X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/81e4d3b012b8c17ab17215a2f904a5742e41886d..453292887030769d9c7599690fbc5e7c62f5df39:/configure.ac

diff --git a/configure.ac b/configure.ac
index f10db95..a3468aa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,12 +1,51 @@
 AC_PREREQ(2.50)
-
-AC_INIT
+AC_INIT([onak],[0.3.0],[noodles-onak@earth.li])
+AC_CONFIG_SRCDIR(onak.c)
 AC_CONFIG_HEADER(config.h)
 
 AC_PROG_CC
 
 AC_C_BIGENDIAN
 
+AC_ARG_ENABLE(backend,AC_HELP_STRING([--enable-backend=<backend>],[Choose the backend database to use. Defaults to db4.]), [], [enable_backend="db4"])
+
+AC_MSG_CHECKING([which key database backend to use])
+AC_MSG_RESULT([$enable_backend])
+AC_CHECK_FILE([$srcdir/keydb_$enable_backend.c], ,AC_MSG_ERROR([non existent key database backend $enable_backend]))
+
+if test "x$enable_backend" = "xdb4"
+then
+	AC_CHECK_HEADER(db.h, have_db_h="yes", have_db_h="no")
+	AC_MSG_CHECKING(for libdb version in db.h)
+	printf "#include <db.h>\nDB_VERSION_MAJOR DB_VERSION_MINOR\n" >conftest.c
+	set `eval $ac_cpp conftest.c | egrep '^ *[[0-9]] *'`; v="$1"; vv="$2"
+	AC_MSG_RESULT($v.$vv)
+	if test "$v" -ne 4; then
+		AC_MSG_RESULT([   * onak requires libdb version 4])
+	fi
+	for db in "db-$v.$vv" "db$v.$vv" "db-$v" "db$v" "db"; do
+		AC_MSG_CHECKING(for db_create in lib$db)
+		oldLIBS="$LIBS"
+		LIBS="$LIBS -l$db"
+		AC_TRY_LINK([#include <db.h>], db_create(0, 0, 0),
+			have_libdb="yes", have_libdb="no")
+		AC_MSG_RESULT($have_libdb)
+		if test "$have_libdb" != "no"; then break; fi
+		LIBS="$oldLIBS"
+	done
+	if test "$have_libdb" = "no" -o "$have_db_h" = "no"; then
+		AC_MSG_ERROR(libdb not found.)
+	fi
+	AC_DEFINE(HAVE_LIBDB, 1, [libdb found])
+else if test "x$enable_backend" = "xpg"
+then
+	AC_CHECK_LIB(pq, PQsetdbLogin,,
+		AC_MSG_ERROR([cannot compile PostgreSQL backend without libpq]))
+fi
+fi
+
+AC_SUBST(DBTYPE, $enable_backend)
+
 AC_CONFIG_FILES(Makefile)
 
 AC_OUTPUT