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annotate cmake/IrccdSystem.cmake @ 505:e304b35d9b5b

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CMake: embed Mercurial version, closes #696
author David Demelier <markand@malikania.fr>
date Thu, 12 Oct 2017 21:46:18 +0200
parents 0b156b82b8c1
children 65e80d258b34
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1 #
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2 # Config.cmake -- CMake build system for irccd
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3 #
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c6fbb6e0e06d Happy new year!
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4 # Copyright (c) 2013-2017 David Demelier <markand@malikania.fr>
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5 #
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6 # Permission to use, copy, modify, and/or distribute this software for any
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7 # purpose with or without fee is hereby granted, provided that the above
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8 # copyright notice and this permission notice appear in all copies.
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9 #
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10 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 #
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18
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19 include(CheckFunctionExists)
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20 include(CheckIncludeFile)
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21 include(CheckStructHasMember)
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22 include(CheckSymbolExists)
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23 include(CheckTypeSize)
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24
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25 #
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26 # Global compile flags.
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27 # -------------------------------------------------------------------
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28 #
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29
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30 #
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31 # Recent versions of CMake has nice C++ feature detection for modern
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32 # C++ but they are still a bit buggy so we use this
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33 # instead.
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34 #
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35 if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
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36 #
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37 # For GCC, we require at least GCC 5.1
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38 #
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39 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.1")
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40 message(FATAL_ERROR "You need at least GCC 5.1")
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41 endif ()
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42
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43 set(CMAKE_CXX_FLAGS "-Wall -Wextra -std=c++14 ${CMAKE_CXX_FLAGS}")
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44 elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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45 #
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46 # LLVM/clang implemented C++14 starting from version 3.4 but the
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47 # switch -std=c++14 was not available.
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48 #
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49 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.4")
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50 message(FATAL_ERROR "You need at least Clang 3.4")
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51 endif ()
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52
207
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53 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5")
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54 set(CMAKE_CXX_FLAGS "-Wall -Wextra -std=c++1y ${CMAKE_CXX_FLAGS}")
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55 else ()
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56 set(CMAKE_CXX_FLAGS "-Wall -Wextra -std=c++14 ${CMAKE_CXX_FLAGS}")
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57 endif ()
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58 elseif (MSVC14)
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59 set(CMAKE_C_FLAGS "/DWIN32_LEAN_AND_MEAN /DNOMINMAX /wd4267 /wd4800 /D_CRT_SECURE_NO_WARNINGS ${CMAKE_C_FLAGS}")
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60 set(CMAKE_CXX_FLAGS "/DWIN32_LEAN_AND_MEAN /DNOMINMAX /wd4267 /wd4800 /D_CRT_SECURE_NO_WARNINGS /EHsc ${CMAKE_CXX_FLAGS}")
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61 else ()
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62 message(WARNING "Unsupported ${CMAKE_CXX_COMPILER_ID}, may not build correctly.")
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63 endif ()
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64
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65 if (MINGW)
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66 set(CMAKE_CXX_FLAGS "-D_WIN32_WINNT=0x0600 ${CMAKE_CXX_FLAGS}")
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67 endif ()
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68
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69 if (CMAKE_SIZEOF_VOID_P MATCHES "8")
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70 set(IRCCD_64BITS TRUE)
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71 else ()
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72 set(IRCCD_64BITS FALSE)
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73 endif ()
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74
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75 #
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76 # System identification.
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77 # -------------------------------------------------------------------
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78 #
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79
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80 if (WIN32)
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81 set(IRCCD_SYSTEM_WINDOWS TRUE)
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82 elseif (APPLE)
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83 set(IRCCD_SYSTEM_MAC TRUE)
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84 elseif (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
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85 set(IRCCD_SYSTEM_FREEBSD TRUE)
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86 elseif (CMAKE_SYSTEM_NAME MATCHES "DragonFly")
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87 set(IRCCD_SYSTEM_DRAGONFLYBSD TRUE)
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88 elseif (CMAKE_SYSTEM_NAME MATCHES "NetBSD")
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89 set(IRCCD_SYSTEM_NETBSD TRUE)
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90 elseif (CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
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91 set(IRCCD_SYSTEM_OPENBSD TRUE)
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92 elseif (CMAKE_SYSTEM_NAME MATCHES "Linux")
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93 set(IRCCD_SYSTEM_LINUX TRUE)
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94 endif ()
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95
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96 #
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97 # Portability requirements.
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98 # -------------------------------------------------------------------
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99 #
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100
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101 check_type_size(int8_t HAVE_INT8)
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102 check_type_size(uint8_t HAVE_UINT8)
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103 check_type_size(int16_t HAVE_INT16)
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104 check_type_size(uint16_t HAVE_UINT16)
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105 check_type_size(int32_t HAVE_INT32)
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106 check_type_size(uint32_t HAVE_UINT32)
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107 check_type_size(int64_t HAVE_INT64)
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108 check_type_size(uint64_t HAVE_UINT64)
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109
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110 if (NOT HAVE_STDINT_H)
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111 message("irccd requires stdint.h or cstdint header")
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112 endif ()
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113
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114 #
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115 # Where any of these function / feature is required, include the <irccd/sysconfig.h> file.
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116 #
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117 # The following variables are defined in irccd/sysconfig.h
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118 #
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119 # HAVE_ACCESS True if has access(2) function (and sys/types.h and sys/stat.h),
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120 # HAVE_DAEMON True if daemon(3),
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121 # HAVE_GETPID True if has getpid(2) function (and sys/types.h and unistd.h and grp.h),
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122 # HAVE_POPEN True if has popen(3) function (in stdio.h)
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123 # HAVE_SETGID True if has setgid(2) function and getgrnam(3) (and sys/types.h and unistd.h and pwd.h),
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124 # HAVE_SETPROGNAME True if setprogname(3) is available from C library,
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125 # HAVE_SETUID True if has setuid(2) function and getpwnam(3) (and sys/types.h and unistd.h and pwd.h),
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126 # HAVE_STAT True if has stat(2) function (and sys/types.h and sys/stat.h),
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127 # HAVE_STAT_ST_DEV The struct stat has st_dev field,
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128 # HAVE_STAT_ST_INO The struct stat has st_ino field,
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129 # HAVE_STAT_ST_NLINK The struct stat has st_nlink field,
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130 # HAVE_STAT_ST_UID The struct stat has st_uid field,
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131 # HAVE_STAT_ST_GID The struct stat has st_gid field,
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132 # HAVE_STAT_ST_ATIME The struct stat has st_atime field,
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133 # HAVE_STAT_ST_MTIME The struct stat has st_mtime field,
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134 # HAVE_STAT_ST_CTIME The struct stat has st_ctime field,
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135 # HAVE_STAT_ST_SIZE The struct stat has st_size field,
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136 # HAVE_STAT_ST_BLKSIZE The struct stat has st_blksize field,
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137 # HAVE_STAT_ST_BLOCKS The struct stat has st_blocks field,
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138 # HAVE_SYSLOG True if syslog functions are available (and syslog.h),
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139 #
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140
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141 # Check for unistd.h
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142 check_include_file(unistd.h HAVE_UNISTD_H)
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143
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parents:
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144 # Check for sys/types.h
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145 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
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parents:
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146
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147 # Check for daemon(3) function, include:
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148 #
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149 # #include <cstdlib>
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150 check_function_exists(daemon HAVE_DAEMON)
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151
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152 # Check of setprogname(3) function, include:
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153 #
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154 # #include <cstdlib>
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155 check_function_exists(setprogname HAVE_SETPROGNAME)
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156
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157 # access() POSIX function
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158 #
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159 # If HAVE_ACCESS is defined, include:
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160 #
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161 # #include <unistd.h>
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162 check_function_exists(access HAVE_ACCESS)
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163
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164 if (NOT HAVE_UNISTD_H)
207
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diff changeset
165 set(HAVE_ACCESS FALSE)
0
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166 endif ()
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parents:
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167
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168 # getpid() function
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169 #
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170 # If HAVE_GETPID is defined, include:
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171 #
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172 # #include <sys/types.h>
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173 # #include <unistd.h>
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174 check_function_exists(getpid HAVE_GETPID)
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parents:
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175
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176 if (NOT HAVE_UNISTD_H OR NOT HAVE_SYS_TYPES_H)
207
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parents: 160
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177 set(HAVE_GETPID FALSE)
0
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178 endif ()
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179
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180 # setgid() function (and getgrnam)
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181 #
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182 # If HAVE_SETGID is defined, include:
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183 #
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184 # #include <sys/types.h>
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185 # #include <unistd.h>
207
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186 # #include <grp.h> // only for getgrnam
0
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187 check_include_file(grp.h HAVE_GRP_H)
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188 check_function_exists(getgrnam HAVE_GETGRNAM)
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189 check_function_exists(setgid HAVE_SETGID)
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parents:
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190
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191 if (NOT HAVE_UNISTD_H OR NOT HAVE_SYS_TYPES_H OR NOT HAVE_GETGRNAM OR NOT HAVE_GRP_H)
207
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192 set(HAVE_SETGID FALSE)
0
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193 endif ()
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194
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195 # popen() function
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196 #
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197 # If HAVE_POPEN is defined, include;
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198 #
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199 # #include <cstdio>
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200 check_function_exists(popen HAVE_POPEN)
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201
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202 # setuid() function (and getpwnam)
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203 #
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204 # If HAVE_SETUID is defined, include:
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205 #
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206 # #include <sys/types.h>
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207 # #include <unistd.h>
207
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208 # #include <pwd.h> // only for getpwnam
0
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209 check_include_file(pwd.h HAVE_PWD_H)
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210 check_function_exists(getpwnam HAVE_GETPWNAM)
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211 check_function_exists(setuid HAVE_SETUID)
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212
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213 if (NOT HAVE_UNISTD_H OR NOT HAVE_SYS_TYPES_H OR NOT HAVE_GETPWNAM OR NOT HAVE_PWD_H)
207
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214 set(HAVE_SETUID FALSE)
0
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215 endif ()
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216
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217 # stat(2) function
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218 #
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219 # If HAVE_STAT is defined, include:
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220 #
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221 # #include <sys/types.h>
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222 # #include <sys/stat.h>
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223 check_include_file(sys/stat.h HAVE_SYS_STAT_H)
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224 check_function_exists(stat HAVE_STAT)
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225
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226 # If the sys/stat.h is not found, we disable stat(2)
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227 if (NOT HAVE_SYS_STAT_H OR NOT HAVE_SYS_TYPES_H)
207
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228 set(HAVE_STAT FALSE)
0
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229 endif ()
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parents:
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230
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231 # syslog functions
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232 #
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233 # If HAVE_SYSLOG is defined, include:
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234 #
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235 # #include <syslog.h>
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236 check_include_file(syslog.h HAVE_SYSLOG_H)
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237 check_function_exists(openlog HAVE_OPENLOG)
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238 check_function_exists(syslog HAVE_SYSLOG)
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239 check_function_exists(closelog HAVE_CLOSELOG)
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diff changeset
240
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diff changeset
241 if (NOT HAVE_SYSLOG_H OR NOT HAVE_OPENLOG OR NOT HAVE_CLOSELOG)
207
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parents: 160
diff changeset
242 set(HAVE_SYSLOG FALSE)
0
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parents:
diff changeset
243 endif ()
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parents:
diff changeset
244
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245 # Check for struct stat fields.
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246 check_struct_has_member("struct stat" st_atime sys/stat.h HAVE_STAT_ST_ATIME)
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parents:
diff changeset
247 check_struct_has_member("struct stat" st_blksize sys/stat.h HAVE_STAT_ST_BLKSIZE)
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diff changeset
248 check_struct_has_member("struct stat" st_blocks sys/stat.h HAVE_STAT_ST_BLOCKS)
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parents:
diff changeset
249 check_struct_has_member("struct stat" st_ctime sys/stat.h HAVE_STAT_ST_CTIME)
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parents:
diff changeset
250 check_struct_has_member("struct stat" st_dev sys/stat.h HAVE_STAT_ST_DEV)
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parents:
diff changeset
251 check_struct_has_member("struct stat" st_gid sys/stat.h HAVE_STAT_ST_GID)
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parents:
diff changeset
252 check_struct_has_member("struct stat" st_ino sys/stat.h HAVE_STAT_ST_INO)
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parents:
diff changeset
253 check_struct_has_member("struct stat" st_mode sys/stat.h HAVE_STAT_ST_MODE)
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parents:
diff changeset
254 check_struct_has_member("struct stat" st_mtime sys/stat.h HAVE_STAT_ST_MTIME)
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parents:
diff changeset
255 check_struct_has_member("struct stat" st_nlink sys/stat.h HAVE_STAT_ST_NLINK)
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parents:
diff changeset
256 check_struct_has_member("struct stat" st_rdev sys/stat.h HAVE_STAT_ST_RDEV)
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parents:
diff changeset
257 check_struct_has_member("struct stat" st_size sys/stat.h HAVE_STAT_ST_SIZE)
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parents:
diff changeset
258 check_struct_has_member("struct stat" st_uid sys/stat.h HAVE_STAT_ST_UID)
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parents:
diff changeset
259
84
c67e734c9241 CMake: rename irccd-config.h to irccd/sysconfig.h, #452
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parents: 0
diff changeset
260 # Configuration file.
485
daf3aa8b2ddb CMake: get rid of fakeroot mechanism, closes #674
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parents: 394
diff changeset
261 file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/irccd)
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parents: 394
diff changeset
262
0
1158cffe5a5e Initial import
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parents:
diff changeset
263 configure_file(
207
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parents: 160
diff changeset
264 ${CMAKE_CURRENT_LIST_DIR}/internal/sysconfig.hpp.in
485
daf3aa8b2ddb CMake: get rid of fakeroot mechanism, closes #674
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parents: 394
diff changeset
265 ${CMAKE_BINARY_DIR}/irccd/sysconfig.hpp
0
1158cffe5a5e Initial import
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parents:
diff changeset
266 )
485
daf3aa8b2ddb CMake: get rid of fakeroot mechanism, closes #674
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parents: 394
diff changeset
267
486
0b156b82b8c1 Irccd: rework of paths, closes #611
David Demelier <markand@malikania.fr>
parents: 485
diff changeset
268 include_directories(
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parents: 485
diff changeset
269 ${CMAKE_BINARY_DIR}
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David Demelier <markand@malikania.fr>
parents: 485
diff changeset
270 ${CMAKE_BINARY_DIR}/irccd
0b156b82b8c1 Irccd: rework of paths, closes #611
David Demelier <markand@malikania.fr>
parents: 485
diff changeset
271 )