Unable to link library Libtermcap with g++

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#1

Hello,

I’ve install Termcap with help of zypper as you can see below

zypper info termcap

Loading repository data…
Reading installed packages…

Information for package termcap:

Repository : Main Repository (OSS)
Name : termcap
Version : 2.0.8-1045.2
Arch : x86_64
Vendor : openSUSE
Installed Size : 610.5 KiB
Installed : Yes
Status : up-to-date
Source package : termcap-2.0.8-1045.2.src
Summary : The Termcap Library
Description :
The termcap library.

I see the library in /usr/lib64

but when i try to link that library i get:
patrick@linux-wzyg:~/projects/gnucap/gnucap/lib> g++ test_readline.cc -lreadline -ltermcap
/usr/lib64/gcc/x86_64-suse-linux/8/…/…/…/…/x86_64-suse-linux/bin/ld: cannot find -ltermcap
collect2: error: ld returned 1 exit status

I don’t understand how it is different from eg. readline

thanks for your help

#2

>rpm -ql termcap shows

/usr/include/curses
/usr/include/curses/curses.h
/usr/include/termcap
/usr/include/termcap/termcap.h
/usr/lib64/curses
/usr/lib64/curses/libcurses.a
/usr/lib64/curses/libcurses.so
/usr/lib64/libcurses.so.1
/usr/lib64/libcurses.so.1.0.0
/usr/lib64/libtermcap.so.2
/usr/lib64/libtermcap.so.2.0.8
/usr/lib64/termcap
/usr/lib64/termcap/libtermcap.a
/usr/lib64/termcap/libtermcap.so

So it installs libtermcap.so to /usr/lib64/termcap , which isn’t in the default searchpath of ld. You will need to add a -L/usr/lib64/termcap to the compiler/linker flags.

IIRC libtermcap.so is hidden in that subdirectory because using libtermcap is considered to be deprecated and it is recommended to use ncurses instead.

#3

thanks. ir works with that directory.
nice to learn on the rpm query command.
i was confused as I saw termcap.so.2 in the root folder