summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorChristian Heimes <christian@python.org>2022-01-26 11:20:39 (GMT)
committerGitHub <noreply@github.com>2022-01-26 11:20:39 (GMT)
commit04772cd6f164c1219c8c74d55626ba114f01aa96 (patch)
tree8d912e407d6d34071fddb8238888803cee04b497
parent29eefcc9c688bc4097f2660de1fa846c5ea54735 (diff)
downloadcpython-04772cd6f164c1219c8c74d55626ba114f01aa96.zip
cpython-04772cd6f164c1219c8c74d55626ba114f01aa96.tar.gz
cpython-04772cd6f164c1219c8c74d55626ba114f01aa96.tar.bz2
[3.9] bpo-46513: Remove AC_C_CHAR_UNSIGNED / __CHAR_UNSIGNED__ (GH-30851) (GH-30915)
Co-authored-by: Christian Heimes <christian@python.org>
-rw-r--r--Misc/NEWS.d/next/Build/2022-01-25-12-32-37.bpo-46513.mPm9B4.rst2
-rw-r--r--Modules/audioop.c7
-rwxr-xr-xconfigure33
-rw-r--r--configure.ac1
-rw-r--r--pyconfig.h.in5
5 files changed, 2 insertions, 46 deletions
diff --git a/Misc/NEWS.d/next/Build/2022-01-25-12-32-37.bpo-46513.mPm9B4.rst b/Misc/NEWS.d/next/Build/2022-01-25-12-32-37.bpo-46513.mPm9B4.rst
new file mode 100644
index 0000000..b8986ae
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2022-01-25-12-32-37.bpo-46513.mPm9B4.rst
@@ -0,0 +1,2 @@
+:program:`configure` no longer uses ``AC_C_CHAR_UNSIGNED`` macro and
+``pyconfig.h`` no longer defines reserved symbol ``__CHAR_UNSIGNED__``.
diff --git a/Modules/audioop.c b/Modules/audioop.c
index 3aeb6f0..2a5d805 100644
--- a/Modules/audioop.c
+++ b/Modules/audioop.c
@@ -5,13 +5,6 @@
#include "Python.h"
-#if defined(__CHAR_UNSIGNED__)
-#if defined(signed)
-/* This module currently does not work on systems where only unsigned
- characters are available. Take it out of Setup. Sorry. */
-#endif
-#endif
-
static const int maxvals[] = {0, 0x7F, 0x7FFF, 0x7FFFFF, 0x7FFFFFFF};
/* -1 trick is needed on Windows to support -0x80000000 without a warning */
static const int minvals[] = {0, -0x80, -0x8000, -0x800000, -0x7FFFFFFF-1};
diff --git a/configure b/configure
index d078887..5232ce6 100755
--- a/configure
+++ b/configure
@@ -13998,39 +13998,6 @@ fi
# checks for compiler characteristics
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether char is unsigned" >&5
-$as_echo_n "checking whether char is unsigned... " >&6; }
-if ${ac_cv_c_char_unsigned+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-$ac_includes_default
-int
-main ()
-{
-static int test_array [1 - 2 * !(((char) -1) < 0)];
-test_array [0] = 0;
-return test_array [0];
-
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- ac_cv_c_char_unsigned=no
-else
- ac_cv_c_char_unsigned=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_char_unsigned" >&5
-$as_echo "$ac_cv_c_char_unsigned" >&6; }
-if test $ac_cv_c_char_unsigned = yes && test "$GCC" != yes; then
- $as_echo "#define __CHAR_UNSIGNED__ 1" >>confdefs.h
-
-fi
-
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
$as_echo_n "checking for an ANSI C-conforming const... " >&6; }
if ${ac_cv_c_const+:} false; then :
diff --git a/configure.ac b/configure.ac
index 431d661..7546218 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4309,7 +4309,6 @@ fi
# checks for compiler characteristics
-AC_C_CHAR_UNSIGNED
AC_C_CONST
works=no
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 188faee..b7bfc25 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -1632,11 +1632,6 @@
/* Define on FreeBSD to activate all library features */
#undef __BSD_VISIBLE
-/* Define to 1 if type `char' is unsigned and you are not using gcc. */
-#ifndef __CHAR_UNSIGNED__
-# undef __CHAR_UNSIGNED__
-#endif
-
/* Define to 'long' if <time.h> doesn't define. */
#undef clock_t