fix: fix linux so link issue. (#733)

Author: cloudwebrtc

webrtc-sys/libwebrtc/build_linux.sh

@@ -75,13 +75,22 @@ cd build
 
 git apply "$COMMAND_DIR/patches/force_gcc.patch" -v --ignore-space-change --ignore-whitespace --whitespace=nowarn
 
-cd ../.. 
+cd ..
 
+cd third_party
+
+git apply "$COMMAND_DIR/patches/david_disable_gun_source_macro.patch" -v --ignore-space-change --ignore-whitespace --whitespace=nowarn
+
+cd ../..
 
 mkdir -p "$ARTIFACTS_DIR/lib"
 
 python3 "./src/build/linux/sysroot_scripts/install-sysroot.py" --arch="$arch"
 
+if [ "$arch" = "arm64" ]; then
+  sudo sed -i 's/__GLIBC_USE_ISOC2X[[:space:]]*1/__GLIBC_USE_ISOC2X\t0/' /usr/aarch64-linux-gnu/include/features.h
+fi
+
 debug="false"
 if [ "$profile" = "debug" ]; then
   debug="true"

webrtc-sys/libwebrtc/patches/david_disable_gun_source_macro.patch

@@ -0,0 +1,13 @@
+diff --git a/dav1d/BUILD.gn b/dav1d/BUILD.gn
+index 9348e15c3c..f34db7ff98 100644
+--- a/dav1d/BUILD.gn
++++ b/dav1d/BUILD.gn
+@@ -101,7 +101,7 @@ if (is_win) {
+     dav1d_copts += [ "-D_DARWIN_C_SOURCE" ]
+   }
+   if (is_linux || is_chromeos || is_android || current_os == "aix") {
+-    if (!is_clang) {
++    if (!is_clang && (current_cpu == "x86" || current_cpu == "x64")) {
+       dav1d_copts += [ "-D_GNU_SOURCE" ]
+     }
+   }

webrtc-sys/libwebrtc/patches/force_gcc.patch

@@ -1,25 +1,24 @@
-diff --git a/config/c++/c++.gni b/config/c++/c++.gni
-index c29d898fb..5ef014e51 100644
---- a/config/c++/c++.gni
-+++ b/config/c++/c++.gni
-@@ -62,7 +62,7 @@ declare_args() {
-   # case.
-   # We disable that on LibFuzzer builds because it breaks the libfuzzer
-   # runtime. See crbug.com/411020147.
--  use_llvm_libatomic = !is_apple && !is_nacl && !use_libfuzzer
-+  use_llvm_libatomic = !is_apple && !is_nacl && !use_libfuzzer && !is_linux
- }
+diff --git a/config/compiler/BUILD.gn b/config/compiler/BUILD.gn
+index fca6c9295..31b76f722 100644
+--- a/config/compiler/BUILD.gn
++++ b/config/compiler/BUILD.gn
+@@ -656,6 +656,7 @@ config("compiler") {
+       # standard-compliant __VA_OPT__ added by C++20, and switch the gcc build
+       # to -std=c*.
+       standard_prefix = "gnu"
++      defines += [ "_DEFAULT_SOURCE" ]
+     }
 
- if (use_implicit_libcxx_modules) {
+     cflags_c += [ "-std=${standard_prefix}11" ]
 diff --git a/config/linux/BUILD.gn b/config/linux/BUILD.gn
-index 131bb71d1..36c86c48e 100644
+index 131bb71d1..a928badd0 100644
 --- a/config/linux/BUILD.gn
 +++ b/config/linux/BUILD.gn
 @@ -15,6 +15,7 @@ group("linux") {
  # is applied to all targets. It is here to separate out the logic that is
  # Linux-only. This is not applied to Android, but is applied to ChromeOS.
  config("compiler") {
-+  cflags_cc = [ "-Wno-changes-meaning" ]
++  cflags_cc = [ "-Wno-changes-meaning", "-Wno-unknown-pragmas" ]
    if (current_cpu == "arm64") {
      import("//build/config/arm.gni")
      cflags = []