From 3f61bbb849eeb07e5683d11c3769b25f64c350fe Mon Sep 17 00:00:00 2001
From: Steven Knight <knight@baldmt.com>
Date: Fri, 18 Nov 2005 04:58:55 +0000
Subject: Fix C/C++ compiler choosing on AIX.  (Bob Halley)

---
 src/CHANGES.txt                  | 5 +++++
 src/engine/SCons/Platform/aix.py | 7 +++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/CHANGES.txt b/src/CHANGES.txt
index d75008a..d087d74 100644
--- a/src/CHANGES.txt
+++ b/src/CHANGES.txt
@@ -99,6 +99,11 @@ RELEASE 0.97 - XXX
   - Remove unneceesary (and incorrect) SCons.Util strings on some function
     calls in SCons.Util.
 
+  From Bob Halley:
+
+  - Fix C/C++ compiler selection on AIX to not always use the external $CC
+    environment variable.
+
   From August Hörandl:
 
   - Add a scanner for \include and \import files, with support for
diff --git a/src/engine/SCons/Platform/aix.py b/src/engine/SCons/Platform/aix.py
index cc11466..3f77e3b 100644
--- a/src/engine/SCons/Platform/aix.py
+++ b/src/engine/SCons/Platform/aix.py
@@ -37,13 +37,16 @@ import string
 
 import posix
 
-def get_xlc(env, xlc, xlc_r, packages):
+def get_xlc(env, xlc=None, xlc_r=None, packages=[]):
     # Use the AIX package installer tool lslpp to figure out where a
     # given xl* compiler is installed and what version it is.
     xlcPath = None
     xlcVersion = None
 
-    xlc = env.get('CC', 'xlc')
+    if xlc is None:
+        xlc = env.get('CC', 'xlc')
+    if xlc_r is None:
+        xlc_r = xlc + '_r'
     for package in packages:
         cmd = "lslpp -fc " + package + " 2>/dev/null | egrep '" + xlc + "([^-_a-zA-Z0-9].*)?$'"
         line = os.popen(cmd).readline()
-- 
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