should probably upgrade. If you are forced to use 3.2.4, you should |
c2960299 |
73 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
74 | that shared libraries will be disallowed. |
16d20bd9 |
75 | |
76 | EOM |
232e078e |
77 | lddlflags="-r $lddlflags" |
5d94fbed |
78 | # These empty values are so that Configure doesn't put in the |
79 | # Linux ELF values. |
80 | ccdlflags=' ' |
81 | cccdlflags=' ' |
c07a80fd |
82 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
1aef975c |
83 | so='sa' |
84 | dlext='o' |
85 | ## If you are using DLD 3.2.4 which does not support shared libs, |
86 | ## uncomment the next two lines: |
87 | #ldflags="-static" |
88 | #so='none' |
232e078e |
89 | fi |
a0d0e21e |
90 | |
c2960299 |
91 | rm -f try.c a.out |
16d20bd9 |
92 | |
c2960299 |
93 | if /bin/bash -c exit; then |
94 | echo You appear to have a working bash. Good. |
95 | else |
96 | cat << 'EOM' |
97 | Warning: it would appear you have a defective bash shell installed. This is |
98 | likely to give you a failure of op/exec test #5 during the test phase of the |
99 | build, Upgrading to a recent version (1.14.4 or later) should fix the |
100 | problem. |
a0d0e21e |
101 | |
a0d0e21e |
102 | EOM |
c2960299 |
103 | |
104 | fi |
16d20bd9 |
105 | |
106 | # In addition, on some systems there is a problem with perl and NDBM, which |
107 | # causes AnyDBM and NDBM_File to lock up. This is evidenced in the tests as |
108 | # AnyDBM just freezing. Currently we disable NDBM for all linux systems. |
109 | # If someone can suggest a more robust test, that would be appreciated. |
9bed9d38 |
110 | # |
111 | # More info: |
112 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
113 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
114 | # |
115 | # I tried compiling with DBM support and sure enough things locked up |
116 | # just as advertised. Checking into it, I found that the lockup was |
117 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
118 | # to and the jump into. |
119 | # |
120 | # To make a long story short, making sure that the *.a and *.sa pairs of |
121 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
122 | # were perfectly in sync took care of it. |
123 | # |
c2960299 |
124 | # This will generate a harmless message: |
125 | # Hmm...You had some extra variables I don't know about...I'll try to keep 'em. |
126 | # Propagating recommended variable d_dbm_open |
c07a80fd |
127 | case "$d_dbm_open" in |
128 | '') d_dbm_open=undef ;; |
129 | esac |
232e078e |
130 | |