diff options
| author | Janne Blomqvist <jb@gcc.gnu.org> | 2019-05-17 21:18:04 +0300 |
|---|---|---|
| committer | Janne Blomqvist <jb@gcc.gnu.org> | 2019-05-17 21:18:04 +0300 |
| commit | f888603842067252f8a9d14eaa9d070ae7b00662 (patch) | |
| tree | c99a2f356406142291186a4b7102a86f67f29579 /libgfortran/config.h.in | |
| parent | 8ee47828d226e2041ac0f3b5b8c1aed43cec24a4 (diff) | |
libfortran/90038: Use posix_spawn instead of fork
fork() semantics can be problematic. Most unix style OS'es have
posix_spawn which can be used to replace fork + exec in many cases.
For more information see
e.g. https://www.microsoft.com/en-us/research/uploads/prod/2019/04/fork-hotos19.pdf
This replaces the one use of fork in libgfortran with posix_spawn.
2019-05-17 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/90038
* configure.ac (AC_CHECK_FUNCS_ONCE): Check for posix_spawn.
* intrinsics/execute_command_line (execute_command_line): Use
posix_spawn.
* Makefile.in: Regenerated.
* config.h.in: Regenerated.
* configure: Regenerated.
Regtested on x86_64-pc-linux-gnu.
From-SVN: r271340
Diffstat (limited to 'libgfortran/config.h.in')
| -rw-r--r-- | libgfortran/config.h.in | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libgfortran/config.h.in b/libgfortran/config.h.in index cbd720a2670..da3968cb94f 100644 --- a/libgfortran/config.h.in +++ b/libgfortran/config.h.in @@ -627,6 +627,9 @@ /* Define to 1 if we have POSIX getpwuid_r which takes 5 arguments. */ #undef HAVE_POSIX_GETPWUID_R +/* Define to 1 if you have the `posix_spawn' function. */ +#undef HAVE_POSIX_SPAWN + /* Define to 1 if you have the `pow' function. */ #undef HAVE_POW |