Port xcrun configuration to GNU/Linux.

* configure.ac (xcsdkdir): Default to empty.
(XCRUN): Don't require Darwin for xcrun.  Move xcrun checking to
just before AM_INIT_AUTOMAKE, to make the dependency between it
and automake clearer.
(CC): Don't use AC_PROG_CC twice; only the first use expands to the
shell code that is wanted, which breaks 'configure' on non-Darwin
platforms.  Instead, fix CC by hand if it's not found.

1 files changed, 11 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 107c28ca074..80e988f533a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2013-12-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Port xcrun configuration to GNU/Linux.
+        * configure.ac (xcsdkdir): Default to empty.
+        (XCRUN): Don't require Darwin for xcrun.  Move xcrun checking to
+        just before AM_INIT_AUTOMAKE, to make the dependency between it
+        and automake clearer.
+        (CC): Don't use AC_PROG_CC twice; only the first use expands to the
+        shell code that is wanted, which breaks 'configure' on non-Darwin
+        platforms.  Instead, fix CC by hand if it's not found.
+
 2013-12-27  Jan Djärv  <jan.h.d@swipnet.se>
 
         * configure.ac: Detect xcrun on OSX and use it for make, gcc and