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Add popen feature

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* doc/ref/api-options.texi (Common Feature Symbols): Document the popen
  feature.
* doc/ref/posix.texi (Pipes): Depend on the popen feature, not fork.
* libguile/posix.c (scm_init_posix): Add popen feature if we can.
This commit is contained in:
Andy Wingo 2016-07-14 16:33:32 +02:00
parent 4e02ce55a6
commit e8c93013e3
3 changed files with 7 additions and 3 deletions
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libguile/posix.c
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@ -2339,6 +2339,7 @@ scm_init_posix ()
scm_add_feature ("fork");
#endif /* HAVE_FORK */
#ifdef HAVE_START_CHILD
scm_add_feature ("popen");
scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION,
"scm_init_popen",
(scm_t_extension_init_func) scm_init_popen,