1 dnl Check if --with-expat[=PREFIX] is specified and

     2 dnl Expat >= 1.95.0 is installed in the system.

     3 dnl If yes, substitute EXPAT_CFLAGS, EXPAT_LIBS with regard to

     4 dnl the specified PREFIX and set with_expat to PREFIX, or 'yes' if PREFIX

     5 dnl has not been specified. Also HAVE_LIBEXPAT, HAVE_EXPAT_H are defined.

     6 dnl If --with-expat has not been specified, set with_expat to 'no'.

     7 dnl In addition, an Automake conditional EXPAT_INSTALLED is set accordingly.

     8 dnl This is necessary to adapt a whole lot of packages that have expat

     9 dnl bundled as a static library.

    10 AC_DEFUN(AM_WITH_EXPAT,

    11 [ AC_ARG_WITH(expat,

    12 	      [  --with-expat=PREFIX     Use system Expat library],

    13 	      , with_expat=no)

    14 

    15   AM_CONDITIONAL(EXPAT_INSTALLED, test $with_expat != no)

    16 

    17   EXPAT_CFLAGS=

    18   EXPAT_LIBS=

    19   if test $with_expat != no; then

    20 	if test $with_expat != yes; then

    21 		EXPAT_CFLAGS="-I$with_expat/include"

    22 		EXPAT_LIBS="-L$with_expat/lib"

    23 	fi

    24 	AC_CHECK_LIB(expat, XML_ParserCreate,

    25 		     [ EXPAT_LIBS="$EXPAT_LIBS -lexpat"

    26 		       expat_found=yes ],

    27 		     [ expat_found=no ],

    28 		     "$EXPAT_LIBS")

    29 	if test $expat_found = no; then

    30 		AC_MSG_ERROR([Could not find the Expat library])

    31 	fi

    32 	expat_save_CFLAGS="$CFLAGS"

    33 	CFLAGS="$CFLAGS $EXPAT_CFLAGS"

    34 	AC_CHECK_HEADERS(expat.h, , expat_found=no)

    35 	if test $expat_found = no; then

    36 		AC_MSG_ERROR([Could not find expat.h])

    37 	fi

    38 	CFLAGS="$expat_save_CFLAGS"

    39   fi

    40 

    41   AC_SUBST(EXPAT_CFLAGS)

    42   AC_SUBST(EXPAT_LIBS)

    43 ])