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1 ; Options for the C, ObjC, C++ and ObjC++ front ends.
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2 ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
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3 ; Free Software Foundation, Inc.
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4 ;
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5 ; This file is part of GCC.
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6 ;
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7 ; GCC is free software; you can redistribute it and/or modify it under
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8 ; the terms of the GNU General Public License as published by the Free
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9 ; Software Foundation; either version 3, or (at your option) any later
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10 ; version.
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11 ;
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12 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 ; for more details.
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16 ;
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17 ; You should have received a copy of the GNU General Public License
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18 ; along with GCC; see the file COPYING3. If not see
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19 ; <http://www.gnu.org/licenses/>.
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20
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21 ; See the GCC internals manual for a description of this file's format.
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22
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23 ; Please try to keep this file in ASCII collating order.
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24
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25 Language
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26 C
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27
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28 Language
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29 ObjC
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30
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31 Language
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32 C++
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33
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34 Language
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35 ObjC++
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36
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37 -output-pch=
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38 C ObjC C++ ObjC++ Joined Separate
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39
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40 A
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41 C ObjC C++ ObjC++ Joined Separate
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42 -A<question>=<answer> Assert the <answer> to <question>. Putting '-' before <question> disables the <answer> to <question>
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43
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44 C
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45 C ObjC C++ ObjC++
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46 Do not discard comments
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47
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48 CC
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49 C ObjC C++ ObjC++
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50 Do not discard comments in macro expansions
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51
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52 D
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53 C ObjC C++ ObjC++ Joined Separate
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54 -D<macro>[=<val>] Define a <macro> with <val> as its value. If just <macro> is given, <val> is taken to be 1
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55
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56 E
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57 C ObjC C++ ObjC++ Undocumented
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58
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59 F
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60 C ObjC C++ ObjC++ Joined Separate
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61 -F <dir> Add <dir> to the end of the main framework include path
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62
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63 H
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64 C ObjC C++ ObjC++
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65 Print the name of header files as they are used
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66
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67 I
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68 C ObjC C++ ObjC++ Joined Separate
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69 -I <dir> Add <dir> to the end of the main include path
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70
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71 M
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72 C ObjC C++ ObjC++
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73 Generate make dependencies
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74
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75 MD
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76 C ObjC C++ ObjC++ Separate
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77 Generate make dependencies and compile
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78
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79 MF
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80 C ObjC C++ ObjC++ Joined Separate
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81 -MF <file> Write dependency output to the given file
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82
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83 MG
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84 C ObjC C++ ObjC++
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85 Treat missing header files as generated files
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86
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87 MM
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88 C ObjC C++ ObjC++
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89 Like -M but ignore system header files
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90
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91 MMD
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92 C ObjC C++ ObjC++ Separate
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93 Like -MD but ignore system header files
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94
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95 MP
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96 C ObjC C++ ObjC++
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97 Generate phony targets for all headers
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98
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99 MQ
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100 C ObjC C++ ObjC++ Joined Separate
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101 -MQ <target> Add a MAKE-quoted target
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102
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103 MT
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104 C ObjC C++ ObjC++ Joined Separate
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105 -MT <target> Add an unquoted target
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106
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107 P
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108 C ObjC C++ ObjC++
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109 Do not generate #line directives
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110
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111 U
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112 C ObjC C++ ObjC++ Joined Separate
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113 -U<macro> Undefine <macro>
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114
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115 Wabi
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116 C ObjC C++ ObjC++ Var(warn_abi) Warning
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117 Warn about things that will change when compiling with an ABI-compliant compiler
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118
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119 Wpsabi
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120 C ObjC C++ ObjC++ Var(warn_psabi) Init(1) Undocumented
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121
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122 Waddress
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123 C ObjC C++ ObjC++ Var(warn_address) Warning
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124 Warn about suspicious uses of memory addresses
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125
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126 Wall
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127 C ObjC C++ ObjC++ Warning
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128 Enable most warning messages
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129
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130 Wassign-intercept
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131 ObjC ObjC++ Var(warn_assign_intercept) Warning
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132 Warn whenever an Objective-C assignment is being intercepted by the garbage collector
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133
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134 Wbad-function-cast
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135 C ObjC Var(warn_bad_function_cast) Warning
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136 Warn about casting functions to incompatible types
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137
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138 Wbuiltin-macro-redefined
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139 C ObjC C++ ObjC++ Warning
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140 Warn when a built-in preprocessor macro is undefined or redefined
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141
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142 Wc++-compat
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143 C ObjC Var(warn_cxx_compat) Warning
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144 Warn about C constructs that are not in the common subset of C and C++
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145
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146 Wc++0x-compat
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147 C++ ObjC++ Var(warn_cxx0x_compat) Warning
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148 Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 200x
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149
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150 Wcast-qual
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151 C ObjC C++ ObjC++ Var(warn_cast_qual) Warning
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152 Warn about casts which discard qualifiers
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153
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154 Wchar-subscripts
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155 C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning
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156 Warn about subscripts whose type is \"char\"
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157
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158 Wclobbered
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159 C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) Warning
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160 Warn about variables that might be changed by \"longjmp\" or \"vfork\"
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161
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162 Wcomment
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163 C ObjC C++ ObjC++ Warning
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164 Warn about possibly nested block comments, and C++ comments spanning more than one physical line
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165
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166 Wcomments
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167 C ObjC C++ ObjC++ Warning
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168 Synonym for -Wcomment
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169
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170 Wconversion
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171 C ObjC C++ ObjC++ Var(warn_conversion) Warning
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172 Warn for implicit type conversions that may change a value
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173
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174 Wsign-conversion
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175 C ObjC C++ ObjC++ Var(warn_sign_conversion) Init(-1)
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176 Warn for implicit type conversions between signed and unsigned integers
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177
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178 Wctor-dtor-privacy
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179 C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning
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180 Warn when all constructors and destructors are private
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181
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182 Wdeclaration-after-statement
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183 C ObjC Var(warn_declaration_after_statement) Warning
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184 Warn when a declaration is found after a statement
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185
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186 Wdeprecated
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187 C C++ ObjC ObjC++ Var(warn_deprecated) Init(1) Warning
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188 Warn if a deprecated compiler feature, class, method, or field is used
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189
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190 Wdiv-by-zero
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191 C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning
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192 Warn about compile-time integer division by zero
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193
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194 Weffc++
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195 C++ ObjC++ Var(warn_ecpp) Warning
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196 Warn about violations of Effective C++ style rules
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197
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198 Wempty-body
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199 C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning
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200 Warn about an empty body in an if or else statement
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201
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202 Wendif-labels
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203 C ObjC C++ ObjC++ Warning
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204 Warn about stray tokens after #elif and #endif
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205
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206 Wenum-compare
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207 C++ ObjC++ Var(warn_enum_compare) Init(1) Warning
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208 Warn about comparison of different enum types
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209
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210 Werror
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211 C ObjC C++ ObjC++
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212 ; Documented in common.opt
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213
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214 Werror-implicit-function-declaration
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215 C ObjC RejectNegative Warning
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216 This switch is deprecated; use -Werror=implicit-function-declaration instead
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217
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218 Wfloat-equal
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219 C ObjC C++ ObjC++ Var(warn_float_equal) Warning
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220 Warn if testing floating point numbers for equality
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221
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222 Wformat
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223 C ObjC C++ ObjC++ Warning
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224 Warn about printf/scanf/strftime/strfmon format string anomalies
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225
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226 Wformat-extra-args
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227 C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning
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228 Warn if passing too many arguments to a function for its format string
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229
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230 Wformat-nonliteral
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231 C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning
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232 Warn about format strings that are not literals
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233
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234 Wformat-contains-nul
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235 C ObjC C++ ObjC++ Var(warn_format_contains_nul) Warning
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236 Warn about format strings that contain NUL bytes
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237
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238 Wformat-security
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239 C ObjC C++ ObjC++ Var(warn_format_security) Warning
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240 Warn about possible security problems with format functions
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241
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242 Wformat-y2k
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243 C ObjC C++ ObjC++ Var(warn_format_y2k) Warning
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244 Warn about strftime formats yielding 2-digit years
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245
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246 Wformat-zero-length
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247 C ObjC Var(warn_format_zero_length) Warning
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248 Warn about zero-length formats
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249
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250 Wformat=
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251 C ObjC C++ ObjC++ Joined Warning
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252
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253 Wignored-qualifiers
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254 C C++ Var(warn_ignored_qualifiers) Init(-1) Warning
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255 Warn whenever type qualifiers are ignored.
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256
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257 Winit-self
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258 C ObjC C++ ObjC++ Var(warn_init_self) Warning
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259 Warn about variables which are initialized to themselves
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260
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261 Wimplicit
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262 C ObjC C++ ObjC++ Warning
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263
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264 Wimplicit-function-declaration
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265 C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning
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266 Warn about implicit function declarations
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267
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268 Wimplicit-int
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269 C ObjC Var(warn_implicit_int) Warning
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270 Warn when a declaration does not specify a type
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271
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272 Wimport
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273 C ObjC C++ ObjC++ Undocumented
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274
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275 Wint-to-pointer-cast
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276 C ObjC Var(warn_int_to_pointer_cast) Init(1) Warning
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277 Warn when there is a cast to a pointer from an integer of a different size
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278
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279 Winvalid-offsetof
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280 C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning
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281 Warn about invalid uses of the \"offsetof\" macro
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282
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283 Winvalid-pch
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284 C ObjC C++ ObjC++ Warning
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285 Warn about PCH files that are found but not used
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286
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287 Wlong-long
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288 C ObjC C++ ObjC++ Var(warn_long_long) Init(1) Warning
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289 Do not warn about using \"long long\" when -pedantic
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290
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291 Wmain
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292 C ObjC C++ ObjC++ Var(warn_main) Init(-1) Warning
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293 Warn about suspicious declarations of \"main\"
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294
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295 Wmissing-braces
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296 C ObjC C++ ObjC++ Var(warn_missing_braces) Warning
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297 Warn about possibly missing braces around initializers
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298
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299 Wmissing-declarations
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300 C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning
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301 Warn about global functions without previous declarations
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302
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303 Wmissing-field-initializers
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304 C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning
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305 Warn about missing fields in struct initializers
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306
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307 Wmissing-format-attribute
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308 C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning
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309 Warn about functions which might be candidates for format attributes
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310
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311 Wmissing-include-dirs
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312 C ObjC C++ ObjC++ Warning
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313 Warn about user-specified include directories that do not exist
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314
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315 Wmissing-parameter-type
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316 C ObjC Var(warn_missing_parameter_type) Init(-1) Warning
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317 Warn about function parameters declared without a type specifier in K&R-style functions
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318
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319 Wmissing-prototypes
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320 C ObjC Var(warn_missing_prototypes) Warning
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321 Warn about global functions without prototypes
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322
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323 Wmultichar
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324 C ObjC C++ ObjC++ Warning
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325 Warn about use of multi-character character constants
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326
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327 Wnested-externs
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328 C ObjC Var(warn_nested_externs) Warning
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329 Warn about \"extern\" declarations not at file scope
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330
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331 Wnon-template-friend
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332 C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning
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333 Warn when non-templatized friend functions are declared within a template
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334
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335 Wnon-virtual-dtor
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336 C++ ObjC++ Var(warn_nonvdtor) Warning
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337 Warn about non-virtual destructors
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338
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339 Wnonnull
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340 C ObjC Var(warn_nonnull) Warning
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341 Warn about NULL being passed to argument slots marked as requiring non-NULL
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342
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343 Wnormalized=
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344 C ObjC C++ ObjC++ Joined Warning
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345 -Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings
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346
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347 Wold-style-cast
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348 C++ ObjC++ Var(warn_old_style_cast) Warning
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349 Warn if a C-style cast is used in a program
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350
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351 Wold-style-declaration
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352 C ObjC Var(warn_old_style_declaration) Init(-1) Warning
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353 Warn for obsolescent usage in a declaration
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354
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355 Wold-style-definition
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356 C ObjC Var(warn_old_style_definition) Warning
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357 Warn if an old-style parameter definition is used
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358
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359 Woverlength-strings
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360 C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning
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361 Warn if a string is longer than the maximum portable length specified by the standard
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362
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363 Woverloaded-virtual
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364 C++ ObjC++ Var(warn_overloaded_virtual) Warning
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365 Warn about overloaded virtual function names
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366
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367 Woverride-init
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368 C ObjC Var(warn_override_init) Init(-1) Warning
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369 Warn about overriding initializers without side effects
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370
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371 Wpacked-bitfield-compat
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372 C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning
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373 Warn about packed bit-fields whose offset changed in GCC 4.4
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374
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375 Wparentheses
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376 C ObjC C++ ObjC++ Var(warn_parentheses) Warning
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377 Warn about possibly missing parentheses
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378
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379 Wpmf-conversions
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380 C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning
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381 Warn when converting the type of pointers to member functions
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382
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383 Wpointer-arith
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384 C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning
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385 Warn about function pointer arithmetic
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386
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387 Wpointer-to-int-cast
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388 C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning
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389 Warn when a pointer is cast to an integer of a different size
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390
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391 Wpragmas
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392 C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning
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393 Warn about misuses of pragmas
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394
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395 Wprotocol
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396 ObjC ObjC++ Var(warn_protocol) Init(1) Warning
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397 Warn if inherited methods are unimplemented
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398
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399 Wredundant-decls
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400 C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning
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401 Warn about multiple declarations of the same object
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402
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403 Wreorder
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404 C++ ObjC++ Var(warn_reorder) Warning
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405 Warn when the compiler reorders code
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406
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407 Wreturn-type
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408 C ObjC C++ ObjC++ Var(warn_return_type) Warning
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409 Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++)
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410
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411 Wselector
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412 ObjC ObjC++ Var(warn_selector) Warning
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413 Warn if a selector has multiple methods
|
|
|
414
|
|
|
415 Wsequence-point
|
|
|
416 C ObjC C++ ObjC++ Var(warn_sequence_point) Warning
|
|
|
417 Warn about possible violations of sequence point rules
|
|
|
418
|
|
|
419 Wsign-compare
|
|
|
420 C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning
|
|
|
421 Warn about signed-unsigned comparisons
|
|
|
422
|
|
|
423 Wsign-promo
|
|
|
424 C++ ObjC++ Var(warn_sign_promo) Warning
|
|
|
425 Warn when overload promotes from unsigned to signed
|
|
|
426
|
|
|
427 Wstrict-null-sentinel
|
|
|
428 C++ ObjC++ Warning
|
|
|
429 Warn about uncasted NULL used as sentinel
|
|
|
430
|
|
|
431 Wstrict-prototypes
|
|
|
432 C ObjC Var(warn_strict_prototypes) Warning
|
|
|
433 Warn about unprototyped function declarations
|
|
|
434
|
|
|
435 Wstrict-selector-match
|
|
|
436 ObjC ObjC++ Var(warn_strict_selector_match) Warning
|
|
|
437 Warn if type signatures of candidate methods do not match exactly
|
|
|
438
|
|
|
439 Wsync-nand
|
|
|
440 C C++ Var(warn_sync_nand) Init(1) Warning
|
|
|
441 Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used
|
|
|
442
|
|
|
443 Wsynth
|
|
|
444 C++ ObjC++ Var(warn_synth) Warning
|
|
|
445 Deprecated. This switch has no effect
|
|
|
446
|
|
|
447 Wsystem-headers
|
|
|
448 C ObjC C++ ObjC++ Warning
|
|
|
449 ; Documented in common.opt
|
|
|
450
|
|
|
451 Wtraditional
|
|
|
452 C ObjC Var(warn_traditional) Warning
|
|
|
453 Warn about features not present in traditional C
|
|
|
454
|
|
|
455 Wtraditional-conversion
|
|
|
456 C ObjC Var(warn_traditional_conversion) Warning
|
|
|
457 Warn of prototypes causing type conversions different from what would happen in the absence of prototype
|
|
|
458
|
|
|
459 Wtrigraphs
|
|
|
460 C ObjC C++ ObjC++ Warning
|
|
|
461 Warn if trigraphs are encountered that might affect the meaning of the program
|
|
|
462
|
|
|
463 Wundeclared-selector
|
|
|
464 ObjC ObjC++ Var(warn_undeclared_selector) Warning
|
|
|
465 Warn about @selector()s without previously declared methods
|
|
|
466
|
|
|
467 Wundef
|
|
|
468 C ObjC C++ ObjC++ Warning
|
|
|
469 Warn if an undefined macro is used in an #if directive
|
|
|
470
|
|
|
471 Wunknown-pragmas
|
|
|
472 C ObjC C++ ObjC++ Warning
|
|
|
473 Warn about unrecognized pragmas
|
|
|
474
|
|
|
475 Wunused-macros
|
|
|
476 C ObjC C++ ObjC++ Warning
|
|
|
477 Warn about macros defined in the main file that are not used
|
|
|
478
|
|
|
479 Wvariadic-macros
|
|
|
480 C ObjC C++ ObjC++ Warning
|
|
|
481 Do not warn about using variadic macros when -pedantic
|
|
|
482
|
|
|
483 Wvla
|
|
|
484 C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning
|
|
|
485 Warn if a variable length array is used
|
|
|
486
|
|
|
487 Wvolatile-register-var
|
|
|
488 C ObjC C++ ObjC++ Var(warn_volatile_register_var) Warning
|
|
|
489 Warn when a register variable is declared volatile
|
|
|
490
|
|
|
491 Wwrite-strings
|
|
|
492 C ObjC C++ ObjC++ Var(warn_write_strings) Warning
|
|
|
493 In C++, nonzero means warn about deprecated conversion from string literals to `char *'. In C, similar warning, except that the conversion is of course not deprecated by the ISO C standard.
|
|
|
494
|
|
|
495 Wpointer-sign
|
|
|
496 C ObjC Var(warn_pointer_sign) Init(-1) Warning
|
|
|
497 Warn when a pointer differs in signedness in an assignment
|
|
|
498
|
|
|
499 ansi
|
|
|
500 C ObjC C++ ObjC++
|
|
|
501 A synonym for -std=c89 (for C) or -std=c++98 (for C++)
|
|
|
502
|
|
|
503 d
|
|
|
504 C ObjC C++ ObjC++ Joined
|
|
|
505 ; Documented in common.opt. FIXME - what about -dI, -dD, -dN and -dD?
|
|
|
506
|
|
|
507 faccess-control
|
|
|
508 C++ ObjC++
|
|
|
509 Enforce class member access control semantics
|
|
|
510
|
|
|
511 fall-virtual
|
|
|
512 C++ ObjC++
|
|
|
513
|
|
|
514 falt-external-templates
|
|
|
515 C++ ObjC++
|
|
|
516 Change when template instances are emitted
|
|
|
517
|
|
|
518 fasm
|
|
|
519 C ObjC C++ ObjC++
|
|
|
520 Recognize the \"asm\" keyword
|
|
|
521
|
|
|
522 fbuiltin
|
|
|
523 C ObjC C++ ObjC++
|
|
|
524 Recognize built-in functions
|
|
|
525
|
|
|
526 fbuiltin-
|
|
|
527 C ObjC C++ ObjC++ Joined
|
|
|
528
|
|
|
529 fcheck-new
|
|
|
530 C++ ObjC++
|
|
|
531 Check the return value of new
|
|
|
532
|
|
|
533 fcond-mismatch
|
|
|
534 C ObjC C++ ObjC++
|
|
|
535 Allow the arguments of the '?' operator to have different types
|
|
|
536
|
|
|
537 fconserve-space
|
|
|
538 C++ ObjC++
|
|
|
539 Reduce the size of object files
|
|
|
540
|
|
|
541 fconstant-string-class=
|
|
|
542 ObjC ObjC++ Joined
|
|
|
543 -fconst-string-class=<name> Use class <name> for constant strings
|
|
|
544
|
|
36
|
545 fdeduce-init-list
|
|
|
546 C++ ObjC++ Var(flag_deduce_init_list) Init(1)
|
|
|
547 -fno-deduce-init-list disable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list
|
|
|
548
|
|
0
|
549 fdefault-inline
|
|
|
550 C++ ObjC++
|
|
|
551 Inline member functions by default
|
|
|
552
|
|
|
553 fdirectives-only
|
|
|
554 C ObjC C++ ObjC++
|
|
|
555 Preprocess directives only.
|
|
|
556
|
|
|
557 fdollars-in-identifiers
|
|
|
558 C ObjC C++ ObjC++
|
|
|
559 Permit '$' as an identifier character
|
|
|
560
|
|
|
561 felide-constructors
|
|
|
562 C++ ObjC++
|
|
|
563
|
|
|
564 fenforce-eh-specs
|
|
|
565 C++ ObjC++
|
|
|
566 Generate code to check exception specifications
|
|
|
567
|
|
|
568 fenum-int-equiv
|
|
|
569 C++ ObjC++
|
|
|
570
|
|
|
571 fexec-charset=
|
|
|
572 C ObjC C++ ObjC++ Joined RejectNegative
|
|
|
573 -fexec-charset=<cset> Convert all strings and character constants to character set <cset>
|
|
|
574
|
|
|
575 fextended-identifiers
|
|
|
576 C ObjC C++ ObjC++
|
|
|
577 Permit universal character names (\\u and \\U) in identifiers
|
|
|
578
|
|
|
579 finput-charset=
|
|
|
580 C ObjC C++ ObjC++ Joined RejectNegative
|
|
|
581 -finput-charset=<cset> Specify the default character set for source files
|
|
|
582
|
|
|
583
|
|
|
584 fexternal-templates
|
|
|
585 C++ ObjC++
|
|
|
586
|
|
|
587 ffor-scope
|
|
|
588 C++ ObjC++
|
|
|
589 Scope of for-init-statement variables is local to the loop
|
|
|
590
|
|
|
591 ffreestanding
|
|
|
592 C ObjC C++ ObjC++
|
|
|
593 Do not assume that standard C libraries and \"main\" exist
|
|
|
594
|
|
|
595 fgnu-keywords
|
|
|
596 C++ ObjC++
|
|
|
597 Recognize GNU-defined keywords
|
|
|
598
|
|
|
599 fgnu-runtime
|
|
|
600 ObjC ObjC++
|
|
|
601 Generate code for GNU runtime environment
|
|
|
602
|
|
|
603 fgnu89-inline
|
|
|
604 C ObjC Var(flag_gnu89_inline) Init(-1)
|
|
|
605 Use traditional GNU semantics for inline functions
|
|
|
606
|
|
|
607 fguiding-decls
|
|
|
608 C++ ObjC++
|
|
|
609
|
|
|
610 fhandle-exceptions
|
|
|
611 C++ ObjC++ Optimization
|
|
|
612
|
|
|
613 fhonor-std
|
|
|
614 C++ ObjC++
|
|
|
615
|
|
|
616 fhosted
|
|
|
617 C ObjC
|
|
|
618 Assume normal C execution environment
|
|
|
619
|
|
|
620 fhuge-objects
|
|
|
621 C++ ObjC++
|
|
|
622 Enable support for huge objects
|
|
|
623
|
|
|
624 fimplement-inlines
|
|
|
625 C++ ObjC++
|
|
|
626 Export functions even if they can be inlined
|
|
|
627
|
|
|
628 fimplicit-inline-templates
|
|
|
629 C++ ObjC++
|
|
|
630 Emit implicit instantiations of inline templates
|
|
|
631
|
|
|
632 fimplicit-templates
|
|
|
633 C++ ObjC++
|
|
|
634 Emit implicit instantiations of templates
|
|
|
635
|
|
|
636 ffriend-injection
|
|
|
637 C++ ObjC++ Var(flag_friend_injection)
|
|
|
638 Inject friend functions into enclosing namespace
|
|
|
639
|
|
|
640 flabels-ok
|
|
|
641 C++ ObjC++
|
|
|
642
|
|
|
643 flax-vector-conversions
|
|
|
644 C ObjC C++ ObjC++
|
|
|
645 Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types.
|
|
|
646
|
|
|
647 fms-extensions
|
|
|
648 C ObjC C++ ObjC++
|
|
|
649 Don't warn about uses of Microsoft extensions
|
|
|
650
|
|
|
651 fname-mangling-version-
|
|
|
652 C++ ObjC++ Joined
|
|
|
653
|
|
|
654 fnew-abi
|
|
|
655 C++ ObjC++
|
|
|
656
|
|
|
657 fnext-runtime
|
|
|
658 ObjC ObjC++
|
|
|
659 Generate code for NeXT (Apple Mac OS X) runtime environment
|
|
|
660
|
|
|
661 fnil-receivers
|
|
|
662 ObjC ObjC++
|
|
|
663 Assume that receivers of Objective-C messages may be nil
|
|
|
664
|
|
|
665 fnonansi-builtins
|
|
|
666 C++ ObjC++
|
|
|
667
|
|
|
668 fnonnull-objects
|
|
|
669 C++ ObjC++
|
|
|
670
|
|
|
671 ; Generate special '- .cxx_construct' and '- .cxx_destruct' methods
|
|
|
672 ; to initialize any non-POD ivars in Objective-C++ classes.
|
|
|
673 fobjc-call-cxx-cdtors
|
|
|
674 ObjC++ Var(flag_objc_call_cxx_cdtors)
|
|
|
675 Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed
|
|
|
676
|
|
|
677 fobjc-direct-dispatch
|
|
|
678 ObjC ObjC++ Var(flag_objc_direct_dispatch)
|
|
|
679 Allow fast jumps to the message dispatcher
|
|
|
680
|
|
|
681 ; Nonzero means that we will allow new ObjC exception syntax (@throw,
|
|
|
682 ; @try, etc.) in source code.
|
|
|
683 fobjc-exceptions
|
|
|
684 ObjC ObjC++ Var(flag_objc_exceptions)
|
|
|
685 Enable Objective-C exception and synchronization syntax
|
|
|
686
|
|
|
687 fobjc-gc
|
|
|
688 ObjC ObjC++ Var(flag_objc_gc)
|
|
|
689 Enable garbage collection (GC) in Objective-C/Objective-C++ programs
|
|
|
690
|
|
|
691 ; Nonzero means that we generate NeXT setjmp based exceptions.
|
|
|
692 fobjc-sjlj-exceptions
|
|
|
693 ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1)
|
|
|
694 Enable Objective-C setjmp exception handling runtime
|
|
|
695
|
|
|
696 fopenmp
|
|
|
697 C ObjC C++ ObjC++ Var(flag_openmp)
|
|
|
698 Enable OpenMP (implies -frecursive in Fortran)
|
|
|
699
|
|
|
700 foperator-names
|
|
|
701 C++ ObjC++
|
|
|
702 Recognize C++ keywords like \"compl\" and \"xor\"
|
|
|
703
|
|
|
704 foptional-diags
|
|
|
705 C++ ObjC++
|
|
|
706 Enable optional diagnostics
|
|
|
707
|
|
|
708 fpch-deps
|
|
|
709 C ObjC C++ ObjC++
|
|
|
710
|
|
|
711 fpch-preprocess
|
|
|
712 C ObjC C++ ObjC++
|
|
|
713 Look for and use PCH files even when preprocessing
|
|
|
714
|
|
|
715 fpermissive
|
|
|
716 C++ ObjC++
|
|
|
717 Downgrade conformance errors to warnings
|
|
|
718
|
|
|
719 fpreprocessed
|
|
|
720 C ObjC C++ ObjC++
|
|
|
721 Treat the input file as already preprocessed
|
|
|
722
|
|
|
723 freplace-objc-classes
|
|
|
724 ObjC ObjC++
|
|
|
725 Used in Fix-and-Continue mode to indicate that object files may be swapped in at runtime
|
|
|
726
|
|
|
727 frepo
|
|
|
728 C++ ObjC++
|
|
|
729 Enable automatic template instantiation
|
|
|
730
|
|
|
731 frtti
|
|
|
732 C++ ObjC++ Optimization
|
|
|
733 Generate run time type descriptor information
|
|
|
734
|
|
|
735 fshort-double
|
|
|
736 C ObjC C++ ObjC++ Optimization
|
|
|
737 Use the same size for double as for float
|
|
|
738
|
|
|
739 fshort-enums
|
|
|
740 C ObjC C++ ObjC++ Optimization
|
|
|
741 Use the narrowest integer type possible for enumeration types
|
|
|
742
|
|
|
743 fshort-wchar
|
|
|
744 C ObjC C++ ObjC++ Optimization
|
|
|
745 Force the underlying type for \"wchar_t\" to be \"unsigned short\"
|
|
|
746
|
|
|
747 fsigned-bitfields
|
|
|
748 C ObjC C++ ObjC++
|
|
|
749 When \"signed\" or \"unsigned\" is not given make the bitfield signed
|
|
|
750
|
|
|
751 fsigned-char
|
|
|
752 C ObjC C++ ObjC++
|
|
|
753 Make \"char\" signed by default
|
|
|
754
|
|
|
755 fsquangle
|
|
|
756 C++ ObjC++
|
|
|
757
|
|
|
758 fstats
|
|
|
759 C++ ObjC++
|
|
|
760 Display statistics accumulated during compilation
|
|
|
761
|
|
|
762 fstrict-prototype
|
|
|
763 C++ ObjC++
|
|
|
764
|
|
|
765 ftabstop=
|
|
|
766 C ObjC C++ ObjC++ Joined RejectNegative UInteger
|
|
|
767 -ftabstop=<number> Distance between tab stops for column reporting
|
|
|
768
|
|
|
769 ftemplate-depth-
|
|
|
770 C++ ObjC++ Joined RejectNegative UInteger
|
|
|
771 -ftemplate-depth-<number> Specify maximum template instantiation depth
|
|
|
772
|
|
|
773 fthis-is-variable
|
|
|
774 C++ ObjC++
|
|
|
775
|
|
|
776 fthreadsafe-statics
|
|
|
777 C++ ObjC++ Optimization
|
|
|
778 -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics
|
|
|
779
|
|
|
780 funsigned-bitfields
|
|
|
781 C ObjC C++ ObjC++
|
|
|
782 When \"signed\" or \"unsigned\" is not given make the bitfield unsigned
|
|
|
783
|
|
|
784 funsigned-char
|
|
|
785 C ObjC C++ ObjC++
|
|
|
786 Make \"char\" unsigned by default
|
|
|
787
|
|
|
788 fuse-cxa-atexit
|
|
|
789 C++ ObjC++
|
|
|
790 Use __cxa_atexit to register destructors
|
|
|
791
|
|
|
792 fuse-cxa-get-exception-ptr
|
|
|
793 C++ ObjC++
|
|
|
794 Use __cxa_get_exception_ptr in exception handling
|
|
|
795
|
|
|
796 fvisibility-inlines-hidden
|
|
|
797 C++ ObjC++
|
|
|
798 Marks all inlined methods as having hidden visibility
|
|
|
799
|
|
|
800 fvisibility-ms-compat
|
|
|
801 C++ ObjC++ Var(flag_visibility_ms_compat)
|
|
|
802 Changes visibility to match Microsoft Visual Studio by default
|
|
|
803
|
|
|
804 fvtable-gc
|
|
|
805 C++ ObjC++
|
|
|
806 Discard unused virtual functions
|
|
|
807
|
|
|
808 fvtable-thunks
|
|
|
809 C++ ObjC++
|
|
|
810 Implement vtables using thunks
|
|
|
811
|
|
|
812 fweak
|
|
|
813 C++ ObjC++
|
|
|
814 Emit common-like symbols as weak symbols
|
|
|
815
|
|
|
816 fwide-exec-charset=
|
|
|
817 C ObjC C++ ObjC++ Joined RejectNegative
|
|
|
818 -fwide-exec-charset=<cset> Convert all wide strings and character constants to character set <cset>
|
|
|
819
|
|
|
820 fworking-directory
|
|
|
821 C ObjC C++ ObjC++
|
|
|
822 Generate a #line directive pointing at the current working directory
|
|
|
823
|
|
|
824 fxref
|
|
|
825 C++ ObjC++
|
|
|
826 Emit cross referencing information
|
|
|
827
|
|
|
828 fzero-link
|
|
|
829 ObjC ObjC++
|
|
|
830 Generate lazy class lookup (via objc_getClass()) for use in Zero-Link mode
|
|
|
831
|
|
|
832 gen-decls
|
|
|
833 ObjC ObjC++
|
|
|
834 Dump declarations to a .decl file
|
|
|
835
|
|
|
836 femit-struct-debug-baseonly
|
|
|
837 C ObjC C++ ObjC++
|
|
|
838 -femit-struct-debug-baseonly Aggressive reduced debug info for structs
|
|
|
839
|
|
|
840 femit-struct-debug-reduced
|
|
|
841 C ObjC C++ ObjC++
|
|
|
842 -femit-struct-debug-reduced Conservative reduced debug info for structs
|
|
|
843
|
|
|
844 femit-struct-debug-detailed=
|
|
|
845 C ObjC C++ ObjC++ Joined
|
|
|
846 -femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs
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|
|
847
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|
848 idirafter
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|
|
849 C ObjC C++ ObjC++ Joined Separate
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|
|
850 -idirafter <dir> Add <dir> to the end of the system include path
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|
|
851
|
|
|
852 imacros
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|
|
853 C ObjC C++ ObjC++ Joined Separate
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|
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854 -imacros <file> Accept definition of macros in <file>
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|
855
|
|
|
856 imultilib
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|
|
857 C ObjC C++ ObjC++ Joined Separate
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|
|
858 -imultilib <dir> Set <dir> to be the multilib include subdirectory
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|
859
|
|
|
860 include
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|
|
861 C ObjC C++ ObjC++ Joined Separate
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|
|
862 -include <file> Include the contents of <file> before other files
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|
|
863
|
|
|
864 iprefix
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|
|
865 C ObjC C++ ObjC++ Joined Separate
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|
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866 -iprefix <path> Specify <path> as a prefix for next two options
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|
|
867
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|
|
868 isysroot
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|
|
869 C ObjC C++ ObjC++ Joined Separate
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|
|
870 -isysroot <dir> Set <dir> to be the system root directory
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|
|
871
|
|
|
872 isystem
|
|
|
873 C ObjC C++ ObjC++ Joined Separate
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|
|
874 -isystem <dir> Add <dir> to the start of the system include path
|
|
|
875
|
|
|
876 iquote
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|
|
877 C ObjC C++ ObjC++ Joined Separate
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|
|
878 -iquote <dir> Add <dir> to the end of the quote include path
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|
879
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|
|
880 iwithprefix
|
|
|
881 C ObjC C++ ObjC++ Joined Separate
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|
|
882 -iwithprefix <dir> Add <dir> to the end of the system include path
|
|
|
883
|
|
|
884 iwithprefixbefore
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|
|
885 C ObjC C++ ObjC++ Joined Separate
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|
|
886 -iwithprefixbefore <dir> Add <dir> to the end of the main include path
|
|
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887
|
|
|
888 lang-asm
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|
|
889 C Undocumented
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|
|
890
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|
|
891 lang-objc
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892 C ObjC C++ ObjC++ Undocumented
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|
|
893
|
|
|
894 nostdinc
|
|
|
895 C ObjC C++ ObjC++
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|
|
896 Do not search standard system include directories (those specified with -isystem will still be used)
|
|
|
897
|
|
|
898 nostdinc++
|
|
|
899 C++ ObjC++
|
|
|
900 Do not search standard system include directories for C++
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|
|
901
|
|
|
902 o
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|
|
903 C ObjC C++ ObjC++ Joined Separate
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904 ; Documented in common.opt
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905
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|
|
906 pedantic
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|
|
907 C ObjC C++ ObjC++
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|
|
908 ; Documented in common.opt
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|
|
909
|
|
|
910 pedantic-errors
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|
|
911 C ObjC C++ ObjC++
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|
|
912 ; Documented in common.opt
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|
|
913
|
|
|
914 print-objc-runtime-info
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|
|
915 ObjC ObjC++
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|
|
916 Generate C header of platform-specific features
|
|
|
917
|
|
|
918 print-pch-checksum
|
|
|
919 C ObjC C++ ObjC++
|
|
|
920 Print a checksum of the executable for PCH validity checking, and stop
|
|
|
921
|
|
|
922 remap
|
|
|
923 C ObjC C++ ObjC++
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|
|
924 Remap file names when including files
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|
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925
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|
|
926 std=c++98
|
|
|
927 C++ ObjC++
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|
|
928 Conform to the ISO 1998 C++ standard
|
|
|
929
|
|
|
930 std=c++0x
|
|
|
931 C++ ObjC++
|
|
|
932 Conform to the ISO 1998 C++ standard, with extensions that are likely to
|
|
|
933 become a part of the upcoming ISO C++ standard, dubbed C++0x. Note that the
|
|
|
934 extensions enabled by this mode are experimental and may be removed in
|
|
|
935 future releases of GCC.
|
|
|
936
|
|
|
937 std=c89
|
|
|
938 C ObjC
|
|
|
939 Conform to the ISO 1990 C standard
|
|
|
940
|
|
|
941 std=c99
|
|
|
942 C ObjC
|
|
|
943 Conform to the ISO 1999 C standard
|
|
|
944
|
|
|
945 std=c9x
|
|
|
946 C ObjC
|
|
|
947 Deprecated in favor of -std=c99
|
|
|
948
|
|
|
949 std=gnu++98
|
|
|
950 C++ ObjC++
|
|
|
951 Conform to the ISO 1998 C++ standard with GNU extensions
|
|
|
952
|
|
|
953 std=gnu++0x
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|
|
954 C++ ObjC++
|
|
|
955 Conform to the ISO 1998 C++ standard, with GNU extensions and
|
|
|
956 extensions that are likely to become a part of the upcoming ISO C++
|
|
|
957 standard, dubbed C++0x. Note that the extensions enabled by this mode
|
|
|
958 are experimental and may be removed in future releases of GCC.
|
|
|
959
|
|
|
960 std=gnu89
|
|
|
961 C ObjC
|
|
|
962 Conform to the ISO 1990 C standard with GNU extensions
|
|
|
963
|
|
|
964 std=gnu99
|
|
|
965 C ObjC
|
|
|
966 Conform to the ISO 1999 C standard with GNU extensions
|
|
|
967
|
|
|
968 std=gnu9x
|
|
|
969 C ObjC
|
|
|
970 Deprecated in favor of -std=gnu99
|
|
|
971
|
|
|
972 std=iso9899:1990
|
|
|
973 C ObjC
|
|
|
974 Conform to the ISO 1990 C standard
|
|
|
975
|
|
|
976 std=iso9899:199409
|
|
|
977 C ObjC
|
|
|
978 Conform to the ISO 1990 C standard as amended in 1994
|
|
|
979
|
|
|
980 std=iso9899:1999
|
|
|
981 C ObjC
|
|
|
982 Conform to the ISO 1999 C standard
|
|
|
983
|
|
|
984 std=iso9899:199x
|
|
|
985 C ObjC
|
|
|
986 Deprecated in favor of -std=iso9899:1999
|
|
|
987
|
|
|
988 traditional-cpp
|
|
|
989 C ObjC C++ ObjC++
|
|
|
990 Enable traditional preprocessing
|
|
|
991
|
|
|
992 trigraphs
|
|
|
993 C ObjC C++ ObjC++
|
|
|
994 -trigraphs Support ISO C trigraphs
|
|
|
995
|
|
|
996 undef
|
|
|
997 C ObjC C++ ObjC++
|
|
|
998 Do not predefine system-specific and GCC-specific macros
|
|
|
999
|
|
|
1000 v
|
|
|
1001 Common C ObjC C++ ObjC++
|
|
|
1002 Enable verbose output
|
|
|
1003
|
|
|
1004 w
|
|
|
1005 C ObjC C++ ObjC++
|
|
|
1006 ; Documented in common.opt
|
|
|
1007
|
|
|
1008 ; This comment is to ensure we retain the blank line above.
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