collect2.exe: error: ld returned 1 exit status

[YaProof]

Hi.

I'm use Windows 10, x64.

When I try to install a package, I get an error

# gopkg.in/rana/ora.v4
C:/MinGW/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -loci
collect2.exe: error: ld returned 1 exit status

go env
set GOARCH=amd64
set GOBIN=
set GOEXE=.exe
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows
set GOPATH=C:\GoPath
set GORACE=
set GOROOT=C:\Go
set GOTOOLDIR=C:\Go\pkg\tool\windows_amd64
set GCCGO=gccgo
set CC=gcc
set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=C:\Users\PAVEL~1.VAS\AppData\Local\Temp\go-build605204955=/tmp/go-build -gno-record-gcc-switches
set CXX=g++
set CGO_ENABLED=1
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config

Please, tell me, what could be the problem?

[tgulacsi]

Do you have oci.dll somewhere? Where have you installed InstantClient?
(BTW gopkg.in/goracle.v2 doesn't need Oracle for compilation, only for running).

[YaProof]

OracleClient is installed, there is also oci.dll. The path in the environment variable. To the connection there is, checked PL/SQL developer.
OraPath: D:\app\ora12\product\12.1.0\client_1

[tgulacsi]

ora.v4 uses pkg-config.
What does pkg-config --libs oci8 print out? It should -LD:\app\ora12\product\12.1.0\client_1 -loci.
If not, modify oci8.pc with the correct path.

[tgulacsi]

#221 helps?

[YaProof]

Thanks, I changed the paths in the oci8.pc file, for variables libdir and includedir.