[strongSwan-dev] "configure: error: GNU Multi Precision library gmp not found" issue met when cross-compiling strongswan 4.4.0.

[LIU Jingen]

Martin and all,

Thanks for your comments! 

I run cross-compiling by command "CC=arm-none-linux-gnueabi-gcc ./configure --build=i686-linux --host=arm-none-linux-gnueabi",
but I met "configure: error: GNU Multi Precision library gmp not found" issue. Cross-compiling failed.

I checked that gmp-4.1.4-6.2.1 had been installed on my fedora system. I suspect that it's caused by low version of gmp, 
and I had tried to install a higher version of gmp-4.3.2, but it seems failed (After installing 4.3.2, rpm -qa | grep gmp still shows gmp-4.1.4-6.2.1).

[root at femtoGPS gmp-4.3.2]# uname -a
Linux femtoGPS 2.6.15-1.2054_FC5 #1 Tue Mar 14 15:48:33 EST 2006 i686 i686 i386 GNU/Linux
[root at femtoGPS strongswan-4.4.0_cross_compile]# rpm -qa | grep gmp
gmp-4.1.4-6.2.1
gmp-devel-4.1.4-6.2.1
[root at femtoGPS strongswan-4.4.0_cross_compile]# rpm -qf /usr/include/gmp.h
gmp-devel-4.1.4-6.2.1
[root at femtoGPS strongswan-4.4.0_cross_compile]# 


[root at femtoGPS strongswan-4.4.0_cross_compile]# CC=arm-none-linux-gnueabi-gcc ./configure --build=i686-linux --host=arm-none-linux-gnueabi
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-none-linux-gnueabi-strip... arm-none-linux-gnueabi-strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking how to create a ustar tar archive... gnutar
checking for arm-none-linux-gnueabi-pkg-config... no
checking for pkg-config... /usr/local/bin/pkg-config
configure: WARNING: using cross tools not prefixed with host triplet
checking pkg-config is at least version 0.9.0... yes
checking for arm-none-linux-gnueabi-gcc... arm-none-linux-gnueabi-gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... yes
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether arm-none-linux-gnueabi-gcc accepts -g... yes
checking for arm-none-linux-gnueabi-gcc option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of arm-none-linux-gnueabi-gcc... gcc3
./configure: line 6023: AC_LIB_PREFIX: command not found
checking how to run the C preprocessor... arm-none-linux-gnueabi-gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking whether byte ordering is bigendian... no
checking build system type... i686-pc-linux-gnu
checking host system type... arm-none-linux-gnueabi
checking for a sed that does not truncate output... /bin/sed
checking for fgrep... /bin/grep -F
checking for ld used by arm-none-linux-gnueabi-gcc... /root/jingenli/arm_none_linux/arm-2009q1/arm-none-linux-gnueabi/bin/ld
checking if the linker (/root/jingenli/arm_none_linux/arm-2009q1/arm-none-linux-gnueabi/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /root/jingenli/arm_none_linux/arm-2009q1/bin/arm-none-linux-gnueabi-nm -B
checking the name lister (/root/jingenli/arm_none_linux/arm-2009q1/bin/arm-none-linux-gnueabi-nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 98304
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking for /root/jingenli/arm_none_linux/arm-2009q1/arm-none-linux-gnueabi/bin/ld option to reload object files... -r
checking for arm-none-linux-gnueabi-objdump... arm-none-linux-gnueabi-objdump
checking how to recognize dependent libraries... pass_all
checking for arm-none-linux-gnueabi-ar... arm-none-linux-gnueabi-ar
checking for arm-none-linux-gnueabi-strip... (cached) arm-none-linux-gnueabi-strip
checking for arm-none-linux-gnueabi-ranlib... arm-none-linux-gnueabi-ranlib
checking command to parse /root/jingenli/arm_none_linux/arm-2009q1/bin/arm-none-linux-gnueabi-nm -B output from arm-none-linux-gnueabi-gcc object... ok
checking for dlfcn.h... yes
checking for objdir... .libs
checking if arm-none-linux-gnueabi-gcc supports -fno-rtti -fno-exceptions... no
checking for arm-none-linux-gnueabi-gcc option to produce PIC... -fPIC -DPIC
checking if arm-none-linux-gnueabi-gcc PIC flag -fPIC -DPIC works... yes
checking if arm-none-linux-gnueabi-gcc static flag -static works... yes
checking if arm-none-linux-gnueabi-gcc supports -c -o file.o... yes
checking if arm-none-linux-gnueabi-gcc supports -c -o file.o... (cached) yes
checking whether the arm-none-linux-gnueabi-gcc linker (/root/jingenli/arm_none_linux/arm-2009q1/arm-none-linux-gnueabi/bin/ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking for egrep... (cached) /bin/grep -E
checking for gawk... (cached) gawk
checking for flex... flex
checking lex output file root... lex.yy
checking lex library... none needed
checking whether yytext is a pointer... no
checking for bison... bison -y
checking for perl... /usr/bin/perl
checking for gperf... no
checking gperf version >= 3.0.0... not found
checking for uid of user "root"... 0
checking for gid of group "root"... 0
configure: Enforcing --enable-socket-raw, as pluto is enabled
checking for stdbool.h that conforms to C99... yes
checking for _Bool... yes
checking for working alloca.h... yes
checking for alloca... yes
checking for library containing dlopen... -ldl
checking for library containing backtrace... none required
checking for backtrace... yes
checking for library containing socket... none required
checking for library containing clock_gettime... -lrt
checking for clock_gettime... yes
checking for library containing pthread_create... -lpthread
checking for dladdr... yes
checking for pthread_condattr_setclock(CLOCK_MONOTONE)... unknown
checking for pthread_condattr_setclock... yes
checking for pthread_condattr_init... yes
checking for pthread_cond_timedwait_monotonic... no
checking for pthread_cancel... yes
checking for pthread_rwlock_init... yes
checking for prctl... yes
checking sys/sockio.h usability... no
checking sys/sockio.h presence... no
checking for sys/sockio.h... no
checking net/pfkeyv2.h usability... no
checking net/pfkeyv2.h presence... no
checking for net/pfkeyv2.h... no
checking netipsec/ipsec.h usability... no
checking netipsec/ipsec.h presence... no
checking for netipsec/ipsec.h... no
checking netinet6/ipsec.h usability... no
checking netinet6/ipsec.h presence... no
checking for netinet6/ipsec.h... no
checking linux/udp.h usability... yes
checking linux/udp.h presence... yes
checking for linux/udp.h... yes
checking for struct sockaddr.sa_len... no
checking for struct sadb_x_policy.sadb_x_policy_priority... yes
checking for in6addr_any... yes
checking for in6_pktinfo... yes
checking for IPSEC_MODE_BEET... yes
checking for IPSEC_DIR_FWD... yes
checking for gcc atomic operations... no
checking for register_printf_specifier... no
checking for register_printf_function... yes

checking for main in -lgmp... no

configure: error: GNU Multi Precision library gmp not found






Best regards
Jingen, Liu
------------
Alcatel-Lucent Shanghai Bell Co.,Ltd. WSPD NanJing R&D Center.
Floor 10, Changjiang Technological Park, No.40, Nanchang Road, GuLou District.

-----Original Message-----
From: Martin Willi [mailto:martin at strongswan.org] 
Sent: 2013年2月20日 20:46
To: LIU Jingen
Cc: Dev at lists.strongswan.org
Subject: Re: [strongSwan-dev] Could anyone tell me how to compile strongswan codes for ARM platform?

Hi,

> Could anyone tell me how to compile strongswan codes for ARM platform?
> Cross-compile is necessary, could anyone tell me detail steps?

strongSwan uses the autotools build system, which provides good support for cross-compiling. There is a lot of information out there how this works, have a look at [1] for a start.

Regards
Martin

[1]http://www.gnu.org/software/automake/manual/html_node/Cross_002dCompilation.html