[PATCH] prefix sysroot to path variables

Prefix path values with sysroot if a variable is requested
(--varable=<name>), similar to how it's done for -I / -L flags.

This is sometimes used to find header files (E.G. in gst-plugins configure),
so ensure the sysroot'ed files are used.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 main.c |    3 +++
 1 file changed, 3 insertions(+)

Index: pkg-config-0.25/main.c
===================================================================
--- pkg-config-0.25.orig/main.c
+++ pkg-config-0.25/main.c
@@ -695,6 +695,9 @@ main (int argc, char **argv)
   if (variable_name)
     {
       char *str = packages_get_var (packages, variable_name);
+      /* path variable? */
+      if (pcsysrootdir && str[0] == '/')
+          printf ("%s/", pcsysrootdir);
       printf ("%s", str);
       g_free (str);
       need_newline = TRUE;