From 4462e932590b3cf15ceff8d6ddd045aacaa6a12d Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Wed, 22 Jan 1997 21:00:32 +0000 Subject: Various notes added: - -mt option for Solaris threads with Solaris compiler - make clean when switching static link status for Linux - DEC alpha --with-dec-threads option - SunOS removed unnecessary warnings, mention -Xa for SunPro - Setup.local file - warn to try make clean after changing readline option - mention --with-threads as alias for --with-thread --- README | 48 ++++++++++++++++++++++++++++++++---------------- 1 file changed, 32 insertions(+), 16 deletions(-) diff --git a/README b/README index 61664d5..73ce469 100644 --- a/README +++ b/README @@ -146,13 +146,24 @@ Platform specific notes on these platforms without the special directions mentioned here, let me know so I can remove them!) +Solaris: When using Sun's C compiler with threads, at least on Solaris + 2.5.1, you need to add the "-mt" compiler option (the simplest + way is probably to specify the compiler with this option as + the "CC" environment variable when running the configure + script). + Linux: On Linux version 1.x, once you've built Python, use it to run the regen script in the Lib/linux1 directory. Apparently the files as distributed don't match the system headers on some Linux versions. (The "h2py" command refers to Tools/scripts/h2py.py.) The modules distributed for Linux 2.x should be okay. Shared library support now works by default - on ELF-based x86 Linux systems. + on ELF-based x86 Linux systems. (Note: when you change the + status of a module from static to shared, you must remove its + .o file or do a "make clean".) + +DEC Alpha OFS/1: When enabling threads, use --with-dec-threads, not + --with-thread. AIX: A complete overhaul of the shared library support is now in place. To enable it, uncomment the LINKCC line in the Setup @@ -188,12 +199,9 @@ SCO: 1) Everything works much better if you add -U__STDC__ to the 3) According to at least one report, the above apply only to SCO 3 -- Python builds out of the box on SCO 5. -SunOS: On SunOS 4.x, when using the native "cc" compiler, you have to - disable modules "cmath" and "operator" in Modules/Setup (see - the next section) and edit the various Makefiles to add - "-DWITHOUT_COMPLEX" to the CFLAGS variable, in order to - overcome the limitation to pre-ANSI C. (Or, of course, you - could get gcc :-). +SunOS: On SunOS 4.1.x, when using the SunPro C compiler, you may want + to use the '-Xa' option instead of '-Xc', to enable some + needed non-ANSI Sunisms. NeXT: To build fat binaries, use the --with-next-archs switch described below. @@ -226,6 +234,12 @@ system libraries, e.g. the GL library and the audio hardware. For SunOS and Solaris, enable module "sunaudiodev" to support the audio device. +In addition to the file Setup, you can also edit the file Setup.local. +(the makesetup script processes both). You may find it more +convenient to edit Setup.local and leave Setup alone. Then, when +installing a new Python version, you can copy your old Setup.local +file. + Setting the optimization/debugging options ------------------------------------------ @@ -303,7 +317,8 @@ WARNING: if you rerun the configure script with different options, you must run "make clean" before rebuilding. Exceptions to this rule: after changing --prefix or --exec-prefix, all you need to do is remove Modules/getpath.o; after changing --with-readline, just remove -Parser/myreadline.o. +Parser/myreadline.o (but if it doesn't seem to work, always try "make +clean" before giving up or complaining!). --with(out)-gcc: The configure script uses gcc (the GNU C compiler) if it finds it. If you don't want this, or if this compiler is @@ -353,14 +368,15 @@ Parser/myreadline.o. readline library are in the FAQ (file Misc/FAQ). --with-thread: On most Unix systems, you can now use multiple threads. - To enable this, pass --with-thread. If the library required - for threads lives in a peculiar place, you can use - --with-thread=DIRECTORY. In the Modules/Setup file, enable - the thread module. (Threads aren't enabled automatically - because there are run-time penalties when support for them is - compiled in even if you don't use them.) IMPORTANT: run "make - clean" after changing (either enabling or disabling) this - option! + To enable this, pass --with-thread. (--with-threads is an + alias.) If the library required for threads lives in a + peculiar place, you can use --with-thread=DIRECTORY. In the + Modules/Setup file, enable the thread module. (Threads aren't + enabled automatically because there are run-time penalties + when support for them is compiled in even if you don't use + them.) IMPORTANT: run "make clean" after changing (either + enabling or disabling) this option! Note: for DEC Alpha OSF/1, + use --with-dec-threads instead. --with-sgi-dl: On SGI IRIX 4, dynamic loading of extension modules is supported by the "dl" library by Jack Jansen, which is -- cgit v0.12