cmulocal/openssl.m4

   1 dnl
   2 dnl macros for configure.in to detect openssl
   3 dnl $Id: openssl.m4,v 1.11 2006/05/17 18:30:19 murch Exp $
   4 dnl
   5
   6 AC_DEFUN([CMU_HAVE_OPENSSL], [
   7 AC_REQUIRE([CMU_FIND_LIB_SUBDIR])
   8 AC_ARG_WITH(openssl,[  --with-openssl=PATH     use OpenSSL from PATH],
   9         with_openssl=$withval, with_openssl="yes")
  10
  11         save_CPPFLAGS=$CPPFLAGS
  12         save_LDFLAGS=$LDFLAGS
  13
  14         if test -d $with_openssl; then
  15           CPPFLAGS="${CPPFLAGS} -I${with_openssl}/include"
  16           CMU_ADD_LIBPATH(${with_openssl}/$CMU_LIB_SUBDIR)
  17         fi
  18
  19 case "$with_openssl" in
  20         no)
  21           with_openssl="no";;
  22         *)
  23           dnl if openssl has been compiled with the rsaref2 libraries,
  24           dnl we need to include the rsaref libraries in the crypto check
  25                 LIB_RSAREF=""
  26                 AC_CHECK_LIB(rsaref, RSAPublicEncrypt,
  27                         cmu_have_rsaref=yes;
  28                         [AC_CHECK_LIB(RSAglue, RSAPublicEncrypt,
  29                                 LIB_RSAREF="-lRSAglue -lrsaref",
  30                                 LIB_RSAREF="-lrsaref")],
  31                         cmu_have_rsaref=no)
  32
  33                 AC_CHECK_HEADER(openssl/evp.h, [
  34                         AC_CHECK_LIB(crypto, EVP_DigestInit,
  35                                         with_openssl="yes",
  36                                         with_openssl="no", $LIB_RSAREF)],
  37                         with_openssl=no)
  38                 ;;
  39 esac
  40
  41         if test "$with_openssl" != "no"; then
  42                 AC_DEFINE(HAVE_OPENSSL,[],[Do we have OpenSSL?])
  43         else
  44                 CPPFLAGS=$save_CPPFLAGS
  45                 LDFLAGS=$save_LDFLAGS
  46         fi
  47 ])