source: rtems/cpukit/zlib/configure @ 0c325da4

4.104.114.84.95
Last change on this file since 0c325da4 was 959f7df2, checked in by Ralf Corsepius <ralf.corsepius@…>, on 10/28/05 at 07:22:42

Import of zlib-1.2.2.2.tar.gz

  • Property mode set to 100755
File size: 12.5 KB
Line 
1#!/bin/sh
2# configure script for zlib. This script is needed only if
3# you wish to build a shared library and your system supports them,
4# of if you need special compiler, flags or install directory.
5# Otherwise, you can just use directly "make test; make install"
6#
7# To create a shared library, use "configure --shared"; by default a static
8# library is created. If the primitive shared library support provided here
9# does not work, use ftp://prep.ai.mit.edu/pub/gnu/libtool-*.tar.gz
10#
11# To impose specific compiler or flags or install directory, use for example:
12#    prefix=$HOME CC=cc CFLAGS="-O4" ./configure
13# or for csh/tcsh users:
14#    (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
15# LDSHARED is the command to be used to create a shared library
16
17# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
18# If you have problems, try without defining CC and CFLAGS before reporting
19# an error.
20
21LIBS=libz.a
22LDFLAGS="-L. ${LIBS}"
23VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
24VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h`
25VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h`
26AR=${AR-"ar rc"}
27RANLIB=${RANLIB-"ranlib"}
28prefix=${prefix-/usr/local}
29exec_prefix=${exec_prefix-'${prefix}'}
30libdir=${libdir-'${exec_prefix}/lib'}
31includedir=${includedir-'${prefix}/include'}
32mandir=${mandir-'${prefix}/share/man'}
33shared_ext='.so'
34shared=0
35gcc=0
36old_cc="$CC"
37old_cflags="$CFLAGS"
38
39while test $# -ge 1
40do
41case "$1" in
42    -h* | --h*)
43      echo 'usage:'
44      echo '  configure [--shared] [--prefix=PREFIX]  [--exec_prefix=EXPREFIX]'
45      echo '     [--libdir=LIBDIR] [--includedir=INCLUDEDIR]'
46        exit 0;;
47    -p*=* | --p*=*) prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
48    -e*=* | --e*=*) exec_prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
49    -l*=* | --libdir=*) libdir=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
50    -i*=* | --includedir=*) includedir=`echo $1 | sed 's/[-a-z_]*=//'`;shift;;
51    -p* | --p*) prefix="$2"; shift; shift;;
52    -e* | --e*) exec_prefix="$2"; shift; shift;;
53    -l* | --l*) libdir="$2"; shift; shift;;
54    -i* | --i*) includedir="$2"; shift; shift;;
55    -s* | --s*) shared=1; shift;;
56    *) echo "unknown option: $1"; echo "$0 --help for help"; exit 1;;
57    esac
58done
59
60test=ztest$$
61cat > $test.c <<EOF
62extern int getchar();
63int hello() {return getchar();}
64EOF
65
66test -z "$CC" && echo Checking for gcc...
67cc=${CC-gcc}
68cflags=${CFLAGS-"-O3"}
69# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
70case "$cc" in
71  *gcc*) gcc=1;;
72esac
73
74if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
75  CC="$cc"
76  SFLAGS=${CFLAGS-"-fPIC -O3"}
77  CFLAGS="$cflags"
78  case `(uname -s || echo unknown) 2>/dev/null` in
79  Linux | linux | GNU | GNU/*) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1"};;
80  CYGWIN* | Cygwin* | cygwin* | OS/2* )
81             EXE='.exe';;
82  QNX*)  # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
83         # (alain.bonnefoy@icbt.com)
84                 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"};;
85  HP-UX*)        LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
86                 shared_ext='.sl'
87                 SHAREDLIB='libz.sl';;
88  Darwin*)   shared_ext='.dylib'
89             SHAREDLIB=libz$shared_ext
90             SHAREDLIBV=libz.$VER$shared_ext
91             SHAREDLIBM=libz.$VER1$shared_ext
92             LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER"};;
93  *)             LDSHARED=${LDSHARED-"$cc -shared"};;
94  esac
95else
96  # find system name and corresponding cc options
97  CC=${CC-cc}
98  case `(uname -sr || echo unknown) 2>/dev/null` in
99  HP-UX*)    SFLAGS=${CFLAGS-"-O +z"}
100             CFLAGS=${CFLAGS-"-O"}
101#            LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
102             LDSHARED=${LDSHARED-"ld -b"}
103             shared_ext='.sl'
104             SHAREDLIB='libz.sl';;
105  IRIX*)     SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
106             CFLAGS=${CFLAGS-"-ansi -O2"}
107             LDSHARED=${LDSHARED-"cc -shared"};;
108  OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
109             CFLAGS=${CFLAGS-"-O -std1"}
110             LDSHARED=${LDSHARED-"cc -shared  -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"};;
111  OSF1*)     SFLAGS=${CFLAGS-"-O -std1"}
112             CFLAGS=${CFLAGS-"-O -std1"}
113             LDSHARED=${LDSHARED-"cc -shared"};;
114  QNX*)      SFLAGS=${CFLAGS-"-4 -O"}
115             CFLAGS=${CFLAGS-"-4 -O"}
116             LDSHARED=${LDSHARED-"cc"}
117             RANLIB=${RANLIB-"true"}
118             AR="cc -A";;
119  SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
120             CFLAGS=${CFLAGS-"-O3"}
121             LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};;
122  SunOS\ 5*) SFLAGS=${CFLAGS-"-fast -xcg89 -KPIC -R."}
123             CFLAGS=${CFLAGS-"-fast -xcg89"}
124             LDSHARED=${LDSHARED-"cc -G"};;
125  SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
126             CFLAGS=${CFLAGS-"-O2"}
127             LDSHARED=${LDSHARED-"ld"};;
128  SunStudio\ 9*) SFLAGS=${CFLAGS-"-DUSE_MMAP -fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
129             CFLAGS=${CFLAGS-"-DUSE_MMAP -fast -xtarget=ultra3 -xarch=v9b"}
130             LDSHARED=${LDSHARED-"cc -xarch=v9b"};;
131  UNIX_System_V\ 4.2.0)
132             SFLAGS=${CFLAGS-"-KPIC -O"}
133             CFLAGS=${CFLAGS-"-O"}
134             LDSHARED=${LDSHARED-"cc -G"};;
135  UNIX_SV\ 4.2MP)
136             SFLAGS=${CFLAGS-"-Kconform_pic -O"}
137             CFLAGS=${CFLAGS-"-O"}
138             LDSHARED=${LDSHARED-"cc -G"};;
139  OpenUNIX\ 5)
140             SFLAGS=${CFLAGS-"-KPIC -O"}
141             CFLAGS=${CFLAGS-"-O"}
142             LDSHARED=${LDSHARED-"cc -G"};;
143  AIX*)  # Courtesy of dbakker@arrayasolutions.com
144             SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
145             CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
146             LDSHARED=${LDSHARED-"xlc -G"};;
147  # send working options for other systems to support@gzip.org
148  *)         SFLAGS=${CFLAGS-"-O"}
149             CFLAGS=${CFLAGS-"-O"}
150             LDSHARED=${LDSHARED-"cc -shared"};;
151  esac
152fi
153
154SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
155SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
156SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
157
158if test $shared -eq 1; then
159  echo Checking for shared library support...
160  # we must test in two steps (cc then ld), required at least on SunOS 4.x
161  if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" &&
162     test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then
163    CFLAGS="$SFLAGS"
164    LIBS="$SHAREDLIBV"
165    echo Building shared library $SHAREDLIBV with $CC.
166  elif test -z "$old_cc" -a -z "$old_cflags"; then
167    echo No shared library support.
168    shared=0;
169  else
170    echo 'No shared library support; try without defining CC and CFLAGS'
171    shared=0;
172  fi
173fi
174if test $shared -eq 0; then
175  LDSHARED="$CC"
176  echo Building static library $LIBS version $VER with $CC.
177else
178  LDFLAGS="-L. ${SHAREDLIBV}"
179fi
180
181cat > $test.c <<EOF
182#include <unistd.h>
183int main() { return 0; }
184EOF
185if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
186  sed < zconf.in.h "/HAVE_UNISTD_H/s%0%1%" > zconf.h
187  echo "Checking for unistd.h... Yes."
188else
189  cp -p zconf.in.h zconf.h
190  echo "Checking for unistd.h... No."
191fi
192
193cat > $test.c <<EOF
194#include <stdio.h>
195#include <stdarg.h>
196#include "zconf.h"
197
198int main()
199{
200#ifndef STDC
201  choke me
202#endif
203
204  return 0;
205}
206EOF
207
208if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
209  echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()"
210
211  cat > $test.c <<EOF
212#include <stdio.h>
213#include <stdarg.h>
214
215int mytest(char *fmt, ...)
216{
217  char buf[20];
218  va_list ap;
219
220  va_start(ap, fmt);
221  vsnprintf(buf, sizeof(buf), fmt, ap);
222  va_end(ap);
223  return 0;
224}
225
226int main()
227{
228  return (mytest("Hello%d\n", 1));
229}
230EOF
231
232  if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
233    echo "Checking for vsnprintf() in stdio.h... Yes."
234
235    cat >$test.c <<EOF
236#include <stdio.h>
237#include <stdarg.h>
238
239int mytest(char *fmt, ...)
240{
241  int n;
242  char buf[20];
243  va_list ap;
244
245  va_start(ap, fmt);
246  n = vsnprintf(buf, sizeof(buf), fmt, ap);
247  va_end(ap);
248  return n;
249}
250
251int main()
252{
253  return (mytest("Hello%d\n", 1));
254}
255EOF
256
257    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
258      echo "Checking for return value of vsnprintf()... Yes."
259    else
260      CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
261      echo "Checking for return value of vsnprintf()... No."
262      echo "  WARNING: apparently vsnprintf() does not return a value. zlib"
263      echo "  can build but will be open to possible string-format security"
264      echo "  vulnerabilities."
265    fi
266  else
267    CFLAGS="$CFLAGS -DNO_vsnprintf"
268    echo "Checking for vsnprintf() in stdio.h... No."
269    echo "  WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
270    echo "  can build but will be open to possible buffer-overflow security"
271    echo "  vulnerabilities."
272
273    cat >$test.c <<EOF
274#include <stdio.h>
275#include <stdarg.h>
276
277int mytest(char *fmt, ...)
278{
279  int n;
280  char buf[20];
281  va_list ap;
282
283  va_start(ap, fmt);
284  n = vsprintf(buf, fmt, ap);
285  va_end(ap);
286  return n;
287}
288
289int main()
290{
291  return (mytest("Hello%d\n", 1));
292}
293EOF
294
295    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
296      echo "Checking for return value of vsprintf()... Yes."
297    else
298      CFLAGS="$CFLAGS -DHAS_vsprintf_void"
299      echo "Checking for return value of vsprintf()... No."
300      echo "  WARNING: apparently vsprintf() does not return a value. zlib"
301      echo "  can build but will be open to possible string-format security"
302      echo "  vulnerabilities."
303    fi
304  fi
305else
306  echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()"
307
308  cat >$test.c <<EOF
309#include <stdio.h>
310
311int mytest()
312{
313  char buf[20];
314
315  snprintf(buf, sizeof(buf), "%s", "foo");
316  return 0;
317}
318
319int main()
320{
321  return (mytest());
322}
323EOF
324
325  if test "`($CC $CFLAGS -o $test $test.c) 2>&1`" = ""; then
326    echo "Checking for snprintf() in stdio.h... Yes."
327
328    cat >$test.c <<EOF
329#include <stdio.h>
330
331int mytest()
332{
333  char buf[20];
334
335  return snprintf(buf, sizeof(buf), "%s", "foo");
336}
337
338int main()
339{
340  return (mytest());
341}
342EOF
343
344    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
345      echo "Checking for return value of snprintf()... Yes."
346    else
347      CFLAGS="$CFLAGS -DHAS_snprintf_void"
348      echo "Checking for return value of snprintf()... No."
349      echo "  WARNING: apparently snprintf() does not return a value. zlib"
350      echo "  can build but will be open to possible string-format security"
351      echo "  vulnerabilities."
352    fi
353  else
354    CFLAGS="$CFLAGS -DNO_snprintf"
355    echo "Checking for snprintf() in stdio.h... No."
356    echo "  WARNING: snprintf() not found, falling back to sprintf(). zlib"
357    echo "  can build but will be open to possible buffer-overflow security"
358    echo "  vulnerabilities."
359
360    cat >$test.c <<EOF
361#include <stdio.h>
362
363int mytest()
364{
365  char buf[20];
366
367  return sprintf(buf, "%s", "foo");
368}
369
370int main()
371{
372  return (mytest());
373}
374EOF
375
376    if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
377      echo "Checking for return value of sprintf()... Yes."
378    else
379      CFLAGS="$CFLAGS -DHAS_sprintf_void"
380      echo "Checking for return value of sprintf()... No."
381      echo "  WARNING: apparently sprintf() does not return a value. zlib"
382      echo "  can build but will be open to possible string-format security"
383      echo "  vulnerabilities."
384    fi
385  fi
386fi
387
388cat >$test.c <<EOF
389#include <errno.h>
390int main() { return 0; }
391EOF
392if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
393  echo "Checking for errno.h... Yes."
394else
395  echo "Checking for errno.h... No."
396  CFLAGS="$CFLAGS -DNO_ERRNO_H"
397fi
398
399cat > $test.c <<EOF
400#include <sys/types.h>
401#include <sys/mman.h>
402#include <sys/stat.h>
403caddr_t hello() {
404  return mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0);
405}
406EOF
407if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
408  CFLAGS="$CFLAGS -DUSE_MMAP"
409  echo Checking for mmap support... Yes.
410else
411  echo Checking for mmap support... No.
412fi
413
414CPP=${CPP-"$CC -E"}
415case $CFLAGS in
416  *ASMV*)
417    if test "`nm $test.o | grep _hello`" = ""; then
418      CPP="$CPP -DNO_UNDERLINE"
419      echo Checking for underline in external names... No.
420    else
421      echo Checking for underline in external names... Yes.
422    fi;;
423esac
424
425rm -f $test.[co] $test $test$shared_ext
426
427# udpate Makefile
428sed < Makefile.in "
429/^CC *=/s#=.*#=$CC#
430/^CFLAGS *=/s#=.*#=$CFLAGS#
431/^CPP *=/s#=.*#=$CPP#
432/^LDSHARED *=/s#=.*#=$LDSHARED#
433/^LIBS *=/s#=.*#=$LIBS#
434/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
435/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
436/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
437/^AR *=/s#=.*#=$AR#
438/^RANLIB *=/s#=.*#=$RANLIB#
439/^EXE *=/s#=.*#=$EXE#
440/^prefix *=/s#=.*#=$prefix#
441/^exec_prefix *=/s#=.*#=$exec_prefix#
442/^libdir *=/s#=.*#=$libdir#
443/^includedir *=/s#=.*#=$includedir#
444/^mandir *=/s#=.*#=$mandir#
445/^LDFLAGS *=/s#=.*#=$LDFLAGS#
446" > Makefile
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