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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/collect2.c18
2 files changed, 24 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 06f8e77d3f0..9c05763b30c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,11 @@
2009-06-02 Richard Sandiford <r.sandiford@uk.ibm.com>
+ * collect2.c (target_system_root): New variable.
+ (main): Handle --sysroot=.
+ (ignore_library): Strip the sysroot from the library path.
+
+2009-06-02 Richard Sandiford <r.sandiford@uk.ibm.com>
+
* Makefile.in (COLLECT2_OBJS): Add collect2-aix.o.
(collect2.o): Depend on collect2-aix.h.
(collect2-aix.o): New rule.
diff --git a/gcc/collect2.c b/gcc/collect2.c
index 660664dd29a..9848b903580 100644
--- a/gcc/collect2.c
+++ b/gcc/collect2.c
@@ -217,6 +217,14 @@ static char *response_file; /* Name of any current response file */
struct obstack temporary_obstack;
char * temporary_firstobj;
+/* A string that must be prepended to a target OS path in order to find
+ it on the host system. */
+#ifdef TARGET_SYSTEM_ROOT
+static const char *target_system_root = TARGET_SYSTEM_ROOT;
+#else
+static const char *target_system_root = "";
+#endif
+
/* Structure to hold all the directories in which to search for files to
execute. */
@@ -1224,6 +1232,8 @@ main (int argc, char **argv)
ld1--;
ld2--;
}
+ else if (strncmp (arg, "--sysroot=", 10) == 0)
+ target_system_root = arg + 10;
break;
}
}
@@ -2454,7 +2464,15 @@ static int
ignore_library (const char *name)
{
const char *const *p;
+ size_t length;
+ if (target_system_root[0] != '\0')
+ {
+ length = strlen (target_system_root);
+ if (strncmp (name, target_system_root, length) != 0)
+ return 0;
+ name += length;
+ }
for (p = &aix_std_libs[0]; *p != NULL; ++p)
if (strcmp (name, *p) == 0)
return 1;