Patch rtems-rc-19991123-rc-2.diff from Ralf Corsepius

    <corsepiu@faw.uni-ulm.de> which implements automake support for some
    score/cpu/<RTEMS_CPU> subdirectories and fixes a few minor configuration
    bugs.


    To apply:

        rm -rf c/src/exec/score/cpu/a29k/wrap
        rm -rf c/src/exec/score/cpu/hppa1.1/wrap
        rm -rf c/src/exec/score/cpu/i386/wrap
        rm -rf c/src/exec/score/cpu/mips64orion/wrap
        rm -rf c/src/exec/score/cpu/no_cpu/wrap
        patch -p1 < rtems-rc-19991123-rc-2.diff.gz

    Notes:

    * I don't see a possiblity to convert the powerpc subdirectory in its
      current layout to automake the time being.

    * Besides the fact that this subdirectory is not in single-tree building
      layout, the actual showstopper is the ifeq $(RTEMS_CPU_MODEL),mpc750)
      gmake-conditional in powerpc/Makefile.in, which automake (correctly)
      refuses to handle.

    * The problem is *not* specific to the powerpc. Other CPUs basically
      have similar problems (SH:sh7032 vs sh7045, SPARC: erc32.h in
      score/cpu/sparc), but have been lucky to get around real issues (cf.
      configuration files below score/cpu/sh/).

    * From a configuration focused POV this problem boils down to a
      file/subdirectory selection problem:
         ppc: 1 or others
         sh: 1 out of 2
         sparc: 1 out of 1
      Automake's means to implement such behavior is using conditionals to be
      evaluated at configuration-time. The old configuration scheme however
      used make-time conditionals. The SH port was lucky to get around this
      issue because it applies a selection from a limited set of possible
      selections, the powerpc however applies a selection from an unlimited
      set, based on data not being available at configuration time.

    * Currently I only see two general solutions:
       1) make RTEMS_CPU_MODEL available at configuration time, ie. replace
          make-time configuration by configuration-time configuration
       2) Perform the selection at build-time, i.e. always install all files,
          but use #ifdef #else #endif in source files. This is what the m68k has
          exploited at other locations inside of the source-tree.

    => This directory is the last one remaining not using automake below the
       whole exec/ hierarchy.

1 files changed, 40 insertions, 0 deletions

diff --git a/c/src/exec/score/cpu/mips/configure.in b/c/src/exec/score/cpu/mips/configure.in
new file mode 100644
index 0000000000..c26e7cb248
--- /dev/null
+++ b/c/src/exec/score/cpu/mips/configure.in
@@ -0,0 +1,40 @@
+dnl Process this file with autoconf to produce a configure script.
+dnl
+dnl $Id$
+
+AC_PREREQ(2.13)
+AC_INIT(cpu_asm.S)
+RTEMS_TOP(../../../../../..)
+AC_CONFIG_AUX_DIR(../../../../../..)
+
+RTEMS_CANONICAL_TARGET_CPU
+
+AM_INIT_AUTOMAKE(rtems-c-src-exec-score-cpu-mips64orion,$RTEMS_VERSION,no)
+AM_MAINTAINER_MODE
+
+RTEMS_ENABLE_LIBCDIR
+
+RTEMS_ENV_RTEMSBSP
+
+RTEMS_CHECK_CPU
+RTEMS_CANONICAL_HOST
+
+RTEMS_PROJECT_ROOT
+
+dnl check target cc
+RTEMS_PROG_CC_FOR_TARGET
+RTEMS_CANONICALIZE_TOOLS
+
+RTEMS_CHECK_NEWLIB
+
+# Check if there is custom/*.cfg for this BSP
+RTEMS_CHECK_CUSTOM_BSP(RTEMS_BSP)
+
+PROJECT_INCLUDE="\$(PROJECT_ROOT)/$RTEMS_BSP/lib/include"
+AC_SUBST(PROJECT_INCLUDE)
+
+# Try to explicitly list a Makefile here 
+AC_OUTPUT( 
+Makefile
+rtems/Makefile
+rtems/score/Makefile)