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ccurlgnustatic-linking

Static linking libcurl using c

I am using Libcurl in my application with C and GNU compiler on a linux machine. Application also uses OpenSSL libraries and some other libraries. I am trying to statically link the libraries, except for lcurl linking with other libraries works fine.

I am trying to compile as below.

gcc -static -I. -o test test.c -lz -lssl -lcrypto -lcurl

Am I doing anything wrong? Is there a way to force static linking of some librairies (libc for exemple) ?

Solution

  • Libcurl is itself linked against a ton of other libraries, most of which aren't included in your compile command line. For instance, mine (on Debian Squeeze) links against:

    • libc
    • libcom_err
    • libcrypto
    • libdl
    • libgcrypt
    • libgnutls
    • libgpg-error
    • libgssapi_krb5
    • libidn
    • libk5crypto
    • libkeyutils
    • libkrb5
    • libkrb5support
    • liblber-2.4
    • libldap_r-2.4
    • libpthread
    • libresolv
    • librt
    • libsasl2
    • libssh2
    • libssl
    • libtasn1
    • libz

    (You can get a similar list for yourself by running ldd on the library on Linux, or otool -L on Darwin.)