mirror of
https://github.com/w23/xash3d-fwgs
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248 lines
6.7 KiB
C
248 lines
6.7 KiB
C
/*
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build.h - compile-time build information
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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or
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distribute this software, either in source code form or as a compiled
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binary, for any purpose, commercial or non-commercial, and by any
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means.
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In jurisdictions that recognize copyright laws, the author or authors
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of this software dedicate any and all copyright interest in the
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software to the public domain. We make this dedication for the benefit
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of the public at large and to the detriment of our heirs and
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successors. We intend this dedication to be an overt act of
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relinquishment in perpetuity of all present and future rights to this
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software under copyright law.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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For more information, please refer to <http://unlicense.org/>
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*/
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#pragma once
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#ifndef BUILD_H
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#define BUILD_H
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/*
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All XASH_* macros set by this header are guaranteed to have positive value
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otherwise not defined.
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Every macro is intended to be the unified interface for buildsystems that lack
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platform & CPU detection, and a neat quick way for checks in platform code
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For Q_build* macros, refer to buildenums.h
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Any new define must be undefined at first
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You can generate #undef list below with this oneliner:
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$ sed 's/\t//g' build.h | grep '^#define XASH' | awk '{ print $2 }' | \
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sort | uniq | awk '{ print "#undef " $1 }'
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Then you can use another oneliner to query all variables:
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$ grep '^#undef XASH' build.h | awk '{ print $2 }'
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*/
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#undef XASH_64BIT
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#undef XASH_AMD64
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#undef XASH_ANDROID
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#undef XASH_APPLE
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#undef XASH_ARM
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#undef XASH_ARM_HARDFP
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#undef XASH_ARM_SOFTFP
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#undef XASH_ARMv4
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#undef XASH_ARMv5
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#undef XASH_ARMv6
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#undef XASH_ARMv7
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#undef XASH_ARMv8
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#undef XASH_BIG_ENDIAN
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#undef XASH_DOS4GW
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#undef XASH_E2K
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#undef XASH_EMSCRIPTEN
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#undef XASH_FREEBSD
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#undef XASH_HAIKU
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#undef XASH_IOS
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#undef XASH_IRIX
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#undef XASH_JS
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#undef XASH_LINUX
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#undef XASH_LINUX_UNKNOWN
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#undef XASH_LITTLE_ENDIAN
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#undef XASH_MIPS
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#undef XASH_MOBILE_PLATFORM
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#undef XASH_NETBSD
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#undef XASH_OPENBSD
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#undef XASH_POSIX
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#undef XASH_RISCV
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#undef XASH_RISCV_DOUBLEFP
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#undef XASH_RISCV_SINGLEFP
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#undef XASH_RISCV_SOFTFP
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#undef XASH_SERENITY
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#undef XASH_WIN32
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#undef XASH_X86
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#undef XASH_NSWITCH
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//================================================================
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//
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// PLATFORM DETECTION CODE
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//
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//================================================================
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#if defined _WIN32
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#define XASH_WIN32 1
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#elif defined __EMSCRIPTEN__
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#define XASH_EMSCRIPTEN 1
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#elif defined __WATCOMC__ && defined __DOS__
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#define XASH_DOS4GW 1
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#else // POSIX compatible
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#define XASH_POSIX 1
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#if defined __linux__
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#if defined __ANDROID__
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#define XASH_ANDROID 1
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#else
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#include <features.h>
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// if our system libc has features.h header
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// try to detect it to not confuse other libcs with built with glibc game libraries
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#if !defined __GLIBC__
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#define XASH_LINUX_UNKNOWN 1
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#endif
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#endif
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#define XASH_LINUX 1
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#elif defined __FreeBSD__
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#define XASH_FREEBSD 1
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#elif defined __NetBSD__
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#define XASH_NETBSD 1
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#elif defined __OpenBSD__
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#define XASH_OPENBSD 1
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#elif defined __HAIKU__
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#define XASH_HAIKU 1
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#elif defined __serenity__
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#define XASH_SERENITY 1
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#elif defined __sgi
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#define XASH_IRIX 1
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#elif defined __APPLE__
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#include <TargetConditionals.h>
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#define XASH_APPLE 1
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#if TARGET_OS_IOS
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#define XASH_IOS 1
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#endif // TARGET_OS_IOS
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#elif defined __SWITCH__
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#define XASH_NSWITCH 1
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#else
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#error
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#endif
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#endif
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#if XASH_ANDROID || defined XASH_IOS || defined XASH_NSWITCH
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#define XASH_MOBILE_PLATFORM 1
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#endif
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//================================================================
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//
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// ENDIANNESS DEFINES
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//
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//================================================================
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#if !defined XASH_ENDIANNESS
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#if defined XASH_WIN32 || __LITTLE_ENDIAN__
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//!!! Probably all WinNT installations runs in little endian
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#define XASH_LITTLE_ENDIAN 1
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#elif __BIG_ENDIAN__
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#define XASH_BIG_ENDIAN 1
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#elif defined __BYTE_ORDER__ && defined __ORDER_BIG_ENDIAN__ && defined __ORDER_LITTLE_ENDIAN__ // some compilers define this
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#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#define XASH_BIG_ENDIAN 1
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#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define XASH_LITTLE_ENDIAN 1
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#endif
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#else
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#include <sys/param.h>
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define XASH_BIG_ENDIAN 1
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#elif __BYTE_ORDER == __LITTLE_ENDIAN
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#define XASH_LITTLE_ENDIAN 1
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#endif
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#endif // !XASH_WIN32
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#endif
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//================================================================
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//
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// CPU ARCHITECTURE DEFINES
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//
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//================================================================
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#if defined __x86_64__ || defined _M_X64
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#define XASH_64BIT 1
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#define XASH_AMD64 1
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#elif defined __i386__ || defined _X86_ || defined _M_IX86
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#define XASH_X86 1
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#elif defined __aarch64__ || defined _M_ARM64
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#define XASH_64BIT 1
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#define XASH_ARM 8
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#elif defined __mips__
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#define XASH_MIPS 1
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#elif defined __EMSCRIPTEN__
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#define XASH_JS 1
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#elif defined __e2k__
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#define XASH_64BIT 1
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#define XASH_E2K 1
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#elif defined _M_ARM // msvc
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#define XASH_ARM 7
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#define XASH_ARM_HARDFP 1
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#elif defined __arm__
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#if __ARM_ARCH == 8 || __ARM_ARCH_8__
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#define XASH_ARM 8
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#elif __ARM_ARCH == 7 || __ARM_ARCH_7__
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#define XASH_ARM 7
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#elif __ARM_ARCH == 6 || __ARM_ARCH_6__ || __ARM_ARCH_6J__
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#define XASH_ARM 6
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#elif __ARM_ARCH == 5 || __ARM_ARCH_5__
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#define XASH_ARM 5
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#elif __ARM_ARCH == 4 || __ARM_ARCH_4__
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#define XASH_ARM 4
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#else
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#error "Unknown ARM"
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#endif
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#if defined __SOFTFP__ || __ARM_PCS_VFP == 0
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#define XASH_ARM_SOFTFP 1
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#else // __SOFTFP__
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#define XASH_ARM_HARDFP 1
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#endif // __SOFTFP__
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#elif defined __riscv
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#define XASH_RISCV 1
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#if __riscv_xlen == 64
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#define XASH_64BIT 1
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#elif __riscv_xlen != 32
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#error "Unknown RISC-V ABI"
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#endif
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#if defined __riscv_float_abi_soft
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#define XASH_RISCV_SOFTFP 1
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#elif defined __riscv_float_abi_single
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#define XASH_RISCV_SINGLEFP 1
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#elif defined __riscv_float_abi_double
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#define XASH_RISCV_DOUBLEFP 1
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#else
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#error "Unknown RISC-V float ABI"
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#endif
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#else
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#error "Place your architecture name here! If this is a mistake, try to fix conditions above and report a bug"
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#endif
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#if XASH_ARM == 8
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#define XASH_ARMv8 1
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#elif XASH_ARM == 7
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#define XASH_ARMv7 1
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#elif XASH_ARM == 6
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#define XASH_ARMv6 1
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#elif XASH_ARM == 5
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#define XASH_ARMv5 1
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#elif XASH_ARM == 4
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#define XASH_ARMv4 1
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#endif
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#endif // BUILD_H
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