New module 'spawn'.

1 files changed, 69 insertions, 0 deletions

diff --git a/m4/spawn_h.m4 b/m4/spawn_h.m4
new file mode 100644
index 0000000000..50ef49ec27
--- /dev/null
+++ b/m4/spawn_h.m4
@@ -0,0 +1,69 @@
+# spawn_h.m4 serial 1
+dnl Copyright (C) 2008 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Written by Bruno Haible.
+
+AC_DEFUN([gl_SPAWN_H],
+[
+  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
+  dnl once only, before all statements that occur in other macros.
+  AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+
+  gl_CHECK_NEXT_HEADERS([spawn.h])
+
+  AC_CHECK_HEADERS_ONCE([spawn.h])
+  if test $ac_cv_header_spawn_h = yes; then
+    HAVE_SPAWN_H=1
+  else
+    HAVE_SPAWN_H=0
+  fi
+  AC_SUBST([HAVE_SPAWN_H])
+
+  AC_REQUIRE([AC_C_RESTRICT])
+])
+
+dnl Unconditionally enables the replacement of <spawn.h>.
+AC_DEFUN([gl_REPLACE_SPAWN_H],
+[
+  AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+  SPAWN_H='spawn.h'
+])
+
+AC_DEFUN([gl_SPAWN_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_SPAWN_H_DEFAULTS],
+[
+  GNULIB_POSIX_SPAWN=0;                       AC_SUBST([GNULIB_POSIX_SPAWN])
+  GNULIB_POSIX_SPAWNP=0;                      AC_SUBST([GNULIB_POSIX_SPAWNP])
+  GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT=0;     AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT])
+  GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE])
+  GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0;  AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2])
+  GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0;  AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN])
+  GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY=0;  AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY])
+  GNULIB_POSIX_SPAWNATTR_INIT=0;              AC_SUBST([GNULIB_POSIX_SPAWNATTR_INIT])
+  GNULIB_POSIX_SPAWNATTR_GETFLAGS=0;          AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETFLAGS])
+  GNULIB_POSIX_SPAWNATTR_SETFLAGS=0;          AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETFLAGS])
+  GNULIB_POSIX_SPAWNATTR_GETPGROUP=0;         AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETPGROUP])
+  GNULIB_POSIX_SPAWNATTR_SETPGROUP=0;         AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETPGROUP])
+  GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM])
+  GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM])
+  GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY=0;    AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY])
+  GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY=0;    AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY])
+  GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT])
+  GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT])
+  GNULIB_POSIX_SPAWNATTR_GETSIGMASK=0;        AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGMASK])
+  GNULIB_POSIX_SPAWNATTR_SETSIGMASK=0;        AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGMASK])
+  GNULIB_POSIX_SPAWNATTR_DESTROY=0;           AC_SUBST([GNULIB_POSIX_SPAWNATTR_DESTROY])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_POSIX_SPAWN=1;     AC_SUBST([HAVE_POSIX_SPAWN])
+  REPLACE_POSIX_SPAWN=0;  AC_SUBST([REPLACE_POSIX_SPAWN])
+  SPAWN_H='';             AC_SUBST([SPAWN_H])
+])