| Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 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 | ]) |