Update to 1.8.8 (#2330051)

This update also cleaned up the spec file.

.gitignore

@@ -21,3 +21,4 @@
 /alembic-1.8.5.tar.gz
 /alembic-1.8.6.tar.gz
 /alembic-1.8.7.tar.gz
+/alembic-1.8.8.tar.gz

alembic.spec

@@ -5,30 +5,18 @@
 # Python Module
 
 Name:           alembic
-Version:        1.8.7
+Version:        1.8.8
 Release:        %autorelease
 Summary:        Open framework for storing and sharing scene data
 License:        BSD-3-Clause AND BSL-1.0
 URL:            http://alembic.io/
-
 Source0:        https://github.com/%{name}/%{name}/archive/%{version}%{?prerelease}.tar.gz#/%{name}-%{version}%{?prerelease}.tar.gz
 
-# Use patch from Gentoo fixing iblmbase root path
-# https://gitweb.gentoo.org/repo/gentoo.git/tree/media-gfx/alembic/files/alembic-1.7.11-0002-Find-IlmBase-by-setting-a-proper-ILMBASE_ROOT-value.patch?id=953b3b21db55df987dd8006dcdec19e945294d98
-Patch0:         alembic-1.7.11-0002-Find-IlmBase-by-setting-a-proper-ILMBASE_ROOT-value.patch 
 BuildRequires:  boost-devel
 BuildRequires:  cmake >= 3.13
 BuildRequires:  gcc-c++
 BuildRequires:  hdf5-devel
-
-# Per https://github.com/alembic/alembic/blob/master/README.txt
-# alembic actually needs ilmbase, not OpenEXR.
-# As of OpenEXR 3.x Imath is now a standalone library.
-%if 0%{?fedora} > 34
 BuildRequires:  cmake(Imath)
-%else
-BuildRequires:  pkgconfig(IlmBase)
-%endif
 BuildRequires:  pkgconfig(zlib)
 
 %description

sources

@@ -1 +1 @@
-SHA512 (alembic-1.8.7.tar.gz) = 8dfa97001cf5d25755dad3f12cb6d60512e6bc59de76c9148a6f575cee7a70ddb562798f8856d3e4005eccdb33433ca7b459f8af1063f0f90afe2678d2dc5fa1
+SHA512 (alembic-1.8.8.tar.gz) = 02b7bf5782e83efb08a8653f130b02565fa997e857dbd8d0523e1b218ff58d929fbf9690db0980e8101a31f01a67341b6000af8794538890ef7d759fe0289e2f