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audacity/m4/audacity_checklib_libexpat.m4

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dnl add license?
dnl
dnl Please increment the serial number below whenever you alter this macro
dnl for the benefit of automatic macro update systems
# audacity_checklib_libexpat.m4 serial 2
AC_DEFUN([AUDACITY_CHECKLIB_EXPAT], [
AC_ARG_WITH(expat,
[AS_HELP_STRING([--with-expat],
[which expat to use for XML file support: [system,local]])],
EXPAT_ARGUMENT=$withval,
EXPAT_ARGUMENT="unspecified")
dnl see if libexpat is installed on the system
AC_CHECK_LIB(expat, XML_ParserCreate,
libexpat_found="yes",
libexpat_found="no")
expat_h_found="no"
AC_CHECK_HEADER(expat.h,
expat_h_found="yes",
expat_h_found="no")
if test "x$libexpat_found" = "xyes" && test "x$expat_h_found" = "xyes" ; then
EXPAT_SYSTEM_AVAILABLE="yes"
EXPAT_SYSTEM_LIBS="-lexpat"
EXPAT_SYSTEM_CPPSYMBOLS="USE_SYSTEM_EXPAT"
AC_MSG_NOTICE([Expat libraries are available as system libraries])
else
EXPAT_SYSTEM_AVAILABLE="no"
AC_MSG_NOTICE([Expat libraries are NOT available as system libraries])
fi
dnl see if expat is available in the local tree
AC_CHECK_FILE(${srcdir}/lib-src/expat/lib/expat.h,
xmlparse_h_found="yes",
xmlparse_h_found="no")
if test "x$xmlparse_h_found" = "xyes" ; then
EXPAT_LOCAL_AVAILABLE="yes"
EXPAT_LOCAL_LIBS="libexpat.a"
EXPAT_LOCAL_CXXFLAGS='-I$(top_srcdir)/lib-src/expat'
EXPAT_LOCAL_CPPSYMBOLS="USE_LOCAL_EXPAT"
AC_MSG_NOTICE([Expat libraries are available in the local tree])
else
EXPAT_LOCAL_AVAILABLE="no"
AC_MSG_NOTICE([Expat libraries are NOT available in the local tree])
fi
])
AC_DEFUN([AUDACITY_CONFIG_SUBDIRS_EXPAT], [
if test "$EXPAT_USE_LOCAL" = yes; then
AC_CONFIG_SUBDIRS([lib-src/expat])
fi
])