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#! /bin/sh
#
# osdef.sh -- copy osdef.h.in to osdef.h while removing declarations
# found in the system header files. Caution: weird sed magic going on here.
# Warnings are printed if sed did not survive.
#
# (C) Michael Schroeder, Juergen Weigert
#
# osdef.h.in has been split into osdef1.h.in and osdef2.h.in, because some
# sed's could not handle the amount of commands (is 50 commands the limit?).
#
# 31.10.95 jw.
if test -z "$CC"; then
CC=cc
fi
if test -z "$srcdir"; then
srcdir=.
fi
# Make sure collation works as expected
# swedish range [a-z] does not match 'w'
export LC_COLLATE=C
export LC_ALL=
rm -f core* *.core
cat << EOF > osdef0.c
#ifndef __APPLE__
# define select select_declared_wrong
#endif
#define tgetstr tgetstr_declared_wrong
#include "auto/config.h"
#include "os_unix.h" /* bring in most header files, more follow below */
#include "os_unixx.h" /* bring in header files for os_unix.c */
#ifdef HAVE_TERMCAP_H
# include <termcap.h> /* only for term.c */
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h> /* only used in a few files */
#endif
#ifdef HAVE_SYS_STATFS_H
# include <sys/types.h>
# include <sys/statfs.h> /* only for memfile.c */
#endif
#ifdef HAVE_X11
# include <X11/Intrinsic.h>
#endif
EOF
$CC -I. -I$srcdir -E osdef0.c >osdef0.cc
# insert a space in front of each line, so that a function name at the
# start of the line is matched with "[)*, ]\1[ (]"
sed < osdef0.cc -e '/\(..*\)/s// \1/' > osdef0.ccc
sed < $srcdir/osdef1.h.in -n -e '/^extern/s@.*[)* ][)* ]*\([a-zA-Z_][a-zA-Z0-9_]*\)(.*@/[)*, ][(]*\1[)]*[ (]/i\\\
\\/\\[^a-zA-Z_\\]\1(\\/d@p' > osdef11.sed
sed < $srcdir/osdef2.h.in -n -e '/^extern/s@.*[)* ][)* ]*\([a-zA-Z_][a-zA-Z0-9_]*\)(.*@/[)*, ][(]*\1[)]*[ (]/i\\\
\\/\\[^a-zA-Z_\\]\1(\\/d@p' > osdef21.sed
cat << EOF > osdef2.sed
1i\\
/*
1i\\
* osdef.h is automagically created from osdef?.h.in by osdef.sh -- DO NOT EDIT
1i\\
*/
EOF
cat osdef0.ccc | sed -n -f osdef11.sed >> osdef2.sed
sed -f osdef2.sed < $srcdir/osdef1.h.in > auto/osdef.h
cat osdef0.ccc | sed -n -f osdef21.sed > osdef2.sed
sed -f osdef2.sed < $srcdir/osdef2.h.in >> auto/osdef.h
rm osdef0.c osdef0.cc osdef0.ccc osdef11.sed osdef21.sed osdef2.sed
if test -f core*; then
file core*
echo " Sorry, your sed is broken. Call the system administrator."
echo " Meanwhile, you may try to compile Vim with an empty osdef.h file."
echo " If you compiler complains about missing prototypes, move the needed"
echo " ones from osdef1.h.in and osdef2.h.in to osdef.h."
exit 1
fi
cat $srcdir/osdef1.h.in $srcdir/osdef2.h.in >osdefX.h.in
if eval test "`diff auto/osdef.h osdefX.h.in | wc -l`" -eq 4; then
echo " Hmm, sed is very pessimistic about your system header files."
echo " But it did not dump core -- strange! Let's continue carefully..."
echo " If this fails, you may want to remove offending lines from osdef.h"
echo " or try with an empty osdef.h file, if your compiler can do without"
echo " function declarations."
fi
rm osdefX.h.in
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