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 ]) 44
