1 files changed, 68 insertions, 0 deletions
diff --git a/buildtools/wafsamba/pkgconfig.py b/buildtools/wafsamba/pkgconfig.py
new file mode 100644
index 0000000..417bf03
--- /dev/null
+++ b/buildtools/wafsamba/pkgconfig.py
@@ -0,0 +1,68 @@
+# handle substitution of variables in pc files
+
+import os, re, sys
+from waflib import Build, Logs
+from samba_utils import SUBST_VARS_RECURSIVE, TO_LIST
+
+def subst_at_vars(task):
+    '''substitute @VAR@ style variables in a file'''
+
+    s = task.inputs[0].read()
+    # split on the vars
+    a = re.split(r'(@\w+@)', s)
+    out = []
+    done_var = {}
+    back_sub = [ ('PREFIX', '${prefix}'), ('EXEC_PREFIX', '${exec_prefix}')]
+    for v in a:
+        if re.match(r'@\w+@', v):
+            vname = v[1:-1]
+            if not vname in task.env and vname.upper() in task.env:
+                vname = vname.upper()
+            if not vname in task.env:
+                Logs.error("Unknown substitution %s in %s" % (v, task.name))
+                sys.exit(1)
+            v = SUBST_VARS_RECURSIVE(task.env[vname], task.env)
+            # now we back substitute the allowed pc vars
+            for (b, m) in back_sub:
+                s = task.env[b]
+                if s == v[0:len(s)]:
+                    if not b in done_var:
+                        # we don't want to substitute the first usage
+                        done_var[b] = True
+                    else:
+                        v = m + v[len(s):]
+                    break
+        out.append(v)
+    contents = ''.join(out)
+    task.outputs[0].write(contents)
+    return 0
+
+
+def PKG_CONFIG_FILES(bld, pc_files, vnum=None, extra_name=None):
+    '''install some pkg_config pc files'''
+    dest = '${PKGCONFIGDIR}'
+    dest = bld.EXPAND_VARIABLES(dest)
+    for f in TO_LIST(pc_files):
+        if extra_name:
+            target = f.split('.pc')[0] + extra_name + ".pc"
+        else:
+            target = f
+        base=os.path.basename(target)
+        t = bld.SAMBA_GENERATOR('PKGCONFIG_%s' % base,
+                                rule=subst_at_vars,
+                                source=f+'.in',
+                                target=target)
+        bld.add_manual_dependency(bld.path.find_or_declare(f), bld.env['PREFIX'].encode('utf8'))
+        t.vars = []
+        if t.env.RPATH_ON_INSTALL:
+            t.env.LIB_RPATH = t.env.RPATH_ST % t.env.LIBDIR
+        else:
+            t.env.LIB_RPATH = ''
+        if vnum:
+            t.env.PACKAGE_VERSION = vnum
+        for v in [ 'PREFIX', 'EXEC_PREFIX', 'LIB_RPATH' ]:
+            t.vars.append(t.env[v])
+        bld.INSTALL_FILES(dest, target, flat=True, destname=base)
+Build.BuildContext.PKG_CONFIG_FILES = PKG_CONFIG_FILES
+
+