v.pref, v.builder: support `-no-std` (skips passing `-std=c99` to the C backend)
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@ -237,6 +237,13 @@ see also `v help build`.
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you use -no-rsp, V will pass the C compiler options directly to the C
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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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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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to pass the other options for your specific C compiler.
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-assert aborts
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Call abort() after an assertion failure. Debuggers usually
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install signal handlers for SIGABRT, so your program will stop and you
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@ -186,7 +186,10 @@ fn (mut v Builder) setup_ccompiler_options(ccompiler string) {
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mut debug_options := ['-g']
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mut optimization_options := ['-O2']
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// arguments for the C compiler
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ccoptions.args = [v.pref.cflags, '-std=gnu99']
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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'
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}
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ccoptions.wargs = [
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'-Wall',
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'-Wextra',
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@ -173,6 +173,7 @@ 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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use_color ColorOutput // whether the warnings/errors should use ANSI color escapes.
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is_parallel bool
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error_limit int
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@ -478,6 +479,9 @@ pub fn parse_args(known_external_commands []string, args []string) (&Preferences
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'-no-rsp' {
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res.no_rsp = true
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}
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'-no-std' {
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res.no_std = true
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}
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'-keepc' {
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res.reuse_tmpc = true
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}
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