-
- AC_CACHE_CHECK([for openssl], tinc_cv_openssl_include,
- [
- AC_ARG_WITH(openssl,
- [ --with-openssl=DIR OpenSSL library and headers prefix],
- [echo -ne 'prefix...'
- openssl_lib="$withval/lib"
- openssl_include="$withval/include"]
+ AC_ARG_WITH(openssl,
+ AS_HELP_STRING([--with-openssl=DIR], [OpenSSL base directory, or:]),
+ [openssl="$withval"
+ CPPFLAGS="$CPPFLAGS -I$withval/include"
+ LDFLAGS="$LDFLAGS -L$withval/lib"]
+ )
+
+ AC_ARG_WITH(openssl-include,
+ AS_HELP_STRING([--with-openssl-include=DIR], [OpenSSL headers directory (without trailing /openssl)]),
+ [openssl_include="$withval"
+ CPPFLAGS="$CPPFLAGS -I$withval"]
+ )
+
+ AC_ARG_WITH(openssl-lib,
+ AS_HELP_STRING([--with-openssl-lib=DIR], [OpenSSL library directory]),
+ [openssl_lib="$withval"
+ LDFLAGS="$LDFLAGS -L$withval"]
+ )
+
+ 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]
+ )
+
+case $host_os in
+ *mingw*)
+ AC_CHECK_LIB(crypto, SHA1_version,
+ [LIBS="$LIBS -lcrypto -lgdi32"],
+ [AC_MSG_ERROR([OpenSSL libraries not found.])]