Commit | Line | Data |
---|---|---|
c801d85f KB |
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 | ||
21 | LIBS=libz.a | |
22 | SHAREDLIB=libz.so | |
23 | VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` | |
24 | AR=${AR-"ar rc"} | |
25 | RANLIB=${RANLIB-"ranlib"} | |
26 | prefix=${prefix-/usr/local} | |
27 | shared_ext='.so' | |
28 | shared=0 | |
29 | gcc=0 | |
30 | old_cc="$CC" | |
31 | old_cflags="$CFLAGS" | |
32 | ||
33 | case "$1" in | |
34 | -h* | --h*) echo 'syntax: configure [ --shared ] [--prefix PREFIX]'; exit 0;; | |
35 | -p*=* | --p*=*) prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;; | |
36 | -p* | --p*) prefix="$2"; shift; shift;; | |
37 | -s* | --s*) shared=1; shift;; | |
38 | esac | |
39 | ||
40 | test=ztest$$ | |
41 | cat > $test.c <<EOF | |
42 | extern int getchar(); | |
43 | int hello() {return getchar();} | |
44 | EOF | |
45 | ||
46 | test -z "$CC" && echo Checking for gcc... | |
47 | cc=${CC-gcc} | |
48 | cflags=${CFLAGS-"-O3"} | |
49 | case "$cc" in | |
50 | *gcc*) gcc=1;; | |
51 | esac | |
52 | ||
53 | if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then | |
54 | CC="$cc" | |
55 | SFLAGS=${CFLAGS-"-fPIC -O3"} | |
56 | CFLAGS="$cflags" | |
57 | case `(uname -s || echo unknown) 2>/dev/null` in | |
58 | Linux | linux) LDSHARED=${LDSHARED-"gcc -shared -Wl,-soname,libz.so.1"};; | |
59 | *) LDSHARED=${LDSHARED-"gcc -shared"};; | |
60 | esac | |
61 | else | |
62 | # find system name and corresponding cc options | |
63 | CC=${CC-cc} | |
64 | case `(uname -sr || echo unknown) 2>/dev/null` in | |
65 | HP-UX*) SFLAGS=${CFLAGS-"-O +z"} | |
66 | CFLAGS=${CFLAGS-"-O"} | |
67 | # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} | |
68 | LDSHARED=${LDSHARED-"ld -b"} | |
69 | shared_ext='.sl' | |
70 | SHAREDLIB='libz.sl';; | |
71 | IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} | |
72 | CFLAGS=${CFLAGS-"-ansi -O2"} | |
73 | LDSHARED=${LDSHARED-"cc -shared"};; | |
74 | OSF1) SFLAGS=${CFLAGS-"-O -std1"} | |
75 | CFLAGS=${CFLAGS-"-O -std1"} | |
76 | LDSHARED=${LDSHARED-"cc -shared"};; | |
77 | QNX*) SFLAGS=${CFLAGS-"-4 -O"} | |
78 | CFLAGS=${CFLAGS-"-4 -O"} | |
79 | LDSHARED=${LDSHARED-"cc"} | |
80 | RANLIB=${RANLIB-"true"} | |
81 | AR="cc -A";; | |
82 | SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} | |
83 | CFLAGS=${CFLAGS-"-O3"} | |
84 | LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};; | |
85 | SunOS\ 5*) SFLAGS=${CFLAGS-"-fast -xcg89 -KPIC -R."} | |
86 | CFLAGS=${CFLAGS-"-fast -xcg89"} | |
87 | LDSHARED=${LDSHARED-"cc -G"};; | |
88 | SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} | |
89 | CFLAGS=${CFLAGS-"-O2"} | |
90 | LDSHARED=${LDSHARED-"ld"};; | |
91 | UNIX_System_V\ 4.2.0) | |
92 | SFLAGS=${CFLAGS-"-KPIC -O"} | |
93 | CFLAGS=${CFLAGS-"-O"} | |
94 | LDSHARED=${LDSHARED-"cc -G"};; | |
95 | UNIX_SV\ 4.2MP) | |
96 | SFLAGS=${CFLAGS-"-Kconform_pic -O"} | |
97 | CFLAGS=${CFLAGS-"-O"} | |
98 | LDSHARED=${LDSHARED-"cc -G"};; | |
99 | # send working options for other systems to support@gzip.org | |
100 | *) SFLAGS=${CFLAGS-"-O"} | |
101 | CFLAGS=${CFLAGS-"-O"} | |
102 | LDSHARED=${LDSHARED-"cc -shared"};; | |
103 | esac | |
104 | fi | |
105 | ||
106 | if test $shared -eq 1; then | |
107 | echo Checking for shared library support... | |
108 | # we must test in two steps (cc then ld), required at least on SunOS 4.x | |
109 | if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" && | |
110 | test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then | |
111 | CFLAGS="$SFLAGS" | |
112 | LIBS="$SHAREDLIB.$VER" | |
113 | echo Building shared library $SHAREDLIB.$VER with $CC. | |
114 | elif test -z "$old_cc" -a -z "$old_cflags"; then | |
115 | echo No shared library suppport. | |
116 | shared=0; | |
117 | else | |
118 | echo 'No shared library suppport; try without defining CC and CFLAGS' | |
119 | shared=0; | |
120 | fi | |
121 | fi | |
122 | if test $shared -eq 0; then | |
123 | LDSHARED="$CC" | |
124 | echo Building static library $LIBS version $VER with $CC. | |
125 | fi | |
126 | ||
127 | if test -f /usr/include/unistd.h; then | |
128 | CFLAGS="$CFLAGS -DHAVE_UNISTD_H" | |
129 | fi | |
130 | ||
131 | if test ! -f /usr/include/errno.h; then | |
132 | CFLAGS="$CFLAGS -DNO_ERRNO_H" | |
133 | fi | |
134 | ||
135 | cat > $test.c <<EOF | |
136 | #include <sys/types.h> | |
137 | #include <sys/mman.h> | |
138 | #include <sys/stat.h> | |
139 | caddr_t hello() { | |
140 | return mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0); | |
141 | } | |
142 | EOF | |
143 | if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then | |
144 | CFLAGS="$CFLAGS -DUSE_MMAP" | |
145 | echo Checking for mmap support... Yes. | |
146 | else | |
147 | echo Checking for mmap support... No. | |
148 | fi | |
149 | ||
150 | rm -f $test.[co] $test$shared_ext | |
151 | ||
152 | # udpate Makefile | |
153 | sed < Makefile.in " | |
154 | /^CC *=/s%=.*%=$CC% | |
155 | /^CFLAGS *=/s%=.*%=$CFLAGS% | |
156 | /^LDSHARED *=/s%=.*%=$LDSHARED% | |
157 | /^LIBS *=/s%=.*%=$LIBS% | |
158 | /^SHAREDLIB *=/s%=.*%=$SHAREDLIB% | |
159 | /^AR *=/s%=.*%=$AR% | |
160 | /^RANLIB *=/s%=.*%=$RANLIB% | |
161 | /^VER *=/s%=.*%=$VER% | |
162 | /^prefix *=/s%=.*%=$prefix% | |
163 | " > Makefile |