tinc/m4/openssl.m4
Guus Sliepen 1e2bdc2b6d - Always use <openssl/include.h> instead of just <include.h>
- Check if RAND_pseudo_bytes() exists, otherwise just use RAND_bytes()
2001-07-04 08:41:36 +00:00

41 lines
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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="$LIBS -lcrypto"],
[AC_MSG_ERROR("OpenSSL libraries not found.")]
)
AC_CHECK_FUNCS(RAND_pseudo_bytes)
AC_CHECK_FUNC(dlopen,
[],
AC_CHECK_LIB(dl, dlopen,
[LIBS="$LIBS -ldl"],
[AC_MSG_ERROR("OpenSSL depends on libdl.")]
)
)
])