From 5d4c6d95015015bdc10eba4d6687018d2cc172d3 Mon Sep 17 00:00:00 2001 From: Zachary Ware Date: Sat, 17 Sep 2016 01:25:24 -0500 Subject: Closes #27979: Remove bundled copy of libffi An installed copy of libffi is now required for building _ctypes on any platform but OSX and Windows. --- Modules/_ctypes/libffi/acinclude.m4 | 92 ------------------------------------- 1 file changed, 92 deletions(-) delete mode 100644 Modules/_ctypes/libffi/acinclude.m4 (limited to 'Modules/_ctypes/libffi/acinclude.m4') diff --git a/Modules/_ctypes/libffi/acinclude.m4 b/Modules/_ctypes/libffi/acinclude.m4 deleted file mode 100644 index 3e8f8ba570..0000000000 --- a/Modules/_ctypes/libffi/acinclude.m4 +++ /dev/null @@ -1,92 +0,0 @@ -# mmap(2) blacklisting. Some platforms provide the mmap library routine -# but don't support all of the features we need from it. -AC_DEFUN([AC_FUNC_MMAP_BLACKLIST], -[ -AC_CHECK_HEADER([sys/mman.h], - [libffi_header_sys_mman_h=yes], [libffi_header_sys_mman_h=no]) -AC_CHECK_FUNC([mmap], [libffi_func_mmap=yes], [libffi_func_mmap=no]) -if test "$libffi_header_sys_mman_h" != yes \ - || test "$libffi_func_mmap" != yes; then - ac_cv_func_mmap_file=no - ac_cv_func_mmap_dev_zero=no - ac_cv_func_mmap_anon=no -else - AC_CACHE_CHECK([whether read-only mmap of a plain file works], - ac_cv_func_mmap_file, - [# Add a system to this blacklist if - # mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a - # memory area containing the same data that you'd get if you applied - # read() to the same fd. The only system known to have a problem here - # is VMS, where text files have record structure. - case "$host_os" in - vms* | ultrix*) - ac_cv_func_mmap_file=no ;; - *) - ac_cv_func_mmap_file=yes;; - esac]) - AC_CACHE_CHECK([whether mmap from /dev/zero works], - ac_cv_func_mmap_dev_zero, - [# Add a system to this blacklist if it has mmap() but /dev/zero - # does not exist, or if mmapping /dev/zero does not give anonymous - # zeroed pages with both the following properties: - # 1. If you map N consecutive pages in with one call, and then - # unmap any subset of those pages, the pages that were not - # explicitly unmapped remain accessible. - # 2. If you map two adjacent blocks of memory and then unmap them - # both at once, they must both go away. - # Systems known to be in this category are Windows (all variants), - # VMS, and Darwin. - case "$host_os" in - vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00) - ac_cv_func_mmap_dev_zero=no ;; - *) - ac_cv_func_mmap_dev_zero=yes;; - esac]) - - # Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for. - AC_CACHE_CHECK([for MAP_ANON(YMOUS)], ac_cv_decl_map_anon, - [AC_TRY_COMPILE( -[#include -#include -#include - -#ifndef MAP_ANONYMOUS -#define MAP_ANONYMOUS MAP_ANON -#endif -], -[int n = MAP_ANONYMOUS;], - ac_cv_decl_map_anon=yes, - ac_cv_decl_map_anon=no)]) - - if test $ac_cv_decl_map_anon = no; then - ac_cv_func_mmap_anon=no - else - AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works], - ac_cv_func_mmap_anon, - [# Add a system to this blacklist if it has mmap() and MAP_ANON or - # MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) - # doesn't give anonymous zeroed pages with the same properties listed - # above for use of /dev/zero. - # Systems known to be in this category are Windows, VMS, and SCO Unix. - case "$host_os" in - vms* | cygwin* | pe | mingw* | sco* | udk* ) - ac_cv_func_mmap_anon=no ;; - *) - ac_cv_func_mmap_anon=yes;; - esac]) - fi -fi - -if test $ac_cv_func_mmap_file = yes; then - AC_DEFINE(HAVE_MMAP_FILE, 1, - [Define if read-only mmap of a plain file works.]) -fi -if test $ac_cv_func_mmap_dev_zero = yes; then - AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1, - [Define if mmap of /dev/zero works.]) -fi -if test $ac_cv_func_mmap_anon = yes; then - AC_DEFINE(HAVE_MMAP_ANON, 1, - [Define if mmap with MAP_ANON(YMOUS) works.]) -fi -]) -- cgit v1.2.1