FreeCAD WebAssembly development snapshot

cMake/ConfigureChecks.cmake

@@ -0,0 +1,60 @@
+
+include(CheckIncludeFile)
+include(CheckIncludeFiles)
+include(CheckSymbolExists)
+include(CheckFunctionExists)
+include(CheckLibraryExists)
+include(CheckTypeSize)
+include(CheckCSourceCompiles)
+include(CheckIncludeFileCXX)
+include(CheckCXXSourceCompiles)
+
+check_include_file(GL/gl.h HAVE_GL_GL_H)
+
+# i/o streams
+check_include_file_cxx(istream HAVE_ISTREAM)
+check_include_file_cxx(ostream HAVE_OSTREAM)
+check_include_file_cxx(fstream HAVE_FSTREAM)
+check_include_file_cxx(sstream HAVE_SSTREAM)
+check_include_file_cxx(ios HAVE_IOS)
+check_include_file_cxx(iostream HAVE_IOSTREAM)
+check_include_file_cxx(iomanip HAVE_IOMANIP)
+
+include(TestForANSIStreamHeaders)
+IF(NOT CMAKE_NO_ANSI_STREAM_HEADERS)
+	SET(HAVE_STD_IOSTREAM 1)
+	SET(USE_STD_IOSTREAM 1)
+ENDIF(NOT CMAKE_NO_ANSI_STREAM_HEADERS)
+
+include(TestForSTDNamespace)
+IF(NOT CMAKE_NO_ANSI_STRING_STREAM)
+	SET(HAVE_NAMESPACES 1)
+ENDIF(NOT CMAKE_NO_ANSI_STRING_STREAM)
+
+SET(HAVE_QGLFORMAT_EQ_OP 1)
+SET(HAVE_QGLFORMAT_SETOVERLAY 1)
+SET(HAVE_QGLWIDGET_SETAUTOBUFFERSWAP 1)
+SET(HAVE_QT_KEYPAD_DEFINE 1)
+SET(HAVE_QWIDGET_SHOWFULLSCREEN 1)
+
+
+file(WRITE ${CMAKE_BINARY_DIR}/backtrace.cpp
+         "#include <cstddef>\n"
+         "#include <execinfo.h>\n\n"
+         "int main() {\n"
+         "    void *callstack[128];\n"
+         "    size_t nMaxFrames = sizeof(callstack) / sizeof(callstack[0]);\n"
+         "    size_t nFrames = backtrace(callstack, nMaxFrames);\n"
+         "    char **symbols = backtrace_symbols(callstack, nFrames);\n"
+         "    return 0;\n"
+         "}"
+)
+
+try_compile(
+  RESULT_VAR
+    ${CMAKE_BINARY_DIR}
+  SOURCES
+    ${CMAKE_BINARY_DIR}/backtrace.cpp
+)
+
+SET(HAVE_BACKTRACE_SYMBOLS ${RESULT_VAR})