I'm finding this a bit bizarre. I feel like I'm missing something obvious.

I have a very simple test dll with function "int zzz_init(void)" that
uses curl.

Dynamically:
------------

/C/msys64/mingw32/bin/gcc.exe  -O2  -Wl,--allow-multiple-definition
-shared -o libzzz.dll -Wl,--out-implib,libzzz.dll.a
-Wl,--major-image-version,3,--minor-image-version,0 -Wl,--whole-archive
CMakeFiles/zzz.dir/objects.a -Wl,--no-whole-archive -lcurl -Wl,-Bstatic
-lssl -lcrypto -lxml2 -ljansson -static-libgcc -lpsl -lidn2 -lnghttp2
-lcrypt32 -lunistring -lssh2 -lbrotlidec-static -lbrotlicommon-static
-lz -llzma -lintl -liconv -lwldap32 -lwsock32 -lws2_32 -lgdi32
-lcomdlg32 -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32
-loleaut32 -luuid -lcomdlg32 -ladvapi32

zzz_init exists:

$ nm _build/mingw32-Release/atoakm3/libzzz.dll.a | grep zzz_init
00000000 I __imp__zzz_init
00000000 T _zzz_init

Statically:
-----------

/C/msys64/mingw32/bin/gcc.exe  -O2  -Wl,--allow-multiple-definition
-shared -o libzzz.dll -Wl,--out-implib,libzzz.dll.a
-Wl,--major-image-version,3,--minor-image-version,0 -Wl,--whole-archive
CMakeFiles/zzz.dir/objects.a -Wl,--no-whole-archive -Wl,-Bstatic -lcurl
-lssl -lcrypto -lxml2 -ljansson -static-libgcc -lpsl -lidn2 -lnghttp2
-lcrypt32 -lunistring -lssh2 -lbrotlidec-static -lbrotlicommon-static
-lz -llzma -lintl -liconv -lwldap32 -lwsock32 -lws2_32 -lgdi32
-lcomdlg32 -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32
-loleaut32 -luuid -lcomdlg32 -ladvapi32

zzz_init does not exist:

$ nm _build/mingw32-Release/atoakm3/libzzz.dll.a | grep zzz_init

The only difference is that -lcurl is after -Wl,-Bstatic not before.

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Received on 2019-02-15