Re: [libmicrohttpd] MHD can't find MO files

[silvioprog]

... and looking at gettext() docs, for libraries it must be "#define _(String) dgettext (PACKAGE, String)": https://www.gnu.org/software/gettext/manual/gettext.html#Libraries.

I'm going to try to fix that in the MHD sources and back with some patch ... :-)

On Fri, Feb 24, 2017 at 7:45 PM, silvioprog <address@hidden> wrote:

Complementing, the output translated message (for pt_BR) should be "Falha ao vincular à porta: Permission denied" instead of "Failed to bind to port 80: Permission denied".

On Fri, Feb 24, 2017 at 7:41 PM, silvioprog <address@hidden> wrote:

Hello masters,

I'm trying to translate the MHD messages, but any success in my tests. :-/

My steps (using MHD from trunk):

# build + install

./bootstrap && ./configure && sudo make install-strip && sudo ldconfig

# generate the POT file

xgettext --keyword=_ --language=C --add-comments --sort-output -o libmicrohttpd.pot src/microhttpd/*.c

# generate the PO file

msginit --input=libmicrohttpd.pot --locale=pt_BR --output=libmicrohttpd.po

Now, I open the .po file in the Poedit program and find the message "Failed to bind to port" as showed in the following picture:

https://img42.com/VS64t

After clicking in Save button, Poedit generates the .mo file used in my test:

# creating + building + running the test

mkdir -p test/locale/pt_BR/LC_MESSAGES

mv libmicrohttpd.mo libmicrohttpd.po test/locale/pt_BR/LC_MESSAGES

cd test

cat >main.c <<EOF

#include <stdio.h>

#include <locale.h>

#include <libintl.h>

#include <microhttpd.h>

static int ahc_echo(void *cls, struct MHD_Connection *cnc, const char *url, const char *method, const char *version,

                    const char *upload_data, size_t *upload_data_size, void **ptr) {

    return MHD_NO;

}

int main() {

    setlocale(LC_ALL, "");

    bindtextdomain("libmicrohttpd", "locale");

    textdomain("libmicrohttpd");

    MHD_start_daemon(MHD_USE_SELECT_INTERNALLY | MHD_FEATURE_MESSGES, 80, NULL, NULL, &ahc_echo, NULL, MHD_OPTION_END);

    return 0;

}

EOF

gcc -o test main.c -lmicrohttpd

export LANGUAGE=pt_BR

export LANG=pt_BR

./test

Failed to bind to port 80: Permission denied

OK, now let's go debug it checking errors:

strace -e trace=open ./test 

open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3

open("/usr/local/lib/libmicrohttpd.so.12", O_RDONLY|O_CLOEXEC) = 3

open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libgnutls.so.30", O_RDONLY|O_CLOEXEC) = 3

open("/lib/x86_64-linux-gnu/libgcrypt.so.20", O_RDONLY|O_CLOEXEC) = 3

open("/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3

open("/lib/x86_64-linux-gnu/libz.so.1", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libp11-kit.so.0", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libidn.so.11", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libtasn1.so.6", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libnettle.so.6", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libhogweed.so.4", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libgmp.so.10", O_RDONLY|O_CLOEXEC) = 3

open("/lib/x86_64-linux-gnu/libgpg-error.so.0", O_RDONLY|O_CLOEXEC) = 3

open("/usr/lib/x86_64-linux-gnu/libffi.so.6", O_RDONLY|O_CLOEXEC) = 3

open("/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3

open("/dev/urandom", O_RDONLY)          = 3

open("/proc/sys/crypto/fips_enabled", O_RDONLY) = -1 ENOENT (No such file or directory)

open("/etc/gcrypt/hwf.deny", O_RDONLY)  = -1 ENOENT (No such file or directory)

open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 4

open("/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 5

open("/usr/share/locale/pt_BR/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)

open("/usr/share/locale/pt/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)

open("/usr/share/locale-langpack/pt_BR/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)

open("/usr/share/locale-langpack/pt/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)

Failed to bind to port 80: Permission denied

+++ exited with 0 +++

I.e, any call to the libmicrohttpd.mo file. :-/

So, how to translate MHD properly?

Thank you!

P.S: Looking at mhd_options.h I found the following comment:

/**

 * Macro to make it easy to mark text for translation. Note that

 * we do not actually call gettext() in MHD, but we do make it

 * easy to create a ".po" file so that applications that do want

 * to translate error messages can do so.

 */

#define _(String) (String)

sorry my ignorance, but, if MHD don't call gettext(), how will it translate the massages? o.O

--

Silvio Clécio

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Silvio Clécio

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Silvio Clécio