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1 #! /bin/sh
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2 #
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3 # osdef.sh -- copy osdef.h.in to osdef.h while removing declarations
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4 # found in the system header files. Caution: weird sed magic going on here.
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5 # Warnings are printed if sed did not survive.
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6 #
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7 # (C) Michael Schroeder, Juergen Weigert
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8 #
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9 # osdef.h.in has been split into osdef1.h.in and osdef2.h.in, because some
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10 # sed's could not handle the amount of commands (is 50 commands the limit?).
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11 #
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12 # 31.10.95 jw.
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13
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14 if test -z "$CC"; then
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15 CC=cc
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16 fi
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17 if test -z "$srcdir"; then
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18 srcdir=.
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19 fi
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20
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21 rm -f core* *.core
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22
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23 cat << EOF > osdef0.c
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24 #ifndef __APPLE__
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25 # define select select_declared_wrong
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26 #endif
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27 #define tgetstr tgetstr_declared_wrong
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28 #include "auto/config.h"
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29 #include "os_unix.h" /* bring in most header files, more follow below */
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30 #include "os_unixx.h" /* bring in header files for os_unix.c */
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31
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32 #ifdef HAVE_TERMCAP_H
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33 # include <termcap.h> /* only for term.c */
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34 #endif
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35
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36 #ifdef HAVE_FCNTL_H
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37 # include <fcntl.h> /* only used in a few files */
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38 #endif
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39
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40 #ifdef HAVE_SYS_STATFS_H
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41 # include <sys/types.h>
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42 # include <sys/statfs.h> /* only for memfile.c */
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43 #endif
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44
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45 #ifdef HAVE_X11
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46 # include <X11/Intrinsic.h>
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47 #endif
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48 EOF
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49
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50 # Mac uses precompiled headers, but we need real headers here.
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51 case `uname` in
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52 Darwin) $CC -I. -I$srcdir -E -no-cpp-precomp osdef0.c >osdef0.cc;;
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53 *) $CC -I. -I$srcdir -E osdef0.c >osdef0.cc;;
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54 esac
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55
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56 # insert a space in front of each line, so that a function name at the
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57 # start of the line is matched with "[)*, ]\1[ (]"
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58 sed < osdef0.cc -e '/\(..*\)/s// \1/' > osdef0.ccc
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59
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60 sed < $srcdir/osdef1.h.in -n -e '/^extern/s@.*[)* ][)* ]*\([a-zA-Z_][a-zA-Z0-9_]*\) __ARGS.*@/[)*, ][(]*\1[)]*[ (]/i\\\
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61 \\/\\[^a-zA-Z_\\]\1 __ARGS\\/d@p' > osdef11.sed
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62
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63 sed < $srcdir/osdef2.h.in -n -e '/^extern/s@.*[)* ][)* ]*\([a-zA-Z_][a-zA-Z0-9_]*\) __ARGS.*@/[)*, ][(]*\1[)]*[ (]/i\\\
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64 \\/\\[^a-zA-Z_\\]\1 __ARGS\\/d@p' > osdef21.sed
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65
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66 cat << EOF > osdef2.sed
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67 1i\\
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68 /*
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69 1i\\
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70 * osdef.h is automagically created from osdef?.h.in by osdef.sh -- DO NOT EDIT
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71 1i\\
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72 */
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73 EOF
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74
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75 cat osdef0.ccc | sed -n -f osdef11.sed >> osdef2.sed
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76 sed -f osdef2.sed < $srcdir/osdef1.h.in > auto/osdef.h
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77
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78 cat osdef0.ccc | sed -n -f osdef21.sed > osdef2.sed
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79 sed -f osdef2.sed < $srcdir/osdef2.h.in >> auto/osdef.h
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80
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81 rm osdef0.c osdef0.cc osdef0.ccc osdef11.sed osdef21.sed osdef2.sed
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82
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83 if test -f core*; then
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84 file core*
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85 echo " Sorry, your sed is broken. Call the system administrator."
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86 echo " Meanwhile, you may try to compile Vim with an empty osdef.h file."
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87 echo " If you compiler complains about missing prototypes, move the needed"
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88 echo " ones from osdef1.h.in and osdef2.h.in to osdef.h."
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89 exit 1
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90 fi
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91 cat $srcdir/osdef1.h.in $srcdir/osdef2.h.in >osdefX.h.in
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92 if eval test "`diff auto/osdef.h osdefX.h.in | wc -l`" -eq 4; then
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93 echo " Hmm, sed is very pessimistic about your system header files."
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94 echo " But it did not dump core -- strange! Let's continue carefully..."
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95 echo " If this fails, you may want to remove offending lines from osdef.h"
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96 echo " or try with an empty osdef.h file, if your compiler can do without"
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97 echo " function declarations."
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98 fi
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99 rm osdefX.h.in
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