[6780] _AC_OUTPUT_SUBDIRS

[Gavin D. Smith]

Revision: 6780
          http://svn.sv.gnu.org/viewvc/?view=rev&root=texinfo&revision=6780
Author:   gavin
Date:     2015-11-14 10:58:50 +0000 (Sat, 14 Nov 2015)
Log Message:
-----------
_AC_OUTPUT_SUBDIRS

Modified Paths:
--------------
    trunk/ChangeLog
    trunk/configure.ac

Modified: trunk/ChangeLog
===================================================================
--- trunk/ChangeLog     2015-11-12 10:46:13 UTC (rev 6779)
+++ trunk/ChangeLog     2015-11-14 10:58:50 UTC (rev 6780)
@@ -1,5 +1,9 @@
 2015-11-12  Gavin Smith  <address@hidden>
 
+       * configure.ac: Use _AC_OUTPUT_SUBDIRS macro inside a subshell.
+
+2015-11-12  Gavin Smith  <address@hidden>
+
        * configure.ac: Use _AC_OUTPUT_SUBDIRS macro to configure in 
        subdirectory.
 

Modified: trunk/configure.ac
===================================================================
--- trunk/configure.ac  2015-11-12 10:46:13 UTC (rev 6779)
+++ trunk/configure.ac  2015-11-14 10:58:50 UTC (rev 6780)
@@ -372,13 +372,16 @@
 # script.
 # Don't use AC_CONFIG_SUBDIRS for this because it isn't done right away,
 # and we need it for the check that follows.
-# We should have some processing of the options here: see 
-# _AC_OUTPUT_SUBDIRS internal autoconf macro in
-# /usr/share/autoconf/autoconf/status.m4.
+# We use the _AC_OUTPUT_SUBDIRS internal autoconf macro
+# (in /usr/share/autoconf/autoconf/status.m4) for this in order to
+# pass on the configure command line correctly; for example, adjusting
+# paths.  It is done in a subshell to be resilient against failure of the
+# subsidiary configure script, which happens if the C compiler is found
+# not to work.
 #
 save_subdirs=$subdirs
 subdirs=tp/Texinfo/Convert/XSParagraph
-_AC_OUTPUT_SUBDIRS
+( _AC_OUTPUT_SUBDIRS ) || enable_xs=no
 subdirs=$save_subdirs
 
 if test $enable_xs = check; then