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-rw-r--r--libbuild2/cc/pkgconfig.cxx51
1 files changed, 49 insertions, 2 deletions
diff --git a/libbuild2/cc/pkgconfig.cxx b/libbuild2/cc/pkgconfig.cxx
index b0b9675..ff84dc4 100644
--- a/libbuild2/cc/pkgconfig.cxx
+++ b/libbuild2/cc/pkgconfig.cxx
@@ -316,9 +316,15 @@ namespace build2
assert (!ap.empty () || !sp.empty ());
- // Append -I<dir> or -L<dir> option suppressing duplicates.
+ const scope& rs (*s.root_scope ());
+
+ const dir_path* sysroot (
+ cast_null<abs_dir_path> (rs["config.cc.pkgconfig.sysroot"]));
+
+ // Append -I<dir> or -L<dir> option suppressing duplicates. Also handle
+ // the sysroot rewrite.
//
- auto append_dir = [] (strings& ops, string&& o)
+ auto append_dir = [sysroot] (strings& ops, string&& o)
{
char c (o[1]);
@@ -337,6 +343,47 @@ namespace build2
// Note that we do normalize -L paths in the usrd logic later
// (but not when setting as *.export.loptions).
+ if (sysroot != nullptr)
+ {
+ // Notes:
+ //
+ // - The path might not be absolute (we only rewrite absolute ones).
+ //
+ // - Do this before duplicate suppression since options in ops
+ // already have the sysroot rewritten.
+ //
+ // - Check if the path already starts with sysroot since some .pc
+ // files might already be in a good shape (e.g., because they use
+ // ${pcfiledir} to support relocation properly).
+ //
+ const char* op (o.c_str () + 2);
+ size_t on (o.size () - 2);
+
+ if (path_traits::absolute (op, on))
+ {
+ const string& s (sysroot->string ());
+
+ const char* sp (s.c_str ());
+ size_t sn (s.size ());
+
+ if (!path_traits::sub (op, on, sp, sn)) // Already in sysroot.
+ {
+ // Find the first directory seperator that seperates the root
+ // component from the rest of the path (think /usr/include,
+ // c:\install\include). We need to replace the root component
+ // with sysroot. If there is no separator (say, -Ic:) or the
+ // path after the separator is empty (say, -I/), then we replace
+ // the entire path.
+ //
+ size_t p (path_traits::find_separator (o, 2));
+ if (p == string::npos || p + 1 == o.size ())
+ p = o.size ();
+
+ o.replace (2, p - 2, s);
+ }
+ }
+ }
+
for (const string& x: ops)
{
if (x.size () > 2 && x[0] == '-' && x[1] == c)