Recommendation for g++-3.1 users.

diff --git a/ChangeLog b/ChangeLog
index 90fff94c99806ec5209d42e1fc26c6ad71a64db9..903ea6613bd4576cc28c85e9001c186ed3a2293c 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2002-05-05  Bruno Haible  <bruno@clisp.org>
 
+       * doc/cln.tex (Building the library): Give some recommendations for
+       g++ 3.0 and 3.1.
+
        Force link-time references despite optimizations done by g++ 2.95
        and newer.
        * include/cln/modules.h (CL_FORCE_LINK): New macro.

diff --git a/doc/cln.tex b/doc/cln.tex
index a3230cff399478b583f5e18b15b7764d25633d59..0a52fb3e3f1704af525164857acb06e8cfb53b5a 100644 (file)
--- a/doc/cln.tex
+++ b/doc/cln.tex
@@ -357,6 +357,9 @@ $ CC="gcc -V egcs-2.91.60" CFLAGS="-O -g" \
   CXX="g++ -V egcs-2.91.60" CXXFLAGS="-O -g" ./configure
 $ CC="gcc -V 2.95.2" CFLAGS="-O2 -fno-exceptions" \
   CXX="g++ -V 2.95.2" CFLAGS="-O2 -fno-exceptions" ./configure
+$ CC="gcc -V 3.0.4" CFLAGS="-O2 -finline-limit=1000 -fno-exceptions" \
+  CXX="g++ -V 3.0.4" CFLAGS="-O2 -finline-limit=1000 -fno-exceptions" \
+  ./configure
 @end example
 @ignore
 @comment cl_modules.h requires g++
@@ -396,7 +399,10 @@ Currently CLN works only with the GNU @code{g++} compiler, and only in
 optimizing mode. So you should specify at least @code{-O} in the CXXFLAGS,
 or no CXXFLAGS at all. (If CXXFLAGS is not set, CLN will use @code{-O}.)
 
-If you use @code{g++} gcc-2.95.x or gcc-3.0, I recommend adding
+If you use @code{g++} 3.0.x or 3.1, I recommend adding
+@samp{-finline-limit=1000} to the CXXFLAGS. This is essential for good code.
+
+If you use @code{g++} gcc-2.95.x or gcc-3.0.x , I recommend adding
 @samp{-fno-exceptions} to the CXXFLAGS. This will likely generate better code.
 
 If you use @code{g++} from gcc-2.95.x on Sparc, add either @samp{-O},
@@ -408,6 +414,9 @@ library. Also, on OSF/1 or Tru64 using gcc-2.95.x, you should specify
 @samp{--disable-shared} because of linker problems with duplicate symbols 
 in shared libraries.
 
+If you use @code{g++} from gcc-3.1, it will need 235 MB of virtual memory.
+You might need some swap space if your machine doesn't have 512 MB of RAM.
+
 By default, both a shared and a static library are built.  You can build
 CLN as a static (or shared) library only, by calling @code{configure} with
 the option @samp{--disable-shared} (or @samp{--disable-static}).  While
@@ -416,6 +425,10 @@ on all architectures.  Try disabling them if you run into linker
 problems.  Also, they are generally somewhat slower than static
 libraries so runtime-critical applications should be linked statically.
 
+If you use @code{g++} from gcc-3.1 with option @samp{-g}, you will need
+some disk space: 335 MB for building as both a shared and a static library,
+or 130 MB when building as a shared library only.
+
 
 @subsection Using the GNU MP Library
 @cindex GMP