X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=wscript;h=f9aa784397dae9599ae64e7c017ddc3cb652c87a;hb=47245166de02206389a0cb18aae7de35f8517c7d;hp=f49b491082ce3c90cb2b6d5a9c7e3cc28a39b9be;hpb=e3f056b2c857c0428d9eaca73639b34333311767;p=dcpomatic.git

diff --git a/wscript b/wscript
index f49b49108..f9aa78439 100644
--- a/wscript
+++ b/wscript
@@ -75,6 +75,7 @@ def options(opt):
     opt.add_option('--variant',           help='build variant (swaroop-studio, swaroop-theater)', choices=['swaroop-studio', 'swaroop-theater'])
     opt.add_option('--use-lld',           action='store_true', default=False, help='use lld linker')
     opt.add_option('--enable-disk',       action='store_true', default=False, help='build dcpomatic2_disk tool; requires Boost process, lwext4 and nanomsg libraries')
+    opt.add_option('--warnings-are-errors', action='store_true', default=False, help='build with -Werror')
 
 def configure(conf):
     conf.load('compiler_cxx')
@@ -106,22 +107,24 @@ def configure(conf):
                                        '-Wall',
                                        '-Wextra',
                                        '-Wwrite-strings',
-                                       # Remove auto_ptr warnings from libxml++-2.6
-                                       '-Wno-deprecated-declarations',
+                                       # I tried and failed to ignore these with _Pragma
                                        '-Wno-ignored-qualifiers',
-                                       '-Wno-parentheses',
                                        '-D_FILE_OFFSET_BITS=64'])
 
     if conf.options.force_cpp11:
         conf.env.append_value('CXXFLAGS', ['-std=c++11', '-DBOOST_NO_CXX11_SCOPED_ENUMS'])
 
+    if conf.options.warnings_are_errors:
+        conf.env.append_value('CXXFLAGS', '-Werror')
+
     if conf.env['CXX_NAME'] == 'gcc':
         gcc = conf.env['CC_VERSION']
-        if int(gcc[0]) >= 4 and int(gcc[1]) > 1:
-            conf.env.append_value('CXXFLAGS', ['-Wno-unused-result'])
-        if int(gcc[0]) >= 9:
-            conf.env.append_value('CXXFLAGS', ['-Wno-deprecated-copy'])
+        if int(gcc[0]) >= 8:
+            # I tried and failed to ignore these with _Pragma
+            conf.env.append_value('CXXFLAGS', ['-Wno-cast-function-type'])
         have_c11 = int(gcc[0]) >= 4 and int(gcc[1]) >= 8 and int(gcc[2]) >= 1
+        # Most gccs still give these warnings from boost::optional
+        conf.env.append_value('CXXFLAGS', ['-Wno-maybe-uninitialized'])
     else:
         have_c11 = False
 
@@ -202,11 +205,8 @@ def configure(conf):
 
     # OSX
     if conf.env.TARGET_OSX:
-        conf.env.append_value('CXXFLAGS', ['-DDCPOMATIC_OSX', '-Wno-unused-function', '-Wno-unused-parameter', '-Wno-unused-local-typedef', '-Wno-potentially-evaluated-expression'])
+        conf.env.append_value('CXXFLAGS', ['-DDCPOMATIC_OSX'])
         conf.env.append_value('LINKFLAGS', '-headerpad_max_install_names')
-    else:
-        # Avoid the endless warnings about _t uninitialized in optional<>
-        conf.env.append_value('CXXFLAGS', '-Wno-maybe-uninitialized')
 
     #
     # Dependencies.
@@ -321,10 +321,10 @@ def configure(conf):
         if conf.options.workaround_gssapi:
             conf.env.LIB_SSH = ['gssapi_krb5']
     else:
-        conf.check_cc(fragment="""
+        conf.check_cxx(fragment="""
                                #include <libssh/libssh.h>\n
                                int main () {\n
-                               ssh_session s = ssh_new ();\n
+                               ssh_new ();\n
                                return 0;\n
                                }
                                """,
@@ -500,7 +500,7 @@ def configure(conf):
 
         conf.check_cxx(fragment="""
     			    #include <boost/thread.hpp>\n
-    			    int main() { boost::thread t (); }\n
+			    int main() { boost::thread t; }\n
 			    """,
                        msg='Checking for boost threading library',
                        libpath='/usr/local/lib',
@@ -549,8 +549,9 @@ def configure(conf):
                 deps.append('boost_filesystem%s' % boost_lib_suffix)
             conf.check_cxx(fragment="""
                                 #include <boost/process.hpp>\n
-                                int main() { boost::process::child* c = new boost::process::child("foo"); }\n
+                                int main() { new boost::process::child("foo"); }\n
                                 """,
+                           cxxflags='-Wno-unused-parameter',
                            msg='Checking for boost process library',
                            lib=deps,
                            uselib_store='BOOST_PROCESS')