tinc/m4/openssl.m4

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(OpenSSL_add_all_algorithms,
    [],
    AC_CHECK_FUNC(SSLeay_add_all_algorithms,
      [AC_DEFINE(HAVE_SSLEAY_ADD_ALL_ALGORITHMS)],
      [AC_MSG_ERROR("Missing required OpenSSL functionality!")]
    )
  )

  AC_CHECK_FUNC(dlopen,
    [],
    AC_CHECK_LIB(dl, dlopen,
      [LIBS="$LIBS -ldl"],
      [AC_MSG_ERROR("OpenSSL depends on libdl.")]
    )
  )
])
Add a check for openssl that accepts explicit file locations. 2000-11-13 22:01:27 +00:00			`dnl Check to find the OpenSSL headers/libraries`

			`AC_DEFUN(tinc_OPENSSL,`
			`[`
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			`tinc_ac_save_CPPFLAGS="$CPPFLAGS"`
Add a check for openssl that accepts explicit file locations. 2000-11-13 22:01:27 +00:00
Changed drastically because it didn't work correctly: - Don't cache the --with-openssl-* option arguments - Only search for openssl/*.h, the openssl include files include other files only from an openssl/ directory too - Set CPPFLAGS before AC_CHECK_HEADERS 2001-06-07 07:51:04 +00:00			`AC_ARG_WITH(openssl-include,`
			`[ --with-openssl-include=DIR OpenSSL headers directory (without trailing /openssl)],`
			`[openssl_include="$withval"`
			`CFLAGS="$CFLAGS -I$withval"`
			`CPPFLAGS="$CPPFLAGS -I$withval"]`
			`)`
Better checks for OpenSSL. I think it can now detect almost all conceivable installations. 2000-11-14 22:57:19 +00:00
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			`AC_ARG_WITH(openssl-lib,`
			`[ --with-openssl-lib=DIR OpenSSL library directory],`
			`[openssl_lib="$withval"`
			`LIBS="$LIBS -L$withval"]`
			`)`
Better checks for OpenSSL. I think it can now detect almost all conceivable installations. 2000-11-14 22:57:19 +00:00
Save RSA public and private keys to a separate file, instead of wanting to copy them into a configuration file. 2000-11-28 23:12:57 +00:00			`AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h,`
Changed drastically because it didn't work correctly: - Don't cache the --with-openssl-* option arguments - Only search for openssl/*.h, the openssl include files include other files only from an openssl/ directory too - Set CPPFLAGS before AC_CHECK_HEADERS 2001-06-07 07:51:04 +00:00			`[],`
			`[AC_MSG_ERROR("OpenSSL header files not found."); break]`
			`)`
Add a check for openssl that accepts explicit file locations. 2000-11-13 22:01:27 +00:00
Changed drastically because it didn't work correctly: - Don't cache the --with-openssl-* option arguments - Only search for openssl/*.h, the openssl include files include other files only from an openssl/ directory too - Set CPPFLAGS before AC_CHECK_HEADERS 2001-06-07 07:51:04 +00:00			`CPPFLAGS="$tinc_ac_save_CPPFLAGS"`
Add a check for openssl that accepts explicit file locations. 2000-11-13 22:01:27 +00:00
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			`AC_CHECK_LIB(crypto, SHA1_version,`
			`[LIBS="$LIBS -lcrypto"],`
			`[AC_MSG_ERROR("OpenSSL libraries not found.")]`
			`)`
Check for and add -ldl. 2001-06-21 16:37:05 +00:00
- 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			`AC_CHECK_FUNCS(RAND_pseudo_bytes)`

Merging of the entire pre5 branch. 2002-02-10 21:57:54 +00:00			`AC_CHECK_FUNC(OpenSSL_add_all_algorithms,`
			`[],`
			`AC_CHECK_FUNC(SSLeay_add_all_algorithms,`
			`[AC_DEFINE(HAVE_SSLEAY_ADD_ALL_ALGORITHMS)],`
			`[AC_MSG_ERROR("Missing required OpenSSL functionality!")]`
			`)`
			`)`

Check for dlopen in standard libraries first (needed for DEC OSF). 2001-06-29 14:15:46 +00:00			`AC_CHECK_FUNC(dlopen,`
			`[],`
			`AC_CHECK_LIB(dl, dlopen,`
			`[LIBS="$LIBS -ldl"],`
			`[AC_MSG_ERROR("OpenSSL depends on libdl.")]`
			`)`
Check for and add -ldl. 2001-06-21 16:37:05 +00:00			`)`
Add a check for openssl that accepts explicit file locations. 2000-11-13 22:01:27 +00:00			`])`