166 lines
5.2 KiB
Diff
166 lines
5.2 KiB
Diff
LD_PRELOAD by itself only works with Cygwin builtin functions, but
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textdomain() and friends come from libintl. In order to override
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those functions, we have to "replace" cygintl-?.dll since functions are
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bound to a DLL name at link time. Our replacement will be used since
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it is loaded first by LD_PRELOAD.
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But as we are making this *the* libintl, we need to provide
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pass-throughs for the other functions which we're not overriding,
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otherwise Locale::gettext won't load (not to mention the program
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that we're trying to help2man).
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--- help2man-1.46.5/Makefile.in 2014-10-09 13:03:01.000000000 +0200
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+++ help2man-1.46.5/Makefile.in 2015-05-12 14:46:52.995521900 +0200
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@@ -76,7 +76,8 @@
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fi
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install_preload: install_dirs preload
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- $(INSTALL_PROGRAM) $(preload).so $(DESTDIR)$(pkglibdir)
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+ $(INSTALL_PROGRAM) lib/cygintl-8.dll $(DESTDIR)$(pkglibdir)
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+ ln -sf cygintl-8.dll $(DESTDIR)$(pkglibdir)/$(preload).so
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install_l10n: install_dirs msg_l10n man_l10n info_l10n
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set -e; \
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@@ -144,7 +146,9 @@
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preload: $(preload).so
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$(preload).so: $(srcdir)/$(preload).c
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- $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -o $@ -fPIC -shared $? $(LIBS)
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+ mkdir -p lib
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+ $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -o lib/cygintl-8.dll -shared $? $(LIBS)
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+ ln -sf lib/cygintl-8.dll $@
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man: $(target).1
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$(target).1: $(srcdir)/$(target).PL $(srcdir)/$(target).h2m.PL
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--- help2man-1.46.5/bindtextdomain.c 2009-11-13 00:01:34.000000000 -0600
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+++ help2man-1.46.5/bindtextdomain.c 2011-12-29 00:24:33.608078600 -0600
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@@ -27,12 +27,34 @@ static char *(*r_textdomain)(char const
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static char *(*r_bindtextdomain)(char const *, char const *) = 0;
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static char *(*r_bind_textdomain_codeset)(char const *, char const *) = 0;
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+#ifdef __CYGWIN__
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+static void *RTLD_NEXT = 0;
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+static char *(*r_gettext)(const char *) = 0;
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+static char *(*r_dgettext)(const char *, const char *) = 0;
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+static char *(*r_dcgettext)(const char *, const char *, int) = 0;
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+static char *(*r_ngettext)(const char *, const char *, unsigned long int) = 0;
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+static char *(*r_dngettext)(const char *, const char *, const char *,
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+ unsigned long int) = 0;
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+static char *(*r_dcngettext)(const char *, const char *, const char *,
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+ unsigned long int, int) = 0;
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+static char *(*r_setlocale)(int, const char *) = 0;
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+
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+#define SYM(sym) libintl_ ## sym
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+#else
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+#define SYM(sym) sym
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+#endif
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+
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void setup()
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{
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static int done = 0;
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if (done++)
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return;
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+#ifdef __CYGWIN__
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+ if (!(RTLD_NEXT = dlopen("/usr/bin/cygintl-8.dll", RTLD_LAZY)))
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+ die("libintl8 not found");
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+#endif
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+
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if (!(e_textdomain = getenv("TEXTDOMAIN")))
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die("TEXTDOMAIN not set");
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@@ -48,9 +70,19 @@ void setup()
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if (!(r_bind_textdomain_codeset = dlsym(RTLD_NEXT,
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"bind_textdomain_codeset")))
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die("can't find symbol \"bind_textdomain_codeset\"");
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+
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+#ifdef __CYGWIN__
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+ r_gettext = dlsym(RTLD_NEXT, "libintl_gettext");
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+ r_dgettext = dlsym(RTLD_NEXT, "libintl_dgettext");
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+ r_dcgettext = dlsym(RTLD_NEXT, "libintl_dcgettext");
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+ r_ngettext = dlsym(RTLD_NEXT, "libintl_ngettext");
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+ r_dngettext = dlsym(RTLD_NEXT, "libintl_dngettext");
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+ r_dcngettext = dlsym(RTLD_NEXT, "libintl_dcngettext");
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+ r_setlocale = dlsym(RTLD_NEXT, "libintl_setlocale");
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+#endif
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}
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-char *textdomain(char const *domainname)
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+char *SYM(textdomain)(char const *domainname)
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{
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char *r;
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setup();
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@@ -61,7 +93,7 @@ char *textdomain(char const *domainname)
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return r;
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}
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-char *bindtextdomain(char const *domainname, char const *dirname)
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+char *SYM(bindtextdomain)(char const *domainname, char const *dirname)
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{
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char const *dir = dirname;
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setup();
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@@ -71,7 +103,7 @@ char *bindtextdomain(char const *domainn
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return r_bindtextdomain(domainname, dir);
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}
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-char *bind_textdomain_codeset(char const *domainname, char const *codeset)
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+char *SYM(bind_textdomain_codeset)(char const *domainname, char const *codeset)
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{
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char *r;
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setup();
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@@ -81,3 +113,54 @@ char *bind_textdomain_codeset(char const
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return r;
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}
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+
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+#ifdef __CYGWIN__
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+
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+char *libintl_gettext(const char *msgid)
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+{
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+ setup();
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+ return r_gettext(msgid);
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+}
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+
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+char *libintl_dgettext (const char *domainname, const char *msgid)
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+{
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+ setup();
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+ return r_dgettext(domainname, msgid);
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+}
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+
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+char *libintl_dcgettext (const char *domainname, const char *msgid,
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+ int category)
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+{
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+ setup();
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+ return r_dcgettext (domainname, msgid, category);
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+}
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+
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+char *libintl_ngettext (const char *msgid1, const char *msgid2,
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+ unsigned long int n)
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+{
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+ setup();
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+ return r_ngettext (msgid1, msgid2, n);
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+}
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+
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+char *libintl_dngettext (const char *domainname, const char *msgid1,
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+ const char *msgid2, unsigned long int n)
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+{
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+ setup();
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+ return r_dngettext (domainname, msgid1, msgid2, n);
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+}
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+
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+char *libintl_dcngettext (const char *domainname,
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+ const char *msgid1, const char *msgid2,
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+ unsigned long int n, int category)
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+{
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+ setup();
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+ return r_dcngettext (domainname, msgid1, msgid2, n, category);
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+}
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+
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+char *libintl_setlocale (int i, const char *s)
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+{
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+ setup();
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+ return r_setlocale (i, s);
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+}
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+
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+#endif
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