diff --git a/mingw-libtiff.spec b/mingw-libtiff.spec
index 0e302d6..320738b 100644
--- a/mingw-libtiff.spec
+++ b/mingw-libtiff.spec
@@ -25,10 +25,6 @@ BuildRequires:  mingw64-gcc
 BuildRequires:  mingw64-gcc-c++
 BuildRequires:  mingw64-binutils
 
-BuildRequires:  autoconf
-BuildRequires:  automake
-BuildRequires:  libtool
-
 
 %description
 The libtiff package contains a library of functions for manipulating
@@ -89,15 +85,6 @@ Static version of the MinGW Windows LibTIFF library.
 %prep
 %setup -q -n tiff-%{version}
 
-# Use build system's libtool.m4, not the one in the package.
-#rm -f libtool.m4
-
-#libtoolize --force --copy
-#aclocal -I . -I m4
-#automake --add-missing --copy
-#autoconf
-#autoheader
-
 
 %build
 export MINGW32_CFLAGS="%{mingw32_cflags} -fno-strict-aliasing"