github: Use GitHub Actions

.github/workflows/build.yml

@@ -0,0 +1,67 @@
+name: Build
+
+on:
+    push: {paths: [src/**, .github/workflows/build.yml]}
+    pull_request: {paths: [src/**, .github/workflows/build.yml]}
+
+jobs:
+
+    unix:
+        runs-on: ${{ matrix.os }}
+        strategy:
+            fail-fast: false
+            matrix:
+                name: [linux-clang, linux-gcc]
+                include:
+                    - name: linux-clang
+                      os: ubuntu-18.04
+                      compiler: clang
+                    - name: linux-gcc
+                      os: ubuntu-18.04
+                      compiler: gcc
+        steps:
+            - name: Clone repository
+              uses: actions/checkout@v1
+            - name: Install packages
+              if: startsWith(matrix.os, 'ubuntu')
+              run: |
+                sudo apt-get update -qq
+                sudo apt-get install -y bison comerr-dev flex libcap-ng-dev libdb-dev libedit-dev libjson-perl libldap2-dev libncurses5-dev libperl4-corelibs-perl libsqlite3-dev libkeyutils-dev pkg-config python ss-dev texinfo unzip netbase keyutils ldap-utils gdb apport curl libmicrohttpd-dev jq valgrind
+                # Temporary workaround for:
+                # https://github.com/actions/virtual-environments/issues/3185
+                sudo hostname localhost
+            - name: Build
+              env:
+                CC: ${{ matrix.compiler }}
+                MAKEVARS: ${{ matrix.makevars }}
+                CONFIGURE_OPTS:  ${{ matrix.configureopts }}
+              run: |
+                /bin/sh ./autogen.sh
+                mkdir build
+                cd build
+                ../configure --srcdir=`dirname "$PWD"` --enable-maintainer-mode --enable-developer --with-ldap $CONFIGURE_OPTS --prefix=$HOME/inst CFLAGS="-Wno-error=shadow -Wno-error=bad-function-cast -Wno-error=unused-function -Wno-error=unused-result -Wno-error=deprecated-declarations"
+                ulimit -c unlimited
+                make -j4
+                make check
+                make install
+            - name: Valgrind output
+              run: |
+                find . -name \*.log -print0|xargs -0 grep '^==[1-9]' || true
+            - name: Core dump stacks
+              run: |
+                echo "thread apply all bt" > /tmp/x
+                find . -name core -print | while read core; do gdb -batch -x x `file "$core"|sed -e "s/^[^']*'//" -e "s/[ '].*$//"` "$core"; done
+                if [ "$(find . -name core -print | wc -l)" -gt 0 ]; then false; fi
+            - name: Test logs
+              if: ${{ failure() }}
+              run: |
+                find build -name \*.trs|xargs grep -lw FAIL|sed -e 's/trs$/log/'|xargs cat
+            - name: distclean
+              run: |
+                cd build
+                make distclean
+                if [ "$(git ls-files -o|grep -v ^build/ | wc -l)" -ne 0 ]; then
+                  echo "Files not removed by make distclean:"
+                  git ls-files -o|grep -v ^build/
+                fi
+