From 779ffc066edd5b046549be196fca5abf8b4d244d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20v=2E=20L=C3=B6wis?= Date: Mon, 2 Dec 2002 22:17:01 +0000 Subject: Add compile-time errors for unsupported systems. --- Python/thread_pthread.h | 5 +++++ README | 28 +++++++++++++++++++++++++--- configure | 23 ++++++++++++++++++++++- configure.in | 21 +++++++++++++++++++++ 4 files changed, 73 insertions(+), 4 deletions(-) diff --git a/Python/thread_pthread.h b/Python/thread_pthread.h index c9f6957..6f6fde4 100644 --- a/Python/thread_pthread.h +++ b/Python/thread_pthread.h @@ -31,11 +31,13 @@ #if defined(__ultrix) && defined(__mips) && defined(_DECTHREADS_) /* _DECTHREADS_ is defined in cma.h which is included by pthread.h */ # define PY_PTHREAD_D4 +# error Systems with PY_PTHREAD_D4 are unsupported. See README. #elif defined(__osf__) && defined (__alpha) /* _DECTHREADS_ is defined in cma.h which is included by pthread.h */ # if !defined(_PTHREAD_ENV_ALPHA) || defined(_PTHREAD_USE_D4) || defined(PTHREAD_USE_D4) # define PY_PTHREAD_D4 +# error Systems with PY_PTHREAD_D4 are unsupported. See README. # else # define PY_PTHREAD_STD # endif @@ -50,13 +52,16 @@ # define PY_PTHREAD_STD # else # define PY_PTHREAD_D7 +# error Systems with PY_PTHREAD_D7 are unsupported. See README. # endif #elif defined(__DGUX) # define PY_PTHREAD_D6 +# error Systems with PY_PTHREAD_D6 are unsupported. See README. #elif defined(__hpux) && defined(_DECTHREADS_) # define PY_PTHREAD_D4 +# error Systems with PY_PTHREAD_D4 are unsupported. See README. #else /* Default case */ # define PY_PTHREAD_STD diff --git a/README b/README index fbea07e..abea8db 100644 --- a/README +++ b/README @@ -224,6 +224,28 @@ old K&R-C-only compilers is no longer possible. ANSI C compilers are available for all modern systems, either in the form of updated compilers from the vendor, or one of the free compilers (gcc). +Unsupported systems +------------------- + +A number of features are not supported in Python 2.3 anymore. Some +support code is still present, but will be removed in Python 2.4. +If you still need to use current Python versions on these systems, +please send a message to python-dev@python.org indicating that you +volunteer to support this system. + +More specifically, the following systems are not supported any +longer: +- SunOS 4 +- DYNIX +- dgux +- Minix +- Irix 4 and --with-sgi-dl +- Linux 1 +- Systems defining __d6_pthread_create (configure.in) +- Systems defining PY_PTHREAD_D4, PY_PTHREAD_D6, + or PY_PTHREAD_D7 in thread_pthread.h +- Systems using --with-dl-dld + Platform specific notes ----------------------- @@ -351,6 +373,7 @@ UnixWare: There are known bugs in the math library of the system, as well as SunOS 4.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. + THIS SYSTEM IS NO LONGER SUPPORTED. NeXT: Not supported anymore. Start with the MacOSX/Darwin code if you want to revive it. @@ -886,7 +909,7 @@ Modules/getpath.o. library) by passing --with-sgi-dl=DIRECTORY where DIRECTORY is the absolute pathname of the dl library. (Don't bother on IRIX 5, it already has dynamic linking using SunOS style - shared libraries.) Support for this feature is deprecated. + shared libraries.) THIS OPTION IS UNSUPPORTED. --with-dl-dld: Dynamic loading of modules is rumored to be supported on some other systems: VAX (Ultrix), Sun3 (SunOS 3.4), Sequent @@ -902,8 +925,7 @@ Modules/getpath.o. the absolute pathname of the dl emulation library and DLD_DIRECTORY is the absolute pathname of the GNU dld library. (Don't bother on SunOS 4 or 5, they already have dynamic - linking using shared libraries.) Support for this feature is - deprecated. + linking using shared libraries.) THIS OPTION IS UNSUPPORTED. --with-libm, --with-libc: It is possible to specify alternative versions for the Math library (default -lm) and the C library diff --git a/configure b/configure index 2a8fa9a..099f867 100755 --- a/configure +++ b/configure @@ -1,5 +1,5 @@ #! /bin/sh -# From configure.in Revision: 1.371 . +# From configure.in Revision: 1.372 . # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.53 for python 2.3. # @@ -2999,6 +2999,20 @@ _ACEOF fi +# Check for unsupported systems +case $ac_sys_system/$ac_sys_release in +SunOS/4*|DYNIX/*|dgux*/*|IRIX/4*|Linux*/1*) + echo This system \($ac_sys_system/$ac_sys_release\) is no longer supported. + echo See README for details. + exit 1;; +esac + +if test "$MINIX" = yes; then + echo This system \(MINIX\) is no longer supported. + echo Read README for details. + exit 1 +fi + echo "$as_me:$LINENO: checking for --with-suffix" >&5 echo $ECHO_N "checking for --with-suffix... $ECHO_C" >&6 @@ -10866,6 +10880,9 @@ if test $ac_cv_lib_thread___d6_pthread_create = yes; then #define WITH_THREAD 1 _ACEOF + echo Systems with __d6_pthread_create are not supported anymore. + echo See README + exit 1 posix_threads=yes LIBS="$LIBS -lthread" THREADOBJ="Python/thread.o" @@ -11733,6 +11750,8 @@ if test "${with_sgi_dl+set}" = set; then echo "$as_me:$LINENO: result: $withval" >&5 echo "${ECHO_T}$withval" >&6 +echo --with-sgi-dl is unsupported; see README +exit 1 cat >>confdefs.h <<\_ACEOF #define WITH_SGI_DL 1 @@ -11762,6 +11781,8 @@ if test "${with_dl_dld+set}" = set; then echo "$as_me:$LINENO: result: $withval" >&5 echo "${ECHO_T}$withval" >&6 +echo --with-dl-dld is unsupported; see README +exit 1 cat >>confdefs.h <<\_ACEOF #define WITH_DL_DLD 1 diff --git a/configure.in b/configure.in index 7c86412..62f2aae 100644 --- a/configure.in +++ b/configure.in @@ -261,6 +261,20 @@ AC_PROG_CC AC_AIX AC_MINIX +# Check for unsupported systems +case $ac_sys_system/$ac_sys_release in +SunOS/4*|DYNIX/*|dgux*/*|IRIX/4*|Linux*/1*) + echo This system \($ac_sys_system/$ac_sys_release\) is no longer supported. + echo See README for details. + exit 1;; +esac + +if test "$MINIX" = yes; then + echo This system \(MINIX\) is no longer supported. + echo Read README for details. + exit 1 +fi + AC_EXEEXT AC_MSG_CHECKING(for --with-suffix) AC_ARG_WITH(suffix, @@ -1338,6 +1352,9 @@ pthread_create (NULL, NULL, start_routine, NULL)], [ LIBS="$LIBS -lc_r" THREADOBJ="Python/thread.o"], [ AC_CHECK_LIB(thread, __d6_pthread_create, [AC_DEFINE(WITH_THREAD) + echo Systems with __d6_pthread_create are not supported anymore. + echo See README + exit 1 posix_threads=yes LIBS="$LIBS -lthread" THREADOBJ="Python/thread.o"], [ @@ -1650,6 +1667,8 @@ AC_ARG_WITH(sgi-dl, AC_HELP_STRING(--with-sgi-dl=DIRECTORY, IRIX 4 dynamic linking), [ AC_MSG_RESULT($withval) +echo --with-sgi-dl is unsupported; see README +exit 1 AC_DEFINE(WITH_SGI_DL, 1, [Define if you want to use SGI (IRIX 4) dynamic linking. This requires the "dl" library by Jack Jansen, @@ -1670,6 +1689,8 @@ AC_ARG_WITH(dl-dld, AC_HELP_STRING(--with-dl-dld=DL_DIR, GNU dynamic linking), [ AC_MSG_RESULT($withval) +echo --with-dl-dld is unsupported; see README +exit 1 AC_DEFINE(WITH_DL_DLD, 1, [Define if you want to emulate SGI (IRIX 4) dynamic linking. This is rumoured to work on VAX (Ultrix), Sun3 (SunOS 3.4), -- cgit v0.12