1 files changed, 88 insertions, 0 deletions
diff --git a/m4/acx_clucene.m4 b/m4/acx_clucene.m4
new file mode 100644
index 0000000..04bf2c0
--- /dev/null
+++ b/m4/acx_clucene.m4
@@ -0,0 +1,88 @@
+dnl CLucene detection m4
+AC_DEFUN([ACX_CLUCENE], [
+AC_LANG_SAVE
+AC_LANG(C++)
+
+
+# Ask user for path to clucene-core stuff:.
+AC_ARG_WITH(clucene,
+	AC_HELP_STRING([ --with-clucene=<path>],
+		[prefix of CLucene-Core installation. e.g. /usr/local or /usr]),,)
+
+AC_MSG_CHECKING([how to include clucene])
+if test "x$with_clucene" = "xno"; then
+	AC_MSG_RESULT(excluding support)
+else
+#try some default locations
+if test -z "$with_clucene" || test "x$with_clucene" = "xyes"; then
+	#use parent of this directory, and some common library paths
+	with_clucene=$(cd "../" && pwd)
+	with_clucene="$with_clucene /usr /usr/local"
+else
+	#use an absolute path
+	with_clucene=$(cd "$with_clucene" && pwd)
+fi
+clucene_set_failed=
+CLUCENE_CXXFLAGS=
+CLUCENE_LIBS=
+for flag in $with_clucene; do
+	if test -z "$clucene_set_failed"; then
+		if test -e "$flag/include/CLucene.h"; then
+# 64-bit checks first
+			if test -e "$flag/lib64/libclucene.la" || test -e "$flag/lib64/libclucene.so"; then
+				clucene_set_failed=$flag
+				CLUCENE_LIBS="-L$flag/lib64 -lclucene"
+				if test -e "$flag/include/CLucene/clucene-config.h"; then
+					CLUCENE_CXXFLAGS="-I$flag/include"
+				else
+					CLUCENE_CXXFLAGS="-I$flag/include -I$flag/lib64"
+				fi
+			else
+# 32-bit checks
+				if test -e "$flag/lib/libclucene.la" || test -e "$flag/lib/libclucene.so"; then
+					clucene_set_failed=$flag
+					CLUCENE_LIBS="-L$flag/lib -lclucene"
+					if test -e "$flag/include/CLucene/clucene-config.h"; then
+						CLUCENE_CXXFLAGS="-I$flag/include"
+					else
+						CLUCENE_CXXFLAGS="-I$flag/include -I$flag/lib"
+					fi
+				fi
+			fi
+		fi
+	fi
+
+	if test -z "$clucene_set_failed"; then
+		if test -e "$flag/src/CLucene/StdHeader.h"; then
+			if test -e "$flag/src/libclucene.la"; then
+				CLUCENE_LIBS="-L$flag/src/ -lclucene"
+				CLUCENE_CXXFLAGS="-I$flag/src/"
+				clucene_set_failed=$flag/src/
+			fi
+		fi
+	fi
+done
+
+if test -z "$clucene_set_failed"; then
+	clucene_set_failed="true"
+        with_clucene="no"
+	AC_MSG_RESULT(excluding support)
+else
+	AC_MSG_RESULT($clucene_set_failed)
+fi
+
+if test "$clucene_set_failed" = "true"; then
+	AC_MSG_WARN([Could not detect clucene location.  To enable clucene, you must
+		call configure with the --with-clucene option specifying the location.
+	    This tells configure where to find the CLucene Core library and headers.
+	    e.g. --with-clucene=/usr/local or --with-clucene=/usr])
+fi
+AC_SUBST(CLUCENE_LIBS)
+AC_SUBST(CLUCENE_CXXFLAGS)
+fi
+
+
+
+AC_LANG_RESTORE
+])dnl ACX_CLUCENE
+