m4/openssl.m4

   1 dnl Check to find the OpenSSL headers/libraries
   2
   3
   4 AC_DEFUN(tinc_OPENSSL,
   5 [
   6
   7   AC_CACHE_CHECK([for openssl], tinc_cv_openssl_include,
   8   [
   9     AC_ARG_WITH(openssl,
  10       [  --with-openssl=DIR      OpenSSL library and headers prefix],
  11       [echo -ne 'prefix...'
  12        openssl_lib="$withval/lib"
  13        openssl_include="$withval/include"]
  14     )
  15     AC_ARG_WITH(openssl-include,
  16       [  --with-openssl-include=DIR OpenSSL headers directory],
  17       [echo -ne 'includes...'
  18        openssl_include="$withvall"]
  19     )
  20     AC_ARG_WITH(openssl-lib,
  21       [  --with-openssl-lib=DIR  OpenSSL library directory],
  22       [echo -ne 'libraries...'
  23        openssl_lib="$withval"]
  24     )
  25
  26 if test "x$openssl_lib" != "x" ; then
  27   LIBS="$LIBS -L$openssl_lib"
  28 fi
  29 if test "x$openssl_include" != "x" ; then
  30   INCLUDES="$INCLUDES -I$openssl_include"
  31 fi
  32
  33 AC_MSG_RESULT([done.])
  34   ])
  35
  36 libcrypto=none
  37 AC_CHECK_LIB(crypto, SHA1_version, [
  38   libcrypto=yes
  39 ])
  40
  41 if test $libcrypto = none; then
  42   AC_MSG_ERROR(
  43 [It seems like OpenSSL is not installed on this system.  But perhaps
  44 you need to supply the exact location of the headers and libraries.
  45 You can try running configure with the --with-openssl=/DIRECTORY
  46 parameter.  If you installed the headers and libraries in a different
  47 location you can use --with-openssl-include=/DIR and
  48 --with-openssl-lib=/DIR.])
  49
  50 else
  51   LIBS="$LIBS -lcrypto"
  52 fi
  53
  54 ])