diff --git a/curl.spec b/curl.spec
index ed97a93..6006a38 100644
--- a/curl.spec
+++ b/curl.spec
@@ -2,7 +2,7 @@
 
 Name:          curl
 Version:       7.55.1
-Release:       1mamba
+Release:       3mamba
 Summary:       A tool for transfering data with URL syntax that supports many protocols
 Group:         Applications/Networking
 Vendor:        openmamba
@@ -14,24 +14,25 @@ Patch0:        %{name}-7.21.2-gnutls.patch
 Patch1:        curl-7.34.0-dns-resolver-prefer-ipv4.patch
 Patch2:        curl-7.40.0-libgss-1.0.3.patch
 License:       MIT
-BuildRequires: bash
-BuildRequires: ldconfig
-BuildRequires: libgssapi-devel
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libcares-devel
-BuildRequires: libe2fs-devel
-BuildRequires: libgcrypt-devel
+BuildRequires: libffi-devel
+BuildRequires: libgmp-devel
 BuildRequires: libgnutls-devel
-BuildRequires: libgpg-error-devel
-%if "%{stage1}" != "1"
+BuildRequires: libgss-devel
 BuildRequires: libidn-devel
+BuildRequires: libnettle-devel
+%if "%{stage1}" != "1"
 BuildRequires: libopenldap-devel
-BuildRequires: libsasl-devel
-BuildRequires: libkrb5-devel
 %endif
 BuildRequires: libopenssl-devel
+BuildRequires: libp11-kit-devel
+BuildRequires: librtmp-devel
+BuildRequires: libsasl2-devel
 BuildRequires: libssh2-devel
+BuildRequires: libtasn1-devel
+BuildRequires: libunistring-devel
 BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 BuildRequires: pkgconfig
@@ -59,8 +60,6 @@ This tool offer a myriad of powerful features and full protocol control.
 %package -n %{libname}
 Summary:       Dynamic Libraries for cURL
 Group:         System/Libraries
-Provides:      %{libname}-gnutls
-Obsoletes:     %{libname}-gnutls
 %if "%{stage1}" != "1"
 Requires:      ca-certificates
 %endif
@@ -69,10 +68,22 @@ Requires:      ca-certificates
 Libcurl is a library for transfering data with URL syntax, supporting FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP.
 This library offer a myriad of powerful features and full protocol control.
 
+%package -n %{libname}-gnutls
+Summary:       Dynamic Libraries for cURL (linked against gnutls)
+Group:         System/Libraries
+%if "%{stage1}" != "1"
+Requires:      ca-certificates
+%endif
+
+%description -n %{libname}-gnutls
+Libcurl is a library for transfering data with URL syntax, supporting FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP.
+This library offer a myriad of powerful features and full protocol control.
+
 %package -n %{libname}-devel
 Summary:       Static libraries and header for %{libname}
 Group:         Development/Libraries
 Requires:      %{libname} = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      %{libname}-gnutls = %{?epoch:%epoch:}%{version}-%{release}
 Provides:      %{libname}-gnutls-devel
 Obsoletes:     %{libname}-gnutls-devel
 
@@ -84,10 +95,17 @@ This package contains static libraries and header files need for development.
 
 %prep
 %setup -q
+#-D -T
+#:<< _EOF
 %patch1 -p1
 #%patch2 -p1
 
+mkdir gnutls
+cd gnutls
+cp -r ../* . || true
+
 %build
+#:<< _EOF
 %configure \
    --enable-shared \
    --enable-static \
@@ -101,7 +119,6 @@ This package contains static libraries and header files need for development.
    --enable-tftp \
    --enable-ipv6 \
    --with-ssl \
-   --with-gnutls \
    --with-zlib \
    --with-random \
    --with-nss \
@@ -127,6 +144,45 @@ This package contains static libraries and header files need for development.
    CFLAGS="-lcares -lssh2"
 %endif
 
+cd gnutls
+sed -i "s|libcurl\.la|libcurl-gnutls\.la|g" lib/Makefile.am
+sed -i "s|libcurl_la|libcurl_gnutls_la|g" lib/Makefile.am
+autoreconf -f -i
+
+%configure \
+   --enable-shared \
+   --enable-static \
+   --enable-cookies \
+   --enable-crypto-auth \
+   --enable-http \
+   --enable-ftp \
+   --enable-file \
+   --enable-dict \
+   --enable-telnet \
+   --enable-tftp \
+   --enable-ipv6 \
+   --without-ssl \
+   --with-gnutls \
+   --with-zlib \
+   --with-random \
+   --with-nss \
+   --enable-verbose \
+   --disable-sspi \
+   --with-libssh2 \
+%if "%{stage1}" != "1"
+   --with-gssapi \
+   --enable-ldap \
+   --with-libidn \
+   --enable-manual \
+   --with-ca-bundle=%{_sysconfdir}/pki/tls/certs/ca-bundle.crt \
+%else
+   --without-krb5 \
+%endif
+   --enable-ares
+
+cd lib
+%make
+
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 # install development documentation
@@ -144,6 +200,13 @@ install -m644 docs/examples/{Makefile.example,README,*.c} \
 
 %makeinstall
 
+cd gnutls/lib/
+%makeinstall
+
+#for version in 3 4 4.0.0 4.1.0 4.2.0 4.3.0; do
+#  ln -s libcurl-gnutls.so.4.4.0 %{buildroot}%{_libdir}/libcurl-gnutls.so.${version}
+#done
+
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
@@ -161,6 +224,11 @@ install -m644 docs/examples/{Makefile.example,README,*.c} \
 %{_libdir}/libcurl.so.*
 %doc COPYING
 
+%files -n %{libname}-gnutls
+%defattr(-,root,root)
+%{_libdir}/libcurl-gnutls.so.*
+%doc COPYING
+
 %files -n %{libname}-devel
 %defattr(-,root,root)
 %{_bindir}/curl-config
@@ -168,6 +236,9 @@ install -m644 docs/examples/{Makefile.example,README,*.c} \
 %{_libdir}/libcurl.a
 %{_libdir}/libcurl.la
 %{_libdir}/libcurl.so
+%{_libdir}/libcurl-gnutls.a
+%{_libdir}/libcurl-gnutls.la
+%{_libdir}/libcurl-gnutls.so
 %{_libdir}/pkgconfig/libcurl.pc
 %{_datadir}/aclocal/libcurl.m4
 %{_mandir}/man1/curl-config.1*
@@ -179,6 +250,12 @@ install -m644 docs/examples/{Makefile.example,README,*.c} \
 %doc CHANGES README RELEASE-NOTES
 
 %changelog
+* Wed Aug 30 2017 Silvan Calarco <silvan.calarco@mambasoft.it> 7.55.1-3mamba
+- hack to fix libcurl-gnutls soname
+
+* Tue Aug 29 2017 Silvan Calarco <silvan.calarco@mambasoft.it> 7.55.1-2mamba
+- build and provide libcurl-gnutls
+
 * Wed Aug 16 2017 Automatic Build System <autodist@mambasoft.it> 7.55.1-1mamba
 - automatic version update by autodist