Added patch to allow for building under EPEL-8

libdispatch.spec

@@ -3,13 +3,14 @@
 
 Name:           libdispatch
 Version:        5.6.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Apple's Grand Central Dispatch library
 License:        ASL 2.0 
 URL:            https://github.com/apple/swift-corelibs-libdispatch
 
 Source0:        https://github.com/apple/swift-corelibs-libdispatch/archive/swift-%{reltag}.tar.gz#/corelibs-libdispatch.tar.gz
 
+Patch0:		noerrors.patch
 
 BuildRequires:  clang
 BuildRequires:  libbsd-devel
@@ -57,6 +58,7 @@ Development files for libdispatch
 %prep
 %setup -q -n swift-corelibs-libdispatch-swift-%{reltag}
 
+%patch0 -p0
 
 %build
 export CXX=clang++
@@ -84,6 +86,8 @@ chrpath --delete %{buildroot}%{_libdir}/libdispatch.so
 
 
 %changelog
+* Wed Mar 23 2022 Ron Olson <tachoknight@gmail.com> 5.6.0-2
+- Added patch to allow for building on EPEL-8
 * Tue Mar 22 2022 Ron Olson <tachoknight@gmail.com> 5.6.0-1
 - Updated to 5.6.0-RELEASE
 * Tue Dec 14 2021 Ron Olson <tachoknight@gmail.com> 5.5.2-1

noerrors.patch

@@ -0,0 +1,10 @@
+--- cmake/modules/DispatchCompilerWarnings.cmake.orig	2022-03-23 15:34:30.474065670 -0500
++++ cmake/modules/DispatchCompilerWarnings.cmake	2022-03-23 15:46:39.228684206 -0500
+@@ -2,7 +2,6 @@
+ if("${CMAKE_C_SIMULATE_ID}" STREQUAL "MSVC")
+   # TODO: someone needs to provide the msvc equivalent warning flags
+ else()
+-  add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Werror>)
+   add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wall>)
+   add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-Wextra>)
+