cross compile ghc curses not found - raspberry-pi

Question

I tried to crosscompile from linux i386 to arm-linux-gnueabihf, but i cant make it happen, because it gives me this weird error while running 'make':
checking ncurses.h usability... yes
checking ncurses.h presence... yes
checking for ncurses.h... yes
checking for setupterm in -ltinfo... no
checking for setupterm in -lncursesw... no
checking for setupterm in -lncurses... no
checking for setupterm in -lcurses... no
configure: error: in '/home/edi/ghc_cross/ghc/libraries/terminfo':
configure: error: curses library not found, so this package cannot be built
See 'config.log' for more details
make[2]: *** [libraries/terminfo/dist-install/package-data.mk] Error 1
make[1]: *** [all_libraries/terminfo] Error 2
make[1]: Leave Directory '/home/edi/ghc_cross/ghc'
make: *** [all] Error 2
What have i done:
-) Compiled 7.8.0 from github (The log says 'That should have been 7.8.0', i chose 7.8 because i thought it would be more stable for crosscompiling) to my i386 (normal boot, configure, make, make install). This worked fine
-) installed newest llvm from svn (LLVM version 3.5svn)
-) replaced the libffi-3.0.11.tar.gz in ghc/libffi-tarballs with libffi-3.0.13
-) added this version of mk/build.mk:
SRC_HC_OPTS = -H32m _o -fasm -Rghc-timing
GhcStage1HcOpts = -O -fasm
GhcStage2HcOpts = -O0 -DDEBUG -Wall
GhcLibHcOpts = -O -fasm -XGenerics
GhcLibWays = v dyn
SplitObjs = NO
Stage1Only = YES
-) downloaded the sourcecode of ncurses from ​ftp.de.debian.org/debian/pool/main/n/ncurses/ncurses_5.9.orig.tar.gz and builded it with "./configure arm-linux-gnueabihf --with-gcc=arm-linux-gnueabihf-gcc --target=arm-linux-gnueabihf --prefix=/usr/arm-linux-gnueabihf
" + "make". afterwards i added the folder to my $PATH
-)did "perl boot", "./configure --target=arm-linux-gnueabihf --with-gcc=arm-linux-gnueabihf-gcc --prefix=/usr/arm-linux-gnueabihf" and "make".
./configure worked, but make gives me this weird error.
I also tried copying all included files from ncurses to the libraries/terminfo folder, but that also didn't work. I think the mistake is somewhere in the building process, but i'm not exactly sure, so thats why i'm posting this bug.
I also tried getting the libncurses5-dev.deb and libtinfo-dev from my Raspberry pi with "apt-get download libncurses5-dev" and "apt-get download libncurses5-dev" and copied them to my i386, extracted them and added them to my $PATH
Does anyone have an idea about how i can fix that problem with curses?
PS: i also made sure that i met the prerequirements mentioned in ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Linux and ​ghc.haskell.org/trac/ghc/wiki/Building/CrossCompiling
Edit: this is the log of my config.log:
`
configure:3400: checking for setupterm in -lcurses
configure:3425: arm-linux-gnueabihf-gcc -o conftest -fno-stack-protector conftest.c -lcurses >&5
/usr/lib/gcc-cross/arm-linux-gnueabihf/4.8/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/../lib/libcurses.a when searching for -lcurses
/usr/lib/gcc-cross/arm-linux-gnueabihf/4.8/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libcurses.a when searching for -lcurses
/usr/lib/gcc-cross/arm-linux-gnueabihf/4.8/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lcurses
collect2: error: ld returned 1 exit status
configure:3425: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "Haskell terminfo package"
| #define PACKAGE_TARNAME "terminfo"
| #define PACKAGE_VERSION "0.2"
| #define PACKAGE_STRING "Haskell terminfo package 0.2"
| #define PACKAGE_BUGREPORT "judah dot jacobson at gmail dot com"
| #define PACKAGE_URL ""
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| /* end confdefs.h. */
|
| /* Override any GCC internal prototype to avoid an error.
| Use char because int might match the return type of a GCC
| builtin and then its argument prototype would still apply. */
| #ifdef __cplusplus
| extern "C"
| #endif
| char setupterm ();
| int
| main ()
| {
| return setupterm ();
| ;
| return 0;
| }
configure:3434: result: no
configure:3450: error: in `/home/edi/ghc_cross/ghc/libraries/terminfo':
configure:3452: error: curses library not found, so this package cannot be built See "config.log" for more details
`
Greetings,
Edi

Answer 1

So, i've found the solution.
What i did is the following:
compiled the ncurses library with the arm-gcc with the following command:
./configure --target=arm-linux-gnueabihf --with-gcc=arm-linux-gnueabihf-gcc --with-shared --host=arm-linux-gnueabihf --with-build-cpp=arm-linux-gnueabihf-g++
afterwards i did make and did configured my ghc with the following:
./configure --target=arm-linux-gnueabihf --with-gcc=arm-linux-gnueabihf-gcc --prefix=/usr/arm-linux-gnueabihf --with-shared --with-sysroot=/path/to/cursescompiled/libs
Then it went through and didn't ask me for the curses-library anymore.
so guys, i hope this will be helpful for you

Answer 2

Ran into a similar problem, and this question lead me to the correct solution. Yes, I had to tweak sysroot, but the author's method didn't work, configure script just ignored the --with-sysroot flag. So what I did instead:
export SYSROOT=/usr/x86_64-w64-mingw32/sys-root/
export CFLAGS=--sysroot=$SYSROOT
export CPPFLAGS=--sysroot=$SYSROOT
export LDFLAGS=--sysroot=$SYSROOT
Then configure and make as usual, all in the same terminal session.