configure revision ada1678a4262b208a7b87391f520a7767d25287c
2N/A#!/bin/sh
2N/A# configure script for zlib. This script is needed only if
2N/A# you wish to build a shared library and your system supports them,
2N/A# of if you need special compiler, flags or install directory.
2N/A# Otherwise, you can just use directly "make test; make install"
2N/A#
2N/A# To create a shared library, use "configure --shared"; by default a static
2N/A# library is created. If the primitive shared library support provided here
2N/A# does not work, use ftp://prep.ai.mit.edu/pub/gnu/libtool-*.tar.gz
2N/A#
2N/A# To impose specific compiler or flags or install directory, use for example:
2N/A# prefix=$HOME CC=cc CFLAGS="-O4" ./configure
2N/A# or for csh/tcsh users:
2N/A# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
2N/A# LDSHARED is the command to be used to create a shared library
2N/A
2N/A# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
2N/A# If you have problems, try without defining CC and CFLAGS before reporting
2N/A# an error.
2N/A
2N/ALIBS=libz.a
2N/ASHAREDLIB=libz.so
2N/AVER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
2N/AAR=${AR-"ar rc"}
2N/ARANLIB=${RANLIB-"ranlib"}
2N/Aprefix=${prefix-/usr/local}
2N/Aexec_prefix=${exec_prefix-'${prefix}'}
2N/Alibdir=${libdir-'${exec_prefix}/lib'}
2N/Aincludedir=${includedir-'${prefix}/include'}
2N/Ashared_ext='.so'
2N/Ashared=0
2N/Agcc=0
2N/Aold_cc="$CC"
2N/Aold_cflags="$CFLAGS"
2N/A
2N/Awhile test $# -ge 1
2N/Ado
2N/Acase "$1" in
2N/A -h* | --h*)
2N/A echo 'usage:'
2N/A echo ' configure [--shared] [--prefix=PREFIX] [--exec_prefix=EXPREFIX]'
2N/A echo ' [--libdir=LIBDIR] [--includedir=INCLUDEDIR]'
2N/A exit 0;;
2N/A -p*=* | --p*=*) prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
2N/A -e*=* | --e*=*) exec_prefix=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
2N/A -l*=* | --libdir=*) libdir=`echo $1 | sed 's/[-a-z_]*=//'`; shift;;
2N/A -i*=* | --includedir=*) includedir=`echo $1 | sed 's/[-a-z_]*=//'`;shift;;
2N/A -p* | --p*) prefix="$2"; shift; shift;;
2N/A -e* | --e*) exec_prefix="$2"; shift; shift;;
2N/A -l* | --l*) libdir="$2"; shift; shift;;
2N/A -i* | --i*) includedir="$2"; shift; shift;;
2N/A -s* | --s*) shared=1; shift;;
2N/A esac
2N/Adone
2N/A
2N/Atest=ztest$$
2N/Acat > $test.c <<EOF
2N/Aextern int getchar();
2N/Aint hello() {return getchar();}
2N/AEOF
2N/A
2N/Atest -z "$CC" && echo Checking for gcc...
2N/Acc=${CC-gcc}
2N/Acflags=${CFLAGS-"-O3"}
2N/A# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
2N/Acase "$cc" in
2N/A *gcc*) gcc=1;;
2N/Aesac
2N/A
2N/Aif test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
2N/A CC="$cc"
2N/A SFLAGS=${CFLAGS-"-fPIC -O3"}
2N/A CFLAGS="$cflags"
2N/A case `(uname -s || echo unknown) 2>/dev/null` in
2N/A Linux | linux) LDSHARED=${LDSHARED-"gcc -shared -Wl,-soname,libz.so.1"};;
2N/A *) LDSHARED=${LDSHARED-"gcc -shared"};;
2N/A esac
2N/Aelse
2N/A # find system name and corresponding cc options
2N/A CC=${CC-cc}
2N/A case `(uname -sr || echo unknown) 2>/dev/null` in
2N/A HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
2N/A CFLAGS=${CFLAGS-"-O"}
2N/A# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
2N/A LDSHARED=${LDSHARED-"ld -b"}
2N/A shared_ext='.sl'
2N/A SHAREDLIB='libz.sl';;
2N/A IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
2N/A CFLAGS=${CFLAGS-"-ansi -O2"}
2N/A LDSHARED=${LDSHARED-"cc -shared"};;
2N/A OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
2N/A CFLAGS=${CFLAGS-"-O -std1"}
2N/A LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,$SHAREDLIB -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"};;
2N/A OSF1*) SFLAGS=${CFLAGS-"-O -std1"}
2N/A CFLAGS=${CFLAGS-"-O -std1"}
2N/A LDSHARED=${LDSHARED-"cc -shared"};;
2N/A QNX*) SFLAGS=${CFLAGS-"-4 -O"}
2N/A CFLAGS=${CFLAGS-"-4 -O"}
2N/A LDSHARED=${LDSHARED-"cc"}
2N/A RANLIB=${RANLIB-"true"}
2N/A AR="cc -A";;
2N/A SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
2N/A CFLAGS=${CFLAGS-"-O3"}
2N/A LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};;
2N/A SunOS\ 5*) SFLAGS=${CFLAGS-"-fast -xcg89 -KPIC -R."}
2N/A CFLAGS=${CFLAGS-"-fast -xcg89"}
2N/A LDSHARED=${LDSHARED-"cc -G"};;
2N/A SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
2N/A CFLAGS=${CFLAGS-"-O2"}
2N/A LDSHARED=${LDSHARED-"ld"};;
2N/A UNIX_System_V\ 4.2.0)
2N/A SFLAGS=${CFLAGS-"-KPIC -O"}
2N/A CFLAGS=${CFLAGS-"-O"}
2N/A LDSHARED=${LDSHARED-"cc -G"};;
2N/A UNIX_SV\ 4.2MP)
2N/A SFLAGS=${CFLAGS-"-Kconform_pic -O"}
2N/A CFLAGS=${CFLAGS-"-O"}
2N/A LDSHARED=${LDSHARED-"cc -G"};;
2N/A # send working options for other systems to support@gzip.org
2N/A *) SFLAGS=${CFLAGS-"-O"}
2N/A CFLAGS=${CFLAGS-"-O"}
2N/A LDSHARED=${LDSHARED-"cc -shared"};;
2N/A esac
2N/Afi
2N/A
2N/Aif test $shared -eq 1; then
2N/A echo Checking for shared library support...
2N/A # we must test in two steps (cc then ld), required at least on SunOS 4.x
2N/A if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" &&
2N/A test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then
2N/A CFLAGS="$SFLAGS"
2N/A LIBS="$SHAREDLIB.$VER"
2N/A echo Building shared library $SHAREDLIB.$VER with $CC.
2N/A elif test -z "$old_cc" -a -z "$old_cflags"; then
2N/A echo No shared library suppport.
2N/A shared=0;
2N/A else
2N/A echo 'No shared library suppport; try without defining CC and CFLAGS'
2N/A shared=0;
2N/A fi
2N/Afi
2N/Aif test $shared -eq 0; then
2N/A LDSHARED="$CC"
2N/A echo Building static library $LIBS version $VER with $CC.
2N/Afi
2N/A
2N/Acat > $test.c <<EOF
2N/A#include <unistd.h>
2N/Aint main() { return 0; }
2N/AEOF
2N/Aif test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
2N/A CFLAGS="$CFLAGS -DHAVE_UNISTD_H"
2N/A echo "Checking for unistd.h... Yes."
2N/Aelse
2N/A echo "Checking for unistd.h... No."
2N/Afi
2N/A
2N/Acat > $test.c <<EOF
2N/A#include <errno.h>
2N/Aint main() { return 0; }
2N/AEOF
2N/Aif test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
2N/A echo "Checking for errno.h... Yes."
2N/Aelse
2N/A echo "Checking for errno.h... No."
2N/A CFLAGS="$CFLAGS -DNO_ERRNO_H"
2N/Afi
2N/A
2N/Acat > $test.c <<EOF
2N/A#include <sys/types.h>
2N/A#include <sys/mman.h>
2N/A#include <sys/stat.h>
2N/Acaddr_t hello() {
2N/A return mmap((caddr_t)0, (off_t)0, PROT_READ, MAP_SHARED, 0, (off_t)0);
2N/A}
2N/AEOF
2N/Aif test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
2N/A CFLAGS="$CFLAGS -DUSE_MMAP"
2N/A echo Checking for mmap support... Yes.
2N/Aelse
2N/A echo Checking for mmap support... No.
2N/Afi
2N/A
2N/ACPP=${CPP-"$CC -E"}
2N/Acase $CFLAGS in
2N/A *ASMV*)
2N/A if test "`nm $test.o | grep _hello`" = ""; then
2N/A CPP="$CPP -DNO_UNDERLINE"
2N/A echo Checking for underline in external names... No.
2N/A else
2N/A echo Checking for underline in external names... Yes.
2N/A fi;;
2N/Aesac
2N/A
2N/Arm -f $test.[co] $test$shared_ext
2N/A
2N/A# udpate Makefile
2N/Ased < Makefile.in "
2N/A/^CC *=/s%=.*%=$CC%
2N/A/^CFLAGS *=/s%=.*%=$CFLAGS%
2N/A/^CPP *=/s%=.*%=$CPP%
2N/A/^LDSHARED *=/s%=.*%=$LDSHARED%
2N/A/^LIBS *=/s%=.*%=$LIBS%
2N/A/^SHAREDLIB *=/s%=.*%=$SHAREDLIB%
2N/A/^AR *=/s%=.*%=$AR%
2N/A/^RANLIB *=/s%=.*%=$RANLIB%
2N/A/^VER *=/s%=.*%=$VER%
2N/A/^prefix *=/s%=.*%=$prefix%
2N/A/^exec_prefix *=/s%=.*%=$exec_prefix%
2N/A/^libdir *=/s%=.*%=$libdir%
2N/A/^includedir *=/s%=.*%=$includedir%
2N/A" > Makefile
2N/A