annotate mupdf-source/thirdparty/curl/CMake/CurlSymbolHiding.cmake @ 46:7ee69f120f19 default tip

>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 include(CheckCSourceCompiles)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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2
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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3 option(CURL_HIDDEN_SYMBOLS "Set to ON to hide libcurl internal symbols (=hide all symbols that aren't officially external)." ON)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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4 mark_as_advanced(CURL_HIDDEN_SYMBOLS)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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5
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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6 if(CURL_HIDDEN_SYMBOLS)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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7 set(SUPPORTS_SYMBOL_HIDING FALSE)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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8
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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9 if(CMAKE_C_COMPILER_ID MATCHES "Clang")
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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10 set(SUPPORTS_SYMBOL_HIDING TRUE)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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11 set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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12 set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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13 elseif(CMAKE_COMPILER_IS_GNUCC)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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14 if(NOT CMAKE_VERSION VERSION_LESS 2.8.10)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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15 set(GCC_VERSION ${CMAKE_C_COMPILER_VERSION})
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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16 else()
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17 execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion
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18 OUTPUT_VARIABLE GCC_VERSION)
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19 endif()
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20 if(NOT GCC_VERSION VERSION_LESS 3.4)
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21 # note: this is considered buggy prior to 4.0 but the autotools don't care, so let's ignore that fact
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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22 set(SUPPORTS_SYMBOL_HIDING TRUE)
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23 set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
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24 set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
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25 endif()
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26 elseif(CMAKE_C_COMPILER_ID MATCHES "SunPro" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 8.0)
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27 set(SUPPORTS_SYMBOL_HIDING TRUE)
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28 set(_SYMBOL_EXTERN "__global")
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29 set(_CFLAG_SYMBOLS_HIDE "-xldscope=hidden")
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30 elseif(CMAKE_C_COMPILER_ID MATCHES "Intel" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 9.0)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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31 # note: this should probably just check for version 9.1.045 but I'm not 100% sure
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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32 # so let's do it the same way autotools do.
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33 set(SUPPORTS_SYMBOL_HIDING TRUE)
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34 set(_SYMBOL_EXTERN "__attribute__ ((__visibility__ (\"default\")))")
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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35 set(_CFLAG_SYMBOLS_HIDE "-fvisibility=hidden")
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36 check_c_source_compiles("#include <stdio.h>
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37 int main (void) { printf(\"icc fvisibility bug test\"); return 0; }" _no_bug)
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38 if(NOT _no_bug)
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39 set(SUPPORTS_SYMBOL_HIDING FALSE)
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40 set(_SYMBOL_EXTERN "")
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41 set(_CFLAG_SYMBOLS_HIDE "")
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42 endif()
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43 elseif(MSVC)
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44 set(SUPPORTS_SYMBOL_HIDING TRUE)
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45 endif()
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46
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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47 set(HIDES_CURL_PRIVATE_SYMBOLS ${SUPPORTS_SYMBOL_HIDING})
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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48 elseif(MSVC)
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49 if(NOT CMAKE_VERSION VERSION_LESS 3.7)
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50 set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE) #present since 3.4.3 but broken
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51 set(HIDES_CURL_PRIVATE_SYMBOLS FALSE)
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52 else()
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53 message(WARNING "Hiding private symbols regardless CURL_HIDDEN_SYMBOLS being disabled.")
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54 set(HIDES_CURL_PRIVATE_SYMBOLS TRUE)
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55 endif()
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56 else()
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57 set(HIDES_CURL_PRIVATE_SYMBOLS FALSE)
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58 endif()
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59
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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60 set(CURL_CFLAG_SYMBOLS_HIDE ${_CFLAG_SYMBOLS_HIDE})
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61 set(CURL_EXTERN_SYMBOL ${_SYMBOL_EXTERN})