$ pwd
/home/vireshk/work/repos/tools/json-c
$ export ac_cv_func_malloc_0_nonnull=yes
$ export ac_cv_func_realloc_0_nonnull=yes

$ ./autogen.sh
autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal -I autoconf-archive/m4
autoreconf: configure.ac: tracing
autoreconf: running: libtoolize --copy
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: Consider adding 'AC_CONFIG_MACRO_DIRS([m4])' to configure.ac,
libtoolize: and rerunning libtoolize and aclocal.
libtoolize: Consider adding '-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
autoreconf: running: /usr/bin/autoconf --include=autoconf-archive/m4
autoreconf: running: /usr/bin/autoheader --include=autoconf-archive/m4
autoreconf: running: automake --add-missing --copy --no-force
configure.ac:32: installing './compile'
configure.ac:78: installing './config.guess'
configure.ac:78: installing './config.sub'
configure.ac:6: installing './install-sh'
configure.ac:6: installing './missing'
Makefile.am: installing './INSTALL'
Makefile.am: installing './depcomp'
parallel-tests: installing './test-driver'
autoreconf: Leaving directory `.'

$ ./configure --host=aarch64-linux-gnu --disable-shared --enable-static
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for aarch64-linux-gnu-strip... aarch64-linux-gnu-strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make sets $(MAKE)... (cached) yes
RDRAND Hardware RNG Hash Seed disabled. Use --enable-rdrand to enable
checking whether make supports nested variables... (cached) yes
checking for style of include used by make... GNU
checking for aarch64-linux-gnu-gcc... aarch64-linux-gnu-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether aarch64-linux-gnu-gcc accepts -g... yes
checking for aarch64-linux-gnu-gcc option to accept ISO C89... none needed
checking whether aarch64-linux-gnu-gcc understands -c and -o together... yes
checking dependency style of aarch64-linux-gnu-gcc... gcc3
checking for aarch64-linux-gnu-gcc option to accept ISO C99... -std=gnu99
checking how to run the C preprocessor... aarch64-linux-gnu-gcc -std=gnu99 -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 fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking limits.h usability... yes
checking limits.h presence... yes
checking for limits.h... yes
checking for strings.h... (cached) yes
checking syslog.h usability... yes
checking syslog.h presence... yes
checking for syslog.h... yes
checking for unistd.h... (cached) yes
checking sys/cdefs.h usability... yes
checking sys/cdefs.h presence... yes
checking for sys/cdefs.h... yes
checking sys/param.h usability... yes
checking sys/param.h presence... yes
checking for sys/param.h... yes
checking stdarg.h usability... yes
checking stdarg.h presence... yes
checking for stdarg.h... yes
checking locale.h usability... yes
checking locale.h presence... yes
checking for locale.h... yes
checking xlocale.h usability... yes
checking xlocale.h presence... yes
checking for xlocale.h... yes
checking endian.h usability... yes
checking endian.h presence... yes
checking for endian.h... yes
checking for inttypes.h... (cached) yes
checking for an ANSI C-conforming const... yes
checking for size_t... yes
checking for vprintf... yes
checking for _doprnt... no
checking for working memcmp... no
checking for realloc... yes
checking for strcasecmp... yes
checking for strdup... yes
checking for strerror... yes
checking for snprintf... yes
checking for vsnprintf... yes
checking for vasprintf... yes
checking for open... yes
checking for vsyslog... yes
checking for strncasecmp... yes
checking for setlocale... yes
checking for uselocale... yes
checking whether INFINITY is declared... yes
checking whether nan is declared... yes
checking whether isnan is declared... yes
checking whether isinf is declared... yes
checking whether _isnan is declared... no
checking whether _finite is declared... no
checking if .gnu.warning accepts long strings... no
checking build system type... x86_64-pc-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for fgrep... /bin/grep -F
checking for ld used by aarch64-linux-gnu-gcc -std=gnu99... /mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/bin/ld
checking if the linker (/mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /home/vireshk/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-nm -B
checking the name lister (/home/vireshk/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking how to convert x86_64-pc-linux-gnu file names to aarch64-unknown-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/bin/ld option to reload object files... -r
checking for aarch64-linux-gnu-objdump... aarch64-linux-gnu-objdump
checking how to recognize dependent libraries... pass_all
checking for aarch64-linux-gnu-dlltool... no
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for aarch64-linux-gnu-ar... aarch64-linux-gnu-ar
checking for archiver @FILE support... @
checking for aarch64-linux-gnu-strip... (cached) aarch64-linux-gnu-strip
checking for aarch64-linux-gnu-ranlib... aarch64-linux-gnu-ranlib
checking command to parse /home/vireshk/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-nm -B output from aarch64-linux-gnu-gcc -std=gnu99 object... ok
checking for sysroot... no
checking for a working dd... /bin/dd
checking how to truncate binary pipes... /bin/dd bs=4096 count=1
checking for aarch64-linux-gnu-mt... no
checking for mt... mt
configure: WARNING: using cross tools not prefixed with host triplet
checking if mt is a manifest tool... no
checking for dlfcn.h... yes
checking for objdir... .libs
checking if aarch64-linux-gnu-gcc -std=gnu99 supports -fno-rtti -fno-exceptions... no
checking for aarch64-linux-gnu-gcc -std=gnu99 option to produce PIC... -fPIC -DPIC
checking if aarch64-linux-gnu-gcc -std=gnu99 PIC flag -fPIC -DPIC works... yes
checking if aarch64-linux-gnu-gcc -std=gnu99 static flag -static works... yes
checking if aarch64-linux-gnu-gcc -std=gnu99 supports -c -o file.o... yes
checking if aarch64-linux-gnu-gcc -std=gnu99 supports -c -o file.o... (cached) yes
checking whether the aarch64-linux-gnu-gcc -std=gnu99 linker (/mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/bin/ld) supports shared libraries... yes
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... no
checking whether to build static libraries... yes
checking for -Bsymbolic-functions linker flag... yes
checking whether C compiler accepts -Wall... yes
checking whether C compiler accepts -Werror... yes
checking whether C compiler accepts -Wcast-qual... yes
checking whether C compiler accepts -Wno-error=deprecated-declarations... yes
checking whether C compiler accepts -Wextra... yes
checking whether C compiler accepts -Wwrite-string... no
checking whether C compiler accepts -Wno-unused-parameter... yes
checking whether C compiler accepts -D_GNU_SOURCE... yes
checking whether C compiler accepts -D_REENTRANT... yes
checking size of int... 4
checking size of long... 8
checking size of long long... 8
checking size of size_t... 8
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating json-c.pc
config.status: creating tests/Makefile
config.status: creating json-c-uninstalled.pc
config.status: creating config.h
config.status: creating json_config.h
config.status: executing depfiles commands
config.status: executing libtool commands

$ make
(CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/bash /home/vireshk/work/repos/tools/json-c/missing autoheader)
rm -f stamp-h1
touch config.h.in
cd . && /bin/bash ./config.status config.h
config.status: creating config.h
config.status: config.h is unchanged
make  all-recursive
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/json-c'
Making all in .
make[2]: Entering directory '/mnt/ssd/all/work/repos/tools/json-c'
  CC       arraylist.lo
  CC       debug.lo
  CC       json_c_version.lo
  CC       json_object.lo
  CC       json_object_iterator.lo
  CC       json_pointer.lo
  CC       json_tokener.lo
  CC       json_util.lo
  CC       json_visit.lo
  CC       linkhash.lo
  CC       printbuf.lo
  CC       random_seed.lo
  CCLD     libjson-c.la
make[2]: Leaving directory '/mnt/ssd/all/work/repos/tools/json-c'
Making all in tests
make[2]: Entering directory '/mnt/ssd/all/work/repos/tools/json-c/tests'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/mnt/ssd/all/work/repos/tools/json-c/tests'
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/json-c'

$ cd ../rt-app/

$ make clean; make distclean
Making clean in libdl
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app/libdl'
rm -rf .libs _libs
test -z "libdl.a" || rm -f libdl.a
rm -f *.o
rm -f *.lo
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app/libdl'
Making clean in src
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
 rm -f rt-app
rm -rf .libs _libs
rm -f *.o
rm -f *.lo
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app'
rm -rf .libs _libs
rm -f *.lo
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app'
Making distclean in src
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
 rm -f rt-app
rm -rf .libs _libs
rm -f *.o
rm -f *.lo
rm -f *.tab.c
test -z "" || rm -f
test . = "." || test -z "" || rm -f
rm -f config.h stamp-h1
rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
rm -rf ./.deps
rm -f Makefile
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
Making distclean in libdl
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app/libdl'
rm -rf .libs _libs
test -z "libdl.a" || rm -f libdl.a
rm -f *.o
rm -f *.lo
rm -f *.tab.c
test -z "" || rm -f
test . = "." || test -z "" || rm -f
rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
rm -rf ./.deps
rm -f Makefile
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app/libdl'
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app'
rm -rf .libs _libs
rm -f *.lo
test -z "README COPYING" || rm -f README COPYING
test . = "." || test -z "" || rm -f
rm -f libtool config.lt
rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
rm -f cscope.out cscope.in.out cscope.po.out cscope.files
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app'
rm -f config.status config.cache config.log configure.lineno config.status.lineno
rm -f Makefile

$ export ac_cv_lib_json_c_json_object_from_file=yes

$ ./autogen.sh
libtoolize: Consider adding '-I m4' to ACLOCAL_AMFLAGS in Makefile.am.

----------------------------------------------------------------
Initialized build system. For a common configuration please run:
----------------------------------------------------------------

./configure --with-deadline

$ ./configure --host=aarch64-linux-gnu LDFLAGS="--static -L./../json-c/." CFLAGS="-I./.." --with-deadline
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for aarch64-linux-gnu-strip... aarch64-linux-gnu-strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for style of include used by make... GNU
checking for aarch64-linux-gnu-gcc... aarch64-linux-gnu-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether aarch64-linux-gnu-gcc accepts -g... yes
checking for aarch64-linux-gnu-gcc option to accept ISO C89... none needed
checking whether aarch64-linux-gnu-gcc understands -c and -o together... yes
checking dependency style of aarch64-linux-gnu-gcc... gcc3
checking for aarch64-linux-gnu-ar... aarch64-linux-gnu-ar
checking the archiver (aarch64-linux-gnu-ar) interface... ar
checking for aarch64-linux-gnu-gcc... (cached) aarch64-linux-gnu-gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether aarch64-linux-gnu-gcc accepts -g... (cached) yes
checking for aarch64-linux-gnu-gcc option to accept ISO C89... (cached) none needed
checking whether aarch64-linux-gnu-gcc understands -c and -o together... (cached) yes
checking dependency style of aarch64-linux-gnu-gcc... (cached) gcc3
checking build system type... x86_64-pc-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F
checking for ld used by aarch64-linux-gnu-gcc... /mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/bin/ld
checking if the linker (/mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /home/vireshk/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-nm -B
checking the name lister (/home/vireshk/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking how to convert x86_64-pc-linux-gnu file names to aarch64-unknown-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/bin/ld option to reload object files... -r
checking for aarch64-linux-gnu-objdump... aarch64-linux-gnu-objdump
checking how to recognize dependent libraries... pass_all
checking for aarch64-linux-gnu-dlltool... no
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for aarch64-linux-gnu-ar... (cached) aarch64-linux-gnu-ar
checking for archiver @FILE support... @
checking for aarch64-linux-gnu-strip... (cached) aarch64-linux-gnu-strip
checking for aarch64-linux-gnu-ranlib... aarch64-linux-gnu-ranlib
checking command to parse /home/vireshk/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-nm -B output from aarch64-linux-gnu-gcc object... ok
checking for sysroot... no
checking for a working dd... /bin/dd
checking how to truncate binary pipes... /bin/dd bs=4096 count=1
checking for aarch64-linux-gnu-mt... no
checking for mt... mt
configure: WARNING: using cross tools not prefixed with host triplet
checking if mt is a manifest tool... no
checking how to run the C preprocessor... aarch64-linux-gnu-gcc -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 for dlfcn.h... yes
checking for objdir... .libs
checking if aarch64-linux-gnu-gcc supports -fno-rtti -fno-exceptions... no
checking for aarch64-linux-gnu-gcc option to produce PIC... -fPIC -DPIC
checking if aarch64-linux-gnu-gcc PIC flag -fPIC -DPIC works... yes
checking if aarch64-linux-gnu-gcc static flag -static works... yes
checking if aarch64-linux-gnu-gcc supports -c -o file.o... yes
checking if aarch64-linux-gnu-gcc supports -c -o file.o... (cached) yes
checking whether the aarch64-linux-gnu-gcc linker (/mnt/ssd/all/work/repos/tools/toolchain/gcc-linaro-4.9-2015.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/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 ANSI C header files... (cached) yes
checking for pthread_create in -lpthread... yes
checking for round in -lm... yes
checking for clock_gettime in -lrt... yes
checking for json_object_from_file in -ljson-c... (cached) yes
checking for sched_setattr... no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating src/Makefile
config.status: creating libdl/Makefile
config.status: creating README
config.status: creating COPYING
config.status: creating src/config.h
config.status: executing depfiles commands
config.status: executing libtool commands

$ make
Making all in libdl
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app/libdl'
aarch64-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../src     -I./.. -MT dl_syscalls.o -MD -MP -MF .deps/dl_syscalls.Tpo -c -o dl_syscalls.o dl_syscalls.c
mv -f .deps/dl_syscalls.Tpo .deps/dl_syscalls.Po
rm -f libdl.a
aarch64-linux-gnu-ar cru libdl.a dl_syscalls.o
aarch64-linux-gnu-ranlib libdl.a
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app/libdl'
Making all in src
make[1]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
make  all-am
make[2]: Entering directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
aarch64-linux-gnu-gcc -DHAVE_CONFIG_H -I.  -I./../libdl/   -I./.. -MT rt-app_utils.o -MD -MP -MF .deps/rt-app_utils.Tpo -c -o rt-app_utils.o rt-app_utils.c
mv -f .deps/rt-app_utils.Tpo .deps/rt-app_utils.Po
aarch64-linux-gnu-gcc -DHAVE_CONFIG_H -I.  -I./../libdl/   -I./.. -MT rt-app_args.o -MD -MP -MF .deps/rt-app_args.Tpo -c -o rt-app_args.o rt-app_args.c
In file included from rt-app_args.h:39:0,
                 from rt-app_args.c:22:
rt-app_parse_config.h:40:25: fatal error: json-c/json.h: No such file or directory
 #include <json-c/json.h>
                         ^
compilation terminated.
Makefile:484: recipe for target 'rt-app_args.o' failed
make[2]: *** [rt-app_args.o] Error 1
make[2]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
Makefile:335: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/mnt/ssd/all/work/repos/tools/rt-app/src'
Makefile:391: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1