fix libelf for android ndk r26b (#3169)

* fix libelf

* improve ndk

* fix stdc headers

* fix int64

* fix int64

.github/workflows/android.yml

@@ -12,12 +12,13 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         arch: [armeabi-v7a, arm64-v8a]
+        ndk: ["r22", "r26b"]
         ndk_sdkver: ["29", "21"]
 
     runs-on: ${{ matrix.os }}
 
     concurrency:
-        group: ${{ github.ref }}-${{ github.base_ref }}-${{ github.head_ref }}-Android-${{ matrix.arch }}-${{ matrix.ndk_sdkver }}
+        group: ${{ github.ref }}-${{ github.base_ref }}-${{ github.head_ref }}-Android-${{ matrix.arch }}-${{ matrix.ndk }}-${{ matrix.ndk_sdkver }}
         cancel-in-progress: true
     steps:
       - uses: actions/checkout@v1
@@ -29,10 +30,15 @@ jobs:
 
       - name: Prepare
         run: |
+          if test ${{ matrix.ndk }} = "r26b"; then
+            wget -q https://dl.google.com/android/repository/android-ndk-r26b-linux.zip
+            unzip -q -o ./android-ndk-r26b-linux.zip
+          else
             wget -q https://dl.google.com/android/repository/android-ndk-r22-linux-x86_64.zip
             unzip -q -o ./android-ndk-r22-linux-x86_64.zip
+          fi
 
       - name: Tests
         run: |
-          xmake l ./scripts/test.lua -D -p android --ndk=`pwd`/android-ndk-r22 --ndk_sdkver=${{ matrix.ndk_sdkver }} -a ${{ matrix.arch }}
+          xmake l ./scripts/test.lua -D -p android --ndk=`pwd`/android-ndk-${{ matrix.ndk }} --ndk_sdkver=${{ matrix.ndk_sdkver }} -a ${{ matrix.arch }}
 

packages/l/libelf/xmake.lua

@@ -25,15 +25,15 @@ package("libelf")
             io.replace("./configure", "#define off_t long", "")
             io.replace("lib/private.h", "HAVE_MEMMOVE", "1")
             io.replace("lib/private.h", "HAVE_MEMCPY", "1")
+            io.replace("lib/private.h", "STDC_HEADERS", "1")
             table.insert(cxflags, "-D__LIBELF64=1")
-            table.insert(cxflags, "-D__LIBELF64_LINUX=1")
             table.insert(cxflags, "-D__libelf_u64_t=uint64_t")
             table.insert(cxflags, "-D__libelf_i64_t=int64_t")
             package:add("defines", "__LIBELF64=1")
-            package:add("defines", "__LIBELF64_LINUX=1")
             package:add("defines", "__libelf_u64_t=uint64_t")
             package:add("defines", "__libelf_i64_t=int64_t")
         end
+        io.replace("./configure", "main(){return(0);}", "int main(){return(0);}", {plain = true})
         import("package.tools.autoconf").install(package, configs, {cxflags = cxflags})
     end)