Fix building with glibc from rosa2016.1

Removed patch fixed it in one place, but now the same fix is required in another place,
make a more generic solution (borrow it from systemd)
(XXX is mixing LGPL with Apache 2.0 OK here..?)

The error was the following:

```
[16040/48909] CXX obj/mojo/core/impl_for_embedder/channel_linux.o
FAILED: obj/mojo/core/impl_for_embedder/channel_linux.o
/opt/llvm12/bin/clang++ -MMD -MF obj/mojo/core/impl_for_embedder/channel_linux.o.d -DMOJO_SYSTEM_IMPL_IMPLEMENTATION -DUSE_UDEV -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_NSS_CERTS=1 -DUSE_OZONE=1 -DUSE_X11=1 -DOFFICIAL_BUILD -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNO_UNWIND_TABLES -D_GNU_SOURCE -DCR_CLANG_REVISION=\"llvmorg-13-init-6429-g0e92cbd6-2\" -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D_FORTIFY_SOURCE=2 -D_LIBCPP_ABI_UNSTABLE -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCPP_ENABLE_NODISCARD -D_LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS -DCR_LIBCXX_REVISION=8fa87946779682841e21e2da977eccfb6cb3bded -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_40 -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_40 -I../.. -Igen -I../../third_party/perfetto/include -Igen/third_party/perfetto/build_config -Igen/third_party/perfetto -I../../third_party/abseil-cpp -I../../third_party/boringssl/src/include -I../../third_party/protobuf/src -Igen/protoc_out -fno-delete-null-pointer-checks -fno-ident -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -fno-unwind-tables -fno-asynchronous-unwind-tables -fPIC -pthread -fcolor-diagnostics -fmerge-all-constants -fcrash-diagnostics-dir=../../tools/clang/crashreports -mllvm -instcombine-lower-dbg-declare=0 -flto=thin -fsplit-lto-unit -fwhole-program-vtables -fcomplete-member-pointers -m64 -march=x86-64 -msse3 -no-canonical-prefixes -Wall -Wextra -Wimplicit-fallthrough -Wunreachable-code -Wthread-safety -Wextra-semi -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-unneeded-internal-declaration -Wno-undefined-var-template -Wno-psabi -Wno-ignored-pragma-optimize -Wno-implicit-int-float-conversion -Wno-final-dtor-non-final-class -Wno-builtin-assume-aligned-alignment -Wno-deprecated-copy -Wno-non-c-typedef-for-linkage -Wno-max-tokens -fno-omit-frame-pointer -g0 -ftrivial-auto-var-init=pattern -fsanitize=cfi-vcall -fsanitize-blacklist=../../tools/cfi/ignores.txt -fsanitize=cfi-icall -fvisibility=hidden -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Wshadow -O2 -fdata-sections -ffunction-sections -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -DPROTOBUF_ALLOW_DEPRECATED=1 -std=c++14 -fno-trigraphs -Wno-trigraphs -fno-exceptions -fno-rtti -nostdinc++ -isystem../../buildtools/third_party/libc++/trunk/include -isystem../../buildtools/third_party/libc++abi/trunk/include -fvisibility-inlines-hidden -c ../../mojo/core/channel_linux.cc -o obj/mojo/core/impl_for_embedder/channel_linux.o
../../mojo/core/channel_linux.cc:109:29: error: use of undeclared identifier 'F_SEAL_SEAL'
constexpr int kMemFDSeals = F_SEAL_SEAL | F_SEAL_SHRINK | F_SEAL_GROW;
                            ^
../../mojo/core/channel_linux.cc:109:43: error: use of undeclared identifier 'F_SEAL_SHRINK'
constexpr int kMemFDSeals = F_SEAL_SEAL | F_SEAL_SHRINK | F_SEAL_GROW;
                                          ^
../../mojo/core/channel_linux.cc:109:59: error: use of undeclared identifier 'F_SEAL_GROW'
constexpr int kMemFDSeals = F_SEAL_SEAL | F_SEAL_SHRINK | F_SEAL_GROW;
                                                          ^
../../mojo/core/channel_linux.cc:153:23: error: use of undeclared identifier 'F_ADD_SEALS'
  if (fcntl(fd.get(), F_ADD_SEALS, kMemFDSeals) < 0) {
                      ^
../../mojo/core/channel_linux.cc:165:32: error: use of undeclared identifier 'F_GET_SEALS'
  if ((seals = fcntl(fd.get(), F_GET_SEALS)) < 0) {
                               ^
5 errors generated.
```

chromium-86.0.4240.80-fcntl-h.patch

@@ -1,26 +0,0 @@
-diff -up chromium-86.0.4240.75/sandbox/policy/linux/bpf_gpu_policy_linux.cc.epel7-kcmp chromium-86.0.4240.75/sandbox/policy/linux/bpf_gpu_policy_linux.cc
---- chromium-86.0.4240.75/sandbox/policy/linux/bpf_gpu_policy_linux.cc.epel7-kcmp	2020-10-20 11:58:00.449812627 -0400
-+++ chromium-86.0.4240.75/sandbox/policy/linux/bpf_gpu_policy_linux.cc	2020-10-20 11:58:32.919071919 -0400
-@@ -22,6 +22,22 @@
- #include "sandbox/policy/linux/sandbox_linux.h"
- #include "sandbox/policy/linux/sandbox_seccomp_bpf_linux.h"
- 
-+#ifndef F_LINUX_SPECIFIC_BASE
-+#define F_LINUX_SPECIFIC_BASE 1024
-+#endif
-+#ifndef F_SEAL_SEAL
-+#define F_SEAL_SEAL 0x0001
-+#endif
-+#ifndef F_SEAL_SHRINK
-+#define F_SEAL_SHRINK 0x0002
-+#endif
-+#ifndef F_SEAL_GROW
-+#define F_SEAL_GROW 0x0004
-+#endif
-+#ifndef F_ADD_SEALS
-+#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
-+#endif
-+
- using sandbox::bpf_dsl::Allow;
- using sandbox::bpf_dsl::Arg;
- using sandbox::bpf_dsl::Error;

chromium-browser-stable.spec

@@ -92,6 +92,9 @@ Source10:	%{name}.rpmlintrc
 Source11:	rpmlint-wrapper.sh
 # Bring xcb-proto with us (might need more than python on EPEL?)
 Source20:	https://www.x.org/releases/individual/proto/xcb-proto-%{xcb_version}.tar.xz
+# From https://github.com/systemd/systemd/blob/main/src/basic/missing_fcntl.h
+# to fix building on rosa2016.1 where glibc does not have /usr/include/bits/fcntl-linux.h
+Source21:	missing_fcntl.h
 Source30:	master_preferences
 Source31:	default_bookmarks.html
 Source32:	chromium.default
@@ -133,8 +136,6 @@ Patch600:	chromium-buildname-60.0.3112.90.patch
 Patch601:	chromium-62-include-cstdlib.patch
 
 # Add "ROSA" to the user agent string
-# Fix build /sandbox/policy/linux/bpf_gpu_policy_linux.cc on rosa2016.1
-Patch637:	chromium-86.0.4240.80-fcntl-h.patch
 Patch627:	chromium-68.0.3440.106-rosa-user-agent.patch
 # Fix building third_party/wayland on rosa2016.1
 Patch639:	wayland-strndup.patch
@@ -367,7 +368,6 @@ cp -f %{_gostsourcedir}/src/msspi/third_party/cprocsp/include/* third_party/bori
 %patch600 -p1
 %patch601 -p1
 %patch627 -p1
-%patch637 -p1
 %patch639 -p1
 %patch640 -p1
 %patch643 -p1
@@ -595,6 +595,10 @@ export LDFLAGS="-Wl,--threads=1"
 %endif
 %endif
 
+%if %{mdvver} < 201900
+grep -IrlE '#include([[:space:]])*<fcntl.h>' | xargs sed -i'' -E -e 's,#include([[:space:]])*<fcntl.h>,#include "%{SOURCE21}",'
+%endif
+
 out/Release/gn gen --script-executable=%{__python} --args='%{gn_config}' out/Release
 
 pushd out/Release

missing_fcntl.h

@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/* From systemd, commit db9ecf050165fd1033c6f81485917e229c4be537 */
+
+#pragma once
+
+#include <fcntl.h>
+
+#ifndef F_LINUX_SPECIFIC_BASE
+#define F_LINUX_SPECIFIC_BASE 1024
+#endif
+
+#ifndef F_SETPIPE_SZ
+#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
+#endif
+
+#ifndef F_GETPIPE_SZ
+#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
+#endif
+
+#ifndef F_ADD_SEALS
+#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
+#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
+
+#define F_SEAL_SEAL     0x0001  /* prevent further seals from being set */
+#define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
+#define F_SEAL_GROW     0x0004  /* prevent file from growing */
+#define F_SEAL_WRITE    0x0008  /* prevent writes */
+#endif
+
+#ifndef F_OFD_GETLK
+#define F_OFD_GETLK     36
+#define F_OFD_SETLK     37
+#define F_OFD_SETLKW    38
+#endif
+
+#ifndef MAX_HANDLE_SZ
+#define MAX_HANDLE_SZ 128
+#endif
+
+/* The precise definition of __O_TMPFILE is arch specific; use the
+ * values defined by the kernel (note: some are hexa, some are octal,
+ * duplicated as-is from the kernel definitions):
+ * - alpha, parisc, sparc: each has a specific value;
+ * - others: they use the "generic" value.
+ */
+
+#ifndef __O_TMPFILE
+#if defined(__alpha__)
+#define __O_TMPFILE     0100000000
+#elif defined(__parisc__) || defined(__hppa__)
+#define __O_TMPFILE     0400000000
+#elif defined(__sparc__) || defined(__sparc64__)
+#define __O_TMPFILE     0x2000000
+#else
+#define __O_TMPFILE     020000000
+#endif
+#endif
+
+/* a horrid kludge trying to make sure that this will fail on old kernels */
+#ifndef O_TMPFILE
+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
+#endif