source: rtems/make/custom/posix.cfg @ c801aba

4.104.114.84.95
Last change on this file since c801aba was ea562ee9, checked in by Joel Sherrill <joel.sherrill@…>, on 08/12/99 at 18:22:17

Patch from Ralf Corsepius <corsepiu@…>:

After upgrading my linux box to the brand new SuSE 6.2 release, which is
glibc-2.1 based, I came across a bug in RTEMS - IIRC, I even warned you
about it about 1/2 a year ago, but nothing has been done since then :-.

The *.m4 macros to check for SYSV/IPC are broken for linux/glibc2.1,
because they assume that linux always defines union semun, which isn't
true anymore for glibc2.1 (the manpage for semctl states _X_OPEN
specifies it this way). Therefore I have tried to implement a more
general approach for handling SYSV for unix/posix which checks for
presence of struct semun, instead of trying to evaluate OS specific
preprocessor symbols.

This approach is a bit adventureous, because I only tested it with
linux/glibc2.1 and linux/libc5, but not under other Unix variants RTEMS
supports. I am quite confident it will work on other hosts, too, but who
knows :-.

[FYI: I think this might also is the cause of some problems with RedHat?
6.X / Mandrake linux recently reported on the rtems list -- rtems-4.0.0
can not be build for posix on any glibc2.1 based host]

Furthermore the patch below contains a couple of minor fixes and
configuration cleanups, which IMO should be applied before releasing a
new snapshot.

To apply this patch:

cd <source-tree>
patch -p1 < rtems-rc-19990709-8.diff
./autogen
  • Property mode set to 100644
File size: 938 bytes
Line 
1#
2#  Config file for the posix based RTEMS
3#
4#  $Id$
5#
6
7# include $(RTEMS_ROOT)/make/target.cfg
8include $(RTEMS_ROOT)/make/host.cfg
9
10# Set them here, otherwise gcc-target-default.cfg will set them to values
11# not working on some os variants (linux-RH5.0, glibc versions 2.0.0 - 2.0.7)
12# These should be available on all unices
13LIBC_LIBC=-lc
14LIBC_LIBM=-lm
15
16include $(RTEMS_ROOT)/make/custom/$(RTEMS_HOST)-posix.cfg
17
18# Not applicable - let's override 'em
19LINKCMDS=
20START_FILE=
21START_BASE=
22
23# Here is the rule to actually build a $(ARCH)/foo.exe
24# It also builds $(ARCH)/foo.sr and $(ARCH)/foo.nm
25# Usage ref: src/tests/sptest/sp1/Makefile
26#
27# 'NODE' is set to 1 or 2 for multi cpu tests (ref: mptests/mp01/node1/Makefile)
28# If NODE is set as an environment variable, don't trust it, zero it out.
29# (NODE turns out to be a very common environment variable)
30ifeq (,$(NODE))
31NODE=0
32else
33ifeq "$(origin NODE)" "environment"
34NODE=0
35endif
36endif
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