CODEWITHSUNDEEP
haskellhaskell-stack
Tomas Lopez
Tomas Lopez

Reputation: 9

Readline dependencie error with stack

I have this error when I add this dependencie to my project.cabal file.

Warning: defaultUserHooks in Setup script is deprecated.
Configuring readline-1.0.3.0...
checking for gcc... /usr/bin/gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether /usr/bin/gcc accepts -g... yes
checking for /usr/bin/gcc option to accept ISO C89... none needed
checking for GNUreadline.framework... checking for readline... no
checking for tputs in -lncurses... yes
checking for readline in -lreadline... no
checking for rl_readline_version... no
configure: error: readline not found, so this package cannot be built
See `config.log' for more details.

what I have to do to solve this?

Upvotes: 1

Views: 439

Answers (1)

Ayman Osman
Ayman Osman

Reputation: 33

Say your are on OSX

$ brew install readline
[...]
For compilers to find this software you may need to set:
    LDFLAGS:  -L/usr/local/opt/readline/lib
    CPPFLAGS: -I/usr/local/opt/readline/include

Now you know where the library got installed you can set some environmental variables that ./configure will pick up

LDFLAGS=-L/usr/local/opt/readline/lib \
CFLAGS=-I/usr/local/opt/readline/include \
stack install readline --extra-include-dirs=/usr/local/opt/readline/include --extra-lib-dirs=/usr/local/opt/readline/lib

Upvotes: 2

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