提交

lib_src/so_src/libssh-0.9.8/cmake/Modules/CheckCCompilerFlagSSP.cmake

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+# - Check whether the C compiler supports a given flag in the
+# context of a stack checking compiler option.
+
+# CHECK_C_COMPILER_FLAG_SSP(FLAG VARIABLE)
+#
+#  FLAG - the compiler flag
+#  VARIABLE - variable to store the result
+#
+#  This actually calls check_c_source_compiles.
+#  See help for CheckCSourceCompiles for a listing of variables
+#  that can modify the build.
+
+# Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+# Requires cmake 3.10
+#include_guard(GLOBAL)
+include(CheckCSourceCompiles)
+
+macro(CHECK_C_COMPILER_FLAG_SSP _FLAG _RESULT)
+   set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
+   set(CMAKE_REQUIRED_FLAGS "${_FLAG}")
+
+   check_c_source_compiles("int main(int argc, char **argv) { char buffer[256]; return buffer[argc]=0;}" ${_RESULT})
+
+   set(CMAKE_REQUIRED_FLAGS "${SAFE_CMAKE_REQUIRED_FLAGS}")
+endmacro(CHECK_C_COMPILER_FLAG_SSP)