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| author | Cory Fields <cory-nospam-@coryfields.com> | 2024-02-27 18:29:24 +0000 |
|---|---|---|
| committer | Cory Fields <cory-nospam-@coryfields.com> | 2024-02-28 13:42:38 +0000 |
| commit | 432b18ca8d0654318a8d882b28b20af2cb2d2e5d (patch) | |
| tree | c3ff23d3ca9195fa94b4a5ad757ac2e2682e63d5 /configure.ac | |
| parent | 297367b3bb062c57142747719ac9bf2e12717ce9 (diff) | |
serialization: detect byteswap builtins without autoconf tests
Rather than a complicated set of tests to decide which bswap functions to
use, always prefer the compiler built-ins when available.
These builtins and fallbacks can all be removed once we're using c++23, which
adds std::byteswap.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac index 50e6870dd9..882bd01075 100644 --- a/configure.ac +++ b/configure.ac @@ -975,7 +975,7 @@ if test "$TARGET_OS" = "darwin"; then AX_CHECK_LINK_FLAG([-Wl,-fixup_chains], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,-fixup_chains"], [], [$LDFLAG_WERROR]) fi -AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h]) +AC_CHECK_HEADERS([endian.h sys/endian.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h]) AC_CHECK_DECLS([getifaddrs, freeifaddrs],[CHECK_SOCKET],, [#include <sys/types.h> @@ -997,11 +997,6 @@ AC_CHECK_DECLS([le16toh, le32toh, le64toh, htole16, htole32, htole64, be16toh, b #include <sys/endian.h> #endif]) -AC_CHECK_DECLS([bswap_16, bswap_32, bswap_64],,, - [#if HAVE_BYTESWAP_H - #include <byteswap.h> - #endif]) - AC_MSG_CHECKING([for __builtin_clzl]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ (void) __builtin_clzl(0); |