[patch, rfc] configure option for default value of solib-search-path

[Dan Kegel <dkegel@ixiacom.com>]

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In my cross-development environment, I need to type

set solib-search-path 
/opt/hardhat/devkit/ppc/405/powerpc-hardhat-linux/lib:/opt/hardhat/devkit/ppc/405/powerpc-hardhat-linux/usr/lib:/opt/hardhat/devkit/ppc/405/target/lib:/opt/hardhat/devkit/ppc/405/target/usr/lib

when I start gdb.  That's just a bit awkward; I'd prefer to have it default
to the proper value, just like the Montavista version does.

Here's a patch that lets you set the initial value of this patch at
configure time.  I haven't sent in a copyright assignment, so this
won't be accepted into the gdb tree, but I'd appreciate comments on
whether this is the right approach.  If it is, I'll gladly get the
copyright asignment paperwork going.

(Note: after applying the patch, you need to run autoconf.)

Thanks,
Dan


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--- src/gdb/solib.c.orig	Sat Jul 13 12:13:51 2002
+++ src/gdb/solib.c	Sat Jul 13 12:15:23 2002
@@ -65,7 +65,11 @@
 /* If non-empty, this is a search path for loading non-absolute shared library
    symbol files.  This takes precedence over the environment variables PATH
    and LD_LIBRARY_PATH.  */
-static char *solib_search_path = NULL;
+#ifdef CONFIG_SOLIB_SEARCH_PATH
+  static char *solib_search_path = CONFIG_SOLIB_SEARCH_PATH;
+#else 
+  static char *solib_search_path = NULL;
+#endif
 
 /*

--- src/gdb/acconfig.h.orig	Sat Jul 13 12:53:20 2002
+++ src/gdb/acconfig.h	Sat Jul 13 12:54:46 2002
@@ -176,3 +176,7 @@
 
 /* nativefile */
 #undef GDB_NM_FILE
+
+/* Define when building cross gcc for particular cross-development environment */
+#undef CONFIG_SOLIB_SEARCH_PATH
+
--- src/gdb/config.in.orig	Thu Apr 11 11:32:51 2002
+++ src/gdb/config.in	Sat Jul 13 12:55:42 2002
@@ -186,6 +189,9 @@
 
 /* nativefile */
 #undef GDB_NM_FILE
+
+/* Define when building cross gcc for particular cross-development environment */
+#undef CONFIG_SOLIB_SEARCH_PATH
 
 /* Define if you have the __argz_count function.  */
 #undef HAVE___ARGZ_COUNT
--- src/gdb/configure.in.orig	Sat Jul 13 12:47:13 2002
+++ src/gdb/configure.in	Sat Jul 13 12:55:33 2002
@@ -932,6 +932,13 @@
 ],)
 
 
+AC_ARG_WITH(solib-search-path, [  --with-solib-search-path=DIR:DIR:DIR...   Directories to search for shared libraries on host], with_solib_seach_path=${withval})    
+
+if test x"${with_solib_seach_path}" != x ; then
+    AC_DEFINE_UNQUOTED(CONFIG_SOLIB_SEARCH_PATH,"$with_solib_seach_path")
+fi
+AC_SUBST(CONFIG_SOLIB_SEARCH_PATH)
+
 AC_ARG_ENABLE(gdbtk,
 [  --enable-gdbtk          Enable GDBTK GUI front end],
 [case "${enableval}" in