1 | # hints/sunos_4_1.sh |
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2 | # Last modified: Wed May 27 11:00:02 EDT 1998 |
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3 | # Andy Dougherty <doughera@lafcol.lafayette.edu> |
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4 | |
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5 | case "$cc" in |
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6 | *gcc*) usevfork=false |
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7 | # GNU as and GNU ld might not work. See the INSTALL file. |
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8 | ;; |
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9 | *) usevfork=true ;; |
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10 | esac |
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11 | |
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12 | # Configure will issue a WHOA warning. The problem is that |
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13 | # Configure finds getzname, not tzname. If you're in the System V |
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14 | # environment, you can set d_tzname='define' since tzname[] is |
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15 | # available in the System V environment. |
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16 | d_tzname='undef' |
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17 | |
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18 | # Configure will issue a WHOA warning. The problem is that unistd.h |
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19 | # contains incorrect prototypes for some functions in the usual |
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20 | # BSD-ish environment. In particular, it has |
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21 | # extern int getgroups(/* int gidsetsize, gid_t grouplist[] */); |
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22 | # but groupslist[] ought to be of type int, not gid_t. |
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23 | # This is only really a problem for perl if the |
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24 | # user is using gcc, and not running in the SysV environment. |
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25 | # The gcc fix-includes script exposes those incorrect prototypes. |
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26 | # There may be other examples as well. Volunteers are welcome to |
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27 | # track them all down :-). In the meantime, we'll just skip unistd.h |
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28 | # for SunOS in most of the code. |
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29 | # However, see ext/POSIX/hints/sunos_4.pl for one exception. |
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30 | i_unistd='undef' |
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31 | # See util.c for another: We need _SC_OPEN_MAX, which is in |
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32 | # <unistd.h>. |
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33 | |
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34 | # fflush(NULL) will core dump on SunOS 4.1.3. In util.c we'll |
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35 | # try explicitly fflushing all open files. Unfortunately, |
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36 | # on my SunOS 4.1.3 system, sysconf(_SC_OPEN_MAX) returns |
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37 | # 64, but only 32 of those file pointers can be accessed |
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38 | # directly by _iob[i]. The remainder are off in dynamically |
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39 | # allocated memory somewhere and I don't know to automatically |
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40 | # fflush() them. -- Andy Dougherty Wed May 26 15:25:22 EDT 1999 |
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41 | util_cflags='ccflags="$ccflags -DPERL_FFLUSH_ALL_FOPEN_MAX=32"' |
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42 | |
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43 | cat << 'EOM' >&4 |
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44 | |
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45 | You will probably see *** WHOA THERE!!! *** messages from Configure for |
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46 | d_tzname and i_unistd. Keep the recommended values. See |
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47 | hints/sunos_4_1.sh for more information. |
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48 | EOM |
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49 | |
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50 | # The correct setting of groupstype depends on which version of the C |
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51 | # library is used. If you are in the 'System V environment' |
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52 | # (i.e. you have /usr/5bin ahead of /usr/bin in your PATH), and |
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53 | # you use Sun's cc compiler, then you'll pick up /usr/5bin/cc, which |
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54 | # links against the C library in /usr/5lib. This library has |
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55 | # groupstype='gid_t'. |
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56 | # If you are in the normal BSDish environment, then you'll pick up |
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57 | # /usr/ucb/cc, which links against the C library in /usr/lib. That |
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58 | # library has groupstype='int'. |
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59 | # |
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60 | # If you are using gcc, it links against the C library in /usr/lib |
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61 | # independent of whether or not you are in the 'System V environment'. |
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62 | # If you want to use the System V libraries, then you need to |
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63 | # manually set groupstype='gid_t' and add explicit references to |
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64 | # /usr/5lib when Configure prompts you for where to look for libraries. |
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65 | # |
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66 | # Check if user is in a bsd or system 5 type environment |
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67 | if cat -b /dev/null 2>/dev/null |
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68 | then # bsd |
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69 | groupstype='int' |
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70 | else # sys5 |
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71 | case "$cc" in |
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72 | *gcc*) groupstype='int';; # gcc doesn't do anything special |
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73 | *) groupstype='gid_t';; # /usr/5bin/cc pulls in /usr/5lib/ stuff. |
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74 | esac |
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75 | fi |
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76 | |
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77 | # If you get the message "unresolved symbol '__lib_version' " while |
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78 | # linking, your system probably has the optional 'acc' compiler (and |
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79 | # libraries) installed, but you are using the bundled 'cc' compiler with |
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80 | # the unbundled libraries. The solution is either to use 'acc' and the |
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81 | # unbundled libraries (specifically /lib/libm.a), or 'cc' and the bundled |
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82 | # library. |
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83 | # |
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84 | # Thanks to William Setzer <William_Setzer@ncsu.edu> for this info. |
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