87 lines
2.8 KiB
Plaintext
87 lines
2.8 KiB
Plaintext
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#!/bin/sh
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# configure script for zlib. This script is needed only if
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# you wish to build a shared library and your system supports them,
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# of if you need special compiler, flags or install directory.
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# Otherwise, you can just use directly "make test; make install"
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#
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# To impose specific compiler or flags or install directory, use for example:
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# prefix=$HOME CC=cc CFLAGS="-O4" ./configure
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# or for csh/tcsh users:
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# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
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# LDSHARED is the command to be used to create a shared library
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LIBS=libz.a
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VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`
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AR=${AR-"ar rc"}
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RANLIB=${RANLIB-"ranlib"}
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prefix=${prefix-/usr/local}
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exec_prefix=${exec_prefix-$prefix}
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test -z "$CC" && echo Checking for gcc...
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test=ztest$$
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cat > $test.c <<EOF
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int hello() { printf("hello\n"); }
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EOF
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if test -z "$CC" && (gcc -c -O3 $test.c) 2>/dev/null; then
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CC=gcc
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SFLAGS=${CFLAGS-"-fPIC -O3"}
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CFLAGS=${CFLAGS-"-O3"}
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LDSHARED=${LDSHARED-"gcc -shared"}
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else
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# find system name and corresponding cc options
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CC=${CC-cc}
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case `(uname -sr || echo unknown) 2>/dev/null` in
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SunOS\ 5*) SFLAGS=${CFLAGS-"-fast -xcg89 -KPIC -R."}
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CFLAGS=${CFLAGS-"-fast -xcg89"}
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LDSHARED=${LDSHARED-"cc -G"};;
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SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
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CFLAGS=${CFLAGS-"-O2"}
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LDSHARED=${LDSHARED-"ld"};;
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IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
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CFLAGS=${CFLAGS-"-ansi -O2"}
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LDSHARED=${LDSHARED-"cc -shared"};;
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QNX*) SFLAGS=${CFLAGS-"-4 -O"}
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CFLAGS=${CFLAGS-"-4 -O"}
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LDSHARED=${LDSHARED-"cc"}
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RANLIB=${RANLIB-"true"}
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AR="cc -A";;
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SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
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CFLAGS=${CFLAGS-"-O3"}
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LDSHARED=${LDSHARED-"cc -dy -KPIC -G"};;
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HP-UX*) SFLAGS=${CFLAGS-"-O +z"}
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CFLAGS=${CFLAGS-"-O"}
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LDSHARED=${LDSHARED-"ld -b"}
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SHAREDLIBS='libz.sl';;
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# send working options for other systems to gzip@prep.ai.mit.edu
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*) SFLAGS=${CFLAGS-"-O"}
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CFLAGS=${CFLAGS-"-O"}
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LDSHARED=${LDSHARED-"cc -shared"};;
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esac
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fi
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echo Checking for shared library support...
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# we must test in two steps (cc then ld), required at least on SunOS 4.x
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if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" &&
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test "`($LDSHARED -o $test.so $test.o) 2>&1`" = ""; then
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CFLAGS="$SFLAGS"
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LIBS='libz.so.$(VER)'
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echo Building shared library libz.so.$VER with $CC.
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else
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LDSHARED="$CC"
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echo Building static library $LIBS version $VER with $CC.
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fi
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rm -f $test.[co] $test.so
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# udpate Makefile
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sed < Makefile.in "
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/^CC *=/s/=.*/=$CC/
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/^CFLAGS *=/s/=.*/=$CFLAGS/
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/^LDSHARED *=/s/=.*/=$LDSHARED/
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/^LIBS *=/s,=.*,=$LIBS,
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/^AR *=/s/=.*/=$AR/
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/^RANLIB *=/s,=.*,=$RANLIB,
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/^VER *=/s/=.*/=$VER/
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/^prefix *=/s,=.*,=$prefix,
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/^exec_prefix *=/s,=.*,=$exec_prefix,
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" > Makefile
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