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[wxWidgets.git] / src / expat / conftools / expat.m4
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 ])