fix skia attribute overrides with gcc

chromium-83.0.4103.97-skia-gcc-no_sanitize-fixes.patch

@@ -0,0 +1,48 @@
+diff -up chromium-83.0.4103.97/third_party/skia/include/private/SkFloatingPoint.h.gcc-float-divide-by-zero chromium-83.0.4103.97/third_party/skia/include/private/SkFloatingPoint.h
+--- chromium-83.0.4103.97/third_party/skia/include/private/SkFloatingPoint.h.gcc-float-divide-by-zero	2020-06-15 11:09:01.218290365 -0400
++++ chromium-83.0.4103.97/third_party/skia/include/private/SkFloatingPoint.h	2020-06-15 11:14:15.900470624 -0400
+@@ -159,7 +159,15 @@ static inline int64_t sk_float_saturate2
+ // Cast double to float, ignoring any warning about too-large finite values being cast to float.
+ // Clang thinks this is undefined, but it's actually implementation defined to return either
+ // the largest float or infinity (one of the two bracketing representable floats).  Good enough!
++#if defined(__GNUC__) && __GNUC__ >= 8
++__attribute__((no_sanitize("float-cast-overflow")))
++#else
++# if defined(__GNUC__)
++__attribute__((no_sanitize_undefined))
++# else
+ [[clang::no_sanitize("float-cast-overflow")]]
++# endif
++#endif
+ static inline float sk_double_to_float(double x) {
+     return static_cast<float>(x);
+ }
+@@ -226,12 +234,28 @@ static inline float sk_float_rsqrt(float
+ // IEEE defines how float divide behaves for non-finite values and zero-denoms, but C does not
+ // so we have a helper that suppresses the possible undefined-behavior warnings.
+ 
++#if defined(__GNUC__) && __GNUC__ >= 8
++__attribute__((no_sanitize("float-divide-by-zero")))
++#else
++# if defined(__GNUC__)
++__attribute__((no_sanitize_undefined))
++# else
+ [[clang::no_sanitize("float-divide-by-zero")]]
++# endif
++#endif
+ static inline float sk_ieee_float_divide(float numer, float denom) {
+     return numer / denom;
+ }
+ 
++#if defined(__GNUC__) && __GNUC__ >= 8
++__attribute__((no_sanitize("float-divide-by-zero")))
++#else
++# if defined(__GNUC__)
++__attribute__((no_sanitize_undefined))
++# else
+ [[clang::no_sanitize("float-divide-by-zero")]]
++# endif
++#endif
+ static inline double sk_ieee_double_divide(double numer, double denom) {
+     return numer / denom;
+ }

chromium.spec

@@ -167,7 +167,7 @@ Name:		chromium%{chromium_channel}%{nsuffix}
 Name:		chromium%{chromium_channel}
 %endif
 Version:	%{majorversion}.0.4103.97
-Release:	3%{?dist}
+Release:	4%{?dist}
 %if %{?freeworld}
 %if %{?shared}
 # chromium-libs-media-freeworld
@@ -267,6 +267,8 @@ Patch87:	chromium-83-gcc-serviceworker.patch
 Patch88:	chromium-83-gcc-ozone-wayland.patch
 # https://gitweb.gentoo.org/repo/gentoo.git/plain/www-client/chromium/files/chromium-83-gcc-compatibility.patch
 Patch90:	chromium-83-gcc-compatibility.patch
+# Fix skia's handling of no_sanitize attributes to work with gcc
+Patch91:	chromium-83.0.4103.97-skia-gcc-no_sanitize-fixes.patch
 
 
 # Use lstdc++ on EPEL7 only
@@ -850,6 +852,7 @@ udev.
 %patch87 -p1 -b .gcc-serviceworker
 %patch88 -p1 -b .gcc-ozone-wayland
 %patch90 -p1 -b .gcc-compatibility
+%patch91 -p1 -b .gcc-no_sanitize
 
 # Fedora branded user agent
 %if 0%{?fedora}
@@ -1807,6 +1810,10 @@ getent group chrome-remote-desktop >/dev/null || groupadd -r chrome-remote-deskt
 
 
 %changelog
+* Mon Jun 15 2020 Tom Callaway <spot@fedoraproject.org> - 83.0.4103.97-4
+- use old cups handling on epel7
+- fix skia attribute overrides with gcc
+
 * Wed Jun 10 2020 Tom Callaway <spot@fedoraproject.org> - 83.0.4103.97-3
 - fix issue on epel7 where linux/kcmp.h does not exist