38 lines
853 B
Plaintext
38 lines
853 B
Plaintext
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dnl
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dnl AX_STACK_PROTECT_CC and AX_STACK_PROTECT_CXX
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dnl
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dnl checks for -fstack-protector with the C compiler and C++ compiler
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dnl respectively, if it exists then updates CFLAGS and CXXFLAGS respectively
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dnl
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AC_DEFUN([AX_STACK_PROTECT_CC],[
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AC_MSG_CHECKING([whether ${CC} accepts -fstack-protector])
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AC_LANG_PUSH([C])
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# Keep a copy of the old CFLAGS
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OLD_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -fstack-protector"
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AC_TRY_LINK(,, AC_MSG_RESULT(yes), [
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CFLAGS="$OLD_CFLAGS"
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AC_MSG_RESULT(no)
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])
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AC_LANG_POP([C])
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])
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AC_DEFUN([AX_STACK_PROTECT_CXX],[
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AC_MSG_CHECKING([whether ${CXX} accepts -fstack-protector])
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AC_LANG_PUSH([C++])
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# Keep a copy of the old CXXFLAGS
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OLD_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS -fstack-protector"
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AC_TRY_LINK(,, AC_MSG_RESULT(yes), [
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CXXFLAGS="$OLD_CXXFLAGS"
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AC_MSG_RESULT(no)
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])
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AC_LANG_POP([C++])
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])
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