1 | # =========================================================================== |
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2 | # http://www.nongnu.org/autoconf-archive/ax_prog_perl_modules.html |
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3 | # =========================================================================== |
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4 | # |
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5 | # SYNOPSIS |
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6 | # |
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7 | # AX_PROG_PERL_MODULES([MODULES], [ACTION-IF-TRUE], [ACTION-IF-FALSE]) |
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8 | # |
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9 | # DESCRIPTION |
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10 | # |
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11 | # Checks to see if the given perl modules are available. If true the shell |
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12 | # commands in ACTION-IF-TRUE are executed. If not the shell commands in |
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13 | # ACTION-IF-FALSE are run. Note if $PERL is not set (for example by |
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14 | # calling AC_CHECK_PROG, or AC_PATH_PROG), AC_CHECK_PROG(PERL, perl, perl) |
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15 | # will be run. |
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16 | # |
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17 | # MODULES is a space separated list of module names. To check for a |
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18 | # minimum version of a module, append the version number to the module |
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19 | # name, separated by an equals sign. |
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20 | # |
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21 | # Example: |
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22 | # |
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23 | # AX_PROG_PERL_MODULES( Text::Wrap Net::LDAP=1.0.3, , |
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24 | # AC_MSG_WARN(Need some Perl modules) |
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25 | # |
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26 | # LICENSE |
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27 | # |
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28 | # Copyright (c) 2009 Dean Povey <povey@wedgetail.com> |
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29 | # |
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30 | # Copying and distribution of this file, with or without modification, are |
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31 | # permitted in any medium without royalty provided the copyright notice |
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32 | # and this notice are preserved. This file is offered as-is, without any |
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33 | # warranty. |
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34 | |
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35 | #serial 6 |
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36 | |
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37 | AU_ALIAS([AC_PROG_PERL_MODULES], [AX_PROG_PERL_MODULES]) |
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38 | AC_DEFUN([AX_PROG_PERL_MODULES],[dnl |
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39 | |
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40 | m4_define([ax_perl_modules]) |
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41 | m4_foreach([ax_perl_module], m4_split(m4_normalize([$1])), |
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42 | [ |
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43 | m4_append([ax_perl_modules], |
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44 | [']m4_bpatsubst(ax_perl_module,=,[ ])[' ]) |
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45 | ]) |
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46 | |
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47 | # Make sure we have perl |
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48 | if test -z "$PERL"; then |
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49 | AC_CHECK_PROG(PERL,perl,perl) |
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50 | fi |
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51 | |
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52 | if test "x$PERL" != x; then |
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53 | ax_perl_modules_failed=0 |
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54 | for ax_perl_module in ax_perl_modules; do |
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55 | AC_MSG_CHECKING(for perl module $ax_perl_module) |
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56 | |
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57 | # Would be nice to log result here, but can't rely on autoconf internals |
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58 | $PERL -e "use $ax_perl_module; exit" > /dev/null 2>&1 |
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59 | if test $? -ne 0; then |
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60 | AC_MSG_RESULT(no); |
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61 | ax_perl_modules_failed=1 |
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62 | else |
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63 | AC_MSG_RESULT(ok); |
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64 | fi |
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65 | done |
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66 | |
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67 | # Run optional shell commands |
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68 | if test "$ax_perl_modules_failed" = 0; then |
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69 | : |
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70 | $2 |
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71 | else |
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72 | : |
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73 | $3 |
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74 | fi |
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75 | else |
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76 | AC_MSG_WARN(could not find perl) |
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77 | fi])dnl |
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