Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/zxing-cpp/wrappers/winrt/TargetArch.cmake @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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1 # Based on the Qt 5 processor detection code, so should be very accurate
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2 # https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/global/qprocessordetection.h
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3 # Currently handles ARM (v5, v6, v7, v8), ARM64, x86 (32/64), ia64, and ppc (32/64)
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5 # Regarding POWER/PowerPC, just as is noted in the Qt source,
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6 # "There are many more known variants/revisions that we do not handle/detect."
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8 set(archdetect_c_code "
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9 #if defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_M_ARM) || defined(_M_ARM64) || defined(__aarch64__) || defined(__ARM64__)
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10 #if defined(__aarch64__) || defined(__ARM64__) || defined(_M_ARM64)
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11 #error cmake_ARCH ARM64
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12 #else
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13 #error cmake_ARCH ARM
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14 #endif
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15 #elif defined(__x86_64) || defined(__x86_64__) || defined(__amd64) || defined(_M_X64)
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16 #error cmake_ARCH x64
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17 #elif defined(__ia64) || defined(__ia64__) || defined(_M_IA64)
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18 #error cmake_ARCH ia64
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19 #elif defined(__i386) || defined(__i386__) || defined(_M_IX86)
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20 #error cmake_ARCH x86
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21 #else
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22 #error cmake_ARCH unknown
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23 #endif
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24 ")
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26 # Set ppc_support to TRUE before including this file or ppc and ppc64
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27 # will be treated as invalid architectures since they are no longer supported by Apple
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29 message (STATUS ${CMAKE_GENERATOR})
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31 function(get_target_architecture output_var)
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32 if (MSVC AND (${CMAKE_GENERATOR} MATCHES "X64$"))
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33 set (ARCH x64)
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35 elseif (MSVC AND (${CMAKE_GENERATOR} MATCHES "ARM$"))
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36 set (ARCH ARM)
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38 elseif (MSVC AND (${CMAKE_GENERATOR} MATCHES "ARM64$"))
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39 set (ARCH ARM64)
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41 else()
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42 file(WRITE "${CMAKE_BINARY_DIR}/arch.c" "${archdetect_c_code}")
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44 enable_language(C)
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46 # Detect the architecture in a rather creative way...
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47 # This compiles a small C program which is a series of ifdefs that selects a
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48 # particular #error preprocessor directive whose message string contains the
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49 # target architecture. The program will always fail to compile (both because
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50 # file is not a valid C program, and obviously because of the presence of the
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51 # #error preprocessor directives... but by exploiting the preprocessor in this
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52 # way, we can detect the correct target architecture even when cross-compiling,
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53 # since the program itself never needs to be run (only the compiler/preprocessor)
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54 try_run(
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55 run_result_unused
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56 compile_result_unused
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57 "${CMAKE_BINARY_DIR}"
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58 "${CMAKE_BINARY_DIR}/arch.c"
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59 COMPILE_OUTPUT_VARIABLE ARCH
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60 )
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61
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62 # Parse the architecture name from the compiler output
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63 string(REGEX MATCH "cmake_ARCH ([a-zA-Z0-9_]+)" ARCH "${ARCH}")
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64
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65 # Get rid of the value marker leaving just the architecture name
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66 string(REPLACE "cmake_ARCH " "" ARCH "${ARCH}")
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67
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68 # If we are compiling with an unknown architecture this variable should
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69 # already be set to "unknown" but in the case that it's empty (i.e. due
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70 # to a typo in the code), then set it to unknown
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71 if (NOT ARCH AND MSVC)
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72 set (ARCH x86)
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73 endif()
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74 endif()
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75
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76 set(${output_var} "${ARCH}" PARENT_SCOPE)
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77 endfunction()