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docs: change obsolete -show_c_cmd to -showcc and -keepc

pull/4684/head
Delyan Angelov 2020-05-02 19:01:43 +03:00
parent 02807aab43
commit dbbfb04e7c
2 changed files with 8 additions and 4 deletions
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10
doc/docs.md
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@ -1396,13 +1396,17 @@ Check out [socket.v for an example of calling C code from V](https://github.com/
To debug issues with the generated C code, you can pass these flags:
- `-cg` - produces a less optimized executable with more debug information in it.
- `-keep_c` - keep the generated C file, so your debugger can also use it.
- `-show_c_cmd` - prints the C command that is used to build the program.
- `-keepc` - keep the generated C file, so your debugger can also use it.
- `-showcc` - prints the C command that is used to build the program.
For best debugging experience, you can pass all of them at the same time: `v -cg -keep_c -pretty_c -show_c_cmd yourprogram.v` , then just run your debugger (gdb/lldb) or IDE with the produced executable `yourprogram`.
For best debugging experience, you can pass all of them at the same time: `v -cg -keepc -showcc yourprogram.v` , then just run your debugger (gdb/lldb) or IDE with the produced executable `yourprogram`.
If you just want to inspect the generated C code, without compiling it further, you can also use: `-o file.c`. This will make V produce the `file.c` then stop.
If you want to see the generated C source code for *just* a single C function, for example `main`, you can use: `-printfn main -o file.c` .
To see a detailed list of all flags that V supports, use `v help`, `v help build`, `v help build-c` .
## Compile time if
```v

2
vlib/v/builder/cc.v
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@ -550,7 +550,7 @@ fn (mut c Builder) cc_windows_cross() {
/*
if c.pref.build_mode != .build_module {
link_cmd := 'lld-link $obj_name $winroot/lib/libcmt.lib ' + '$winroot/lib/libucrt.lib $winroot/lib/kernel32.lib $winroot/lib/libvcruntime.lib ' + '$winroot/lib/uuid.lib'
if c.pref.show_c_cmd {
if c.pref.show_cc {
println(link_cmd)
}
if os.system(link_cmd) != 0 {