%define _libdir64 %{_prefix}/lib64

%define sorev 0

Name:           libimagequant
Version:        2.12.2
Release:        1
Summary:        Palette quantization library
Group:          System Environment/Libraries
License:        GPLv3+ and MIT
URL:            https://github.com/ImageOptim/libimagequant
Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
Patch0:         %{name}-%{version}-aix.patch

BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-buildroot

BuildRequires:  make

%description
Small, portable C library for high-quality conversion of RGBA images to 8-bit
indexed-color (palette) images.

The library is available as 32-bit and 64-bit.


%package        devel
Summary:        Development files for %{name}
Group:          System Environment/Libraries
Requires:       %{name} = %{version}-%{release}

%description    devel
The %{name}-devel package contains libraries and header files for
developing applications that use %{name}.

If you are compiling a 32-bit program, no special compiler options are
needed.

If you are compiling a 64-bit program, you have to compile and link your
application with "xlc_r -q64" or "gcc -maix64".


%prep
%setup -q
%patch0
# fake a <stdbool.h> as AIX5L V5.1 and XLC/C++ V7 doesn't have one
cat > stdbool.h << EOF
#ifndef stdbool_h_wrapper
#define stdbool_h_wrapper

typedef enum {false = 0, true = 1} bool;

#endif
EOF
mkdir ../32bit
mv * ../32bit
mv ../32bit .
mkdir 64bit
cd 32bit && tar cf - . | (cd ../64bit ; tar xpf -)


%build
export CC="xlc_r -qlanglvl=stdc99"

export PATH=/opt/freeware/bin:$PATH

cd 64bit
# first build the 64-bit version
export OBJECT_MODE=64
export LDFLAGS="-L/opt/freeware/lib64 -L/opt/freeware/lib -Wl,-blibpath:/opt/freeware/lib64:/opt/freeware/lib:/usr/lib:/lib -Wl,-bmaxdata:0x80000000"
./configure \
    --prefix=%{_prefix} \
    --libdir=%{_libdir64} \
    --disable-sse \
    CC="${CC}" CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}"
gmake %{?_smp_mflags}

# create shared object
CreateExportList -X64 %{name}.exp %{name}.a
${CC} -qmkshrobj %{name}.a -o %{name}.so.%{sorev} -bE:%{name}.exp -bernotok -lm
rm -f lib%{name}.a %{name}.exp

cat imagequant.pc.in | sed 's|PREFIX|%{_prefix}|g' | sed 's|prefix}/lib|prefix}/lib64|g' > imagequant.pc

cd ../32bit
# now build the 32-bit version
export OBJECT_MODE=32
export LDFLAGS="-L/opt/freeware/lib -Wl,-blibpath:/opt/freeware/lib:/usr/lib:/lib -Wl,-bmaxdata:0x80000000"
./configure \
    --prefix=%{_prefix} \
    --disable-sse \
    CC="${CC}" CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}"
gmake %{?_smp_mflags}

# create shared object
CreateExportList -X32 %{name}.exp %{name}.a
${CC} -qmkshrobj %{name}.a -o %{name}.so.%{sorev} -bE:%{name}.exp -bernotok -lm
rm -f lib%{name}.a %{name}.exp

cat imagequant.pc.in | sed 's|PREFIX|%{_prefix}|g' > imagequant.pc


%install
[ "${RPM_BUILD_ROOT}" != "/" ] && rm -rf ${RPM_BUILD_ROOT}

mkdir -p ${RPM_BUILD_ROOT}%{_libdir}
mkdir -p ${RPM_BUILD_ROOT}%{_libdir}/pkgconfig
mkdir -p ${RPM_BUILD_ROOT}%{_libdir64}
mkdir -p ${RPM_BUILD_ROOT}%{_libdir64}/pkgconfig
mkdir -p ${RPM_BUILD_ROOT}%{_includedir}

cp 32bit/libimagequant.so.0 ${RPM_BUILD_ROOT}%{_libdir}
cp 64bit/libimagequant.so.0 ${RPM_BUILD_ROOT}%{_libdir64}

cp 32bit/imagequant.pc ${RPM_BUILD_ROOT}%{_libdir}/pkgconfig
cp 64bit/imagequant.pc ${RPM_BUILD_ROOT}%{_libdir64}/pkgconfig

cp 32bit/libimagequant.h ${RPM_BUILD_ROOT}%{_includedir}

/usr/bin/ar -X32 -rv ${RPM_BUILD_ROOT}%{_libdir}/libimagequant.a 32bit/libimagequant.so.0
/usr/bin/ar -X64 -q ${RPM_BUILD_ROOT}%{_libdir}/libimagequant.a 64bit/libimagequant.so.0

(
  cd ${RPM_BUILD_ROOT}
  for dir in include lib lib64
  do
    mkdir -p usr/${dir}
    cd usr/${dir}
    ln -sf ../..%{_prefix}/${dir}/* .
    cd -
  done
)


%clean
[ "${RPM_BUILD_ROOT}" != "/" ] && rm -rf ${RPM_BUILD_ROOT}


%files
%doc 32bit/COPYRIGHT
%doc 32bit/README.md 32bit/CHANGELOG
%{_libdir}/*.a
%{_libdir}/*.so*
%{_libdir64}/*.so*
/usr/lib/*.a
/usr/lib/*.so*
/usr/lib64/*.so*


%files devel
%{_includedir}/*
%{_libdir}/pkgconfig/imagequant.pc
%{_libdir64}/pkgconfig/imagequant.pc
/usr/include/*


%changelog
* Wed May 29 2019 Michael Perzl <michael@perzl.org> - 2.12.2-1
- first version for AIX V5.1 and higher