running install
running build
running build_py
warning: build_py: byte-compiling is disabled, skipping.

running build_ext
building 'psycopg2._psycopg' extension
ccache_cc -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -Os -pipe -matomic -marchs -fno-caller-saves -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result -Wformat -Werror=format-security -D_FORTIFY_SOURCE=1 -Wl,-z,now -Wl,-z,relro -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/target-arc_archs_uClibc-1.0.14/usr/include -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/target-arc_archs_uClibc-1.0.14/include -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/toolchain-arc_archs_gcc-arc-2016.03_uClibc-1.0.14/usr/include -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/toolchain-arc_archs_gcc-arc-2016.03_uClibc-1.0.14/include -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/target-arc_archs_uClibc-1.0.14/usr/include/python2.7 -fPIC -DPSYCOPG_DEFAULT_PYDATETIME=1 -DPSYCOPG_VERSION="2.6.2 (dt dec pq3 ext lo64)" -DPG_VERSION_HEX=0x09050E -DHAVE_LO64=1 -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/target-arc_archs_uClibc-1.0.14/usr/include/python2.7 -I. -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/target-arc_archs_uClibc-1.0.14/usr/include -I/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/staging_dir/target-arc_archs_uClibc-1.0.14/usr/include/postgresql/server -c psycopg/psycopgmodule.c -o build/temp.linux2-2.7/psycopg/psycopgmodule.o -Wdeclaration-after-statement
In file included from psycopg/psycopgmodule.c:27:0:
./psycopg/psycopg.h:31:22: fatal error: libpq-fe.h: No such file or directory
 #include <libpq-fe.h>
                      ^
compilation terminated.
error: command 'ccache_cc' failed with exit status 1
Makefile:55: recipe for target '/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/build_dir/target-arc_archs_uClibc-1.0.14/psycopg2-2.6.2/.built' failed
make[3]: *** [/build/lede-17.01/slaves/phase2/arc_archs/build/sdk/build_dir/target-arc_archs_uClibc-1.0.14/psycopg2-2.6.2/.built] Error 1