selfcheck.sh: also run with system includes made available

Author: firewave

Makefile

@@ -16,7 +16,7 @@ test:	testrunner	simplecpp
 	python3 -m pytest integration_test.py -vv
 
 selfcheck:	simplecpp
-	./selfcheck.sh
+	CXX=$(CXX) ./selfcheck.sh
 
 simplecpp:	main.o simplecpp.o
 	$(CXX) $(LDFLAGS) main.o simplecpp.o -o simplecpp

selfcheck.sh

@@ -4,8 +4,76 @@ output=$(./simplecpp simplecpp.cpp -e -f 2>&1)
 ec=$?
 errors=$(echo "$output" | grep -v 'Header not found: <')
 if [ $ec -ne 0 ]; then
-  # only fail if got errors which do not refer to missing system includes
+  # only fail if we got errors which do not refer to missing system includes
   if [ ! -z "$errors" ]; then
     exit $ec
   fi
-fi
+fi
+
+if [ -z "$CXX" ]; then
+  exit 0
+fi
+
+cxx_type=$($CXX --version | head -1 | cut -d' ' -f1)
+if [ "$cxx_type" = "Ubuntu" ]; then
+  cxx_type=$($CXX --version | head -1 | cut -d' ' -f2)
+fi
+# TODO: how to get built-in include paths from compiler?
+if [ "$cxx_type" = "g++" ]; then
+  gcc_ver=$($CXX -dumpversion)
+  defs=
+  defs="$defs -D__GNUC__"
+  defs="$defs -D__STDC__"
+  defs="$defs -D__STDC_HOSTED__"
+  defs="$defs -D__CHAR_BIT__=8"
+  defs="$defs -D__has_builtin(x)=(1)"
+  defs="$defs -D__has_cpp_attribute(x)=(1)"
+  defs="$defs -D__has_attribute(x)=(1)"
+  # some required include paths might differ per distro
+  inc=
+  inc="$inc -I/usr/include"
+  inc="$inc -I/usr/include/linux"
+  inc="$inc -I/usr/include/c++/$gcc_ver"
+  inc="$inc -I/usr/include/c++/$gcc_ver/x86_64-pc-linux-gnu"
+  inc="$inc -I/usr/lib/gcc/x86_64-pc-linux-gnu/$gcc_ver/include"
+  if [ -d "/usr/include/x86_64-linux-gnu" ]; then
+    inc="inc -I/usr/include/x86_64-linux-gnu/c++/$gcc_ver"
+  fi
+  ./simplecpp simplecpp.cpp -e -f -std=gnu++11 $defs $inc
+  ec=$?
+  if [ $ec -ne 0 ]; then
+    exit $ec
+  fi
+elif [ "$cxx_type" = "clang" ]; then
+  clang_ver=$($CXX -dumpversion)
+  clang_ver=${clang_ver%%.*}
+  find /usr/include -name stubs-32.h
+  cxx_inc="/usr/include/c++/v1"
+  if [ ! -d "$cxx_inc" ]; then
+    cxx_inc="/usr/lib/llvm-$clang_ver/include/c++/v1"
+  fi
+  # some required include paths might differ per distro
+  extra_inc=
+  if [ -d "/usr/include/x86_64-linux-gnu" ]; then
+    extra_inc="$extra_inc -I/usr/include/x86_64-linux-gnu"
+  fi
+  ./simplecpp simplecpp.cpp -e -f -std=gnu++11 -D__BYTE_ORDER__ -D__linux__ -D"__has_feature(x)=(1)" -D"__has_extension(x)=(1)" -D"__has_attribute(x)=(0)" -D"__has_cpp_attribute(x)=(0)" -D"__has_include_next(x)=(0)" -D"__has_builtin(x)=(1)" -I"$cxx_inc" -I"/usr/include" -I"/usr/lib/clang/$clang_ver/include" $extra_inc
+  ec=$?
+  if [ $ec -ne 0 ]; then
+    exit $ec
+  fi
+elif [ "$cxx_type" = "Apple" ]; then
+  find /Applications -name endian.h
+  xcode_path="/Applications/Xcode_16.4.app"
+  if [ ! -d "$xcode_path" ]; then
+    xcode_path="/Applications/Xcode_15.2.app"
+  fi
+  ./simplecpp simplecpp.cpp -e -f -std=gnu++11 -D__BYTE_ORDER__ -D__APPLE__ -I"$xcode_path/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include" -I"$xcode_path/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/v1"
+  ec=$?
+  if [ $ec -ne 0 ]; then
+    exit $ec
+  fi
+else
+  echo "unknown compiler '$cxx_type'"
+  exit 1
+fi