1 | # =========================================================================== |
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2 | # ax_check_xml2.m4 |
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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_CHECK_XML2([action-if-found[, action-if-not-found]]) |
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8 | # |
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9 | # DESCRIPTION |
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10 | # |
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11 | # Look for xml2in a number of default spots, or in a user-selected |
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12 | # spot (via --with-xml2). Sets |
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13 | # |
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14 | # XML2_INCLUDES to the include directives required |
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15 | # XML2_LIBS to the -l directives required |
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16 | # XML2_LDFLAGS to the -L or -R flags required |
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17 | # |
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18 | # and calls ACTION-IF-FOUND or ACTION-IF-NOT-FOUND appropriately |
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19 | # |
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20 | # This macro sets XML2_INCLUDES such that source files should use the |
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21 | # libxml2/ directory in include directives: |
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22 | # ... <libxml/tree.h> |
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23 | # |
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24 | AU_ALIAS([CHECK_XML2], [AX_CHECK_XML2]) |
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25 | AC_DEFUN([AX_CHECK_XML2], [ |
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26 | found=false |
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27 | AC_ARG_WITH([xml2], |
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28 | [AS_HELP_STRING([--with-xml2=DIR], |
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29 | [root of the XML2 directory])], |
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30 | [ |
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31 | case "$withval" in |
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32 | "" | y | ye | yes | n | no) |
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33 | AC_MSG_ERROR([Invalid --with-xml2 value]) |
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34 | ;; |
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35 | *) xml2dirs="$withval" |
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36 | ;; |
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37 | esac |
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38 | ], [ |
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39 | xml2dirs="/usr/local /usr" |
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40 | ] |
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41 | ) |
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42 | |
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43 | |
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44 | # XML2 headers have to be in libxml and xml2dir subdirectories |
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45 | # CFLAGS =-g -Wall `xmlsec1-config --cflags --crypto=default` `xml2-config --cflags` |
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46 | # LDFLAGS += `xml2-config --libs` `xmlsec1-config --libs --crypto=default` |
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47 | |
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48 | if ! $found; then |
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49 | AC_PATH_PROG([XML2_CONFIG], [xml2-config]) |
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50 | if test x"$XML2_CONFIG" != x""; then |
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51 | for xml2dir in $xml2dirs; do |
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52 | AC_MSG_CHECKING([for libxml/tree.h in $xml2dir]) |
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53 | if test -f "$xml2dir/include/libxml2/libxml/tree.h"; then |
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54 | XML2_INCLUDES=`$XML2_CONFIG --cflags 2>/dev/null` |
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55 | XML2_LDFLAGS=`$XML2_CONFIG --libs 2>/dev/null` |
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56 | found=true |
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57 | AC_MSG_RESULT([yes]) |
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58 | break |
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59 | else |
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60 | AC_MSG_RESULT([no]) |
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61 | fi |
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62 | done |
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63 | else |
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64 | # cannot even find the xml2-config |
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65 | AC_MSG_ERROR([Cannot find xml2-config in your system path]) |
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66 | fi |
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67 | |
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68 | # if the file wasn't found, well, go ahead and try the link anyway -- maybe |
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69 | # it will just work! |
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70 | fi |
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71 | |
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72 | # try the preprocessor and linker with our new flags, |
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73 | # being careful not to pollute the global LIBS, LDFLAGS, and CPPFLAGS |
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74 | |
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75 | AC_MSG_CHECKING([whether compiling and linking against XML2 works]) |
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76 | echo "Trying link with XML2_LDFLAGS=$XML2_LDFLAGS;" \ |
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77 | "XML2_LIBS=$XML2_LIBS; XML2_INCLUDES=$XML2_INCLUDES" >&AS_MESSAGE_LOG_FD |
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78 | |
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79 | save_LIBS="$LIBS" |
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80 | save_LDFLAGS="$LDFLAGS" |
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81 | save_CPPFLAGS="$CPPFLAGS" |
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82 | LDFLAGS="$LDFLAGS $XML2_LDFLAGS" |
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83 | LIBS="$XML2_LIBS $LIBS" |
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84 | CPPFLAGS="$XML2_INCLUDES $CPPFLAGS" |
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85 | AC_LINK_IFELSE( |
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86 | [AC_LANG_PROGRAM([#include <libxml/tree.h>], [xmlMalloc(1)])], |
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87 | [ |
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88 | AC_MSG_RESULT([yes]) |
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89 | $1 |
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90 | ], [ |
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91 | AC_MSG_RESULT([no]) |
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92 | $2 |
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93 | ]) |
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94 | CPPFLAGS="$save_CPPFLAGS" |
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95 | LDFLAGS="$save_LDFLAGS" |
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96 | LIBS="$save_LIBS" |
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97 | |
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98 | AC_SUBST([XML2_INCLUDES]) |
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99 | AC_SUBST([XML2_LIBS]) |
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100 | AC_SUBST([XML2_LDFLAGS]) |
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101 | ]) |
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102 | |
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