dnl Check to find the OpenSSL headers/libraries
-
-AC_DEFUN(tinc_OPENSSL,
+AC_DEFUN([tinc_OPENSSL],
[
AC_ARG_WITH(openssl,
- [ --with-openssl=DIR OpenSSL library and headers prefix],
- [openssl_lib="$withval/lib"
- openssl_include="$withval/include"]
+ AS_HELP_STRING([--with-openssl=DIR], [OpenSSL base directory, or:]),
+ [openssl="$withval"
+ CPPFLAGS="$CPPFLAGS -I$withval/include"
+ LDFLAGS="$LDFLAGS -L$withval/lib"]
)
- AC_CACHE_CHECK([for openssl headers], tinc_cv_openssl_include,
- [
- AC_ARG_WITH(openssl-include,
- [ --with-openssl-include=DIR OpenSSL headers directory],
- [tinc_cv_openssl_include="$withval"],
- [if test "x$openssl_include" = "x" ; then
- tinc_cv_openssl_include="none given"
- else
- tinc_cv_openssl_include=$openssl_include
- fi]
- )
- ])
- AC_CACHE_CHECK([for openssl libraries], tinc_cv_openssl_lib,
- [
- AC_ARG_WITH(openssl-lib,
- [ --with-openssl-lib=DIR OpenSSL library directory],
- [tinc_cv_openssl_lib="$withval"],
- [if test "x$openssl_lib" = "x" ; then
- tinc_cv_openssl_lib="none given"
- else
- tinc_cv_openssl_lib=$openssl_lib
- fi]
- )
- ])
-
-if test "$openssl_lib" != "none given" ; then
- LIBS="$LIBS -L$tinc_cv_openssl_lib"
-fi
-if test "$openssl_include" != "none given" ; then
- INCLUDES="$INCLUDES -I$tinc_cv_openssl_include"
-fi
-
-osi=none
-AC_CHECK_HEADERS(evp.h rsa.h,
-[osi=found
- break])
-
-if test "$osi" = "none" ; then
- AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h,
- [osi=found
- break])
-fi
-
-
-libcrypto=none
-if test "$osi" = "found" ; then
- AC_CHECK_LIB(crypto, SHA1_version, [
- libcrypto=yes
- ])
-fi
+ AC_ARG_WITH(openssl-include,
+ AS_HELP_STRING([--with-openssl-include=DIR], [OpenSSL headers directory (without trailing /openssl)]),
+ [openssl_include="$withval"
+ CPPFLAGS="$CPPFLAGS -I$withval"]
+ )
-if test $libcrypto = none; then
-cat <<EOF
+ AC_ARG_WITH(openssl-lib,
+ AS_HELP_STRING([--with-openssl-lib=DIR], [OpenSSL library directory]),
+ [openssl_lib="$withval"
+ LDFLAGS="$LDFLAGS -L$withval"]
+ )
-It seems like OpenSSL is not installed on this system. But perhaps
-you need to supply the exact location of the headers and libraries.
-You can try running configure with the --with-openssl=/DIRECTORY
-parameter. If you installed the headers and libraries in a different
-location you can use --with-openssl-include=/DIR and
---with-openssl-lib=/DIR.
+ AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h openssl/engine.h,
+ [],
+ [AC_MSG_ERROR([OpenSSL header files not found.]); break]
+ )
-EOF
+ AC_CHECK_LIB(crypto, EVP_EncryptInit_ex,
+ [LIBS="-lcrypto $LIBS"],
+ [AC_MSG_ERROR([OpenSSL libraries not found.])]
+ )
- AC_MSG_ERROR(OpenSSL not found.)
+case $host_os in
+ *mingw*)
+ ;;
+ *)
+ AC_CHECK_FUNC(dlopen,
+ [],
+ [AC_CHECK_LIB(dl, dlopen,
+ [LIBS="$LIBS -ldl"],
+ [AC_MSG_ERROR([OpenSSL depends on libdl.]); break]
+ )]
+ )
+ ;;
+esac
-else
- LIBS="$LIBS -lcrypto"
-fi
+ AC_CHECK_FUNCS([RAND_pseudo_bytes EVP_EncryptInit_ex], ,
+ [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
+ )
+ AC_CHECK_DECL([OpenSSL_add_all_algorithms], ,
+ [AC_MSG_ERROR([Missing OpenSSL functionality, make sure you have installed the latest version.]); break],
+ [#include <openssl/evp.h>]
+ )
])