diff options
| author | Alan Coopersmith <alan.coopersmith@oracle.com> | 2023-03-03 14:55:19 -0800 |
|---|---|---|
| committer | Alan Coopersmith <alan.coopersmith@oracle.com> | 2023-03-07 00:06:24 +0000 |
| commit | 4ece1c842a08c11c1f84b95355801d41cd8435b1 (patch) | |
| tree | d6f8fb17a745b9635a837c78046ac325b0505413 /configure.ac | |
| parent | 392eb1cd5f2bdb186f0ff7f51abc4dd05ec13709 (diff) | |
Add XtReallocArray() for overflow checking of multiplied args
Uses reallocarray() if available, otherwise checks for overflow itself,
if overflow is possible (i.e. in ILP32 & ILP64 environments, but not LP64
with 32-bit ints).
Includes unit tests and XtMallocArray() helper macro.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index e0dbaa4..1da5532 100644 --- a/configure.ac +++ b/configure.ac @@ -22,13 +22,18 @@ # # Initialize Autoconf -AC_PREREQ([2.60]) +AC_PREREQ([2.70]) AC_INIT([libXt], [1.2.1], [https://gitlab.freedesktop.org/xorg/lib/libXt/issues], [libXt]) AC_CONFIG_SRCDIR([Makefile.am]) AC_CONFIG_HEADERS([config.h]) AC_CONFIG_MACRO_DIR([m4]) +# Set common system defines for POSIX extensions, such as _GNU_SOURCE +# Must be called before any macros that run the compiler (like AC_PROG_LIBTOOL) +# to avoid autoconf errors. +AC_USE_SYSTEM_EXTENSIONS + # Initialize Automake AM_INIT_AUTOMAKE([foreign dist-xz]) @@ -53,6 +58,9 @@ XORG_WITH_PERL # Checks for header files. AC_CHECK_HEADER([alloca.h], AC_DEFINE(INCLUDE_ALLOCA_H, 1, [Define to 1 if Xalloca.h should include <alloca.h>])) +# Checks for library functions. +AC_CHECK_FUNCS([reallocarray]) + # Obtain compiler/linker options for dependencies PKG_CHECK_MODULES(XT, sm ice x11 xproto kbproto) |