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-rw-r--r--buildtools/wafsamba/pkgconfig.py68
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
+
+