Continuing to use the autotools build instead of new CMake

https://gitlab.com/soundtouch/soundtouch/-/issues/45

configure.ac.patch

@@ -0,0 +1,13 @@
+diff --git a/configure.ac b/configure.ac
+index c15e348..06ac3e7 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -33,7 +33,7 @@ AC_LANG(C++)
+ 
+ # Compiler flags. Apply -ffast-math to allow gcc autovectorization
+ # generate effective SIMD code.
+-CXXFLAGS="-O3 -ffast-math"
++CXXFLAGS+=" -O3 -ffast-math"
+ 
+ # Set AR_FLAGS to avoid build warning "ar: `u' modifier ignored since `D' is the default (see `U')"
+ AR_FLAGS='cr'

soundtouch.spec

@@ -1,13 +1,14 @@
 Name:           soundtouch
 Version:        2.3.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Audio Processing library for changing Tempo, Pitch and Playback Rates
 License:        LGPLv2+
 URL:            http://www.surina.net/soundtouch/
 Source0:        https://gitlab.com/soundtouch/soundtouch/-/archive/%{version}/%{name}-%{version}.tar.gz
-Patch0:         soname.patch
+BuildRequires:  make
 BuildRequires:  gcc-c++
-BuildRequires:  cmake
+BuildRequires:  autoconf automake libtool
+Patch0:         configure.ac.patch
 
 %description
 SoundTouch is a LGPL-licensed open-source audio processing library for
@@ -32,15 +33,32 @@ Libraries, include files, etc you can use to develop soundtouch applications.
 
 %prep
 %autosetup -p1
+autoreconf -iv
+# Remove -O3 because we have our default optimizations.
+sed -i 's|-O3||' source/SoundTouch/Makefile.*
+sed -i 's|-O3||' source/SoundStretch/Makefile.*
+# set correct version for .so build
+%define ltversion %(echo %{version} | tr '.' ':')
+sed -i 's/-rpath $(libdir)/-rpath $(libdir) -version-number %{ltversion}/' \
+  source/SoundTouch/Makefile.in
+# cleanup a bit
+sed -i 's|\r||g' README.html source/SoundTouch/RateTransposer.cpp
 
 
 %build
-%cmake
-%cmake_build
+%configure --disable-dependency-tracking --disable-static --enable-shared
+# Don't use rpath!
+sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
+sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
+%make_build
 
 
 %install
-%cmake_install
+%make_install
+rm %{buildroot}%{_libdir}/*.la
+
+# remove redundant installed docs
+rm -rf %{buildroot}%{_docdir}/%{name}
 
 # pkgconfig compat links for compat with older (API compatible) releases
 # dunno why upstream keeps changing the pkgconfig name
@@ -65,10 +83,14 @@ ln -s soundtouch.pc %{buildroot}%{_libdir}/pkgconfig/soundtouch-1.0.pc
 %{_libdir}/lib*.so
 %{_libdir}/pkgconfig/*.pc
 %{_includedir}/%{name}
-%{_libdir}/cmake/SoundTouch
+%{_datadir}/aclocal/%{name}.m4
 
 
 %changelog
+* Tue Aug 31 2021 Sérgio Basto <sergio@serjux.com> - 2.3.0-2
+- Continuing to use the autotools build instead of new CMake
+  https://gitlab.com/soundtouch/soundtouch/-/issues/45
+
 * Sun Aug 29 2021 Sérgio Basto <sergio@serjux.com> - 2.3.0-1
 - Update to 2.3.0 (#1998849)