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From: "syq at debian dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/67590] New: libcc1 cannot find objdump when cross build native
Date: Tue, 15 Sep 2015 14:38:00 -0000
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X-Bugzilla-Version: 5.2.1
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67590

            Bug ID: 67590
           Summary: libcc1 cannot find objdump when cross build native
           Product: gcc
           Version: 5.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: syq at debian dot org
  Target Milestone: ---

The configure of libcc1 uses gcc_cv_objdump var when cross build native.
while it is not defined at all.

So we can use gcc/configure.ac one.

Index: gcc-5-5.2.1/src/libcc1/configure.ac
===================================================================
--- gcc-5-5.2.1.orig/src/libcc1/configure.ac
+++ gcc-5-5.2.1/src/libcc1/configure.ac
@@ -63,6 +63,31 @@ if test "$GXX" = yes; then
 fi
 AC_SUBST(libsuffix)

+# Figure out what objdump we will be using.
+AS_VAR_SET_IF(gcc_cv_objdump,, [
+if test -f $gcc_cv_binutils_srcdir/configure.in \
+     && test -f ../binutils/Makefile \
+     && test x$build = x$host; then
+       # Single tree build which includes binutils.
+       gcc_cv_objdump=../binutils/objdump$build_exeext
+elif test -x objdump$build_exeext; then
+       gcc_cv_objdump=./objdump$build_exeext
+elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then
+        gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
+else
+        AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
+fi])
+
+AC_MSG_CHECKING(what objdump to use)
+if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
+       # Single tree build which includes binutils.
+       AC_MSG_RESULT(newly built objdump)
+elif test x$gcc_cv_objdump = x; then
+       AC_MSG_RESULT(not found)
+else
+       AC_MSG_RESULT($gcc_cv_objdump)
+fi
+
 dnl Test for -lsocket and -lnsl.  Copied from libgo/configure.ac.
 AC_CACHE_CHECK([for socket libraries], libcc1_cv_lib_sockets,
   [libcc1_cv_lib_sockets=