Opensource SMTP client with TLS/SSL for Gmail SMTP server. (How to cross-compilation)

     需求:想要能利用Gmail的SMTP server來發信，所以一定要有支援TLS/SSL功能
順便筆記一下
a.我選了這個opensource的STMP Client。Thanks gosu~
http://cleancode.org/projects/email

b.
先試試./configure --build=powerpc-linux-gnu --host=powerpc-linux CC=powerpc-linux-gcc，可惜出現error。
直接./configure，再來改Makefile.

c.查一下有哪些Makefile
[root@new-host-1052 email-3.1.3]# find . -name "Makefile"
./dlib/Makefile
./src/Makefile
./Makefile
把三個Makefile裡面的CC = powerpc-linux-gcc

d.執行./configure時checking for SSL_library_init in -lssl... no

vim configure的script。 改check condition
if test $ac_cv_lib_ssl_SSL_library_init = yes; then --> if test $ac_cv_lib_ssl_SSL_library_init = no; then
  cat >>confdefs.h <<_aceof p="">#define HAVE_LIBSSL 1
或是
vim ./include/config.h
硬改成1
/* Define to 1 if you have the `ssl' library (-lssl). */
#define HAVE_LIBSSL 1

e.遇到email-3.1.3/src/progress_bar.c:137: undefined reference to `rpl_malloc'

google說直接comment out這兩行就行了。
/* Define to rpl_malloc if the replacement function should be used. */
//#define malloc rpl_malloc
/* Define to rpl_realloc if the replacement function should be used. */
//#define realloc rpl_realloc

f.編成功後在email-3.1.3/src可以看到email這隻application。
[root@new-host-1052 src]# file email
email: ELF 32-bit MSB executable, PowerPC, version 1 (SYSV), dynamically linked (uses shared libs), not stripped

確認機器上有openssl的library
g.ls /usr/lib/
libcrypto.so            libssl.so
libcrypto.so.0.9.8      libssl.so.0.9.8

h. tftp 放到機器上。
[root@localhost /sbin]# tftp -gr email 192.168.4.215
email                100% |*******************************|   211k --:--:-- ETA

I.
 email -f"IloveTW@gmail.com" -n"IseeYOU" -s"SONYYO" 
-r"smtp.gmail.com" -mlogin -u"karose.tzu@gmail.com" -i"ycm2uru9" -tls -V "carlos
hsu@embeddedlinux.com.tw" < test.msg 
Connecting to server smtp.gmail.com on port 25

成功的收到信件.........收工!!!!!