This commit was manufactured by cvs2svn to create branch 'gdb_6_2-branch'.jimb-gdb_6_2-e500-branchpointgdb_6_2-20040730-releasegdb_6_2-2004-07-10-gmt-branchpointgdb_6_2-branch

Sprout from ezannoni_pie-20040323-branch 2004-03-23 23:05:53 UTC cvs2svn 'This commit was manufactured by cvs2svn to create branch'
Cherrypick from master 2004-07-09 18:42:14 UTC Andreas Schwab <schwab@linux-m68k.org> 'binutils/testsuite/:':
    ChangeLog
    MAINTAINERS
    Makefile.def
    Makefile.in
    Makefile.tpl
    config-ml.in
    config.sub
    config/ChangeLog
    config/acx.m4
    configure
    configure.in
    include/ChangeLog
    include/bfdlink.h
    include/coff/ChangeLog
    include/coff/ecoff.h
    include/coff/internal.h
    include/coff/mips.h
    include/demangle.h
    include/dis-asm.h
    include/elf/ChangeLog
    include/elf/common.h
    include/elf/cr16c.h
    include/elf/crx.h
    include/elf/m32r.h
    include/elf/mips.h
    include/elf/sh.h
    include/gdb/ChangeLog
    include/gdb/callback.h
    include/hashtab.h
    include/opcode/ChangeLog
    include/opcode/crx.h
    include/opcode/i386.h
    include/opcode/m68k.h
    include/splay-tree.h
    src-release
Delete:
    include/mpw/ChangeLog
    include/mpw/README
    include/mpw/dir.h
    include/mpw/dirent.h
    include/mpw/fcntl.h
    include/mpw/grp.h
    include/mpw/mpw.h
    include/mpw/pwd.h
    include/mpw/spin.h
    include/mpw/stat.h
    include/mpw/sys/file.h
    include/mpw/sys/param.h
    include/mpw/sys/resource.h
    include/mpw/sys/stat.h
    include/mpw/sys/time.h
    include/mpw/sys/types.h
    include/mpw/utime.h
    include/mpw/varargs.h
    mpw-README
    mpw-build.in
    mpw-config.in
    mpw-configure
    mpw-install

1 files changed, 94 insertions, 2 deletions

diff --git a/config/acx.m4 b/config/acx.m4
index ab7f98a21..09bac1c6c 100644
--- a/config/acx.m4
+++ b/config/acx.m4
@@ -177,16 +177,108 @@ acx_cv_cc_gcc_supports_ada=no
 # has not been installed.  This is fixed in 2.95.4, 3.0.2, and 3.1.
 # Therefore we must check for the error message as well as an
 # unsuccessful exit.
+# Other compilers, like HP Tru64 UNIX cc, exit successfully when
+# given a .adb file, but produce no object file.  So we must check
+# if an object file was really produced to guard against this.
 errors=`(${CC} -c conftest.adb) 2>&1 || echo failure`
-if test x"$errors" = x; then
+if test x"$errors" = x && test -f conftest.$ac_objext; then
   acx_cv_cc_gcc_supports_ada=yes
   break
 fi
 rm -f conftest.*])
 
-if test x$GNATBIND != xno && test x$acx_cv_gcc_supports_ada != xno; then
+if test x$GNATBIND != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
   have_gnat=yes
 else
   have_gnat=no
 fi
 ])
+
+dnl 'make compare' can be significantly faster, if cmp itself can
+dnl skip bytes instead of using tail.  The test being performed is
+dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
+dnl but we need to sink errors and handle broken shells.  We also test
+dnl for the parameter format "cmp file1 file2 skip1 skip2" which is
+dnl accepted by cmp on some systems.
+AC_DEFUN([ACX_PROG_CMP_IGNORE_INITIAL],
+[AC_CACHE_CHECK([how to compare bootstrapped objects], gcc_cv_prog_cmp_skip,
+[ echo abfoo >t1
+  echo cdfoo >t2
+  gcc_cv_prog_cmp_skip='tail +16c $$f1 > tmp-foo1; tail +16c $$f2 > tmp-foo2; cmp tmp-foo1 tmp-foo2'
+  if cmp t1 t2 2 2 > /dev/null 2>&1; then
+    if cmp t1 t2 1 1 > /dev/null 2>&1; then
+      :
+    else
+      gcc_cv_prog_cmp_skip='cmp $$f1 $$f2 16 16'
+    fi
+  fi
+  if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
+    if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
+      :
+    else
+      gcc_cv_prog_cmp_skip='cmp --ignore-initial=16 $$f1 $$f2'
+    fi
+  fi
+  rm t1 t2
+])
+do_compare="$gcc_cv_prog_cmp_skip"
+AC_SUBST(do_compare)
+])
+
+dnl See whether we can include both string.h and strings.h.
+AC_DEFUN([ACX_HEADER_STRING],
+[AC_CACHE_CHECK([whether string.h and strings.h may both be included],
+  gcc_cv_header_string,
+[AC_TRY_COMPILE([#include <string.h>
+#include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
+if test $gcc_cv_header_string = yes; then
+  AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
+fi
+])
+
+dnl See if stdbool.h properly defines bool and true/false.
+dnl Check whether _Bool is built-in.
+AC_DEFUN([ACX_HEADER_STDBOOL],
+[AC_CACHE_CHECK([for working stdbool.h],
+  ac_cv_header_stdbool_h,
+[AC_TRY_COMPILE([#include <stdbool.h>],
+[bool foo = false;],
+ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
+if test $ac_cv_header_stdbool_h = yes; then
+  AC_DEFINE(HAVE_STDBOOL_H, 1,
+  [Define if you have a working <stdbool.h> header file.])
+fi
+AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
+[AC_TRY_COMPILE(,
+[_Bool foo;],
+gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
+])
+if test $gcc_cv_c__bool = yes; then
+  AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
+fi
+])
+
+dnl See if hard links work and if not, try to substitute $1 or simple copy.
+AC_DEFUN([ACX_PROG_LN],
+[AC_MSG_CHECKING(whether ln works)
+AC_CACHE_VAL(acx_cv_prog_LN,
+[rm -f conftestdata_t
+echo >conftestdata_f
+if ln conftestdata_f conftestdata_t 2>/dev/null
+then
+  acx_cv_prog_LN=ln
+else
+  acx_cv_prog_LN=no
+fi
+rm -f conftestdata_f conftestdata_t
+])dnl
+if test $acx_cv_prog_LN = no; then
+  LN="ifelse([$1],,cp,[$1])"
+  AC_MSG_RESULT([no, using $LN])
+else
+  LN="$acx_cv_prog_LN"
+  AC_MSG_RESULT(yes)
+fi
+AC_SUBST(LN)dnl
+])
+