I'm experiencing what I would have thought would be a common occurrence but doesn't appear to be so. So, I'm writing this message in the hope that someone can at least clarify the issue if not work towards a solution. All my compilation is at present being tested on a FreeBSD 7.1 system on an amd64 architecture.
First, I build and install a static zlib 1.2.3 into /my/special/path Next, I build and install a static openssl 1.0.0 into /my/special/path, configured as follows: ./config zlib no-shared no-zlib-dynamic --prefix=/my/special/path --with-zlib-include=/my/special/path/include --with-zlib-lib=/my/special/path/lib -fPIC Last, I build third-party libraries and applications such as curl which link against openssl. Unless I pass -lz in the LIBS environment variable when calling the GNU autotools configure script for curl, the configure script fails when checking for SSL_connect in libssl.a. Examining the output of the configure tests for curl, it becomes clear that there are a number of undefined symbols from zlib in libcrypto.a: (from curl's config.log) configure:18966: checking for SSL_connect in -lssl configure:18988: gcc -o conftest -fPIC -isystem /my/special/path/include -g0 -O2 -Wno-system-headers -I/my/special/path/include -I/my/special/path/include/openssl -L/my/special/path/lib -L/my/special/path/lib conftest.c -lssl -lcrypto >&5 /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x6f): In function `bio_zlib_free': : undefined reference to `inflateEnd' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x8d): In function `bio_zlib_free': : undefined reference to `deflateEnd' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x394): In function `bio_zlib_ctrl': : undefined reference to `deflate' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x46d): In function `bio_zlib_ctrl': : undefined reference to `zError' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x51a): In function `bio_zlib_read': : undefined reference to `inflate' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x596): In function `bio_zlib_read': : undefined reference to `zError' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x5f4): In function `bio_zlib_read': : undefined reference to `inflateInit_' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x6e7): In function `bio_zlib_write': : undefined reference to `deflate' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x76e): In function `bio_zlib_write': : undefined reference to `zError' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x807): In function `bio_zlib_write': : undefined reference to `deflateInit_' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0x972): In function `zlib_stateful_expand_block': : undefined reference to `inflate' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0xa19): In function `zlib_stateful_compress_block': : undefined reference to `deflate' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0xa5f): In function `zlib_stateful_finish': : undefined reference to `inflateEnd' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0xa68): In function `zlib_stateful_finish': : undefined reference to `deflateEnd' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0xb22): In function `zlib_stateful_init': : undefined reference to `inflateInit_' /my/special/path/lib/libcrypto.a(c_zlib.o)(.text+0xba8): In function `zlib_stateful_init': : undefined reference to `deflateInit_' Adding -lz resolves these symbols which leads to my question: why aren't the symbols from zlib resolved during the compilation and linking such that an application not directly calling out to zlib need not link against it if it only wishes to use openssl? My thanks in advance for any help that can be offered on the subject. Regards, -Jeff ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List openssl-dev@openssl.org Automated List Manager majord...@openssl.org
