On Haiku I'm seeing these errors:
/data/testdir1/gllib/spawn.h:110: field `_sp' has incomplete type
/data/testdir1/gllib/spawnattr_setschedpolicy.c: In function
`posix_spawnattr_setschedpolicy':
/data/testdir1/gllib/spawnattr_setschedpolicy.c:28: `SCHED_OTHER' undeclared
(first use in this function)
/data/testdir1/gllib/spawnattr_setschedpolicy.c:28: (Each undeclared identifier
is reported only once
/data/testdir1/gllib/spawnattr_setschedpolicy.c:28: for each function it
appears in.)
/data/testdir1/gllib/spawnattr_setschedpolicy.c:29: `SCHED_FIFO' undeclared
(first use in this function)
/data/testdir1/gllib/spawnattr_setschedpolicy.c:29: `SCHED_RR' undeclared
(first use in this function)
The reason is that <sched.h> exists but does not have the 'struct sched_param'
type nor the SCHED_* macros. This fixes it.
2008-11-15 Bruno Haible <[EMAIL PROTECTED]>
Make the 'sched' module work on platforms where <sched.h> exists but
is incomplete (such as Haiku).
* lib/sched.in.h; Include the system's <sched.h> if it exists.
(SCHED_FIFO, SCHED_RR, SCHED_OTHER): New macros.
* m4/sched_h.m4 (gl_SCHED_H): Test whether <sched.h> exists and also
defines SCHED_FIFO, SCHED_RR, SCHED_OTHER. Set HAVE_SCHED_H,
HAVE_STRUCT_SCHED_PARAM.
* modules/sched (Depends-on): Add include_next.
(Makefile.am): Substitute HAVE_SCHED_H, INCLUDE_NEXT,
PRAGMA_SYSTEM_HEADER, NEXT_SCHED_H, HAVE_STRUCT_SCHED_PARAM.
* doc/posix-headers/sched.texi: Document the issue.
--- doc/posix-headers/sched.texi.orig 2008-11-15 13:05:35.000000000 +0100
+++ doc/posix-headers/sched.texi 2008-11-15 13:05:20.000000000 +0100
@@ -10,6 +10,13 @@
@item
This header file is missing on some platforms:
mingw, BeOS.
[EMAIL PROTECTED]
[EMAIL PROTECTED] sched_param} is not defined on some platforms:
+Haiku.
[EMAIL PROTECTED]
[EMAIL PROTECTED], @code{SCHED_RR}, @code{SCHED_OTHER} are not defined on
+some platforms:
+Haiku.
@end itemize
Portability problems not fixed by Gnulib:
--- lib/sched.in.h.orig 2008-11-15 13:05:35.000000000 +0100
+++ lib/sched.in.h 2008-11-15 12:26:54.000000000 +0100
@@ -15,11 +15,33 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _GL_SCHED_H
+
+#if __GNUC__ >= 3
[EMAIL PROTECTED]@
+#endif
+
+/* The include_next requires a split double-inclusion guard. */
+#if @HAVE_SCHED_H@
+# @INCLUDE_NEXT@ @NEXT_SCHED_H@
+#endif
+
+#ifndef _GL_SCHED_H
#define _GL_SCHED_H
+#if [EMAIL PROTECTED]@
+
struct sched_param
{
int sched_priority;
};
+#endif
+
+#if !(defined SCHED_FIFO && defined SCHED_RR && defined SCHED_OTHER)
+# define SCHED_FIFO 1
+# define SCHED_RR 2
+# define SCHED_OTHER 0
+#endif
+
+#endif /* _GL_SCHED_H */
#endif /* _GL_SCHED_H */
--- m4/sched_h.m4.orig 2008-11-15 13:05:35.000000000 +0100
+++ m4/sched_h.m4 2008-11-11 02:39:20.000000000 +0100
@@ -1,4 +1,4 @@
-# sched_h.m4 serial 1
+# sched_h.m4 serial 2
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,
@@ -8,11 +8,29 @@
AC_DEFUN([gl_SCHED_H],
[
- AC_CHECK_HEADERS_ONCE([sched.h])
- if test $ac_cv_header_sched_h = yes; then
- SCHED_H=''
- else
- SCHED_H='sched.h'
- fi
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[
+ #include <sched.h>
+ struct sched_param a;
+ int b[] = { SCHED_FIFO, SCHED_RR, SCHED_OTHER };
+ ]])],
+ [SCHED_H=''],
+ [SCHED_H='sched.h'
+
+ gl_CHECK_NEXT_HEADERS([sched.h])
+
+ AC_CHECK_HEADERS_ONCE([sched.h])
+ if test $ac_cv_header_sched_h = yes; then
+ HAVE_SCHED_H=1
+ else
+ HAVE_SCHED_H=0
+ fi
+ AC_SUBST([HAVE_SCHED_H])
+
+ AC_CHECK_TYPE([struct sched_param],
+ [HAVE_STRUCT_SCHED_PARAM=1], [HAVE_STRUCT_SCHED_PARAM=0],
+ [#include <sched.h>])
+ AC_SUBST([HAVE_STRUCT_SCHED_PARAM])
+ ])
AC_SUBST([SCHED_H])
])
--- modules/sched.orig 2008-11-15 13:05:35.000000000 +0100
+++ modules/sched 2008-11-11 02:40:02.000000000 +0100
@@ -6,6 +6,7 @@
m4/sched_h.m4
Depends-on:
+include_next
configure.ac:
gl_SCHED_H
@@ -18,7 +19,12 @@
sched.h: sched.in.h
rm -f [EMAIL PROTECTED] $@
{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
- cat < $(srcdir)/sched.in.h; \
+ sed -e 's|@''HAVE_SCHED_H''@|$(HAVE_SCHED_H)|g' \
+ -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+ -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+ -e 's|@''NEXT_SCHED_H''@|$(NEXT_SCHED_H)|g' \
+ -e 's|@''HAVE_STRUCT_SCHED_PARAM''@|$(HAVE_STRUCT_SCHED_PARAM)|g'
\
+ < $(srcdir)/sched.in.h; \
} > [EMAIL PROTECTED]
mv [EMAIL PROTECTED] $@
MOSTLYCLEANFILES += sched.h sched.h-t
