Fix libdir value in PC file

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

fix-pc-libdir.patch

@@ -0,0 +1,12 @@
+diff --git a/imagequant.pc.in b/imagequant.pc.in
+index 16935b7..391ac9d 100644
+--- a/imagequant.pc.in
++++ b/imagequant.pc.in
+@@ -1,6 +1,6 @@
+ prefix=@PREFIX@
+ includedir=${prefix}/include
+-libdir=${prefix}/lib
++libdir=@LIBDIR@
+ 
+ Name: imagequant
+ Description: Small, portable C library for high-quality conversion of RGBA images to 8-bit indexed-color (palette) images.

libimagequant.spec

@@ -1,12 +1,14 @@
 Name:           libimagequant
 Version:        2.17.0
-Release:        4%{?dist}
+Release:        4.0.riscv64%{?dist}
 Summary:        Palette quantization library
 
 License:        GPLv3+ and MIT
 URL:            https://github.com/ImageOptim/libimagequant
 Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
 
+Patch0:         fix-pc-libdir.patch
+
 BuildRequires:  gcc
 BuildRequires:  make
 
@@ -55,6 +57,9 @@ rm -f %{buildroot}%{_libdir}/%{name}.a
 
 
 %changelog
+* Fri Apr 28 2023 David Abdurachmanov <davidlt@rivosinc.com> - 2.17.0-4.0.riscv64
+- Fix libdir value in PC file
+
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 2.17.0-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild