| 1 | # hints/linux.sh |
| 2 | # Original version by rsanders |
| 3 | # Additional support by Kenneth Albanowski <kjahds@kjahds.com> |
| 4 | # |
| 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> |
| 8 | # |
| 9 | # Consolidated by Andy Dougherty <doughera@lafcol.lafayette.edu> |
| 10 | # |
| 11 | # Updated Thu Feb 8 11:56:10 EST 1996 |
| 12 | |
| 13 | # Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafcol.lafayette.edu> |
| 14 | |
| 15 | # Updated Fri Jun 21 11:07:54 EDT 1996 |
| 16 | # NDBM support for ELF renabled by <kjahds@kjahds.com> |
| 17 | |
| 18 | # No version of Linux supports setuid scripts. |
| 19 | d_suidsafe='undef' |
| 20 | |
| 21 | # Debian and Red Hat, and perhaps other vendors, provide both runtime and |
| 22 | # development packages for some libraries. The runtime packages contain shared |
| 23 | # libraries with version information in their names (e.g., libgdbm.so.1.7.3); |
| 24 | # the development packages supplement this with versionless shared libraries |
| 25 | # (e.g., libgdbm.so). |
| 26 | # |
| 27 | # If you want to link against such a library, you must install the development |
| 28 | # version of the package. |
| 29 | # |
| 30 | # These packages use a -dev naming convention in both Debian and Red Hat: |
| 31 | # libgdbmg1 (non-development version of GNU libc 2-linked GDBM library) |
| 32 | # libgdbmg1-dev (development version of GNU libc 2-linked GDBM library) |
| 33 | # So make sure that for any libraries you wish to link Perl with under |
| 34 | # Debian or Red Hat you have the -dev packages installed. |
| 35 | # |
| 36 | # Some operating systems (e.g., Solaris 2.6) will link to a versioned shared |
| 37 | # library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an |
| 38 | # appropriate version of libgdbm, if one is available; Linux, however, doesn't |
| 39 | # do the implicit mapping. |
| 40 | ignore_versioned_solibs='y' |
| 41 | |
| 42 | # perl goes into the /usr tree. See the Filesystem Standard |
| 43 | # available via anonymous FTP at tsx-11.mit.edu in |
| 44 | # /pub/linux/docs/linux-standards/fsstnd. |
| 45 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
| 46 | # |
| 47 | # Addendum for 5.005_57 and beyond: |
| 48 | # |
| 49 | # However, most Linux users probably already have a /usr/bin/perl. |
| 50 | # We can't know whether the current user is intending to *replace* |
| 51 | # that /usr/bin/perl or whether the user is intending to install |
| 52 | # a *different* installation. |
| 53 | # |
| 54 | # Here is what we used to do: |
| 55 | # Allow a command line override, e.g. Configure -Dprefix=/foo/bar |
| 56 | # case "$prefix" in |
| 57 | # '') prefix='/usr' ;; |
| 58 | # esac |
| 59 | # |
| 60 | # For now, let's assume that most Linux users get their /usr/bin/perl |
| 61 | # from some packaging system, so that those compiling from source are |
| 62 | # probably the more experimental folks and hence probably aren't |
| 63 | # intending to replace /usr/bin/perl (at least just yet). |
| 64 | # This change makes linux consistent with most other unix platforms |
| 65 | # in having a default of prefix=/usr/local. |
| 66 | # These notes can probably safely be removed in 5.005_50 and beyond. |
| 67 | # |
| 68 | # 9 April 1999 Andy Dougherty <doughera@lafayette.edu> |
| 69 | # |
| 70 | |
| 71 | # BSD compatability library no longer needed |
| 72 | # 'kaffe' has a /usr/lib/libnet.so which is not at all relevent for perl. |
| 73 | set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /'` |
| 74 | shift |
| 75 | libswanted="$*" |
| 76 | |
| 77 | # If you have glibc, then report the version for ./myconfig bug reporting. |
| 78 | # (Configure doesn't need to know the specific version since it just uses |
| 79 | # gcc to load the library for all tests.) |
| 80 | # Is this sufficiently robust for libc5 systems as well as |
| 81 | # glibc-2.1.x systems? |
| 82 | # We don't use __GLIBC__ and __GLIBC_MINOR__ because they |
| 83 | # are insufficiently precise to distinguish things like |
| 84 | # libc-2.0.6 and libc-2.0.7. |
| 85 | if test -L /lib/libc.so.6; then |
| 86 | libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'` |
| 87 | libc=/lib/$libc |
| 88 | fi |
| 89 | |
| 90 | # Configure may fail to find lstat() since it's a static/inline |
| 91 | # function in <sys/stat.h>. |
| 92 | d_lstat=define |
| 93 | |
| 94 | # Explanation? |
| 95 | case "$usemymalloc" in |
| 96 | '') usemymalloc='n' ;; |
| 97 | esac |
| 98 | |
| 99 | case "$optimize" in |
| 100 | '') optimize='-O2' ;; |
| 101 | esac |
| 102 | |
| 103 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
| 104 | # for this test. |
| 105 | cat >try.c <<'EOM' |
| 106 | /* Test for whether ELF binaries are produced */ |
| 107 | #include <fcntl.h> |
| 108 | #include <stdlib.h> |
| 109 | main() { |
| 110 | char buffer[4]; |
| 111 | int i=open("a.out",O_RDONLY); |
| 112 | if(i==-1) |
| 113 | exit(1); /* fail */ |
| 114 | if(read(i,&buffer[0],4)<4) |
| 115 | exit(1); /* fail */ |
| 116 | if(buffer[0] != 127 || buffer[1] != 'E' || |
| 117 | buffer[2] != 'L' || buffer[3] != 'F') |
| 118 | exit(1); /* fail */ |
| 119 | exit(0); /* succeed (yes, it's ELF) */ |
| 120 | } |
| 121 | EOM |
| 122 | if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then |
| 123 | cat <<'EOM' >&4 |
| 124 | |
| 125 | You appear to have ELF support. I'll try to use it for dynamic loading. |
| 126 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
| 127 | EOM |
| 128 | |
| 129 | #For RedHat Linux 3.0.3, you may need to fetch |
| 130 | # ftp://ftp.redhat.com/pub/redhat-3.0.3/i386/updates/RPMS/ld.so-1.7.14-3.i386.rpm |
| 131 | # |
| 132 | |
| 133 | else |
| 134 | cat <<'EOM' >&4 |
| 135 | |
| 136 | You don't have an ELF gcc. I will use dld if possible. If you are |
| 137 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
| 138 | should probably upgrade. If you are forced to use 3.2.4, you should |
| 139 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
| 140 | that shared libraries will be disallowed. |
| 141 | |
| 142 | EOM |
| 143 | lddlflags="-r $lddlflags" |
| 144 | # These empty values are so that Configure doesn't put in the |
| 145 | # Linux ELF values. |
| 146 | ccdlflags=' ' |
| 147 | cccdlflags=' ' |
| 148 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
| 149 | so='sa' |
| 150 | dlext='o' |
| 151 | nm_so_opt=' ' |
| 152 | ## If you are using DLD 3.2.4 which does not support shared libs, |
| 153 | ## uncomment the next two lines: |
| 154 | #ldflags="-static" |
| 155 | #so='none' |
| 156 | |
| 157 | # In addition, on some systems there is a problem with perl and NDBM |
| 158 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
| 159 | # in the tests as AnyDBM just freezing. Apparently, this only |
| 160 | # happens on a.out systems, so we disable NDBM for all a.out linux |
| 161 | # systems. If someone can suggest a more robust test |
| 162 | # that would be appreciated. |
| 163 | # |
| 164 | # More info: |
| 165 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
| 166 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
| 167 | # |
| 168 | # I tried compiling with DBM support and sure enough things locked up |
| 169 | # just as advertised. Checking into it, I found that the lockup was |
| 170 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
| 171 | # to and the jump into. |
| 172 | # |
| 173 | # To make a long story short, making sure that the *.a and *.sa pairs of |
| 174 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
| 175 | # were perfectly in sync took care of it. |
| 176 | # |
| 177 | # This will generate a harmless Whoa There! message |
| 178 | case "$d_dbm_open" in |
| 179 | '') cat <<'EOM' >&4 |
| 180 | |
| 181 | Disabling ndbm. This will generate a Whoa There message in Configure. |
| 182 | Read hints/linux.sh for further information. |
| 183 | EOM |
| 184 | # You can override this with Configure -Dd_dbm_open |
| 185 | d_dbm_open=undef |
| 186 | ;; |
| 187 | esac |
| 188 | fi |
| 189 | |
| 190 | rm -f try.c a.out |
| 191 | |
| 192 | if /bin/bash -c exit; then |
| 193 | echo '' |
| 194 | echo 'You appear to have a working bash. Good.' |
| 195 | else |
| 196 | cat << 'EOM' >&4 |
| 197 | |
| 198 | *********************** Warning! ********************* |
| 199 | It would appear you have a defective bash shell installed. This is likely to |
| 200 | give you a failure of op/exec test #5 during the test phase of the build, |
| 201 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
| 202 | ****************************************************** |
| 203 | EOM |
| 204 | |
| 205 | fi |
| 206 | |
| 207 | # On SPARClinux, |
| 208 | # The following csh consistently coredumped in the test directory |
| 209 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
| 210 | |
| 211 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
| 212 | #Version : 5.2.6 Vendor: Red Hat Software |
| 213 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
| 214 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
| 215 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
| 216 | #Size : 184417 |
| 217 | #Description : BSD c-shell |
| 218 | |
| 219 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
| 220 | # where available. |
| 221 | |
| 222 | if [ ! "`csh -c 'echo $version' 2>/dev/null`" ] |
| 223 | then |
| 224 | echo 'Real csh found (might break); looking for tcsh ...' |
| 225 | # Use ./UU/loc to find tcsh. (We no longer run in the hints/ directory) |
| 226 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
| 227 | echo "Found tcsh. I'll use it for globbing." |
| 228 | # We can't change Configure's setting of $csh, due to the way |
| 229 | # Configure handles $d_portable and commands found in $loclist. |
| 230 | # We can set the value for CSH in config.h by setting full_csh. |
| 231 | full_csh=$xxx |
| 232 | else |
| 233 | echo "Couldn't find tcsh. BEWARE: GLOBBING MIGHT BE BROKEN." |
| 234 | fi |
| 235 | else |
| 236 | echo 'Your csh is really tcsh. Good.' |
| 237 | fi |
| 238 | |
| 239 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
| 240 | # Message-Id: <33EF1634.B36B6500@pobox.com> |
| 241 | # |
| 242 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
| 243 | # special flags passed in order for dynamic loading to work. |
| 244 | # instead of the recommended: |
| 245 | # |
| 246 | # ccdlflags='-rdynamic' |
| 247 | # |
| 248 | # it should be: |
| 249 | # ccdlflags='-Wl,-E' |
| 250 | # |
| 251 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) |
| 252 | # has problems with dynamic loading, uncomment the |
| 253 | # following three lines, make distclean, and re-Configure: |
| 254 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in |
| 255 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; |
| 256 | #esac |
| 257 | |
| 258 | case "`uname -r`" in |
| 259 | sparc-linux) |
| 260 | case "$cccdlflags" in |
| 261 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; |
| 262 | *) cccdlflags="$cccdlflags -fPIC" ;; |
| 263 | esac |
| 264 | ;; |
| 265 | esac |
| 266 | |
| 267 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
| 268 | # after it has prompted the user for whether to use threads. |
| 269 | cat > UU/usethreads.cbu <<'EOCBU' |
| 270 | case "$usethreads" in |
| 271 | $define|true|[yY]*) |
| 272 | ccflags="-D_REENTRANT $ccflags" |
| 273 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
| 274 | shift |
| 275 | libswanted="$*" |
| 276 | ;; |
| 277 | esac |
| 278 | EOCBU |
| 279 | |
| 280 | cat > UU/uselargefiles.cbu <<'EOCBU' |
| 281 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
| 282 | # after it has prompted the user for whether to use large files. |
| 283 | case "$uselargefiles" in |
| 284 | ''|$define|true|[yY]*) |
| 285 | # Keep this in the left margin. |
| 286 | ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
| 287 | |
| 288 | ccflags="$ccflags $ccflags_uselargefiles" |
| 289 | ;; |
| 290 | esac |
| 291 | EOCBU |