detect required static libs through ldd

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-merge-1.4.x@929 152afb58-edef-0310-8abb-c4023f1b3aa9

SConstruct

@@ -157,7 +157,7 @@ if 1:
 	checkTypes(autoconf, Split('pid_t size_t off_t'))
 
 	autoconf.env.Append( LIBSQLITE3 = '', LIBXML2 = '', LIBMYSQL = '', LIBZ = '', 
-		LIBBZ2 = '', LIBCRYPT = '', LIBMEMCACHE = '', LIBFCGI = '',
+		LIBBZ2 = '', LIBCRYPT = '', LIBMEMCACHE = '', LIBFCGI = '', LIBPCRE = '',
 		LIBLDAP = '', LIBLBER = '', LIBLUA = '', LIBLUALIB = '', LIBDL = '')
 
 	if env['with_fam']:
@@ -179,7 +179,7 @@ if 1:
 
 	if env['with_ldap']:
 		if autoconf.CheckLibWithHeader('ldap', 'ldap.h', 'C'):
-			autoconf.env.Append(CPPFLAGS = [ '-DHAVE_LDAP_H', '-DHAVE_LIBLDAP' ], LIBLDAP = [ 'ldap' ])
+			autoconf.env.Append(CPPFLAGS = [ '-DHAVE_LDAP_H', '-DHAVE_LIBLDAP' ], LIBLDAP = 'ldap')
 		if autoconf.CheckLibWithHeader('lber', 'lber.h', 'C'):
 			autoconf.env.Append(CPPFLAGS = [ '-DHAVE_LBER_H', '-DHAVE_LIBLBER' ], LIBLBER = 'lber')
 
@@ -198,12 +198,16 @@ if 1:
 	if env['with_lua']:
 		if autoconf.CheckLibWithHeader('lua', 'lua.h', 'C'):
 			autoconf.env.Append(CPPFLAGS = [ '-DHAVE_LUA_H', '-DHAVE_LIBLUA' ], LIBLUA = 'lua', LIBLUALIB = 'lualib')
-
+	
+	ol = env['LIBS']
 	if autoconf.CheckLibWithHeader('fcgi', 'fastcgi.h', 'C'):
 		autoconf.env.Append(LIBFCGI = 'fcgi')
+	env['LIBS'] = ol
 
+	ol = env['LIBS']
 	if autoconf.CheckLibWithHeader('dl', 'dlfcn.h', 'C'):
 		autoconf.env.Append(LIBDL = 'dl')
+	env['LIBS'] = ol
 
 	if autoconf.CheckType('socklen_t', '#include <unistd.h>\n#include <sys/socket.h>\n#include <sys/types.h>'):
 		autoconf.env.Append(CPPFLAGS = [ '-DHAVE_SOCKLEN_T' ])

src/SConscript

@@ -1,3 +1,7 @@
+import os
+import re
+import types
+
 Import('env')
 
 common_src = Split("buffer.c log.c \
@@ -96,7 +100,29 @@ staticbin = staticenv.Program('lighttpd-semi-static',
 
 ## you might have to adjust the list of libs and the order for your setup
 ## this is tricky, be warned
-fullstaticlib = staticlib + [ 'sasl2', 'gssapi_krb5', 'ssl', 'crypto', 'crypt', 'krb5', 'k5crypto', 'krb5support', 'com_err', 'resolv' ] 
+fullstaticlib = []
+
+## try to calculate the libs for fullstatic with ldd
+## 1. find the lib
+## 2. check the deps
+## 3. add them to the libs
+searchlibs = os.pathsep.join([ '/lib/', '/usr/lib/', '/usr/local/lib/' ])
+lddre = re.compile(r'^\s+lib([^=-]+)(?:-[\.0-9]+)?\.so\.[0-9]+ =>', re.MULTILINE)
+for libs in staticlib:
+	if type(libs) is types.StringType: libs = [ libs ]
+	for lib in libs:
+		fullstaticlib += [ lib ]
+		solibpath = env.WhereIs('lib' + lib + '.so', searchlibs)
+		fullstaticlib += [ lib ]
+		if solibpath is None:
+			continue
+
+		f = os.popen('ldd ' + solibpath, 'r')
+		for aword in lddre.findall(f.read()):
+			fullstaticlib += [ aword ]
+		f.close
+
+
 fullstaticbin = staticenv.Program('lighttpd-static', 
 	staticobj, 
 	LIBS = fullstaticlib,