I am building libcurl_a.lib from the commandline, using VC9:

nmake /f makefile.vc mode=static VC=9 MACHINE=x86
        WITH_DEVEL=../../win32build USE_IDN=yes WITH_WINSSL=static
        WITH_SSH2=static WITH_ZLIB=static

This fails with:
libcurl_a.lib(agent.obj) : error LNK2019: unresolved external symbol
        __imp_FindWindowA referenced in function agent_connect_pageant
libcurl_a.lib(agent.obj) : error LNK2019: unresolved external symbol
        __imp_SendMessageA referenced in function agent_transact_pageant

At first I solved this by recompiling libssh2 without agent_ops_pageant.
Recompiling libssh2 showed me that the missing symbols can be found in
user32.dll:
        __imp__FindWindowA 100171f0 user32:USER32.dll
Moreover, libssh2 includes user32.lib while linking.

So, I changed line 135 in winbuild/MakefileBuild.vc from
-SSH2_LIBS = libssh2_a_debug.lib
into
+SSH2_LIBS = libssh2_a_debug.lib user32.lib

And libcurl builds fine again.

Then I checked the preceding line 131 as well:
-SSH2_LIBS = libssh2.lib
+SSH2_LIBS = libssh2_a.lib user32.lib

libssh2_a.lib is better than libssh2.lib, because libssh2 produces an
_a.lib as standard, just like curl. And the user32.lib is also needed
for with_ssh2=dll.

Jan

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Received on 2012-10-19