build:wafsamba: dead code removal in gettext detection
[sfrench/samba-autobuild/.git] / buildtools / wafsamba / wscript
index 7bbec946c5b56ddbb796eb4fed2b7d459e722637..f3e019c0b73bf4280e9038f68691461fac6c5b9c 100755 (executable)
@@ -41,18 +41,15 @@ def set_options(opt):
                    help=("comma separated list of libraries to not apply extension to [%s]" % extension_exception),
                    action="store", dest='PRIVATE_EXTENSION_EXCEPTION', default=extension_exception)
 
-    builtin_defauilt = Options.options['BUILTIN_LIBRARIES_DEFAULT']
+    builtin_default = Options.options['BUILTIN_LIBRARIES_DEFAULT']
     gr.add_option('--builtin-libraries',
-                   help=("command separated list of libraries to build directly into binaries [%s]" % builtin_defauilt),
-                   action="store", dest='BUILTIN_LIBRARIES', default=builtin_defauilt)
+                   help=("command separated list of libraries to build directly into binaries [%s]" % builtin_default),
+                   action="store", dest='BUILTIN_LIBRARIES', default=builtin_default)
 
     gr.add_option('--minimum-library-version',
                    help=("list of minimum system library versions (LIBNAME1:version,LIBNAME2:version)"),
                    action="store", dest='MINIMUM_LIBRARY_VERSION', default='')
 
-    gr.add_option('--disable-shared',
-                   help=("Disable all use of shared libraries"),
-                   action="store_true", dest='disable_shared', default=False)
     gr.add_option('--disable-rpath',
                    help=("Disable use of rpath for build binaries"),
                    action="store_true", dest='disable_rpath_build', default=False)
@@ -78,9 +75,12 @@ def set_options(opt):
                    action="store", dest='PRIVATELIBDIR', default=None)
 
     opt.add_option('--with-libiconv',
-                   help='installation directory for libiconv',
-                   action='store', dest='iconv_open', default=None,
+                   help='additional directory to search for libiconv',
+                   action='store', dest='iconv_open', default='/usr/local',
                    match = ['Checking for library iconv', 'Checking for iconv_open', 'Checking for header iconv.h'])
+    opt.add_option('--without-gettext',
+                   help=("Disable use of gettext"),
+                   action="store_true", dest='disable_gettext', default=False)
 
     gr = opt.option_group('developer options')
 
@@ -114,6 +114,9 @@ def set_options(opt):
     gr.add_option('--git-local-changes',
                   help=("mark version with + if local git changes"),
                   action='store_true', dest='GIT_LOCAL_CHANGES', default=False)
+    gr.add_option('--address-sanitizer',
+                   help=("Enable address sanitizer compile and linker flags"),
+                   action="store_true", dest='address_sanitizer', default=False)
 
     gr.add_option('--abi-check',
                   help=("Check ABI signatures for libraries"),
@@ -189,6 +192,12 @@ def set_options(opt):
                    help='tag release in git at the same time',
                    type='string', action='store', dest='TAG_RELEASE')
 
+    opt.add_option('--extra-python', type=str,
+                    help=("build selected libraries for the specified "
+                          "additional version of Python "
+                          "(example: --extra-python=/usr/bin/python3)"),
+                    metavar="PYTHON", dest='EXTRA_PYTHON', default=None)
+
 
 @wafsamba.runonce
 def configure(conf):
@@ -208,6 +217,8 @@ def configure(conf):
 
     conf.check_tool('compiler_cc')
 
+    conf.CHECK_STANDARD_LIBPATH()
+
     # we need git for 'waf dist'
     conf.find_program('git', var='GIT')
 
@@ -227,7 +238,7 @@ def configure(conf):
         cc.run = Task.compile_fun_noshell('cc', '${CC} ${CCFLAGS} ${CPPFLAGS} ${_CCINCFLAGS} ${_CCDEFFLAGS} ${CC_SRC_F}${SRC} ${CC_TGT_F}${TGT[0].abspath(env)}')[0]
         try:
             try:
-                conf.check(features='cc testd', fragment='int main() {return 0;}\n', ccflags=['-MD'], mandatory=True, msg='Check for -MD')
+                conf.check(features='c testd', fragment='int main() {return 0;}\n', ccflags=['-MD'], mandatory=True, msg='Check for -MD')
             except:
                 pass
             else:
@@ -244,7 +255,6 @@ def configure(conf):
     conf.env.BUNDLED_LIBS = Options.options.BUNDLED_LIBS.split(',')
     conf.env.PRIVATE_LIBS = Options.options.PRIVATE_LIBS.split(',')
     conf.env.BUILTIN_LIBRARIES = Options.options.BUILTIN_LIBRARIES.split(',')
-    conf.env.DISABLE_SHARED = Options.options.disable_shared
     conf.env.NONSHARED_BINARIES = Options.options.NONSHARED_BINARIES.split(',')
 
     conf.env.PRIVATE_EXTENSION = Options.options.PRIVATE_EXTENSION
@@ -259,6 +269,8 @@ def configure(conf):
     conf.env.AUTOCONF_HOST  = Options.options.AUTOCONF_HOST
     conf.env.AUTOCONF_PROGRAM_PREFIX = Options.options.AUTOCONF_PROGRAM_PREFIX
 
+    conf.env.EXTRA_PYTHON = Options.options.EXTRA_PYTHON
+
     if (conf.env.AUTOCONF_HOST and
         conf.env.AUTOCONF_BUILD and
         conf.env.AUTOCONF_BUILD != conf.env.AUTOCONF_HOST):
@@ -293,12 +305,25 @@ def configure(conf):
                     headers='stdio.h',
                     msg='Checking simple C program')
 
-    # see if we can build shared libs
-    if not conf.CHECK_LIBRARY_SUPPORT():
-        conf.env.DISABLE_SHARED = True
+    # Try to find the right extra flags for -Werror behaviour
+    for f in ["-Werror",       # GCC
+              "-errwarn=%all", # Sun Studio
+              "-qhalt=w",     # IBM xlc
+              "-w2",           # Tru64
+             ]:
+        if conf.CHECK_CFLAGS([f], '''
+'''):
+            if not 'WERROR_CFLAGS' in conf.env:
+                conf.env['WERROR_CFLAGS'] = []
+            conf.env['WERROR_CFLAGS'].extend([f])
+            break
+
+    # check which compiler/linker flags are needed for rpath support
+    if not conf.CHECK_LDFLAGS(['-Wl,-rpath,.']) and conf.CHECK_LDFLAGS(['-Wl,-R,.']):
+        conf.env['RPATH_ST'] = '-Wl,-R,%s'
 
     # check for rpath
-    if not conf.env.DISABLE_SHARED and conf.CHECK_LIBRARY_SUPPORT(rpath=True):
+    if conf.CHECK_LIBRARY_SUPPORT(rpath=True):
         support_rpath = True
         conf.env.RPATH_ON_BUILD   = not Options.options.disable_rpath_build
         conf.env.RPATH_ON_INSTALL = (conf.env.RPATH_ON_BUILD and
@@ -318,8 +343,7 @@ def configure(conf):
             # the user can of course always override it.
             conf.env.PRIVATELIBDIR = conf.env.LIBDIR
 
-    if (not conf.env.DISABLE_SHARED and
-        not Options.options.disable_symbol_versions and
+    if (not Options.options.disable_symbol_versions and
         conf.CHECK_LIBRARY_SUPPORT(rpath=support_rpath,
                                    version_script=True,
                                    msg='-Wl,--version-script support')):
@@ -327,7 +351,48 @@ def configure(conf):
     else:
         conf.env.HAVE_LD_VERSION_SCRIPT = False
 
-    if sys.platform == "aix5":
+    if conf.CHECK_CFLAGS(['-fvisibility=hidden'] + conf.env.WERROR_CFLAGS):
+        conf.env.VISIBILITY_CFLAGS = '-fvisibility=hidden'
+        conf.CHECK_CODE('''int main(void) { return 0; }
+                           __attribute__((visibility("default"))) void vis_foo2(void) {}''',
+                        cflags=conf.env.VISIBILITY_CFLAGS,
+                        define='HAVE_VISIBILITY_ATTR', addmain=False)
+
+    # check HAVE_CONSTRUCTOR_ATTRIBUTE
+    conf.CHECK_CODE('''
+            void test_constructor_attribute(void) __attribute__ ((constructor));
+
+            void test_constructor_attribute(void)
+            {
+                return;
+            }
+
+            int main(void) {
+                return 0;
+            }
+            ''',
+            'HAVE_CONSTRUCTOR_ATTRIBUTE',
+            addmain=False,
+            msg='Checking for library constructor support')
+
+        # check HAVE_DESTRUCTOR_ATTRIBUTE
+    conf.CHECK_CODE('''
+            void test_destructor_attribute(void) __attribute__ ((destructor));
+
+            void test_destructor_attribute(void)
+            {
+                return;
+            }
+
+            int main(void) {
+                return 0;
+            }
+            ''',
+            'HAVE_DESTRUCTOR_ATTRIBUTE',
+            addmain=False,
+            msg='Checking for library destructor support')
+
+    if sys.platform.startswith('aix'):
         conf.DEFINE('_ALL_SOURCE', 1, add_to_cflags=True)
         # Might not be needed if ALL_SOURCE is defined
         # conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
@@ -357,11 +422,32 @@ def configure(conf):
     conf.CHECK_INLINE()
 
     # check for pkgconfig
-    conf.check_cfg(atleast_pkgconfig_version='0.0.0')
+    conf.CHECK_CFG(atleast_pkgconfig_version='0.0.0')
 
     conf.DEFINE('_GNU_SOURCE', 1, add_to_cflags=True)
     conf.DEFINE('_XOPEN_SOURCE_EXTENDED', 1, add_to_cflags=True)
 
+    # on Tru64 certain features are only available with _OSF_SOURCE set to 1
+    # and _XOPEN_SOURCE set to 600
+    if conf.env['SYSTEM_UNAME_SYSNAME'] == 'OSF1':
+        conf.DEFINE('_OSF_SOURCE', 1, add_to_cflags=True)
+        conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
+
+    # SCM_RIGHTS is only avail if _XOPEN_SOURCE iŃ• defined on IRIX
+    if conf.env['SYSTEM_UNAME_SYSNAME'] == 'IRIX':
+        conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
+        conf.DEFINE('_BSD_TYPES', 1, add_to_cflags=True)
+
+    # Try to find the right extra flags for C99 initialisers
+    for f in ["", "-AC99", "-qlanglvl=extc99", "-qlanglvl=stdc99", "-c99"]:
+        if conf.CHECK_CFLAGS([f], '''
+struct foo {int x;char y;};
+struct foo bar = { .y = 'X', .x = 1 };
+'''):
+            if f != "":
+                conf.ADD_CFLAGS(f)
+            break
+
     # get the base headers we'll use for the rest of the tests
     conf.CHECK_HEADERS('stdio.h sys/types.h sys/stat.h stdlib.h stddef.h memory.h string.h',
                        add_headers=True)
@@ -393,9 +479,68 @@ def configure(conf):
     else:
         conf.define('SHLIBEXT', "so", quote=True)
 
-    conf.CHECK_CODE('long one = 1; return ((char *)(&one))[0]',
-                    execute=True,
-                    define='WORDS_BIGENDIAN')
+    # First try a header check for cross-compile friendlyness
+    conf.CHECK_CODE(code = """#ifdef __BYTE_ORDER
+                        #define B __BYTE_ORDER
+                        #elif defined(BYTE_ORDER)
+                        #define B BYTE_ORDER
+                        #endif
+
+                        #ifdef __LITTLE_ENDIAN
+                        #define LITTLE __LITTLE_ENDIAN
+                        #elif defined(LITTLE_ENDIAN)
+                        #define LITTLE LITTLE_ENDIAN
+                        #endif
+
+                        #if !defined(LITTLE) || !defined(B) || LITTLE != B
+                        #error Not little endian.
+                        #endif
+                        int main(void) { return 0; }""",
+                            addmain=False,
+                            headers="endian.h sys/endian.h",
+                            define="HAVE_LITTLE_ENDIAN")
+    conf.CHECK_CODE(code = """#ifdef __BYTE_ORDER
+                        #define B __BYTE_ORDER
+                        #elif defined(BYTE_ORDER)
+                        #define B BYTE_ORDER
+                        #endif
+
+                        #ifdef __BIG_ENDIAN
+                        #define BIG __BIG_ENDIAN
+                        #elif defined(BIG_ENDIAN)
+                        #define BIG BIG_ENDIAN
+                        #endif
+
+                        #if !defined(BIG) || !defined(B) || BIG != B
+                        #error Not big endian.
+                        #endif
+                        int main(void) { return 0; }""",
+                            addmain=False,
+                            headers="endian.h sys/endian.h",
+                            define="HAVE_BIG_ENDIAN")
+
+    if not conf.CONFIG_SET("HAVE_BIG_ENDIAN") and not conf.CONFIG_SET("HAVE_LITTLE_ENDIAN"):
+        # That didn't work!  Do runtime test.
+        conf.CHECK_CODE("""union { int i; char c[sizeof(int)]; } u;
+            u.i = 0x01020304;
+            return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;""",
+                          addmain=True, execute=True,
+                          define='HAVE_LITTLE_ENDIAN',
+                          msg="Checking for HAVE_LITTLE_ENDIAN - runtime")
+        conf.CHECK_CODE("""union { int i; char c[sizeof(int)]; } u;
+            u.i = 0x01020304;
+            return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;""",
+                          addmain=True, execute=True,
+                          define='HAVE_BIG_ENDIAN',
+                          msg="Checking for HAVE_BIG_ENDIAN - runtime")
+
+    # Extra sanity check.
+    if conf.CONFIG_SET("HAVE_BIG_ENDIAN") == conf.CONFIG_SET("HAVE_LITTLE_ENDIAN"):
+        Logs.error("Failed endian determination.  The PDP-11 is back?")
+       sys.exit(1)
+    else:
+        if conf.CONFIG_SET("HAVE_BIG_ENDIAN"):
+            conf.DEFINE('WORDS_BIGENDIAN', 1)
 
     # check if signal() takes a void function
     if conf.CHECK_CODE('return *(signal (0, 0)) (0) == 1',