X-Git-Url: http://git.draconx.ca/gitweb/dxcommon.git/blobdiff_plain/d4b010a6dc3c999c9d3488a453ab2be1af18b6c9..e599119f0492b01f1f21a8cce8d695c314dab3b1:/m4/base.m4

diff --git a/m4/base.m4 b/m4/base.m4
index 86d6b84..fd9b811 100644
--- a/m4/base.m4
+++ b/m4/base.m4
@@ -1,4 +1,4 @@
-dnl Copyright © 2012, 2014 Nick Bowler
+dnl Copyright © 2012, 2014, 2021 Nick Bowler
 dnl
 dnl Base directory handling for dxcommon.
 dnl
@@ -60,9 +60,19 @@ AC_DEFUN_ONCE([DX_INIT], [m4_do(
   [_DX_SET_BASEDIR([$1])],
   [AC_SUBST([DX_BASEDIR])],
   [AC_CONFIG_COMMANDS_PRE(
-    [[DX_BASEDIR]="AS_ESCAPE(m4_dquote(m4_defn([_DX_BASEDIR])))"])])])
+    [[DX_BASEDIR]="\${top_srcdir}/AS_ESCAPE(
+      m4_dquote(m4_defn([_DX_BASEDIR])))"])])])
 
 dnl DX_BASEDIR
 dnl
 dnl This macro expands to the dxcommon base directory, as a quoted string.
 AC_DEFUN([DX_BASEDIR], [m4_ignore(DX_INIT())m4_defn([_DX_BASEDIR])])
+
+dnl DX_RUN_LOG(command)
+dnl
+dnl Run a command, logging all of the command, its output, and overall
+dnl exit status to config.log.  The expansion of this macro is a single
+dnl complex shell command suitable for use in shell conditionals.
+AC_DEFUN([DX_RUN_LOG], [{ (set -x; $1;) >&AS_MESSAGE_LOG_FD 2>&1
+  dx_status=$?; AS_ECHO(["\$? = $dx_status"]) >&AS_MESSAGE_LOG_FD 2>&1
+  test $dx_status = 0; }])