revert: build: respect autotools DLL_EXPORT in libssh2.h
#1141
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Reverts fb1195c libssh2#917 On a second look this change did not improve anything with autotools builds. autotools seems to handle the dll export matter without it. On the other hand, this patch broke (e.g.) curl-for-win autotools builds, where the curl build defines `DLL_EXPORT` while building libcurl DLL. `libssh2.h` picks it up, resulting in unresolved symbols while trying to link a static libssh2. The best fix seems to be to revert this, instead of adding extra tweaks to dependents. Fixes: https://ci.appveyor.com/project/curlorg/curl-for-win/builds/47667412#L11035 ``` d.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_block_directions >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_do) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_multi_statemach) >>> referenced 8 more times ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_init_ex >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_set_read_timeout [...] ``` Closes #xxxx
DLL_EXPORT in libssh2.hDLL_EXPORT in libssh2.h
vszakats
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Jul 29, 2023
…n [ci skip] This libssh2 commit caused that when a dependent (like curl) is built in shared mode with autotools on Windows, libssh2 is also setup for shared mode linking: libssh2/libssh2#917 libssh2/libssh2@fb1195c We want to link libssh2 statically to a shared libcurl, so force linking statically with `-DLIBSSH2_API=` as a workaround (which is equivalent to setting `-DLIBNAME_STATICLIB` as seen with other libs). Because the libssh2 commit turned out to be not useful anyway, I opted to revert it to avoid fallouts like this. PR: libssh2/libssh2#1141 Fixes: https://ci.appveyor.com/project/curlorg/curl-for-win/builds/47667412#L11035 ``` ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_block_directions >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_do) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_multi_statemach) >>> referenced 8 more times ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_init_ex >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_set_read_timeout [...] ```
lampmanyao
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Sep 3, 2023
Revert fb1195c libssh2#917 On a second look this change did not improve anything with autotools builds. autotools seems to handle the dll export matter without it. This patch also broke (e.g.) curl-for-win autotools builds, where the curl build defines `DLL_EXPORT` while building libcurl DLL. `libssh2.h` picks it up, resulting in unresolved symbols while trying to link a static libssh2 on Windows. The best fix seems to be to revert this, instead of adding extra tweaks to dependents. Fixes: https://ci.appveyor.com/project/curlorg/curl-for-win/builds/47667412#L11035 ``` ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_block_directions >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_do) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_multi_statemach) >>> referenced 8 more times ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_init_ex >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_set_read_timeout [...] ``` Closes libssh2#1141
agreppin
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to agreppin/libssh2
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Jul 14, 2024
Revert fb1195c libssh2#917 On a second look this change did not improve anything with autotools builds. autotools seems to handle the dll export matter without it. This patch also broke (e.g.) curl-for-win autotools builds, where the curl build defines `DLL_EXPORT` while building libcurl DLL. `libssh2.h` picks it up, resulting in unresolved symbols while trying to link a static libssh2 on Windows. The best fix seems to be to revert this, instead of adding extra tweaks to dependents. Fixes: https://ci.appveyor.com/project/curlorg/curl-for-win/builds/47667412#L11035 ``` ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_block_directions >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_do) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_multi_statemach) >>> referenced 8 more times ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_init_ex >>> referenced by vssh/.libs/libcurl_la-libssh2.o:(ssh_connect) ld.lld-15: error: undefined symbol: __declspec(dllimport) libssh2_session_set_read_timeout [...] ``` Closes libssh2#1141
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Revert fb1195c #917
On a second look this change did not improve anything with autotools
builds. autotools seems to handle the dll export matter without it.
This patch also broke (e.g.) curl-for-win autotools builds, where the
curl build defines
DLL_EXPORTwhile building libcurl DLL.libssh2.hpicks it up, resulting in unresolved symbols while trying to link a
static libssh2 on Windows. The best fix seems to be to revert this,
instead of adding extra tweaks to dependents.
Fixes:
https://ci.appveyor.com/project/curlorg/curl-for-win/builds/47667412#L11035
Closes #1141