apache2/build/find_xml.m4

   1 dnl Check for LIBXML2 Libraries
   2 dnl CHECK_LIBXML2(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
   3 dnl Sets:
   4 dnl  LIBXML2_CFLAGS
   5 dnl  LIBXML2_LIBS
   6
   7 LIBXML2_CONFIG=""
   8 LIBXML2_CFLAGS=""
   9 LIBXML2_LIBS=""
  10
  11 AC_DEFUN([CHECK_LIBXML2],
  12 [dnl
  13
  14 AC_ARG_WITH(
  15     libxml,
  16     [AC_HELP_STRING([--with-libxml=PATH],[Path to libxml2 prefix or config script])],
  17     [test_paths="${with_libxml}"],
  18     [test_paths="/usr/local/libxml2 /usr/local/xml2 /usr/local/xml /usr/local /opt/libxml2 /opt/libxml /opt/xml2 /opt/xml /opt /usr"])
  19
  20 AC_MSG_CHECKING([for libxml2 config script])
  21
  22 for x in ${test_paths}; do
  23     dnl # Determine if the script was specified and use it directly
  24     if test ! -d "$x" -a -e "$x"; then
  25         LIBXML2_CONFIG=$x
  26         libxml2_path="no"
  27         break
  28     fi
  29
  30     dnl # Try known config script names/locations
  31     for LIBXML2_CONFIG in xml2-config xml-2-config xml-config; do
  32         if test -e "${x}/bin/${LIBXML2_CONFIG}"; then
  33             libxml2_path="${x}/bin"
  34             break
  35         elif test -e "${x}/${LIBXML2_CONFIG}"; then
  36             libxml2_path="${x}"
  37             break
  38         else
  39             libxml2_path=""
  40         fi
  41     done
  42     if test -n "$libxml2_path"; then
  43         break
  44     fi
  45 done
  46     CFLAGS=$save_CFLAGS
  47     LDFLAGS=$save_LDFLAGS
  48
  49 if test -n "${libxml2_path}"; then
  50     if test "${libxml2_path}" != "no"; then
  51         LIBXML2_CONFIG="${libxml2_path}/${LIBXML2_CONFIG}"
  52     fi
  53     AC_MSG_RESULT([${LIBXML2_CONFIG}])
  54     LIBXML2_CFLAGS="`${LIBXML2_CONFIG} --cflags`"
  55     if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(xml CFLAGS: $LIBXML2_CFLAGS); fi
  56     LIBXML2_LIBS="`${LIBXML2_CONFIG} --libs`"
  57     if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(xml LIBS: $LIBXML2_LIBS); fi
  58     CFLAGS=$save_CFLAGS
  59     LDFLAGS=$save_LDFLAGS
  60 else
  61     AC_MSG_RESULT([no])
  62 fi
  63
  64 AC_SUBST(LIBXML2_LIBS)
  65 AC_SUBST(LIBXML2_CFLAGS)
  66
  67 if test -z "${LIBXML2_LIBS}"; then
  68     AC_MSG_NOTICE([*** xml library not found.])
  69     ifelse([$2], , AC_MSG_ERROR([libxml2 is required]), $2)
  70 else
  71     AC_MSG_NOTICE([using '${LIBXML2_LIBS}' for libxml2])
  72     ifelse([$1], , , $1)
  73 fi
  74 ])