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builder: pass -std=gnu99
to the C backend under linux (#12236)
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@ -243,7 +243,7 @@ see also `v help build`.
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compiler, on the command line, without writing an .rsp file first.
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-no-std
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By default, V passes -std=c99 to the C backend, but some compilers do
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By default, V passes -std=gnu99(linux)/-std=c99 to the C backend, but some compilers do
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not support that, even though they may be able to compile the produced
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code, or have other options that can be tuned to allow it.
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Passing -no-std will remove that flag, and you can then use -cflags ''
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@ -162,7 +162,11 @@ fn (mut v Builder) setup_ccompiler_options(ccompiler string) {
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// arguments for the C compiler
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ccoptions.args = [v.pref.cflags]
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if !v.pref.no_std {
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ccoptions.args << '-std=c99 -D_DEFAULT_SOURCE'
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if v.pref.os == .linux {
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ccoptions.args << '-std=gnu99 -D_DEFAULT_SOURCE'
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} else {
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ccoptions.args << '-std=c99 -D_DEFAULT_SOURCE'
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}
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}
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ccoptions.wargs = [
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'-Wall',
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@ -176,7 +176,7 @@ pub mut:
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fatal_errors bool // unconditionally exit after the first error with exit(1)
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reuse_tmpc bool // do not use random names for .tmp.c and .tmp.c.rsp files, and do not remove them
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no_rsp bool // when true, pass C backend options directly on the CLI (do not use `.rsp` files for them, some older C compilers do not support them)
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no_std bool // when true, do not pass -std=c99 to the C backend
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no_std bool // when true, do not pass -std=gnu99(linux)/-std=c99 to the C backend
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use_color ColorOutput // whether the warnings/errors should use ANSI color escapes.
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no_parallel bool
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is_vweb bool // skip _ var warning in templates
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