diff --git a/meson-0.45.1-rpm-macros.path b/meson-0.45.1-rpm-macros.path
new file mode 100644
index 0000000..81029b3
--- /dev/null
+++ b/meson-0.45.1-rpm-macros.path
@@ -0,0 +1,28 @@
+--- meson-0.45.1/data/macros.meson.orig	2018-03-22 15:23:16.000000000 +0100
++++ meson-0.45.1/data/macros.meson	2018-03-29 15:53:59.659386285 +0200
+@@ -2,11 +2,11 @@
+ %__meson_wrap_mode nodownload
+ 
+ %meson \
+-    export CFLAGS="${CFLAGS:-%__global_cflags}"       \
+-    export CXXFLAGS="${CXXFLAGS:-%__global_cxxflags}" \
+-    export FFLAGS="${FFLAGS:-%__global_fflags}"       \
+-    export FCFLAGS="${FCFLAGS:-%__global_fcflags}"    \
+-    export LDFLAGS="${LDFLAGS:-%__global_ldflags}"    \
++    export CFLAGS="${CFLAGS:-%optflags}"       \
++    export CXXFLAGS="${CXXFLAGS:-%optflags}" \
++    export FFLAGS="${FFLAGS:-%optflags}"       \
++    export FCFLAGS="${FCFLAGS}"    \
++    export LDFLAGS="${LDFLAGS}"    \
+     %{__meson}                              \\\
+         --buildtype=plain                   \\\
+         --prefix=%{_prefix}                 \\\
+@@ -23,7 +23,7 @@
+         --localstatedir=%{_localstatedir}   \\\
+         --sharedstatedir=%{_sharedstatedir} \\\
+         --wrap-mode=%{__meson_wrap_mode}    \\\
+-        %{_vpath_srcdir} %{_vpath_builddir} \\\
++        . build \\\
+         %{nil}
+ 
+ %meson_build \
diff --git a/meson.spec b/meson.spec
index e5fa3a6..cf540c1 100644
--- a/meson.spec
+++ b/meson.spec
@@ -1,6 +1,6 @@
 Name:          meson
 Version:       0.45.1
-Release:       1mamba
+Release:       2mamba
 Summary:       The Meson Build System
 Group:         Development/Tools
 Vendor:        openmamba
@@ -9,6 +9,7 @@ Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://mesonbuild.com/
 ## GITSOURCE https://github.com/mesonbuild/meson.git 0.43.0
 Source:        https://github.com/mesonbuild/meson.git/%{version}/meson-%{version}.tar.bz2
+Patch0:        meson-0.45.1-rpm-macros.path
 License:       Apache License 2.0
 ## AUTOBUILDREQ-BEGIN
 ## AUTOBUILDREQ-END
@@ -16,6 +17,7 @@ BuildRequires: libpython36-devel
 BuildRequires: python-pathlib-py3
 Requires:      python-pathlib-py3
 Requires:      python36 >= %python36_version
+Requires:      ninja
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -25,6 +27,7 @@ The Meson Build System.
 
 %prep
 %setup -q
+%patch0 -p1
 
 %build
 CFLAGS="%{optflags}" %{__python36} setup.py build
@@ -40,6 +43,8 @@ CFLAGS="%{optflags}" %{__python36} setup.py build
 
 sed -i "s,.*/man/.*,&.gz," %{name}.filelist
 
+install -D -m0644 data/macros.meson %{buildroot}%{_sysconfdir}/rpm/macros.meson
+
 %find_lang %{name} || touch %{name}.lang
 
 %clean
@@ -47,9 +52,13 @@ sed -i "s,.*/man/.*,&.gz," %{name}.filelist
 
 %files %{?pyappend} -f %{name}.filelist
 %defattr(-,root,root)
+%{_sysconfdir}/rpm/macros.meson
 %doc COPYING
 
 %changelog
+* Thu Mar 29 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 0.45.1-2mamba
+- install rpm macros.meson file
+
 * Thu Mar 22 2018 Automatic Build System <autodist@mambasoft.it> 0.45.1-1mamba
 - automatic version update by autodist