diff options
Diffstat (limited to 'gcc/opts-common.c')
| -rw-r--r-- | gcc/opts-common.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/gcc/opts-common.c b/gcc/opts-common.c index 04ae8d3..e5d0804 100644 --- a/gcc/opts-common.c +++ b/gcc/opts-common.c @@ -1810,8 +1810,14 @@ void prepend_xassembler_to_collect_as_options (const char *collect_as_options, jobserver_info::jobserver_info () { + /* Traditionally, GNU make uses opened pipes for jobserver-auth, + e.g. --jobserver-auth=3,4. + Starting with GNU make 4.4, one can use --jobserver-style=fifo + and then named pipe is used: --jobserver-auth=fifo:/tmp/hcsparta. */ + /* Detect jobserver and drop it if it's not working. */ string js_needle = "--jobserver-auth="; + string fifo_prefix = "fifo:"; const char *envval = getenv ("MAKEFLAGS"); if (envval != NULL) @@ -1820,8 +1826,15 @@ jobserver_info::jobserver_info () size_t n = makeflags.rfind (js_needle); if (n != string::npos) { - if (sscanf (makeflags.c_str () + n + js_needle.size (), - "%d,%d", &rfd, &wfd) == 2 + string ending = makeflags.substr (n + js_needle.size ()); + if (ending.find (fifo_prefix) == 0) + { + ending = ending.substr (fifo_prefix.size ()); + pipe_path = ending.substr (0, ending.find (' ')); + is_active = true; + } + else if (sscanf (makeflags.c_str () + n + js_needle.size (), + "%d,%d", &rfd, &wfd) == 2 && rfd > 0 && wfd > 0 && is_valid_fd (rfd) |