diff options
Diffstat (limited to 'compiler/extccomp.nim')
| -rw-r--r-- | compiler/extccomp.nim | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/compiler/extccomp.nim b/compiler/extccomp.nim index 0faf3230b..fe48093dd 100644 --- a/compiler/extccomp.nim +++ b/compiler/extccomp.nim @@ -613,6 +613,34 @@ proc getCompilerExe(conf: ConfigRef; compiler: TSystemCC; cfile: AbsoluteFile): "Compiler '$1' doesn't support the requested target" % CC[compiler].name) +proc ccHasSaneOverflow*(conf: ConfigRef): bool = + if conf.cCompiler == ccGcc: + result = false # assume an old or crappy GCC + var exe = getConfigVar(conf, conf.cCompiler, ".exe") + if exe.len == 0: exe = CC[conf.cCompiler].compilerExe + let (s, exitCode) = try: execCmdEx(exe & " --version") except: ("", 1) + if exitCode == 0: + var i = 0 + var j = 0 + # the version is the last part of the first line: + while i < s.len and s[i] != '\n': + if s[i] in {' ', '\t'}: j = i+1 + inc i + if j > 0: + var major = 0 + while j < s.len and s[j] in {'0'..'9'}: + major = major * 10 + (ord(s[j]) - ord('0')) + inc j + if i < s.len and s[j] == '.': inc j + while j < s.len and s[j] in {'0'..'9'}: + inc j + if j+1 < s.len and s[j] == '.' and s[j+1] in {'0'..'9'}: + # we found a third version number, chances are high + # we really parsed the version: + result = major >= 5 + else: + result = conf.cCompiler == ccCLang + proc getLinkerExe(conf: ConfigRef; compiler: TSystemCC): string = result = if CC[compiler].linkerExe.len > 0: CC[compiler].linkerExe elif optMixedMode in conf.globalOptions and conf.cmd != cmdCompileToCpp: CC[compiler].cppCompiler |