osx

Compiling the IMAP extension for PHP 5.3.15 with OS X 10.8.3

I have been testing the Drupal support module locally which features the ability to create tickets from email messages to an IMAP inbox. It requires the imap_open() PHP function provided by the imap PHP extension, which unfortunately is not included in the OS X builds of PHP.

ivucica has published a wonderful script to his blog that compiles the IMAP extension without having to recompile PHP entirely, but unfortunately it was not working for me and nobody else seemed to have my problem either. Compiling the imap library and PCRE went very smoothly, but when it came time to build the PHP extension this error appeared during ./configure:

checking whether build with IMAP works... no
configure: error: build test failed. Please check the config.log for details.

Well, crap. I check config.log and determine it's a linking failure:

configure: program exited with status 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define COMPILE_DL_IMAP 1
| #define HAVE_IMAP 1
| #define HAVE_IMAP2000 1
| #define HAVE_IMAP2004 1
| #define HAVE_NEW_MIME2TEXT 1
| #define HAVE_LIBPAM 1
| #define HAVE_IMAP_KRB 1
| #define HAVE_IMAP_SSL 1
| /* end confdefs.h.  */
|
|
| #if defined(__GNUC__) && __GNUC__ >= 4
| # define PHP_IMAP_EXPORT __attribute__ ((visibility("default")))
| #else
| # define PHP_IMAP_EXPORT
| #endif
|
|       PHP_IMAP_EXPORT void mm_log(void){}
|       PHP_IMAP_EXPORT void mm_dlog(void){}
|       PHP_IMAP_EXPORT void mm_flags(void){}
|       PHP_IMAP_EXPORT void mm_fatal(void){}
|       PHP_IMAP_EXPORT void mm_critical(void){}
|       PHP_IMAP_EXPORT void mm_nocritical(void){}
|       PHP_IMAP_EXPORT void mm_notify(void){}
|       PHP_IMAP_EXPORT void mm_login(void){}
|       PHP_IMAP_EXPORT void mm_diskerror(void){}
|       PHP_IMAP_EXPORT void mm_status(void){}
|       PHP_IMAP_EXPORT void mm_lsub(void){}
|       PHP_IMAP_EXPORT void mm_list(void){}
|       PHP_IMAP_EXPORT void mm_exists(void){}
|       PHP_IMAP_EXPORT void mm_searched(void){}
|       PHP_IMAP_EXPORT void mm_expunged(void){}
|       void rfc822_output_address_list(void);
|       void (*f)(void);
|       char foobar () {f = rfc822_output_address_list;}
|
|     char foobar();
|     int main() {
|       foobar();
|       return 0;
|     }
|
configure:6808: result: no
configure:6819: checking whether build with IMAP works
configure:6863: cc -o conftest -g -O2   conftest.c  -Wl,-rpath,/usr/local/imap-2007f/lib -L/usr/local/imap-2007f/lib -lc-client -lpam  -lkrb5  >&5
Undefined symbols for architecture x86_64:
  "_BIO_free", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_BIO_new_mem_buf", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_BIO_new_socket", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_ERR_error_string", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
      _ssl_genkey in libc-client.a(osdep.o)
  "_ERR_get_error", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
      _ssl_genkey in libc-client.a(osdep.o)
  "_ERR_load_crypto_strings", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_EVP_PKEY_free", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_PEM_read_bio_PrivateKey", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_PEM_read_bio_X509", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_RAND_seed", referenced from:
      _ssl_onceonlyinit in libc-client.a(osdep.o)
  "_RSA_generate_key", referenced from:
      _ssl_genkey in libc-client.a(osdep.o)
  "_SSL_CTX_ctrl", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_CTX_free", referenced from:
      _ssl_abort in libc-client.a(osdep.o)
  "_SSL_CTX_load_verify_locations", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_CTX_new", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_CTX_set_cipher_list", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_SSL_CTX_set_default_verify_paths", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_CTX_set_tmp_rsa_callback", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_SSL_CTX_set_verify", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_CTX_use_PrivateKey", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_CTX_use_RSAPrivateKey_file", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_SSL_CTX_use_certificate", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_CTX_use_certificate_chain_file", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_SSL_accept", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_SSL_ctrl", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_free", referenced from:
      _ssl_abort in libc-client.a(osdep.o)
  "_SSL_get_error", referenced from:
      _ssl_getdata in libc-client.a(osdep.o)
      _ssl_sout in libc-client.a(osdep.o)
  "_SSL_get_fd", referenced from:
      _ssl_getdata in libc-client.a(osdep.o)
      _ssl_server_input_wait in libc-client.a(osdep.o)
  "_SSL_get_peer_certificate", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_library_init", referenced from:
      _ssl_onceonlyinit in libc-client.a(osdep.o)
  "_SSL_load_error_strings", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_SSL_new", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_pending", referenced from:
      _ssl_getdata in libc-client.a(osdep.o)
      _ssl_server_input_wait in libc-client.a(osdep.o)
  "_SSL_read", referenced from:
      _ssl_getdata in libc-client.a(osdep.o)
      _ssl_server_input_wait in libc-client.a(osdep.o)
  "_SSL_set_bio", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_set_connect_state", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_set_fd", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_SSL_shutdown", referenced from:
      _ssl_abort in libc-client.a(osdep.o)
  "_SSL_state", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSL_write", referenced from:
      _ssl_start in libc-client.a(osdep.o)
      _ssl_sout in libc-client.a(osdep.o)
  "_SSLv23_client_method", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_SSLv23_server_method", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_TLSv1_client_method", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_TLSv1_server_method", referenced from:
      _ssl_server_init in libc-client.a(osdep.o)
  "_X509_NAME_oneline", referenced from:
      _ssl_open_verify in libc-client.a(osdep.o)
  "_X509_STORE_CTX_get_current_cert", referenced from:
      _ssl_open_verify in libc-client.a(osdep.o)
  "_X509_STORE_CTX_get_error", referenced from:
      _ssl_open_verify in libc-client.a(osdep.o)
  "_X509_free", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_X509_get_ext_d2i", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_X509_get_subject_name", referenced from:
      _ssl_open_verify in libc-client.a(osdep.o)
  "_X509_verify_cert_error_string", referenced from:
      _ssl_open_verify in libc-client.a(osdep.o)
  "_sk_num", referenced from:
      _ssl_start in libc-client.a(osdep.o)
  "_sk_value", referenced from:
      _ssl_start in libc-client.a(osdep.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I couldn't figure out why it wasn't picking up the symbols from libssl, even when manually trying to compile said file and adding a -lssl flag.

After an hour of struggling with it and my debugging efforts going nowhere, I try adding -lcrypto for the hell of it and it works!

tl;dr, if you get this error then simply replace the following line of the aformentioned script:

./configure --with-imap=/usr/local/imap-2007f --with-kerberos --with-imap-ssl

With the following line that adds the required linker flags:
LDFLAGS="-lssl -lcrypto" ./configure --with-imap=/usr/local/imap-2007f --with-kerberos --with-imap-ssl

That's it!

Rating: 

Installing GIMP on OS X

GIMP is a great program, but I always found it was a bit annoying to use on OS X (Leopard). First of all, whenever X11 starts, a new xterm window along with it. Besides that, when switching windows you need two clicks before GIMP (or any other program, really) registers the click and actually does something - the first click just switches the active window. Seeing as GIMP has it's tool palette in a separate window, this quickly became extremely irritating.

After a quick google, I found many sources saying that to disable xterm, I needed to copy /private/etc/X11/xinit/xinitrc to ~/.xinitrc and edit out the "xterm &" line inside. That's easy enough, but the only problem is that on Leopard with the latest X11 from XQuartz (2.3.2.1 at the time of writing) installed, /private/etc/X11/xinit/xinitrc doesn't exist! Although /usr/X11/lib/X11/xinit/xinitrc does, editing out all references to xterm doesn't work anyways. Instead, the app_to_run preference needs to be modified:

defaults write org.x.X11 app_to_run /usr/bin/true

/usr/bin/true is a command that does nothing (literally), so this essentially tells X11 to autostart nothing. I moved onto my next problem and found that to solve the two-clicks problem, the solution was to enable the "focus follows mouse" option like this:

defaults write org.x.x11 FocusFollowsMouse -string YES

I've been using that for a few months and I find it's still pretty annoying, but it's still less annoying than having to click twice on everything. Fortunately, I recently discovered the "wm_click_through" preference which is exactly what I had been looking for all along:

defaults write org.x.x11 FocusFollowsMouse -string NO
defaults write org.x.X11 wm_click_through -bool true

Now X11's window focus is back to normal, and clicking on inactive windows works as expected; it switches the window and activates the widget you clicked on. Problems solved!

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