[PATCH] Handling of TARGET_IMG_LDFLAGS_AC in configure (bug #28335)

[Grégoire Sutre]

Hi,

The following patch fixes bug report #28335.

http://savannah.gnu.org/bugs/?28335

The definitions and uses of TARGET_IMG_LDFLAGS_AC have been changed so 
that, in all cases, a number is supposed to be appended to it.

In particular, in the case where a linker script if present (lines 
311-314), the definition of TARGET_IMG_LDFLAGS_AC is now the same as the 
definition of TARGET_IMG_LDFLAGS.

Best regards,

Grégoire

2009-12-30 Gregoire Sutre  <address@hidden>

        * configure.ac: all definitions and uses of TARGET_IMG_LDFLAGS_AC now
        expect a number appended to it.
        * acinclude.m4 (grub_PROG_OBJCOPY_ABSOLUTE): ${TARGET_IMG_LDFLAGS_AC}
        expects a number appended to it.

--- acinclude.m4.orig   2009-12-30 22:05:08.000000000 +0100
+++ acinclude.m4        2009-12-30 21:56:05.000000000 +0100
@@ -93,7 +93,7 @@
 fi
 grub_cv_prog_objcopy_absolute=yes
 for link_addr in 0x2000 0x8000 0x7C00; do
-  if AC_TRY_COMMAND([${CC-cc} ${CFLAGS} -nostdlib ${TARGET_IMG_LDFLAGS_AC} 
-Wl,-Ttext -Wl,$link_addr conftest.o -o conftest.exec]); then :
+  if AC_TRY_COMMAND([${CC-cc} ${CFLAGS} -nostdlib 
${TARGET_IMG_LDFLAGS_AC}$link_addr conftest.o -o conftest.exec]); then :
   else
     AC_MSG_ERROR([${CC-cc} cannot link at address $link_addr])
   fi
--- configure.ac.orig   2009-12-30 22:34:06.000000000 +0100
+++ configure.ac        2009-12-30 22:37:04.000000000 +0100
@@ -311,7 +311,7 @@
 if test -f "${srcdir}/conf/${target_cpu}-${platform}-${host_os}-img-ld.sc"; 
then
   
TARGET_IMG_LDSCRIPT='$(top_srcdir)'"/conf/${target_cpu}-${platform}-${host_os}-img-ld.sc"
   TARGET_IMG_LDFLAGS="-Wl,-T${TARGET_IMG_LDSCRIPT}  -Wl,-Ttext,"
-  
TARGET_IMG_LDFLAGS_AC="-Wl,-T${srcdir}/conf/${target_cpu}-${platform}-${host_os}-img-ld.sc"
+  
TARGET_IMG_LDFLAGS_AC="-Wl,-T${srcdir}/conf/${target_cpu}-${platform}-${host_os}-img-ld.sc
  -Wl,-Ttext,"
 else
   TARGET_IMG_LDSCRIPT=
   TARGET_IMG_LDFLAGS='-Wl,-N  -Wl,-Ttext,'
@@ -446,7 +446,7 @@
 if test "x$target_cpu" = xi386; then
   if test ! -z "$TARGET_IMG_LDSCRIPT"; then
     # Check symbols provided by linker script.
-    CFLAGS="$TARGET_CFLAGS -nostdlib $TARGET_IMG_LDFLAGS_AC 
-Wl,-Ttext,8000,--defsym,___main=0x8100"
+    CFLAGS="$TARGET_CFLAGS -nostdlib 
${TARGET_IMG_LDFLAGS_AC}8000,--defsym,___main=0x8100"
   fi
   if test "x$TARGET_APPLE_CC" != x1 ; then
     grub_CHECK_BSS_START_SYMBOL