Do not build libctf for targets that do not use the ELF file format.

top	* configure.ac (noconfigdirs): Add libctf if the target does not use
	the ELF file format.
	* configure: Regenerate.

binutils* configure.ac (LIBCTF): Export.  Set to empty for non-ELF based
	targets.
	(HAVE_LIBCTF): Define if libctf support is available.
	* Makefile.am (LIBCTF): Set value to @LIBCTF@.
	* objdump.c: Make CTF code conditional upon HAVE_LIBCTF being
	defined.
	* readelf.c: Likewise.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.

1 files changed, 16 insertions, 0 deletions

diff --git a/configure b/configure
index 3e95ce5..86dc040 100755
--- a/configure
+++ b/configure
@@ -3604,6 +3604,22 @@ case "${target}" in
     ;;
 esac
 
+# Targets that do not use the ELF file format cannot support libctf.
+case "${target}" in
+  *-*-pe | *-*-*vms* | *-*-darwin | *-*-*coff* | *-*-wince | *-*-mingw*)
+    noconfigdirs="$noconfigdirs libctf"
+    ;;
+  *-*-aout | *-*-osf* | *-*-go32 | *-*-macos* | *-*-rhapsody*)
+    noconfigdirs="$noconfigdirs libctf"
+    ;;
+  *-*-netbsdpe | *-*-cygwin* | *-*-pep | *-*-msdos | *-*-winnt)
+    noconfigdirs="$noconfigdirs libctf"
+    ;;
+  ns32k-*-* | pdp11-*-* | *-*-aix* | *-*-netbsdaout)
+    noconfigdirs="$noconfigdirs libctf"
+    ;;
+esac
+
 case "${target}" in
   *-*-chorusos)
     ;;