source: rtems/c/src/lib/libbsp/bfin/eZKit533/configure.ac @ 2afb22b

5
Last change on this file since 2afb22b was 2afb22b, checked in by Chris Johns <chrisj@…>, on 12/23/17 at 07:18:56

Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

  • The make preinstall step itself needs time and disk space.
  • Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error.
  • There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult.
  • The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit.
  • An introduction of a new build system is difficult.
  • Include paths specified by the -B option are system headers. This may suppress warnings.
  • The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

  • cpukit/include
  • cpukit/score/cpu/@RTEMS_CPU@/include
  • cpukit/libnetworking

The new BSP include directories are:

  • bsps/include
  • bsps/@RTEMS_CPU@/include
  • bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.

  • Property mode set to 100644
File size: 940 bytes
Line 
1## Process this file with autoconf to produce a configure script.
2
3AC_PREREQ([2.69])
4AC_INIT([rtems-c-src-lib-libbsp-bfin-eZKit533],[_RTEMS_VERSION],[https://devel.rtems.org/newticket])
5AC_CONFIG_SRCDIR([make/custom/eZKit533.cfg])
6RTEMS_TOP(../../../../../..)
7RTEMS_SOURCE_TOP
8RTEMS_BUILD_TOP
9RTEMS_BSP_LINKCMDS
10
11RTEMS_CANONICAL_TARGET_CPU
12AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.12.2])
13RTEMS_BSP_CONFIGURE
14
15RTEMS_PROG_CC_FOR_TARGET
16RTEMS_CANONICALIZE_TOOLS
17RTEMS_PROG_CCAS
18
19## bsp-specific options
20RTEMS_BSPOPTS_SET([CONSOLE_USE_INTERRUPTS],[*],[0])
21RTEMS_BSPOPTS_HELP([CONSOLE_USE_INTERRUPTS],
22[The console driver can operate in either polled or interrupt mode.])
23
24RTEMS_BSPOPTS_SET([BFIN_ON_SKYEYE],[*],[0])
25RTEMS_BSPOPTS_HELP([BFIN_ON_SKYEYE],
26[(BSP--Skyeye)
27 If defined, disable features which are not supported on Skyeye.])
28
29RTEMS_BSP_CLEANUP_OPTIONS
30
31# Explicitly list all Makefiles here
32AC_CONFIG_FILES([Makefile])
33AC_OUTPUT
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