From d3a95f2752f08185ffce536dc5cf7dc67fdea225 Mon Sep 17 00:00:00 2001
From: David Edelsohn <edelsohn@gnu.org>
Date: Fri, 13 Oct 2006 16:41:59 +0000
Subject: [PATCH] install.texi (*-ibm-aix*): Add comment about 32-bit GMP and
MPFR for gfortran.
* doc/install.texi (*-ibm-aix*): Add comment about 32-bit GMP
and MPFR for gfortran.
From-SVN: r117700
---
gcc/ChangeLog | 5 +++++
gcc/doc/install.texi | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ff9a8412e5a5..bbea7ce9a786 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-10-13 David Edelsohn <edelsohn@gnu.org>
+
+ * doc/install.texi (*-ibm-aix*): Add comment about 32-bit GMP
+ and MPFR for gfortran.
+
2006-10-13 Carlos O'Donell <carlos@codesourcery.com>
* config/elfos.h (MAX_OFILE_ALIGNMENT): Default to largest
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index a087a35b40d6..e76de1f421c1 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -3228,6 +3228,11 @@ and then proceed as described in @uref{build.html,,the build
instructions}, where we strongly recommend specifying an absolute path
to invoke @var{srcdir}/configure.
+Because GCC on AIX is built as a 32-bit executable by default,
+(although it can generate 64-bit programs) the GMP and MPFR libraries
+required by gfortran must be 32-bit libraries. Building GMP and MPFR
+as static archive libraries works better than shared libraries.
+
Errors involving @code{alloca} when building GCC generally are due
to an incorrect definition of @code{CC} in the Makefile or mixing files
compiled with the native C compiler and GCC@. During the stage1 phase of
--
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