87 lines
2.5 KiB
Plaintext
87 lines
2.5 KiB
Plaintext
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#! /bin/sh
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# Create wrappers for include files instead of replacing them.
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#
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# This script is designed for systems whose include files can be fixed
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# by creating small wrappers around them.
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# An advantage of this method is that if the system include files are changed
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# (e.g. by OS upgrade), you need not re-run fixincludes.
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#
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# See README-fixinc for more information.
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# Directory containing the original header files.
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# (This was named INCLUDES, but that conflicts with a name in Makefile.in.)
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INPUT=${2-${INPUT-/usr/include}}
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# Directory in which to store the results.
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LIB=${1?"fixincludes: output directory not specified"}
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# Make sure it exists.
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if [ ! -d $LIB ]; then
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mkdir $LIB || exit 1
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fi
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echo Building fixed headers in ${LIB}
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# Some math.h files define struct exception, which conflicts with
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# the class exception defined in the C++ file std/stdexcept.h. We
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# redefine it to __math_exception. This is not a great fix, but I
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# haven't been able to think of anything better.
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file=math.h
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if [ -r $INPUT/$file ]; then
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echo Checking $INPUT/$file
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if grep 'struct exception' $INPUT/$file >/dev/null
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then
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echo Fixed $file
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rm -f $LIB/$file
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cat <<'__EOF__' >$LIB/$file
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#ifndef _MATH_H_WRAPPER
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#ifdef __cplusplus
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# define exception __math_exception
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#endif
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#include_next <math.h>
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#ifdef __cplusplus
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# undef exception
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#endif
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#define _MATH_H_WRAPPER
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#endif /* _MATH_H_WRAPPER */
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__EOF__
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# Define _MATH_H_WRAPPER at the end of the wrapper, not the start,
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# so that if #include_next gets another instance of the wrapper,
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# this will follow the #include_next chain until we arrive at
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# the real <math.h>.
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chmod a+r $LIB/$file
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fi
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fi
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# Avoid the definition of the bool type in the Solaris 2.x curses.h when using
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# g++, since it's now an official type in the C++ language.
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file=curses.h
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if [ -r $INPUT/$file ]; then
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echo Checking $INPUT/$file
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w='[ ]'
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if grep "typedef$w$w*char$w$w*bool$w*;" $INPUT/$file >/dev/null
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then
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echo Fixed $file
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rm -f $LIB/$file
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cat <<'__EOF__' >$LIB/$file
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#ifndef _CURSES_H_WRAPPER
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#ifdef __cplusplus
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# define bool __curses_bool_t
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#endif
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#include_next <curses.h>
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#ifdef __cplusplus
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# undef bool
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#endif
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#define _CURSES_H_WRAPPER
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#endif /* _CURSES_H_WRAPPER */
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__EOF__
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# Define _CURSES_H_WRAPPER at the end of the wrapper, not the start,
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# so that if #include_next gets another instance of the wrapper,
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# this will follow the #include_next chain until we arrive at
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# the real <curses.h>.
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chmod a+r $LIB/$file
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fi
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fi
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exit 0
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