r10456: More SCons fixes:

 - Add framework for fallback generating code
 - Move pread / pwrite replacement functions to libreplace
 - Support pidl builds correctly
 - Support asn1 builds correctly
 - Move OS-specific checks to lib/replace/SConscript
(This used to be commit fbbfad0a1f7dedbf48e835a864f8285f283d72f3)

1 files changed, 84 insertions, 8 deletions

diff --git a/source4/lib/charset/SConscript b/source4/lib/charset/SConscript
index 53e5db44bb..b3305579e1 100644
--- a/source4/lib/charset/SConscript
+++ b/source4/lib/charset/SConscript
@@ -1,15 +1,91 @@
+#!/usr/bin/env python
+# tastes like -*- python -*-
+
 Import('hostenv')
-SConscript('../../build/scons/iconv.py')
-#            tastes like -*- python -*-
 
-#conf = Configure( custom_tests = { 'CheckIconv' : CheckIconv })
-#(have_iconv,iconv) = conf.CheckIconv()
-#conf.Finish()
+def _CheckIconvPath(context,path):
+	# Some systems have iconv in libc, some have it in libiconv (OSF/1 and
+  	# those with the standalone portable libiconv installed).
+	context.Message("checking for iconv in " + path + " ... ")
+
+	main = """
+int main()
+{
+	iconv_t cd = iconv_open("","");
+    iconv(cd,NULL,NULL,NULL,NULL);
+    iconv_close(cd);
+	return 0;
+}"""
+
+	have_giconv_iconv = context.TryLink("""
+#include <stdlib.h>
+#include <giconv.h>
+""" + main, '.c')
+	if have_giconv_iconv:
+		context.Result(1)
+		return ("giconv.h", "")
+
+	have_iconv_iconv = context.TryLink("""
+#include <stdlib.h>
+#include <iconv.h>
+""" + main, '.c')
+
+	if have_iconv_iconv:
+		context.Result(1)
+		return ("iconv.h", "")
+
+	#FIXME: Add -lgiconv
+	have_giconv_lib_iconv = context.TryLink("""
+#include <stdlib.h>
+#include <giconv.h>
+""" + main, '.c')
+	if have_giconv_lib_iconv:
+		context.Result(1)
+		return ("giconv.h", "-lgiconv")
+
+	#FIXME: Add -liconv
+	have_iconv_lib_iconv = context.TryLink("""
+#include <stdlib.h>
+#include <iconv.h>
+"""+main,'.c')
+
+	if have_iconv_lib_iconv:
+		context.Result(1)
+		return ("iconv.h", "-liconv")
+
+	return None
+
+def CheckIconv(context):
+	context.Message("checking for iconv ... ")
+	
+	look_dirs = ['/usr','/usr/local','/sw']
+
+	for p in look_dirs:
+		_CheckIconvPath(context,p) #FIXME: Handle return value
+
+	if context.TryRun("""
+#include <iconv.h>
+main() {
+       iconv_t cd = iconv_open("ASCII", "UCS-2LE");
+       if (cd == 0 || cd == (iconv_t)-1) return -1;
+       return 0;
+}
+""", '.c'):
+		context.Result(1)
+		return (1,[])
+	
+	context.Result(0)
+	return (0,[])
 
-#if not have_iconv:
-#	print "Install iconv for better charset compatibility"
+if hostenv['configure']:
+	conf = hostenv.Configure( custom_tests = { 'CheckIconv' : CheckIconv })
+	(have_iconv,iconv) = conf.CheckIconv()
+	conf.Finish()
 
-iconv = []
+	if not have_iconv:
+		print "Install iconv for better charset compatibility"
+else:
+	iconv = [] # FIXME
 
 charset = hostenv.StaticLibrary('charset',['iconv.c','charcnv.c',iconv])
 Export('charset')