1 | # hints/linux.sh |
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2 | # Original version by rsanders |
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3 | # Additional support by Kenneth Albanowski <kjahds@kjahds.com> |
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4 | # |
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5 | # ELF support by H.J. Lu <hjl@nynexst.com> |
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6 | # Additional info from Nigel Head <nhead@ESOC.bitnet> |
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7 | # and Kenneth Albanowski <kjahds@kjahds.com> |
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8 | # |
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9 | # Consolidated by Andy Dougherty <doughera@lafcol.lafayette.edu> |
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10 | # |
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11 | # Updated Thu Feb 8 11:56:10 EST 1996 |
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12 | |
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13 | # Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafcol.lafayette.edu> |
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14 | |
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15 | # Updated Fri Jun 21 11:07:54 EDT 1996 |
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16 | # NDBM support for ELF renabled by <kjahds@kjahds.com> |
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17 | |
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18 | # No version of Linux supports setuid scripts. |
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19 | d_suidsafe='undef' |
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20 | |
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21 | # Debian and Red Hat, and perhaps other vendors, provide both runtime and |
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22 | # development packages for some libraries. The runtime packages contain shared |
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23 | # libraries with version information in their names (e.g., libgdbm.so.1.7.3); |
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24 | # the development packages supplement this with versionless shared libraries |
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25 | # (e.g., libgdbm.so). |
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26 | # |
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27 | # If you want to link against such a library, you must install the development |
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28 | # version of the package. |
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29 | # |
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30 | # These packages use a -dev naming convention in both Debian and Red Hat: |
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31 | # libgdbmg1 (non-development version of GNU libc 2-linked GDBM library) |
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32 | # libgdbmg1-dev (development version of GNU libc 2-linked GDBM library) |
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33 | # So make sure that for any libraries you wish to link Perl with under |
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34 | # Debian or Red Hat you have the -dev packages installed. |
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35 | # |
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36 | # Some operating systems (e.g., Solaris 2.6) will link to a versioned shared |
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37 | # library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an |
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38 | # appropriate version of libgdbm, if one is available; Linux, however, doesn't |
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39 | # do the implicit mapping. |
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40 | ignore_versioned_solibs='y' |
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41 | |
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42 | # perl goes into the /usr tree. See the Filesystem Standard |
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43 | # available via anonymous FTP at tsx-11.mit.edu in |
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44 | # /pub/linux/docs/linux-standards/fsstnd. |
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45 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
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46 | # |
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47 | # Addendum for 5.005_57 and beyond: |
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48 | # |
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49 | # However, most Linux users probably already have a /usr/bin/perl. |
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50 | # We can't know whether the current user is intending to *replace* |
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51 | # that /usr/bin/perl or whether the user is intending to install |
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52 | # a *different* installation. |
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53 | # |
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54 | # Here is what we used to do: |
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55 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
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56 | # case "$prefix" in |
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57 | # '') prefix='/usr' ;; |
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58 | # esac |
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59 | # |
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60 | # For now, let's assume that most Linux users get their /usr/bin/perl |
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61 | # from some packaging system, so that those compiling from source are |
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62 | # probably the more experimental folks and hence probably aren't |
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63 | # intending to replace /usr/bin/perl (at least just yet). |
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64 | # This change makes linux consistent with most other unix platforms |
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65 | # in having a default of prefix=/usr/local. |
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66 | # These notes can probably safely be removed in 5.005_50 and beyond. |
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67 | # |
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68 | # 9 April 1999 Andy Dougherty <doughera@lafayette.edu> |
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69 | # |
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70 | |
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71 | # BSD compatability library no longer needed |
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72 | # 'kaffe' has a /usr/lib/libnet.so which is not at all relevent for perl. |
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73 | set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /'` |
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74 | shift |
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75 | libswanted="$*" |
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76 | |
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77 | # If you have glibc, then report the version for ./myconfig bug reporting. |
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78 | # (Configure doesn't need to know the specific version since it just uses |
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79 | # gcc to load the library for all tests.) |
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80 | # Is this sufficiently robust for libc5 systems as well as |
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81 | # glibc-2.1.x systems? |
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82 | # We don't use __GLIBC__ and __GLIBC_MINOR__ because they |
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83 | # are insufficiently precise to distinguish things like |
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84 | # libc-2.0.6 and libc-2.0.7. |
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85 | if test -L /lib/libc.so.6; then |
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86 | libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'` |
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87 | libc=/lib/$libc |
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88 | fi |
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89 | |
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90 | # Configure may fail to find lstat() since it's a static/inline |
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91 | # function in <sys/stat.h>. |
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92 | d_lstat=define |
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93 | |
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94 | # Explanation? |
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95 | case "$usemymalloc" in |
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96 | '') usemymalloc='n' ;; |
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97 | esac |
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98 | |
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99 | case "$optimize" in |
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100 | '') optimize='-O2' ;; |
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101 | esac |
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102 | |
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103 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
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104 | # for this test. |
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105 | cat >try.c <<'EOM' |
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106 | /* Test for whether ELF binaries are produced */ |
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107 | #include <fcntl.h> |
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108 | #include <stdlib.h> |
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109 | main() { |
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110 | char buffer[4]; |
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111 | int i=open("a.out",O_RDONLY); |
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112 | if(i==-1) |
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113 | exit(1); /* fail */ |
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114 | if(read(i,&buffer[0],4)<4) |
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115 | exit(1); /* fail */ |
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116 | if(buffer[0] != 127 || buffer[1] != 'E' || |
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117 | buffer[2] != 'L' || buffer[3] != 'F') |
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118 | exit(1); /* fail */ |
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119 | exit(0); /* succeed (yes, it's ELF) */ |
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120 | } |
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121 | EOM |
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122 | if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then |
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123 | cat <<'EOM' >&4 |
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124 | |
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125 | You appear to have ELF support. I'll try to use it for dynamic loading. |
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126 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
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127 | EOM |
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128 | |
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129 | #For RedHat Linux 3.0.3, you may need to fetch |
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130 | # ftp://ftp.redhat.com/pub/redhat-3.0.3/i386/updates/RPMS/ld.so-1.7.14-3.i386.rpm |
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131 | # |
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132 | |
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133 | else |
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134 | cat <<'EOM' >&4 |
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135 | |
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136 | You don't have an ELF gcc. I will use dld if possible. If you are |
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137 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
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138 | should probably upgrade. If you are forced to use 3.2.4, you should |
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139 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
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140 | that shared libraries will be disallowed. |
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141 | |
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142 | EOM |
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143 | lddlflags="-r $lddlflags" |
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144 | # These empty values are so that Configure doesn't put in the |
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145 | # Linux ELF values. |
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146 | ccdlflags=' ' |
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147 | cccdlflags=' ' |
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148 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
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149 | so='sa' |
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150 | dlext='o' |
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151 | nm_so_opt=' ' |
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152 | ## If you are using DLD 3.2.4 which does not support shared libs, |
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153 | ## uncomment the next two lines: |
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154 | #ldflags="-static" |
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155 | #so='none' |
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156 | |
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157 | # In addition, on some systems there is a problem with perl and NDBM |
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158 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
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159 | # in the tests as AnyDBM just freezing. Apparently, this only |
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160 | # happens on a.out systems, so we disable NDBM for all a.out linux |
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161 | # systems. If someone can suggest a more robust test |
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162 | # that would be appreciated. |
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163 | # |
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164 | # More info: |
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165 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
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166 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
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167 | # |
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168 | # I tried compiling with DBM support and sure enough things locked up |
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169 | # just as advertised. Checking into it, I found that the lockup was |
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170 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
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171 | # to and the jump into. |
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172 | # |
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173 | # To make a long story short, making sure that the *.a and *.sa pairs of |
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174 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
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175 | # were perfectly in sync took care of it. |
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176 | # |
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177 | # This will generate a harmless Whoa There! message |
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178 | case "$d_dbm_open" in |
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179 | '') cat <<'EOM' >&4 |
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180 | |
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181 | Disabling ndbm. This will generate a Whoa There message in Configure. |
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182 | Read hints/linux.sh for further information. |
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183 | EOM |
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184 | # You can override this with Configure -Dd_dbm_open |
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185 | d_dbm_open=undef |
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186 | ;; |
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187 | esac |
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188 | fi |
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189 | |
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190 | rm -f try.c a.out |
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191 | |
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192 | if /bin/bash -c exit; then |
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193 | echo '' |
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194 | echo 'You appear to have a working bash. Good.' |
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195 | else |
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196 | cat << 'EOM' >&4 |
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197 | |
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198 | *********************** Warning! ********************* |
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199 | It would appear you have a defective bash shell installed. This is likely to |
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200 | give you a failure of op/exec test #5 during the test phase of the build, |
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201 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
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202 | ****************************************************** |
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203 | EOM |
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204 | |
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205 | fi |
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206 | |
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207 | # On SPARClinux, |
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208 | # The following csh consistently coredumped in the test directory |
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209 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
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210 | |
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211 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
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212 | #Version : 5.2.6 Vendor: Red Hat Software |
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213 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
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214 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
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215 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
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216 | #Size : 184417 |
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217 | #Description : BSD c-shell |
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218 | |
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219 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
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220 | # where available. |
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221 | |
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222 | if [ ! "`csh -c 'echo $version' 2>/dev/null`" ] |
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223 | then |
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224 | echo 'Real csh found (might break); looking for tcsh ...' |
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225 | # Use ./UU/loc to find tcsh. (We no longer run in the hints/ directory) |
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226 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
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227 | echo "Found tcsh. I'll use it for globbing." |
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228 | # We can't change Configure's setting of $csh, due to the way |
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229 | # Configure handles $d_portable and commands found in $loclist. |
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230 | # We can set the value for CSH in config.h by setting full_csh. |
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231 | full_csh=$xxx |
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232 | else |
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233 | echo "Couldn't find tcsh. BEWARE: GLOBBING MIGHT BE BROKEN." |
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234 | fi |
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235 | else |
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236 | echo 'Your csh is really tcsh. Good.' |
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237 | fi |
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238 | |
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239 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
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240 | # Message-Id: <33EF1634.B36B6500@pobox.com> |
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241 | # |
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242 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
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243 | # special flags passed in order for dynamic loading to work. |
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244 | # instead of the recommended: |
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245 | # |
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246 | # ccdlflags='-rdynamic' |
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247 | # |
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248 | # it should be: |
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249 | # ccdlflags='-Wl,-E' |
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250 | # |
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251 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) |
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252 | # has problems with dynamic loading, uncomment the |
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253 | # following three lines, make distclean, and re-Configure: |
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254 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in |
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255 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; |
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256 | #esac |
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257 | |
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258 | case "`uname -r`" in |
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259 | sparc-linux) |
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260 | case "$cccdlflags" in |
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261 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; |
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262 | *) cccdlflags="$cccdlflags -fPIC" ;; |
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263 | esac |
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264 | ;; |
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265 | esac |
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266 | |
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267 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
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268 | # after it has prompted the user for whether to use threads. |
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269 | cat > UU/usethreads.cbu <<'EOCBU' |
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270 | case "$usethreads" in |
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271 | $define|true|[yY]*) |
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272 | ccflags="-D_REENTRANT $ccflags" |
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273 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
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274 | shift |
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275 | libswanted="$*" |
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276 | ;; |
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277 | esac |
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278 | EOCBU |
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279 | |
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280 | cat > UU/uselargefiles.cbu <<'EOCBU' |
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281 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
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282 | # after it has prompted the user for whether to use large files. |
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283 | case "$uselargefiles" in |
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284 | ''|$define|true|[yY]*) |
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285 | ccflags="$ccflags -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
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286 | ;; |
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287 | esac |
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288 | EOCBU |
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