From 51b6c8a6e2713f2b151a522c75b2db5f0b0b663e Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@nokia.com>
Date: Tue, 13 Apr 2010 10:43:33 +0200
Subject: Implement some changes to the AIX xlC mkspec suggested by IBM.

Set -bmaxdata to 0x8000000 for normal 32-bit Qt programs, to allow
them to access more memory. Increase that limit to the maximum allowed
when linking to QtWebKit (even though we don't support WebKit with xlC,
there are patches to do that).

For 64-bit, simply add the "big TOC" flag, which enables accessing
more symbols that cannot be reached by a 16-bit addressing. Only
QtWebKit strictly needs it, but IBM suggests as a good flag for
everyone.

Reviewed-by: Thomas Zander
---
 mkspecs/aix-xlc-64/qmake.conf |  2 +-
 mkspecs/aix-xlc/qmake.conf    |  2 +-
 mkspecs/features/qt.prf       | 10 ++++++++--
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/mkspecs/aix-xlc-64/qmake.conf b/mkspecs/aix-xlc-64/qmake.conf
index a18aa9f..72eef89 100644
--- a/mkspecs/aix-xlc-64/qmake.conf
+++ b/mkspecs/aix-xlc-64/qmake.conf
@@ -48,7 +48,7 @@ QMAKE_LIBDIR_OPENGL	=
 QMAKE_LINK		= xlC
 QMAKE_LINK_THREAD	= xlC_r
 QMAKE_LINK_SHLIB	= ld
-QMAKE_LFLAGS		= -q64
+QMAKE_LFLAGS		= -q64 -bbigtoc
 QMAKE_LFLAGS_RELEASE	=
 QMAKE_LFLAGS_DEBUG	=
 QMAKE_LFLAGS_SHLIB	= -qmkshrobj
diff --git a/mkspecs/aix-xlc/qmake.conf b/mkspecs/aix-xlc/qmake.conf
index 42f6f7e..f4d77e5 100644
--- a/mkspecs/aix-xlc/qmake.conf
+++ b/mkspecs/aix-xlc/qmake.conf
@@ -48,7 +48,7 @@ QMAKE_LIBDIR_OPENGL	=
 QMAKE_LINK		= xlC
 QMAKE_LINK_THREAD	= xlC_r
 QMAKE_LINK_SHLIB	= ld
-QMAKE_LFLAGS		=
+QMAKE_LFLAGS		= -bmaxdata:0x80000000
 QMAKE_LFLAGS_RELEASE	=
 QMAKE_LFLAGS_DEBUG	=
 QMAKE_LFLAGS_SHLIB	= -qmkshrobj
diff --git a/mkspecs/features/qt.prf b/mkspecs/features/qt.prf
index cf32685..62cce62 100644
--- a/mkspecs/features/qt.prf
+++ b/mkspecs/features/qt.prf
@@ -166,8 +166,14 @@ for(QTLIB, $$list($$lower($$unique(QT)))) {
        # we bump the values for all Symbian Phonon plugins.
        symbian:isEmpty(TARGET.EPOCHEAPSIZE):TARGET.EPOCHEAPSIZE = 0x040000 0x1600000
 
-   } else:isEqual(QTLIB, webkit):qlib = QtWebKit
-   else:isEqual(QTLIB, declarative):qlib = QtDeclarative
+   } else:isEqual(QTLIB, webkit) {
+       qlib = QtWebKit
+       aix-xlc {
+           # Flags recommended by IBM when using WebKit
+	   QMAKE_LFLAGS -= -bmaxdata:0x80000000
+	   QMAKE_LFLAGS += -bmaxdata:0xD0000000/dsa
+       }
+   } else:isEqual(QTLIB, declarative):qlib = QtDeclarative
    else:isEqual(QTLIB, multimedia):qlib = QtMultimedia
    else:message("Unknown QT: $$QTLIB"):qlib =
    !isEmpty(qlib) {
-- 
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