From: Simon Marchi <simon.marchi@efficios.com>
To: gdb-patches@sourceware.org
Cc: Simon Marchi <simon.marchi@efficios.com>
Subject: [PATCH 12/16] gdb: don't check for long long support in the compiler
Date: Tue, 13 Oct 2026 11:35:58 -0400 [thread overview]
Message-ID: <20261013153657.1610298-13-simon.marchi@efficios.com> (raw)
In-Reply-To: <20261013153657.1610298-1-simon.marchi@efficios.com>
C++11 guarantees that long long is available, so the configure check
can't fail. Remove it from configure.ac.
Regenerate configure.
Change-Id: I81a7b6d43c06df62f5a9fc4b50d0100f2697818c
---
gdb/configure | 32 --------------------------------
gdb/configure.ac | 13 -------------
2 files changed, 45 deletions(-)
diff --git a/gdb/configure b/gdb/configure
index 292065371510..19ecb5d73187 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -30401,38 +30401,6 @@ _ACEOF
fi
-# Check if the compiler supports the `long long' type.
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for long long support in compiler" >&5
-$as_echo_n "checking for long long support in compiler... " >&6; }
-if ${gdb_cv_c_long_long+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-extern long long foo;
-int
-main ()
-{
-switch (foo & 2) { case 0: return 1; }
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
- gdb_cv_c_long_long=yes
-else
- gdb_cv_c_long_long=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_c_long_long" >&5
-$as_echo "$gdb_cv_c_long_long" >&6; }
-if test "$gdb_cv_c_long_long" != yes; then
- # libdecnumber requires long long.
- as_fn_error $? "Compiler must support long long for GDB." "$LINENO" 5
-fi
-
# Check if the compiler and runtime support printing decfloats.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for decfloat support in printf" >&5
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 192b1cbcbc31..fc21623961d0 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1682,19 +1682,6 @@ AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
[#include <sys/ptrace.h>])
-# Check if the compiler supports the `long long' type.
-
-AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
- [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-[[extern long long foo;]],
-[[switch (foo & 2) { case 0: return 1; }]])],
- gdb_cv_c_long_long=yes,
- gdb_cv_c_long_long=no)])
-if test "$gdb_cv_c_long_long" != yes; then
- # libdecnumber requires long long.
- AC_MSG_ERROR([Compiler must support long long for GDB.])
-fi
-
# Check if the compiler and runtime support printing decfloats.
AC_CACHE_CHECK([for decfloat support in printf],
--
2.56.0
next prev parent reply other threads:[~2026-10-13 15:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-13 15:35 [PATCH 00/16] Cleanup obsolete configure checks Simon Marchi
2026-10-13 15:35 ` [PATCH 01/16] gdb: don't check for sys/debugreg.h Simon Marchi
2026-10-13 15:35 ` [PATCH 02/16] gdb: don't check for sigsetmask and ttrace Simon Marchi
2026-10-13 15:35 ` [PATCH 03/16] gdbsupport: don't check for strstr declaration Simon Marchi
2026-10-13 15:35 ` [PATCH 04/16] gdbserver, gdbsupport: remove unneeded sys/procfs.h type checks Simon Marchi
2026-10-13 15:35 ` [PATCH 05/16] gdbserver: don't define HAVE_SYNC_BUILTINS Simon Marchi
2026-10-13 15:35 ` [PATCH 06/16] gdb: don't check for long double support Simon Marchi
2026-10-13 15:35 ` [PATCH 07/16] gdbserver: remove leftover Windows CE check in configure.ac Simon Marchi
2026-10-13 15:35 ` [PATCH 08/16] gdbsupport: don't check for memory.h Simon Marchi
2026-10-13 15:35 ` [PATCH 09/16] gdbserver: don't check for string.h Simon Marchi
2026-10-13 15:35 ` [PATCH 10/16] gdb, gdbserver: remove configure checks already done by GDB_AC_COMMON Simon Marchi
2026-10-13 15:35 ` [PATCH 11/16] gdb: remove redundant dlopen library search Simon Marchi
2026-10-13 15:35 ` Simon Marchi [this message]
2026-10-13 15:35 ` [PATCH 13/16] gdb: remove AC_C_CONST and AC_C_INLINE Simon Marchi
2026-10-13 15:36 ` [PATCH 14/16] gdbserver: remove fallback declarations of perror, vasprintf and vsnprintf Simon Marchi
2026-10-13 15:36 ` [PATCH 15/16] gdb: remove redundant snprintf declaration check Simon Marchi
2026-10-13 15:36 ` [PATCH 16/16] gdbserver, gdbsupport: don't check for signal.h, fcntl.h and locale.h Simon Marchi
2026-10-14 12:08 ` [PATCH 00/16] Cleanup obsolete configure checks Tom Tromey
2026-10-14 12:53 ` Simon Marchi
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