patches/binutils/2.17/150-check_ldrunpath_length.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Thu May 26 22:51:03 2011 +0200 (2011-05-26)
changeset 2481 30644208c955
parent 745 e445c00d134d
permissions -rw-r--r--
configure: add possibility to set arbitrary variable in check_for

If check_for is able to find the required prog/inc/lib, allow it to
set an arbitrary variable to 'y'. This variable is then pushed down
to the kconfig definition.

For example:
has_or_abort prog=foobar kconfig=has_foobar

If foobar is available, it yields a kconfig variable defaulting to y:
config CONFIGURE_has_foobar
bool
default y

If foobar is missing, it yields a kconfig variable defaulting to n:
config CONFIGURE_has_foobar
bool

Thus it is possible to depends on that variabel to show/hide options:
config SOME_FEATURE
bool
prompt "Some feature"
depends on CONFIGURE_has_foobar

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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diff -dur binutils-2.17.old/ld/emultempl/elf32.em binutils-2.17/ld/emultempl/elf32.em
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--- binutils-2.17.old/ld/emultempl/elf32.em	2006-06-12 15:05:04.000000000 +0200
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+++ binutils-2.17/ld/emultempl/elf32.em	2007-05-01 18:26:13.000000000 +0200
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@@ -970,6 +970,8 @@
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 	      && command_line.rpath == NULL)
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 	    {
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 	      lib_path = (const char *) getenv ("LD_RUN_PATH");
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+	      if ((lib_path) && (strlen (lib_path) == 0))
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+		  lib_path = NULL;
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 	      if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
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 						      force))
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 		break;
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@@ -1154,6 +1156,8 @@
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   rpath = command_line.rpath;
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   if (rpath == NULL)
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     rpath = (const char *) getenv ("LD_RUN_PATH");
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+  if ((rpath) && (strlen (rpath) == 0))
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+      rpath = NULL;
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   if (! (bfd_elf_size_dynamic_sections
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 	 (output_bfd, command_line.soname, rpath,
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 	  command_line.filter_shlib,