tinc/m4/openssl.m4
Guus Sliepen c5c02a0861 Changed drastically because it didn't work correctly:
- Don't cache the --with-openssl-* option arguments
- Only search for openssl/*.h, the openssl include files include other
  files only from an openssl/ directory too
- Set CPPFLAGS before AC_CHECK_HEADERS
2001-06-07 07:51:04 +00:00

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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.")]
)
])