build: DEFUN->DEFINE, and fixed CFLAGS handling

2 files changed, 58 insertions, 16 deletions

diff --git a/lib/replace/wafsamba.py b/lib/replace/wafsamba.py
index 80190f3904..a836eed86d 100644
--- a/lib/replace/wafsamba.py
+++ b/lib/replace/wafsamba.py
@@ -29,7 +29,7 @@ def runonce(function):
 # m4 files
 @runonce
 @conf
-def DEFUN(conf, d, v):
+def DEFINE(conf, d, v):
     conf.define(d, v, quote=False)
     conf.env.append_value('CCDEFINES', d + '=' + str(v))
 
@@ -56,7 +56,18 @@ def CHECK_TYPE_IN(conf, t, hdr):
 @conf
 def CHECK_TYPE(conf, t, alternate):
     if not conf.check(type_name=t, header_name=conf.env.hlist):
-        conf.DEFUN(t, alternate)
+        conf.DEFINE(t, alternate)
+
+@conf
+def CHECK_VARIABLE(conf, v):
+    hdrs=''
+    for h in conf.env.hlist:
+        hdrs += '#include <%s>\n' % h
+    if conf.check(fragment=
+                  '%s\nint main(void) {void *_x; _x=(void *)&%s; return 0;}\n' % (hdrs, v),
+                  execute=0,
+                  msg="Checking for variable %s" % v):
+        conf.DEFINE('HAVE_%s' % v.upper(), 1)
 
 @runonce
 def CHECK_FUNC(conf, f):
@@ -69,6 +80,14 @@ def CHECK_FUNCS(conf, list):
         CHECK_FUNC(conf, f)
 
 
+#################################################
+# return True if a configuration option was found
+@conf
+def CONFIG_SET(conf, option):
+    return (option in conf.env) and (conf.env[option] != ())
+Build.BuildContext.CONFIG_SET = CONFIG_SET
+
+
 ###########################################################
 # check that the functions in 'list' are available in 'library'
 # if they are, then make that library available as a dependency
@@ -117,7 +136,21 @@ def CONFIG_PATH(conf, name, default):
 # add some CFLAGS to the command line
 @conf
 def ADD_CFLAGS(conf, flags):
-    conf.env.append_value('CCFLAGS', flags.split())
+    if not 'EXTRA_CFLAGS' in conf.env:
+        conf.env['EXTRA_CFLAGS'] = []
+    conf.env['EXTRA_CFLAGS'].extend(flags.split())
+
+
+##############################################################
+# work out the current flags. local flags are added first
+def CURRENT_CFLAGS(bld, cflags):
+    if not 'EXTRA_CFLAGS' in bld.env:
+        list = []
+    else:
+        list = bld.env['EXTRA_CFLAGS'];
+    ret = cflags.split()
+    ret.extend(list)
+    return ret
 
 
 ################################################################
@@ -362,7 +395,7 @@ def SAMBA_LIBRARY(bld, libname, source_list,
                   include_list='.',
                   public_headers=None,
                   vnum=None,
-                  cflags=None,
+                  cflags='',
                   autoproto=None):
     if not SET_TARGET_TYPE(bld, libname, 'LIBRARY'):
         return
@@ -612,12 +645,19 @@ def SAMBA_SUBSYSTEM(bld, modname, source_list,
                     include_list='.',
                     public_headers=None,
                     autoproto=None,
-                    cflags=None,
+                    cflags='',
+                    group='main',
+                    config_option=None,
                     init_function_sentinal=None):
 
     if not SET_TARGET_TYPE(bld, modname, 'SUBSYSTEM'):
         return
 
+    # if the caller specifies a config_option, then we create a blank
+    # subsystem if that configuration option was found at configure time
+    if (config_option is not None) and bld.CONFIG_SET(config_option):
+            source_list = ''
+
     # remember empty subsystems, so we can strip the dependencies
     if (source_list == '') or (source_list == []):
         LOCAL_CACHE_SET(bld, 'EMPTY_TARGETS', modname, True)
diff --git a/lib/replace/wscript b/lib/replace/wscript
index ee7965f12d..06ea09d564 100644
--- a/lib/replace/wscript
+++ b/lib/replace/wscript
@@ -36,9 +36,9 @@ def configure(conf):
 
     conf.env['RPATH_ON_INSTALL'] = Options.options.enable_rpath
 
-    conf.DEFUN('_GNU_SOURCE', 1)
-    conf.DEFUN('_XOPEN_SOURCE_EXTENDED', 1)
-    conf.DEFUN('LIBREPLACE_NETWORK_CHECKS', 1)
+    conf.DEFINE('_GNU_SOURCE', 1)
+    conf.DEFINE('_XOPEN_SOURCE_EXTENDED', 1)
+    conf.DEFINE('LIBREPLACE_NETWORK_CHECKS', 1)
 
     conf.CHECK_HEADERS('unistd.h sys/types.h stdlib.h stdio.h stddef.h')
     conf.CHECK_HEADERS('ctype.h locale.h acl/libacl.h compat.h')
@@ -63,10 +63,10 @@ def configure(conf):
     conf.CHECK_HEADERS('resolv.h libintl.h')
 
     if 'HAVE_STDDEF_H' in conf.env and 'HAVE_STDLIB_H' in conf.env:
-        conf.DEFUN('STDC_HEADERS', 1)
+        conf.DEFINE('STDC_HEADERS', 1)
 
     if 'HAVE_SYS_TIME_H' in conf.env and 'HAVE_TIME_H' in conf.env:
-        conf.DEFUN('TIME_WITH_SYS_TIME', 1)
+        conf.DEFINE('TIME_WITH_SYS_TIME', 1)
 
     conf.define('SHLIBEXT', "so", quote=True)
 
@@ -102,8 +102,9 @@ def configure(conf):
     conf.CHECK_FUNCS('asprintf vasprintf setenv unsetenv strnlen strtoull __strtoull')
     conf.CHECK_FUNCS('strtouq strtoll __strtoll strtoq memmem printf memset memcpy')
     conf.CHECK_FUNCS('connect gethostbyname if_nametoindex socketpair')
-    conf.CHECK_FUNCS('inet_ntoa inet_ntop dirfd getdirentries getdents syslog')
-    conf.CHECK_FUNCS('timegm getifaddrs freeifaddrs inet_aton inet_atop crypt')
+    conf.CHECK_FUNCS('inet_ntoa inet_aton inet_ntop inet_pton')
+    conf.CHECK_FUNCS('dirfd getdirentries getdents syslog')
+    conf.CHECK_FUNCS('timegm getifaddrs freeifaddrs  crypt')
 
     conf.CHECK_FUNCS_IN('dlopen dlsym dlerror dlclose', 'dl')
     conf.CHECK_FUNCS_IN('poptGetContext', 'popt')
@@ -188,10 +189,11 @@ def build(bld):
                      'replace')
 
     NET_SOURCES = []
-    if not 'HAVE_INET_NTOA'  in bld.env: NET_SOURCES.append('inet_ntoa.c')
-    if not 'HAVE_INET_ATON'  in bld.env: NET_SOURCES.append('inet_aton.c')
-    if not 'HAVE_INET_ATOP'  in bld.env: NET_SOURCES.append('inet_atop.c')
-    if not 'HAVE_SOCKETPAIR' in bld.env: NET_SOURCES.append('socketpair.c')
+    if bld.CONFIG_SET('HAVE_INET_NTOA'):  NET_SOURCES.append('inet_ntoa.c')
+    if bld.CONFIG_SET('HAVE_INET_ATON'):  NET_SOURCES.append('inet_aton.c')
+    if bld.CONFIG_SET('HAVE_INET_NTOP'):  NET_SOURCES.append('inet_ntop.c')
+    if bld.CONFIG_SET('HAVE_INET_PTON'):  NET_SOURCES.append('inet_pton.c')
+    if bld.CONFIG_SET('HAVE_SOCKETPAIR'): NET_SOURCES.append('socketpair.c')
 
     bld.SAMBA_SUBSYSTEM('LIBREPLACE_NETWORK', NET_SOURCES)