tinc/m4/openssl.m4

41 lines
1.1 KiB
Text

dnl Check to find the OpenSSL headers/libraries
AC_DEFUN(tinc_OPENSSL,
[
tinc_ac_save_CPPFLAGS="$CPPFLAGS"
AC_ARG_WITH(openssl-include,
[ --with-openssl-include=DIR OpenSSL headers directory (without trailing /openssl)],
[openssl_include="$withval"
CFLAGS="$CFLAGS -I$withval"
CPPFLAGS="$CPPFLAGS -I$withval"]
)
AC_ARG_WITH(openssl-lib,
[ --with-openssl-lib=DIR OpenSSL library directory],
[openssl_lib="$withval"
LIBS="$LIBS -L$withval"]
)
AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h,
[],
[AC_MSG_ERROR([OpenSSL header files not found.]); break]
)
CPPFLAGS="$tinc_ac_save_CPPFLAGS"
AC_CHECK_LIB(crypto, SHA1_version,
[LIBS="$LIBS -lcrypto"],
[AC_MSG_ERROR([OpenSSL libraries not found.])]
)
AC_CHECK_FUNCS([RAND_pseudo_bytes OPENSSL_add_all_algorithms_noconf OpenSSL_add_all_algorithms SSLeay_add_all_algorithms])
AC_CHECK_FUNC(dlopen,
[],
[AC_CHECK_LIB(dl, dlopen,
[LIBS="$LIBS -ldl"],
[AC_MSG_ERROR([OpenSSL depends on libdl.])]
)]
)
])