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| 128 | .rm #[ #] #H #V #F C
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| 129 | .\" ========================================================================
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| 130 | .\"
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| 131 | .IX Title "TCC 1"
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| 132 | .TH TCC 1 "2018-01-07" "0.9.27" "Tiny C Compiler"
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| 133 | .SH "NAME"
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| 134 | tcc \- Tiny C Compiler
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| 135 | .SH "SYNOPSIS"
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| 136 | .IX Header "SYNOPSIS"
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| 137 | usage: tcc [options] [\fIinfile1\fR \fIinfile2\fR...] [\fB\-run\fR \fIinfile\fR \fIargs\fR...]
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| 138 | .SH "DESCRIPTION"
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| 139 | .IX Header "DESCRIPTION"
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| 140 | \&\s-1TCC\s0 options are a very much like gcc options. The main difference is that \s-1TCC\s0
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| 141 | can also execute directly the resulting program and give it runtime
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| 142 | arguments.
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| 143 | .PP
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| 144 | Here are some examples to understand the logic:
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| 145 | .ie n .IP """\f(CBtcc \-run a.c\f(CW""" 4
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| 146 | .el .IP "\f(CW\f(CBtcc \-run a.c\f(CW\fR" 4
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| 147 | .IX Item "tcc -run a.c"
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| 148 | Compile \fIa.c\fR and execute it directly
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| 149 | .ie n .IP """\f(CBtcc \-run a.c arg1\f(CW""" 4
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| 150 | .el .IP "\f(CW\f(CBtcc \-run a.c arg1\f(CW\fR" 4
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| 151 | .IX Item "tcc -run a.c arg1"
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| 152 | Compile a.c and execute it directly. arg1 is given as first argument to
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| 153 | the \f(CW\*(C`main()\*(C'\fR of a.c.
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| 154 | .ie n .IP """\f(CBtcc a.c \-run b.c arg1\f(CW""" 4
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| 155 | .el .IP "\f(CW\f(CBtcc a.c \-run b.c arg1\f(CW\fR" 4
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| 156 | .IX Item "tcc a.c -run b.c arg1"
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| 157 | Compile \fIa.c\fR and \fIb.c\fR, link them together and execute them. arg1 is given
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| 158 | as first argument to the \f(CW\*(C`main()\*(C'\fR of the resulting program.
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| 159 | .ie n .IP """\f(CBtcc \-o myprog a.c b.c\f(CW""" 4
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| 160 | .el .IP "\f(CW\f(CBtcc \-o myprog a.c b.c\f(CW\fR" 4
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| 161 | .IX Item "tcc -o myprog a.c b.c"
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| 162 | Compile \fIa.c\fR and \fIb.c\fR, link them and generate the executable \fImyprog\fR.
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| 163 | .ie n .IP """\f(CBtcc \-o myprog a.o b.o\f(CW""" 4
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| 164 | .el .IP "\f(CW\f(CBtcc \-o myprog a.o b.o\f(CW\fR" 4
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| 165 | .IX Item "tcc -o myprog a.o b.o"
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| 166 | link \fIa.o\fR and \fIb.o\fR together and generate the executable \fImyprog\fR.
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| 167 | .ie n .IP """\f(CBtcc \-c a.c\f(CW""" 4
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| 168 | .el .IP "\f(CW\f(CBtcc \-c a.c\f(CW\fR" 4
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| 169 | .IX Item "tcc -c a.c"
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| 170 | Compile \fIa.c\fR and generate object file \fIa.o\fR.
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| 171 | .ie n .IP """\f(CBtcc \-c asmfile.S\f(CW""" 4
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| 172 | .el .IP "\f(CW\f(CBtcc \-c asmfile.S\f(CW\fR" 4
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| 173 | .IX Item "tcc -c asmfile.S"
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| 174 | Preprocess with C preprocess and assemble \fIasmfile.S\fR and generate
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| 175 | object file \fIasmfile.o\fR.
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| 176 | .ie n .IP """\f(CBtcc \-c asmfile.s\f(CW""" 4
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| 177 | .el .IP "\f(CW\f(CBtcc \-c asmfile.s\f(CW\fR" 4
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| 178 | .IX Item "tcc -c asmfile.s"
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| 179 | Assemble (but not preprocess) \fIasmfile.s\fR and generate object file
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| 180 | \&\fIasmfile.o\fR.
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| 181 | .ie n .IP """\f(CBtcc \-r \-o ab.o a.c b.c\f(CW""" 4
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| 182 | .el .IP "\f(CW\f(CBtcc \-r \-o ab.o a.c b.c\f(CW\fR" 4
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| 183 | .IX Item "tcc -r -o ab.o a.c b.c"
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| 184 | Compile \fIa.c\fR and \fIb.c\fR, link them together and generate the object file \fIab.o\fR.
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| 185 | .PP
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| 186 | Scripting:
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| 187 | .PP
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| 188 | \&\s-1TCC\s0 can be invoked from \fIscripts\fR, just as shell scripts. You just
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| 189 | need to add \f(CW\*(C`#!/usr/local/bin/tcc \-run\*(C'\fR at the start of your C source:
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| 190 | .PP
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| 191 | .Vb 2
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| 192 | \& #!/usr/local/bin/tcc -run
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| 193 | \& #include <stdio.h>
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| 194 | .Ve
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| 195 | .PP
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| 196 | .Vb 5
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| 197 | \& int main()
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| 198 | \& {
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| 199 | \& printf("Hello World\en");
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| 200 | \& return 0;
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| 201 | \& }
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| 202 | .Ve
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| 203 | .PP
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| 204 | \&\s-1TCC\s0 can read C source code from \fIstandard input\fR when \fB\-\fR is used in
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| 205 | place of \fBinfile\fR. Example:
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| 206 | .PP
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| 207 | .Vb 1
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| 208 | \& echo 'main(){puts("hello");}' | tcc -run -
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| 209 | .Ve
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| 210 | .SH "OPTIONS"
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| 211 | .IX Header "OPTIONS"
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| 212 | .IP "\fB\-c\fR" 4
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| 213 | .IX Item "-c"
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| 214 | Generate an object file.
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| 215 | .IP "\fB\-o outfile\fR" 4
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| 216 | .IX Item "-o outfile"
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| 217 | Put object file, executable, or dll into output file \fIoutfile\fR.
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| 218 | .IP "\fB\-run source [args...]\fR" 4
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| 219 | .IX Item "-run source [args...]"
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| 220 | Compile file \fIsource\fR and run it with the command line arguments
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| 221 | \&\fIargs\fR. In order to be able to give more than one argument to a
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| 222 | script, several \s-1TCC\s0 options can be given \fIafter\fR the
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| 223 | \&\fB\-run\fR option, separated by spaces:
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| 224 | .Sp
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| 225 | .Vb 1
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| 226 | \& tcc "-run -L/usr/X11R6/lib -lX11" ex4.c
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| 227 | .Ve
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| 228 | .Sp
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| 229 | In a script, it gives the following header:
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| 230 | .Sp
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| 231 | .Vb 1
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| 232 | \& #!/usr/local/bin/tcc -run -L/usr/X11R6/lib -lX11
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| 233 | .Ve
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| 234 | .IP "\fB\-v\fR" 4
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| 235 | .IX Item "-v"
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| 236 | Display \s-1TCC\s0 version.
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| 237 | .IP "\fB\-vv\fR" 4
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| 238 | .IX Item "-vv"
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| 239 | Show included files. As sole argument, print search dirs. \-vvv shows tries too.
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| 240 | .IP "\fB\-bench\fR" 4
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| 241 | .IX Item "-bench"
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| 242 | Display compilation statistics.
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| 243 | .PP
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| 244 | Preprocessor options:
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| 245 | .IP "\fB\-Idir\fR" 4
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| 246 | .IX Item "-Idir"
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| 247 | Specify an additional include path. Include paths are searched in the
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| 248 | order they are specified.
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| 249 | .Sp
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| 250 | System include paths are always searched after. The default system
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| 251 | include paths are: \fI/usr/local/include\fR, \fI/usr/include\fR
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| 252 | and \fIPREFIX/lib/tcc/include\fR. (\fI\s-1PREFIX\s0\fR is usually
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| 253 | \&\fI/usr\fR or \fI/usr/local\fR).
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| 254 | .IP "\fB\-Dsym[=val]\fR" 4
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| 255 | .IX Item "-Dsym[=val]"
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| 256 | Define preprocessor symbol \fBsym\fR to
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| 257 | val. If val is not present, its value is \fB1\fR. Function-like macros can
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| 258 | also be defined: \fB\-DF(a)=a+1\fR
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| 259 | .IP "\fB\-Usym\fR" 4
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| 260 | .IX Item "-Usym"
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| 261 | Undefine preprocessor symbol \fBsym\fR.
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| 262 | .IP "\fB\-E\fR" 4
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| 263 | .IX Item "-E"
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| 264 | Preprocess only, to stdout or file (with \-o).
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| 265 | .PP
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| 266 | Compilation flags:
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| 267 | .PP
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| 268 | Note: each of the following options has a negative form beginning with
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| 269 | \&\fB\-fno\-\fR.
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| 270 | .IP "\fB\-funsigned\-char\fR" 4
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| 271 | .IX Item "-funsigned-char"
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| 272 | Let the \f(CW\*(C`char\*(C'\fR type be unsigned.
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| 273 | .IP "\fB\-fsigned\-char\fR" 4
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| 274 | .IX Item "-fsigned-char"
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| 275 | Let the \f(CW\*(C`char\*(C'\fR type be signed.
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| 276 | .IP "\fB\-fno\-common\fR" 4
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| 277 | .IX Item "-fno-common"
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| 278 | Do not generate common symbols for uninitialized data.
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| 279 | .IP "\fB\-fleading\-underscore\fR" 4
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| 280 | .IX Item "-fleading-underscore"
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| 281 | Add a leading underscore at the beginning of each C symbol.
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| 282 | .IP "\fB\-fms\-extensions\fR" 4
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| 283 | .IX Item "-fms-extensions"
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| 284 | Allow a \s-1MS\s0 C compiler extensions to the language. Currently this
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| 285 | assumes a nested named structure declaration without an identifier
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| 286 | behaves like an unnamed one.
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| 287 | .IP "\fB\-fdollars\-in\-identifiers\fR" 4
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| 288 | .IX Item "-fdollars-in-identifiers"
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| 289 | Allow dollar signs in identifiers
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| 290 | .PP
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| 291 | Warning options:
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| 292 | .IP "\fB\-w\fR" 4
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| 293 | .IX Item "-w"
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| 294 | Disable all warnings.
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| 295 | .PP
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| 296 | Note: each of the following warning options has a negative form beginning with
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| 297 | \&\fB\-Wno\-\fR.
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| 298 | .IP "\fB\-Wimplicit\-function\-declaration\fR" 4
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| 299 | .IX Item "-Wimplicit-function-declaration"
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| 300 | Warn about implicit function declaration.
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| 301 | .IP "\fB\-Wunsupported\fR" 4
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| 302 | .IX Item "-Wunsupported"
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| 303 | Warn about unsupported \s-1GCC\s0 features that are ignored by \s-1TCC\s0.
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| 304 | .IP "\fB\-Wwrite\-strings\fR" 4
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| 305 | .IX Item "-Wwrite-strings"
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| 306 | Make string constants be of type \f(CW\*(C`const char *\*(C'\fR instead of \f(CW\*(C`char
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| 307 | *\*(C'\fR.
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| 308 | .IP "\fB\-Werror\fR" 4
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| 309 | .IX Item "-Werror"
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| 310 | Abort compilation if warnings are issued.
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| 311 | .IP "\fB\-Wall\fR" 4
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| 312 | .IX Item "-Wall"
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| 313 | Activate all warnings, except \fB\-Werror\fR, \fB\-Wunusupported\fR and
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| 314 | \&\fB\-Wwrite\-strings\fR.
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| 315 | .PP
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| 316 | Linker options:
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| 317 | .IP "\fB\-Ldir\fR" 4
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| 318 | .IX Item "-Ldir"
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| 319 | Specify an additional static library path for the \fB\-l\fR option. The
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| 320 | default library paths are \fI/usr/local/lib\fR, \fI/usr/lib\fR and \fI/lib\fR.
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| 321 | .IP "\fB\-lxxx\fR" 4
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| 322 | .IX Item "-lxxx"
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| 323 | Link your program with dynamic library libxxx.so or static library
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| 324 | libxxx.a. The library is searched in the paths specified by the
|
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| 325 | \&\fB\-L\fR option and \fB\s-1LIBRARY_PATH\s0\fR variable.
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| 326 | .IP "\fB\-Bdir\fR" 4
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| 327 | .IX Item "-Bdir"
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| 328 | Set the path where the tcc internal libraries (and include files) can be
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| 329 | found (default is \fIPREFIX/lib/tcc\fR).
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| 330 | .IP "\fB\-shared\fR" 4
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| 331 | .IX Item "-shared"
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| 332 | Generate a shared library instead of an executable.
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| 333 | .IP "\fB\-soname name\fR" 4
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| 334 | .IX Item "-soname name"
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| 335 | set name for shared library to be used at runtime
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| 336 | .IP "\fB\-static\fR" 4
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| 337 | .IX Item "-static"
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| 338 | Generate a statically linked executable (default is a shared linked
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| 339 | executable).
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| 340 | .IP "\fB\-rdynamic\fR" 4
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| 341 | .IX Item "-rdynamic"
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| 342 | Export global symbols to the dynamic linker. It is useful when a library
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| 343 | opened with \f(CW\*(C`dlopen()\*(C'\fR needs to access executable symbols.
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| 344 | .IP "\fB\-r\fR" 4
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| 345 | .IX Item "-r"
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|---|
| 346 | Generate an object file combining all input files.
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| 347 | .IP "\fB\-Wl,\-rpath=path\fR" 4
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| 348 | .IX Item "-Wl,-rpath=path"
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| 349 | Put custom search path for dynamic libraries into executable.
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| 350 | .IP "\fB\-Wl,\-\-enable\-new\-dtags\fR" 4
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| 351 | .IX Item "-Wl,--enable-new-dtags"
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| 352 | When putting a custom search path for dynamic libraries into the executable,
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| 353 | create the new \s-1ELF\s0 dynamic tag \s-1DT_RUNPATH\s0 instead of the old legacy \s-1DT_RPATH\s0.
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| 354 | .IP "\fB\-Wl,\-\-oformat=fmt\fR" 4
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|---|
| 355 | .IX Item "-Wl,--oformat=fmt"
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| 356 | Use \fIfmt\fR as output format. The supported output formats are:
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| 357 | .RS 4
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|---|
| 358 | .ie n .IP """elf32\-i386""" 4
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| 359 | .el .IP "\f(CWelf32\-i386\fR" 4
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|---|
| 360 | .IX Item "elf32-i386"
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|---|
| 361 | \&\s-1ELF\s0 output format (default)
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|---|
| 362 | .ie n .IP """binary""" 4
|
|---|
| 363 | .el .IP "\f(CWbinary\fR" 4
|
|---|
| 364 | .IX Item "binary"
|
|---|
| 365 | Binary image (only for executable output)
|
|---|
| 366 | .ie n .IP """coff""" 4
|
|---|
| 367 | .el .IP "\f(CWcoff\fR" 4
|
|---|
| 368 | .IX Item "coff"
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|---|
| 369 | \&\s-1COFF\s0 output format (only for executable output for TMS320C67xx target)
|
|---|
| 370 | .RE
|
|---|
| 371 | .RS 4
|
|---|
| 372 | .RE
|
|---|
| 373 | .IP "\fB\-Wl,\-subsystem=console/gui/wince/...\fR" 4
|
|---|
| 374 | .IX Item "-Wl,-subsystem=console/gui/wince/..."
|
|---|
| 375 | Set type for \s-1PE\s0 (Windows) executables.
|
|---|
| 376 | .IP "\fB\-Wl,\-[Ttext=# | section\-alignment=# | file\-alignment=# | image\-base=# | stack=#]\fR" 4
|
|---|
| 377 | .IX Item "-Wl,-[Ttext=# | section-alignment=# | file-alignment=# | image-base=# | stack=#]"
|
|---|
| 378 | Modify executable layout.
|
|---|
| 379 | .IP "\fB\-Wl,\-Bsymbolic\fR" 4
|
|---|
| 380 | .IX Item "-Wl,-Bsymbolic"
|
|---|
| 381 | Set \s-1DT_SYMBOLIC\s0 tag.
|
|---|
| 382 | .IP "\fB\-Wl,\-(no\-)whole\-archive\fR" 4
|
|---|
| 383 | .IX Item "-Wl,-(no-)whole-archive"
|
|---|
| 384 | Turn on/off linking of all objects in archives.
|
|---|
| 385 | .PP
|
|---|
| 386 | Debugger options:
|
|---|
| 387 | .IP "\fB\-g\fR" 4
|
|---|
| 388 | .IX Item "-g"
|
|---|
| 389 | Generate run time debug information so that you get clear run time
|
|---|
| 390 | error messages: \f(CW\*(C` test.c:68: in function 'test5()': dereferencing
|
|---|
| 391 | invalid pointer\*(C'\fR instead of the laconic \f(CW\*(C`Segmentation
|
|---|
| 392 | fault\*(C'\fR.
|
|---|
| 393 | .IP "\fB\-b\fR" 4
|
|---|
| 394 | .IX Item "-b"
|
|---|
| 395 | Generate additional support code to check
|
|---|
| 396 | memory allocations and array/pointer bounds. \fB\-g\fR is implied. Note
|
|---|
| 397 | that the generated code is slower and bigger in this case.
|
|---|
| 398 | .Sp
|
|---|
| 399 | Note: \fB\-b\fR is only available on i386 when using libtcc for the moment.
|
|---|
| 400 | .IP "\fB\-bt N\fR" 4
|
|---|
| 401 | .IX Item "-bt N"
|
|---|
| 402 | Display N callers in stack traces. This is useful with \fB\-g\fR or
|
|---|
| 403 | \&\fB\-b\fR.
|
|---|
| 404 | .PP
|
|---|
| 405 | Misc options:
|
|---|
| 406 | .IP "\fB\-MD\fR" 4
|
|---|
| 407 | .IX Item "-MD"
|
|---|
| 408 | Generate makefile fragment with dependencies.
|
|---|
| 409 | .IP "\fB\-MF depfile\fR" 4
|
|---|
| 410 | .IX Item "-MF depfile"
|
|---|
| 411 | Use \fIdepfile\fR as output for \-MD.
|
|---|
| 412 | .IP "\fB\-print\-search\-dirs\fR" 4
|
|---|
| 413 | .IX Item "-print-search-dirs"
|
|---|
| 414 | Print the configured installation directory and a list of library
|
|---|
| 415 | and include directories tcc will search.
|
|---|
| 416 | .IP "\fB\-dumpversion\fR" 4
|
|---|
| 417 | .IX Item "-dumpversion"
|
|---|
| 418 | Print version.
|
|---|
| 419 | .PP
|
|---|
| 420 | Target specific options:
|
|---|
| 421 | .IP "\fB\-mms\-bitfields\fR" 4
|
|---|
| 422 | .IX Item "-mms-bitfields"
|
|---|
| 423 | Use an algorithm for bitfield alignment consistent with \s-1MSVC\s0. Default is
|
|---|
| 424 | gcc's algorithm.
|
|---|
| 425 | .IP "\fB\-mfloat\-abi (\s-1ARM\s0 only)\fR" 4
|
|---|
| 426 | .IX Item "-mfloat-abi (ARM only)"
|
|---|
| 427 | Select the float \s-1ABI\s0. Possible values: \f(CW\*(C`softfp\*(C'\fR and \f(CW\*(C`hard\*(C'\fR
|
|---|
| 428 | .IP "\fB\-mno\-sse\fR" 4
|
|---|
| 429 | .IX Item "-mno-sse"
|
|---|
| 430 | Do not use sse registers on x86_64
|
|---|
| 431 | .IP "\fB\-m32, \-m64\fR" 4
|
|---|
| 432 | .IX Item "-m32, -m64"
|
|---|
| 433 | Pass command line to the i386/x86_64 cross compiler.
|
|---|
| 434 | .PP
|
|---|
| 435 | Note: \s-1GCC\s0 options \fB\-Ox\fR, \fB\-fx\fR and \fB\-mx\fR are
|
|---|
| 436 | ignored.
|
|---|
| 437 | .SH "ENVIRONMENT"
|
|---|
| 438 | .IX Header "ENVIRONMENT"
|
|---|
| 439 | Environment variables that affect how tcc operates.
|
|---|
| 440 | .IP "\fB\s-1CPATH\s0\fR" 4
|
|---|
| 441 | .IX Item "CPATH"
|
|---|
| 442 | .PD 0
|
|---|
| 443 | .IP "\fBC_INCLUDE_PATH\fR" 4
|
|---|
| 444 | .IX Item "C_INCLUDE_PATH"
|
|---|
| 445 | .PD
|
|---|
| 446 | A colon-separated list of directories searched for include files,
|
|---|
| 447 | directories given with \fB\-I\fR are searched first.
|
|---|
| 448 | .IP "\fB\s-1LIBRARY_PATH\s0\fR" 4
|
|---|
| 449 | .IX Item "LIBRARY_PATH"
|
|---|
| 450 | A colon-separated list of directories searched for libraries for the
|
|---|
| 451 | \&\fB\-l\fR option, directories given with \fB\-L\fR are searched first.
|
|---|
| 452 | .SH "SEE ALSO"
|
|---|
| 453 | .IX Header "SEE ALSO"
|
|---|
| 454 | \&\fIcpp\fR\|(1),
|
|---|
| 455 | \&\fIgcc\fR\|(1)
|
|---|
| 456 | .SH "AUTHOR"
|
|---|
| 457 | .IX Header "AUTHOR"
|
|---|
| 458 | Fabrice Bellard
|
|---|
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