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121 lines
3.8 KiB
121 lines
3.8 KiB
#!/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 create a shared library, use "configure --shared"; by default a static |
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# library is created. If the primitive shared library support provided here |
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# does not work, use ftp://prep.ai.mit.edu/pub/gnu/libtool-*.tar.gz |
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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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SHAREDLIB=libz.so |
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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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shared_ext='.so' |
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shared=0 |
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case "$1" in |
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-s* | --s*) shared=1; shift;; |
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-h* | --h*) echo 'syntax: configure [ --shared ]'; exit 0;; |
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esac |
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test -z "$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" -o "$CC" = "gcc" && (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=${CFLAGS-"-O3"} |
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case `(uname -s || echo unknown) 2>/dev/null` in |
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Linux | linux) LDSHARED=${LDSHARED-"gcc -shared -Wl,-soname,libz.so.1"};; |
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*) LDSHARED=${LDSHARED-"gcc -shared"};; |
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esac |
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else |
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# find system name and corresponding cc options |
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CC=${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=${LDSHARED-"ld -b +vnocompatwarnings"} |
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shared_ext='.sl' |
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SHAREDLIB='libz.sl';; |
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UNIX_System_V\ 4.2.0) |
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SFLAGS=${CFLAGS-"-KPIC -O"} |
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CFLAGS=${CFLAGS-"-O"} |
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LDSHARED=${LDSHARED-"cc -G"};; |
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# send working options for other systems to support@gzip.org |
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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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if test $shared -eq 1; then |
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echo Checking for shared library support... |
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# we must test in two steps (cc then ld), required at least on SunOS 4.x |
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if test "`($CC -c $SFLAGS $test.c) 2>&1`" = "" && |
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test "`($LDSHARED -o $test$shared_ext $test.o) 2>&1`" = ""; then |
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CFLAGS="$SFLAGS" |
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LIBS="$SHAREDLIB.$VER" |
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echo Building shared library $SHAREDLIB.$VER with $CC. |
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else |
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echo No shared library suppport. |
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shared=0; |
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fi |
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fi |
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if test $shared -eq 0; then |
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LDSHARED="$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] $test$shared_ext |
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if test -f /usr/include/unistd.h; then |
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CFLAGS="$CFLAGS -DHAVE_UNISTD_H" |
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fi |
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if test ! -f /usr/include/errno.h; then |
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CFLAGS="$CFLAGS -DNO_ERRNO_H" |
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fi |
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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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/^SHAREDLIB *=/s,=.*,=$SHAREDLIB, |
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/^AR *=/s,=.*,=$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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