Comment 175 for bug 518056

Hello Everyone. I've been following this thread and tried every fix here to no avail.
I live in Canada and I want to keep my Ubuntu in English, with Canadian Locale because most of the time I'll be writing in english and working regularly with Canadian (very similar to us) locale, I guess... but when I'm relaxing Talking to family or friends in Brasil, I'll need accents like áéíúú and the f'ing ç.

Right now the closest I've come was having 2 "entry methods" that I switch back and forth.
1) English (Canada) for when I'm writing in english and
2) English (US, International with DeadKeys) for when I want to write Portuguese-BR.

Here is what I've done so far

My Ubuntu version to begin with:

geraldo@geraldubuntu:~$ uname -v
#44~16.04.1-Ubuntu SMP Thu Nov 9 15:37:44 UTC 2017

Language support: English (Canada)
Keyboard input method (None) (had tried with iBus) no difference.
Those two keyboards layout as mentioned.

Two changes in ~/.profile (Comment #115 and other):

geraldo@geraldubuntu:~$ cat ~/.profile | grep export
export LC_CTYPE=pt_BR.UTF-8
export XCOMPOSEFILE=/usr/share/X11/locale/pt_BR.UTF-8/Compose

Here is how my locale look like, so I know comment #115 is set properly:

geraldo@geraldubuntu:~$ locale
LANG=en_CA.UTF-8
LANGUAGE=en_CA:en
LC_CTYPE=pt_BR.UTF-8
LC_NUMERIC="en_CA.UTF-8"
LC_TIME="en_CA.UTF-8"
LC_COLLATE="en_CA.UTF-8"
LC_MONETARY="en_CA.UTF-8"
LC_MESSAGES="en_CA.UTF-8"
LC_PAPER="en_CA.UTF-8"
LC_NAME="en_CA.UTF-8"
LC_ADDRESS="en_CA.UTF-8"
LC_TELEPHONE="en_CA.UTF-8"
LC_MEASUREMENT="en_CA.UTF-8"
LC_IDENTIFICATION="en_CA.UTF-8"
LC_ALL=

Also tried edditing other files... please note:

geraldo@geraldubuntu:~$ cat /usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules.cache | grep cedilla
"/usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules/im-cedilla.so"
"cedilla" "Cedilla" "gtk30" "/usr/share/locale" "az:ca:co:fr:gv:oc:pt:sq:tr:wa:en"
geraldo@geraldubuntu:~$ cat /usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules.cache | grep cedilla
"/usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules/im-cedilla.so"
"cedilla" "Cedilla" "gtk30" "/usr/share/locale" "az:ca:co:fr:gv:oc:pt:sq:tr:wa:en"

And I'm still getting ć.

Any tips for me? This is frustrating :/

Thank you for your time.