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annotate Resources/CMake/Compiler.cmake @ 2544:d5ca5a5abe12

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 17 Apr 2018 20:42:07 +0200
parents 04873915beaf
children 13038d638097
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1 # This file sets all the compiler-related flags
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2
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3 if (CMAKE_CROSSCOMPILING OR
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4 "${CMAKE_SYSTEM_VERSION}" STREQUAL "LinuxStandardBase")
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5 # Cross-compilation necessarily implies standalone and static build
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6 SET(STATIC_BUILD ON)
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7 SET(STANDALONE_BUILD ON)
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8 endif()
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9
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10 if (CMAKE_COMPILER_IS_GNUCXX)
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11 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wno-long-long")
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12
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13 # --std=c99 makes libcurl not to compile
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14 # -pedantic gives a lot of warnings on OpenSSL
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15 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wno-long-long -Wno-variadic-macros")
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16
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17 if (CMAKE_CROSSCOMPILING)
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18 # http://stackoverflow.com/a/3543845/881731
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19 set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> -O coff -I<CMAKE_CURRENT_SOURCE_DIR> <SOURCE> <OBJECT>")
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20 endif()
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21
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22 elseif (MSVC)
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23 # Use static runtime under Visual Studio
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24 # http://www.cmake.org/Wiki/CMake_FAQ#Dynamic_Replace
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25 # http://stackoverflow.com/a/6510446
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26 foreach(flag_var
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27 CMAKE_C_FLAGS_DEBUG
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28 CMAKE_CXX_FLAGS_DEBUG
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29 CMAKE_C_FLAGS_RELEASE
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30 CMAKE_CXX_FLAGS_RELEASE
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31 CMAKE_C_FLAGS_MINSIZEREL
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32 CMAKE_CXX_FLAGS_MINSIZEREL
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33 CMAKE_C_FLAGS_RELWITHDEBINFO
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34 CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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35 string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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36 string(REGEX REPLACE "/MDd" "/MTd" ${flag_var} "${${flag_var}}")
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37 endforeach(flag_var)
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38
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39 # Add /Zm256 compiler option to Visual Studio to fix PCH errors
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40 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Zm256")
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41
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42 add_definitions(
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43 -D_CRT_SECURE_NO_WARNINGS=1
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44 -D_CRT_SECURE_NO_DEPRECATE=1
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45 )
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46
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47 if (MSVC_VERSION LESS 1600)
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48 # Starting with Visual Studio >= 2010 (i.e. macro _MSC_VER >=
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49 # 1600), Microsoft ships a standard-compliant <stdint.h>
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50 # header. For earlier versions of Visual Studio, give access to a
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51 # compatibility header.
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52 # http://stackoverflow.com/a/70630/881731
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53 # https://en.wikibooks.org/wiki/C_Programming/C_Reference/stdint.h#External_links
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54 include_directories(${ORTHANC_ROOT}/Resources/ThirdParty/VisualStudio)
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55 endif()
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56
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57 link_libraries(netapi32)
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58 endif()
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59
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60
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61 if (${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" OR
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62 ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
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63 # In FreeBSD/OpenBSD, the "/usr/local/" folder contains the ports and need to be imported
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64 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -I/usr/local/include")
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65 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I/usr/local/include")
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66 SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -L/usr/local/lib")
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67 SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -L/usr/local/lib")
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68 endif()
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69
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70
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71 if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux" OR
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72 ${CMAKE_SYSTEM_NAME} STREQUAL "kFreeBSD" OR
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73 ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" OR
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74 ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
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75
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76 if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
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77 # The "--no-undefined" linker flag makes the shared libraries
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78 # (plugins ModalityWorklists and ServeFolders) fail to compile on OpenBSD
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79 set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--no-undefined")
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80 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-undefined")
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81 endif()
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82
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83 if (NOT DEFINED ENABLE_PLUGINS_VERSION_SCRIPT OR
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84 ENABLE_PLUGINS_VERSION_SCRIPT)
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85 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--version-script=${ORTHANC_ROOT}/Plugins/Samples/Common/VersionScript.map")
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86 endif()
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87
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88 # Remove the "-rdynamic" option
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89 # http://www.mail-archive.com/cmake@cmake.org/msg08837.html
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90 set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
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91 link_libraries(pthread)
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92
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93 if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
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94 link_libraries(rt)
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95 endif()
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96
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97 if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" AND
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98 NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
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99 link_libraries(dl)
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100 endif()
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101
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102 if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" AND
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103 NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
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104 # The "--as-needed" linker flag is not available on FreeBSD and OpenBSD
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105 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--as-needed")
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106 set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--as-needed")
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107 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--as-needed")
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108 endif()
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109
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110 if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD" AND
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111 NOT ${CMAKE_SYSTEM_NAME} STREQUAL "OpenBSD")
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112 # FreeBSD/OpenBSD have just one single interface for file
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113 # handling, which is 64bit clean, so there is no need to define macro
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114 # for LFS (Large File Support).
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115 # https://ohse.de/uwe/articles/lfs.html
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116 add_definitions(
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117 -D_LARGEFILE64_SOURCE=1
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118 -D_FILE_OFFSET_BITS=64
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119 )
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120 endif()
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121
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122 elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
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123 if (MSVC)
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124 message("MSVC compiler version = " ${MSVC_VERSION} "\n")
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125 # Starting Visual Studio 2013 (version 1800), it is not possible
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126 # to target Windows XP anymore
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127 if (MSVC_VERSION LESS 1800)
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128 add_definitions(
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129 -DWINVER=0x0501
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130 -D_WIN32_WINNT=0x0501
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131 )
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132 endif()
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133 else()
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134 add_definitions(
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135 -DWINVER=0x0501
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136 -D_WIN32_WINNT=0x0501
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137 )
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138 endif()
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139
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140 add_definitions(
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141 -D_CRT_SECURE_NO_WARNINGS=1
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142 )
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143 link_libraries(rpcrt4 ws2_32)
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144
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145 if (CMAKE_COMPILER_IS_GNUCXX)
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146 # Some additional C/C++ compiler flags for MinGW
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147 SET(MINGW_NO_WARNINGS "-Wno-unused-function -Wno-unused-variable")
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148 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MINGW_NO_WARNINGS} -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast")
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149 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MINGW_NO_WARNINGS}")
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150
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151 # This is a patch for MinGW64
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152 SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--allow-multiple-definition -static-libgcc -static-libstdc++")
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153 SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--allow-multiple-definition -static-libgcc -static-libstdc++")
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154
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155 CHECK_LIBRARY_EXISTS(winpthread pthread_create "" HAVE_WIN_PTHREAD)
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156 if (HAVE_WIN_PTHREAD)
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157 # This line is necessary to compile with recent versions of MinGW,
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158 # otherwise "libwinpthread-1.dll" is not statically linked.
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159 SET(CMAKE_CXX_STANDARD_LIBRARIES "${CMAKE_CXX_STANDARD_LIBRARIES} -Wl,-Bstatic -lstdc++ -lpthread -Wl,-Bdynamic")
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160 add_definitions(-DHAVE_WIN_PTHREAD=1)
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161 else()
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162 add_definitions(-DHAVE_WIN_PTHREAD=0)
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163 endif()
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164 endif()
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165
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166 elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
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167 SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -exported_symbols_list ${ORTHANC_ROOT}/Plugins/Samples/Common/ExportedSymbols.list")
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168
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169 add_definitions(
ac8f68cbdbb6 build cont
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170 -D_XOPEN_SOURCE=1
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171 )
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172 link_libraries(iconv)
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173
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174 elseif (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
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175 message("Building using Emscripten (for WebAssembly or asm.js targets)")
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176
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177 # The BINARYEN_TRAP_MODE specifies what to do when divisions per
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178 # zero (and similar conditions like integer overflows) are
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179 # encountered: The "clamp" mode avoids throwing errors, as they
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180 # cannot be properly catched by "try {} catch (...)" constructions.
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181 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s EXTRA_EXPORTED_RUNTIME_METHODS='[\"ccall\", \"cwrap\"]' -s BINARYEN_TRAP_MODE='\"clamp\"'")
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182
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183 else()
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184 message(FATAL_ERROR "Support your platform here")
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185 endif()
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186
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187
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188 if (DEFINED ENABLE_PROFILING AND ENABLE_PROFILING)
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189 if (CMAKE_COMPILER_IS_GNUCXX)
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190 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pg")
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191 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pg")
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192 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pg")
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193 set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -pg")
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194 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -pg")
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195 else()
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196 message(FATAL_ERROR "Don't know how to enable profiling on your configuration")
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197 endif()
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198 endif()
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199
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200
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201 if (CMAKE_COMPILER_IS_GNUCXX)
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202 # "When creating a static library using binutils (ar) and there
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203 # exist a duplicate object name (e.g. a/Foo.cpp.o, b/Foo.cpp.o), the
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204 # resulting static library can end up having only one of the
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205 # duplicate objects. [...] This bug only happens if there are many
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diff changeset
206 # objects." The trick consists in replacing the "r" argument
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207 # ("replace") provided to "ar" (as used in CMake < 3.1) by the "q"
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208 # argument ("quick append"). This is because of the fact that CMake
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209 # will invoke "ar" several times with several batches of ".o"
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210 # objects, and using "r" would overwrite symbols defined in
2a211c0fc7ca note about ar
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diff changeset
211 # preceding batches. https://cmake.org/Bug/view.php?id=14874
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diff changeset
212 set(CMAKE_CXX_ARCHIVE_APPEND "<CMAKE_AR> <LINK_FLAGS> q <TARGET> <OBJECTS>")
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diff changeset
213 endif()
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214
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215
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216 if (STATIC_BUILD)
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217 add_definitions(-DORTHANC_STATIC=1)
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218 else()
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219 add_definitions(-DORTHANC_STATIC=0)
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220 endif()