Linker errors when statically linking libcurl+open

I am trying to statically link libcurl (with SSL) into my project, but I am encountering lots of linker errors:

../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xa9c): undefined reference to `CreateDCA@16'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xaa9): undefined reference to `CreateCompatibleDC@4'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xaba): undefined reference to `GetDeviceCaps@8'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xaca): undefined reference to `GetDeviceCaps@8'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xae0): undefined reference to `CreateCompatibleBitmap@12'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xaee): undefined reference to `SelectObject@8'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xb00): undefined reference to `GetObjectA@12'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xb71): undefined reference to `BitBlt@36'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xb7b): undefined reference to `GetBitmapBits@12'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xbd2): undefined reference to `SelectObject@8'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xbd9): undefined reference to `DeleteObject@4'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xbe3): undefined reference to `DeleteDC@4'
../lib/libcrypto.a(rand_win.o):rand_win.c:(.text+0xbed): undefined reference to `DeleteDC@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x1b3b): undefined reference to `inet_addr@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x1ba4): undefined reference to `inet_addr@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x5d1e): undefined reference to `htonl@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x5eed): undefined reference to `ntohl@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x6f9a): undefined reference to `htonl@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x728d): undefined reference to `htonl@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x732c): undefined reference to `htonl@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0x757f): undefined reference to `ntohl@4'
../lib/librtmp.a(rtmp.o):rtmp.c:(.text+0xb45): undefined reference to `timeGetTime@0'

Here is the list of files in lib folfer that I downloaded.

I was told that I should define the macro CURL_STATICLIB and link in wsock32 and wldap32. Is there anything else that I should be doing?

I am using MinGW and Eclipse.

g++ -DCURL_STATICLIB -DUSE_LIBSSH2 -DHAVE_LIBSSH2 -DCURL_DISABLE_LDAP -DHAVE_LIBSSH2_H -DLIBSSH2_WIN32 -DLIBSSH2_LIBRARY -DUSE_SSLEAY -O0 -g3 -Wall -c -fmessage-length=0 -osrc\CURLDown.o ..\src\CURLDown.cpp

g++ -L../lib -oCURLDown.exe src\CURLDown.o -lcurl -lcrypto -lwsock32 -lwldap32 -leay32 -lidn -lrtmp -lssh2 -lz -lssl32 -lssl

回答1:

For those searching for this answer on google - the undefined reference to `CreateDCA@16' linker error is looking for libgdi.a (just -lgdi would do). Bear in mind it has to be included after libcurl and openssl in the list of libraries to link.

回答2:

g++ -L../lib -oCURLDown.exe src\CURLDown.o -lcurl -leay32 -lidn -lrtmp -lssh2 -lz -lssl32 -lcrypto

suggests that you really don't specify all libs. Maybe there is a typo in your makefile? I also see a reference to timeGetTime() which resides in Winmm.lib.

Also libeay32 and libcrypto seem to have a misunderstanding in who should define what. There is probably accidently a sourcefile that is compiled by both libs that should only be compiled by one.