wscript: add -fPIC for static libraries globally

public/wscript

@@ -12,8 +12,8 @@ def options(opt):
 	return
 
 def configure(conf):
-	# public is part of shared libraries
-	conf.env.CFLAGS += conf.env.CFLAGS_cshlib
+	# stub
+	return
 
 def build(bld):
 	source = bld.path.ant_glob(['*.c'])

wscript

@@ -96,6 +96,11 @@ def configure(conf):
 		conf.load('msvc msdev msvs')
 	conf.load('xcompile compiler_c compiler_cxx gitversion clang_compilation_database')
 
+	# Every static library must have fPIC
+	if conf.env.DEST_OS != 'win32' and '-fPIC' in conf.env.CFLAGS_cshlib:
+		conf.env.append_unique('CFLAGS_cstlib', '-fPIC')
+		conf.env.append_unique('CXXFLAGS_cxxstlib', '-fPIC')
+
 	# modify options dictionary early
 	if conf.env.DEST_OS2 == 'android':
 		conf.options.ALLOW64 = True # skip pointer length check