| #!/bin/sh |
| # configure script for zlib. |
| # |
| # Normally configure builds both a static and a shared library. |
| # If you want to build just a static library, use: ./configure --static |
| # |
| # To impose specific compiler or flags or install directory, use for example: |
| # prefix=$HOME CC=cc CFLAGS="-O4" ./configure |
| # or for csh/tcsh users: |
| # (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure) |
| |
| # Incorrect settings of CC or CFLAGS may prevent creating a shared library. |
| # If you have problems, try without defining CC and CFLAGS before reporting |
| # an error. |
| |
| # start off configure.log |
| echo -------------------- >> configure.log |
| echo $0 $* >> configure.log |
| date >> configure.log |
| |
| # set command prefix for cross-compilation |
| if [ -n "${CHOST}" ]; then |
| uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`" |
| CROSS_PREFIX="${CHOST}-" |
| fi |
| |
| # destination name for static library |
| STATICLIB=libz.a |
| |
| # extract zlib version numbers from zlib.h |
| VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` |
| VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` |
| VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` |
| VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` |
| |
| # establish commands for library building |
| if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
| AR=${AR-"${CROSS_PREFIX}ar"} |
| test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
| else |
| AR=${AR-"ar"} |
| test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log |
| fi |
| ARFLAGS=${ARFLAGS-"rc"} |
| if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
| RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} |
| test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log |
| else |
| RANLIB=${RANLIB-"ranlib"} |
| fi |
| if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then |
| NM=${NM-"${CROSS_PREFIX}nm"} |
| test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log |
| else |
| NM=${NM-"nm"} |
| fi |
| |
| # set defaults before processing command line options |
| LDCONFIG=${LDCONFIG-"ldconfig"} |
| LDSHAREDLIBC="${LDSHAREDLIBC--lc}" |
| ARCHS= |
| prefix=${prefix-/usr/local} |
| exec_prefix=${exec_prefix-'${prefix}'} |
| libdir=${libdir-'${exec_prefix}/lib'} |
| sharedlibdir=${sharedlibdir-'${libdir}'} |
| includedir=${includedir-'${prefix}/include'} |
| mandir=${mandir-'${prefix}/share/man'} |
| shared_ext='.so' |
| shared=1 |
| solo=0 |
| cover=0 |
| zprefix=0 |
| build64=0 |
| gcc=0 |
| old_cc="$CC" |
| old_cflags="$CFLAGS" |
| OBJC='$(OBJZ) $(OBJG)' |
| PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)' |
| |
| # process command line options |
| while test $# -ge 1 |
| do |
| case "$1" in |
| -h* | --help) |
| echo 'usage:' | tee -a configure.log |
| echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log |
| echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log |
| echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log |
| exit 0 ;; |
| -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;; |
| -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;; |
| -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;; |
| --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;; |
| -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;; |
| -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;; |
| -p* | --prefix) prefix="$2"; shift; shift ;; |
| -e* | --eprefix) exec_prefix="$2"; shift; shift ;; |
| -l* | --libdir) libdir="$2"; shift; shift ;; |
| -i* | --includedir) includedir="$2"; shift; shift ;; |
| -s* | --shared | --enable-shared) shared=1; shift ;; |
| -t | --static) shared=0; shift ;; |
| --solo) solo=1; shift ;; |
| --cover) cover=1; shift ;; |
| -z* | --zprefix) zprefix=1; shift ;; |
| -6* | --64) build64=1; shift ;; |
| -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;; |
| --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;; |
| --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;; |
| *) echo "unknown option: $1"; echo "$0 --help for help" | tee -a configure.log; exit 1 ;; |
| esac |
| done |
| |
| # define functions for testing compiler and library characteristics and logging the results |
| test=ztest$$ |
| |
| show() |
| { |
| case "$*" in |
| *$test.c*) |
| echo === $test.c === >> configure.log |
| cat $test.c >> configure.log |
| echo === >> configure.log;; |
| esac |
| echo $* >> configure.log |
| } |
| |
| cat > $test.c <<EOF |
| #error error |
| EOF |
| if ($CC -c $CFLAGS $test.c) 2>/dev/null; then |
| try() |
| { |
| show $* |
| test "`( $* ) 2>&1 | tee -a configure.log`" = "" |
| } |
| echo - using any output from compiler to indicate an error >> configure.log |
| else |
| try() |
| { |
| show $* |
| ( $* ) >> configure.log 2>&1 |
| ret=$? |
| if test $ret -ne 0; then |
| echo "(exit code "$ret")" >> configure.log |
| fi |
| return $ret |
| } |
| fi |
| |
| tryboth() |
| { |
| show $* |
| got=`( $* ) 2>&1` |
| ret=$? |
| printf %s "$got" >> configure.log |
| if test $ret -ne 0; then |
| return $ret |
| fi |
| test "$got" = "" |
| } |
| |
| echo >> configure.log |
| |
| # check for gcc vs. cc and set compile and link flags based on the system identified by uname |
| cat > $test.c <<EOF |
| extern int getchar(); |
| int hello() {return getchar();} |
| EOF |
| |
| test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log |
| cc=${CC-${CROSS_PREFIX}gcc} |
| cflags=${CFLAGS-"-O3"} |
| # to force the asm version use: CFLAGS="-O3 -DASMV" ./configure |
| case "$cc" in |
| *gcc*) gcc=1 ;; |
| *clang*) gcc=1 ;; |
| esac |
| case `$cc -v 2>&1` in |
| *gcc*) gcc=1 ;; |
| esac |
| |
| show $cc -c $cflags $test.c |
| if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then |
| echo ... using gcc >> configure.log |
| CC="$cc" |
| CFLAGS="${CFLAGS--O3} ${ARCHS}" |
| SFLAGS="${CFLAGS--O3} -fPIC" |
| LDFLAGS="${LDFLAGS} ${ARCHS}" |
| if test $build64 -eq 1; then |
| CFLAGS="${CFLAGS} -m64" |
| SFLAGS="${SFLAGS} -m64" |
| fi |
| if test "${ZLIBGCCWARN}" = "YES"; then |
| CFLAGS="${CFLAGS} -Wall -Wextra -pedantic" |
| fi |
| if test -z "$uname"; then |
| uname=`(uname -s || echo unknown) 2>/dev/null` |
| fi |
| case "$uname" in |
| Linux* | linux* | GNU | GNU/* | solaris*) |
| LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;; |
| *BSD | *bsd* | DragonFly) |
| LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} |
| LDCONFIG="ldconfig -m" ;; |
| CYGWIN* | Cygwin* | cygwin* | OS/2*) |
| EXE='.exe' ;; |
| MINGW* | mingw*) |
| # temporary bypass |
| rm -f $test.[co] $test $test$shared_ext |
| echo "Please use win32/Makefile.gcc instead." | tee -a configure.log |
| exit 1 |
| LDSHARED=${LDSHARED-"$cc -shared"} |
| LDSHAREDLIBC="" |
| EXE='.exe' ;; |
| QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4 |
| # (alain.bonnefoy@icbt.com) |
| LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;; |
| HP-UX*) |
| LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} |
| case `(uname -m || echo unknown) 2>/dev/null` in |
| ia64) |
| shared_ext='.so' |
| SHAREDLIB='libz.so' ;; |
| *) |
| shared_ext='.sl' |
| SHAREDLIB='libz.sl' ;; |
| esac ;; |
| Darwin* | darwin*) |
| shared_ext='.dylib' |
| SHAREDLIB=libz$shared_ext |
| SHAREDLIBV=libz.$VER$shared_ext |
| SHAREDLIBM=libz.$VER1$shared_ext |
| LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} |
| AR="/usr/bin/libtool" |
| ARFLAGS="-o" ;; |
| *) LDSHARED=${LDSHARED-"$cc -shared"} ;; |
| esac |
| else |
| # find system name and corresponding cc options |
| CC=${CC-cc} |
| gcc=0 |
| echo ... using $CC >> configure.log |
| if test -z "$uname"; then |
| uname=`(uname -sr || echo unknown) 2>/dev/null` |
| fi |
| case "$uname" in |
| HP-UX*) SFLAGS=${CFLAGS-"-O +z"} |
| CFLAGS=${CFLAGS-"-O"} |
| # LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} |
| LDSHARED=${LDSHARED-"ld -b"} |
| case `(uname -m || echo unknown) 2>/dev/null` in |
| ia64) |
| shared_ext='.so' |
| SHAREDLIB='libz.so' ;; |
| *) |
| shared_ext='.sl' |
| SHAREDLIB='libz.sl' ;; |
| esac ;; |
| IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} |
| CFLAGS=${CFLAGS-"-ansi -O2"} |
| LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
| OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} |
| CFLAGS=${CFLAGS-"-O -std1"} |
| LDFLAGS="${LDFLAGS} -Wl,-rpath,." |
| LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; |
| OSF1*) SFLAGS=${CFLAGS-"-O -std1"} |
| CFLAGS=${CFLAGS-"-O -std1"} |
| LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; |
| QNX*) SFLAGS=${CFLAGS-"-4 -O"} |
| CFLAGS=${CFLAGS-"-4 -O"} |
| LDSHARED=${LDSHARED-"cc"} |
| RANLIB=${RANLIB-"true"} |
| AR="cc" |
| ARFLAGS="-A" ;; |
| SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} |
| CFLAGS=${CFLAGS-"-O3"} |
| LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; |
| SunOS\ 5* | solaris*) |
| LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"} |
| SFLAGS=${CFLAGS-"-fast -KPIC"} |
| CFLAGS=${CFLAGS-"-fast"} |
| if test $build64 -eq 1; then |
| # old versions of SunPRO/Workshop/Studio don't support -m64, |
| # but newer ones do. Check for it. |
| flag64=`$CC -flags | egrep -- '^-m64'` |
| if test x"$flag64" != x"" ; then |
| CFLAGS="${CFLAGS} -m64" |
| SFLAGS="${SFLAGS} -m64" |
| else |
| case `(uname -m || echo unknown) 2>/dev/null` in |
| i86*) |
| SFLAGS="$SFLAGS -xarch=amd64" |
| CFLAGS="$CFLAGS -xarch=amd64" ;; |
| *) |
| SFLAGS="$SFLAGS -xarch=v9" |
| CFLAGS="$CFLAGS -xarch=v9" ;; |
| esac |
| fi |
| fi |
| ;; |
| SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} |
| CFLAGS=${CFLAGS-"-O2"} |
| LDSHARED=${LDSHARED-"ld"} ;; |
| SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} |
| CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} |
| LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; |
| UNIX_System_V\ 4.2.0) |
| SFLAGS=${CFLAGS-"-KPIC -O"} |
| CFLAGS=${CFLAGS-"-O"} |
| LDSHARED=${LDSHARED-"cc -G"} ;; |
| UNIX_SV\ 4.2MP) |
| SFLAGS=${CFLAGS-"-Kconform_pic -O"} |
| CFLAGS=${CFLAGS-"-O"} |
| LDSHARED=${LDSHARED-"cc -G"} ;; |
| OpenUNIX\ 5) |
| SFLAGS=${CFLAGS-"-KPIC -O"} |
| CFLAGS=${CFLAGS-"-O"} |
| LDSHARED=${LDSHARED-"cc -G"} ;; |
| AIX*) # Courtesy of dbakker@arrayasolutions.com |
| SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
| CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} |
| LDSHARED=${LDSHARED-"xlc -G"} ;; |
| # send working options for other systems to zlib@gzip.org |
| *) SFLAGS=${CFLAGS-"-O"} |
| CFLAGS=${CFLAGS-"-O"} |
| LDSHARED=${LDSHARED-"cc -shared"} ;; |
| esac |
| fi |
| |
| # destination names for shared library if not defined above |
| SHAREDLIB=${SHAREDLIB-"libz$shared_ext"} |
| SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"} |
| SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"} |
| |
| echo >> configure.log |
| |
| # see if shared library build supported |
| if test $shared -eq 1; then |
| echo Checking for shared library support... | tee -a configure.log |
| # we must test in two steps (cc then ld), required at least on SunOS 4.x |
| if try $CC -w -c $SFLAGS $test.c && |
| try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then |
| echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log |
| elif test -z "$old_cc" -a -z "$old_cflags"; then |
| echo No shared library support. | tee -a configure.log |
| shared=0; |
| else |
| echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log |
| shared=0; |
| fi |
| fi |
| if test $shared -eq 0; then |
| LDSHARED="$CC" |
| ALL="static" |
| TEST="all teststatic" |
| SHAREDLIB="" |
| SHAREDLIBV="" |
| SHAREDLIBM="" |
| echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log |
| else |
| ALL="static shared" |
| TEST="all teststatic testshared" |
| fi |
| |
| echo >> configure.log |
| |
| # check for underscores in external names for use by assembler code |
| CPP=${CPP-"$CC -E"} |
| case $CFLAGS in |
| *ASMV*) |
| echo >> configure.log |
| show "$NM $test.o | grep _hello" |
| if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then |
| CPP="$CPP -DNO_UNDERLINE" |
| echo Checking for underline in external names... No. | tee -a configure.log |
| else |
| echo Checking for underline in external names... Yes. | tee -a configure.log |
| fi ;; |
| esac |
| |
| echo >> configure.log |
| |
| # check for large file support, and if none, check for fseeko() |
| cat > $test.c <<EOF |
| #include <sys/types.h> |
| off64_t dummy = 0; |
| EOF |
| if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then |
| CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" |
| SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" |
| ALL="${ALL} all64" |
| TEST="${TEST} test64" |
| echo "Checking for off64_t... Yes." | tee -a configure.log |
| echo "Checking for fseeko... Yes." | tee -a configure.log |
| else |
| echo "Checking for off64_t... No." | tee -a configure.log |
| echo >> configure.log |
| cat > $test.c <<EOF |
| #include <stdio.h> |
| int main(void) { |
| fseeko(NULL, 0, 0); |
| return 0; |
| } |
| EOF |
| if try $CC $CFLAGS -o $test $test.c; then |
| echo "Checking for fseeko... Yes." | tee -a configure.log |
| else |
| CFLAGS="${CFLAGS} -DNO_FSEEKO" |
| SFLAGS="${SFLAGS} -DNO_FSEEKO" |
| echo "Checking for fseeko... No." | tee -a configure.log |
| fi |
| fi |
| |
| echo >> configure.log |
| |
| # check for strerror() for use by gz* functions |
| cat > $test.c <<EOF |
| #include <string.h> |
| #include <errno.h> |
| int main() { return strlen(strerror(errno)); } |
| EOF |
| if try $CC $CFLAGS -o $test $test.c; then |
| echo "Checking for strerror... Yes." | tee -a configure.log |
| else |
| CFLAGS="${CFLAGS} -DNO_STRERROR" |
| SFLAGS="${SFLAGS} -DNO_STRERROR" |
| echo "Checking for strerror... No." | tee -a configure.log |
| fi |
| |
| # copy clean zconf.h for subsequent edits |
| cp -p zconf.h.in zconf.h |
| |
| echo >> configure.log |
| |
| # check for unistd.h and save result in zconf.h |
| cat > $test.c <<EOF |
| #include <unistd.h> |
| int main() { return 0; } |
| EOF |
| if try $CC -c $CFLAGS $test.c; then |
| sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
| mv zconf.temp.h zconf.h |
| echo "Checking for unistd.h... Yes." | tee -a configure.log |
| else |
| echo "Checking for unistd.h... No." | tee -a configure.log |
| fi |
| |
| echo >> configure.log |
| |
| # check for stdarg.h and save result in zconf.h |
| cat > $test.c <<EOF |
| #include <stdarg.h> |
| int main() { return 0; } |
| EOF |
| if try $CC -c $CFLAGS $test.c; then |
| sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h |
| mv zconf.temp.h zconf.h |
| echo "Checking for stdarg.h... Yes." | tee -a configure.log |
| else |
| echo "Checking for stdarg.h... No." | tee -a configure.log |
| fi |
| |
| # if the z_ prefix was requested, save that in zconf.h |
| if test $zprefix -eq 1; then |
| sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h |
| mv zconf.temp.h zconf.h |
| echo >> configure.log |
| echo "Using z_ prefix on all symbols." | tee -a configure.log |
| fi |
| |
| # if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists |
| if test $solo -eq 1; then |
| sed '/#define ZCONF_H/a\ |
| #define Z_SOLO |
| |
| ' < zconf.h > zconf.temp.h |
| mv zconf.temp.h zconf.h |
| OBJC='$(OBJZ)' |
| PIC_OBJC='$(PIC_OBJZ)' |
| fi |
| |
| # if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X |
| if test $cover -eq 1; then |
| CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage" |
| if test -n "$GCC_CLASSIC"; then |
| CC=$GCC_CLASSIC |
| fi |
| fi |
| |
| echo >> configure.log |
| |
| # conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions |
| # (using stdarg or not), with or without "n" (proving size of buffer), and with or without a |
| # return value. The most secure result is vsnprintf() with a return value. snprintf() with a |
| # return value is secure as well, but then gzprintf() will be limited to 20 arguments. |
| cat > $test.c <<EOF |
| #include <stdio.h> |
| #include <stdarg.h> |
| #include "zconf.h" |
| int main() |
| { |
| #ifndef STDC |
| choke me |
| #endif |
| return 0; |
| } |
| EOF |
| if try $CC -c $CFLAGS $test.c; then |
| echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log |
| |
| echo >> configure.log |
| cat > $test.c <<EOF |
| #include <stdio.h> |
| #include <stdarg.h> |
| int mytest(const char *fmt, ...) |
| { |
| char buf[20]; |
| va_list ap; |
| va_start(ap, fmt); |
| vsnprintf(buf, sizeof(buf), fmt, ap); |
| va_end(ap); |
| return 0; |
| } |
| int main() |
| { |
| return (mytest("Hello%d\n", 1)); |
| } |
| EOF |
| if try $CC $CFLAGS -o $test $test.c; then |
| echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log |
| |
| echo >> configure.log |
| cat >$test.c <<EOF |
| #include <stdio.h> |
| #include <stdarg.h> |
| int mytest(const char *fmt, ...) |
| { |
| int n; |
| char buf[20]; |
| va_list ap; |
| va_start(ap, fmt); |
| n = vsnprintf(buf, sizeof(buf), fmt, ap); |
| va_end(ap); |
| return n; |
| } |
| int main() |
| { |
| return (mytest("Hello%d\n", 1)); |
| } |
| EOF |
| |
| if try $CC -c $CFLAGS $test.c; then |
| echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log |
| else |
| CFLAGS="$CFLAGS -DHAS_vsnprintf_void" |
| SFLAGS="$SFLAGS -DHAS_vsnprintf_void" |
| echo "Checking for return value of vsnprintf()... No." | tee -a configure.log |
| echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log |
| echo " can build but will be open to possible string-format security" | tee -a configure.log |
| echo " vulnerabilities." | tee -a configure.log |
| fi |
| else |
| CFLAGS="$CFLAGS -DNO_vsnprintf" |
| SFLAGS="$SFLAGS -DNO_vsnprintf" |
| echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log |
| echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log |
| echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
| echo " vulnerabilities." | tee -a configure.log |
| |
| echo >> configure.log |
| cat >$test.c <<EOF |
| #include <stdio.h> |
| #include <stdarg.h> |
| int mytest(const char *fmt, ...) |
| { |
| int n; |
| char buf[20]; |
| va_list ap; |
| va_start(ap, fmt); |
| n = vsprintf(buf, fmt, ap); |
| va_end(ap); |
| return n; |
| } |
| int main() |
| { |
| return (mytest("Hello%d\n", 1)); |
| } |
| EOF |
| |
| if try $CC -c $CFLAGS $test.c; then |
| echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log |
| else |
| CFLAGS="$CFLAGS -DHAS_vsprintf_void" |
| SFLAGS="$SFLAGS -DHAS_vsprintf_void" |
| echo "Checking for return value of vsprintf()... No." | tee -a configure.log |
| echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log |
| echo " can build but will be open to possible string-format security" | tee -a configure.log |
| echo " vulnerabilities." | tee -a configure.log |
| fi |
| fi |
| else |
| echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log |
| |
| echo >> configure.log |
| cat >$test.c <<EOF |
| #include <stdio.h> |
| int mytest() |
| { |
| char buf[20]; |
| snprintf(buf, sizeof(buf), "%s", "foo"); |
| return 0; |
| } |
| int main() |
| { |
| return (mytest()); |
| } |
| EOF |
| |
| if try $CC $CFLAGS -o $test $test.c; then |
| echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log |
| |
| echo >> configure.log |
| cat >$test.c <<EOF |
| #include <stdio.h> |
| int mytest() |
| { |
| char buf[20]; |
| return snprintf(buf, sizeof(buf), "%s", "foo"); |
| } |
| int main() |
| { |
| return (mytest()); |
| } |
| EOF |
| |
| if try $CC -c $CFLAGS $test.c; then |
| echo "Checking for return value of snprintf()... Yes." | tee -a configure.log |
| else |
| CFLAGS="$CFLAGS -DHAS_snprintf_void" |
| SFLAGS="$SFLAGS -DHAS_snprintf_void" |
| echo "Checking for return value of snprintf()... No." | tee -a configure.log |
| echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log |
| echo " can build but will be open to possible string-format security" | tee -a configure.log |
| echo " vulnerabilities." | tee -a configure.log |
| fi |
| else |
| CFLAGS="$CFLAGS -DNO_snprintf" |
| SFLAGS="$SFLAGS -DNO_snprintf" |
| echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log |
| echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log |
| echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log |
| echo " vulnerabilities." | tee -a configure.log |
| |
| echo >> configure.log |
| cat >$test.c <<EOF |
| #include <stdio.h> |
| int mytest() |
| { |
| char buf[20]; |
| return sprintf(buf, "%s", "foo"); |
| } |
| int main() |
| { |
| return (mytest()); |
| } |
| EOF |
| |
| if try $CC -c $CFLAGS $test.c; then |
| echo "Checking for return value of sprintf()... Yes." | tee -a configure.log |
| else |
| CFLAGS="$CFLAGS -DHAS_sprintf_void" |
| SFLAGS="$SFLAGS -DHAS_sprintf_void" |
| echo "Checking for return value of sprintf()... No." | tee -a configure.log |
| echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log |
| echo " can build but will be open to possible string-format security" | tee -a configure.log |
| echo " vulnerabilities." | tee -a configure.log |
| fi |
| fi |
| fi |
| |
| # see if we can hide zlib internal symbols that are linked between separate source files |
| if test "$gcc" -eq 1; then |
| echo >> configure.log |
| cat > $test.c <<EOF |
| #define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) |
| int ZLIB_INTERNAL foo; |
| int main() |
| { |
| return 0; |
| } |
| EOF |
| if tryboth $CC -c $CFLAGS $test.c; then |
| CFLAGS="$CFLAGS -DHAVE_HIDDEN" |
| SFLAGS="$SFLAGS -DHAVE_HIDDEN" |
| echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log |
| else |
| echo "Checking for attribute(visibility) support... No." | tee -a configure.log |
| fi |
| fi |
| |
| echo >> configure.log |
| |
| # find a four-byte unsiged integer type for crc calculations |
| cat > $test.c <<EOF |
| #include <stdio.h> |
| #define is32(n,t) for(n=1,k=0;n;n<<=1,k++);if(k==32){puts(t);return 0;} |
| int main() { |
| int k; |
| unsigned i; |
| unsigned long l; |
| unsigned short s; |
| is32(i, "unsigned") |
| is32(l, "unsigned long") |
| is32(s, "unsigned short") |
| return 1; |
| } |
| EOF |
| Z_U4="" |
| if try $CC $CFLAGS $test.c -o $test && Z_U4=`./$test` && test -n "$Z_U4"; then |
| sed < zconf.h "/#define Z_U4/s/\/\* \.\/configure may/#define Z_U4 $Z_U4 \/* .\/configure put the/" > zconf.temp.h |
| mv zconf.temp.h zconf.h |
| echo "Looking for a four-byte integer type... Found." | tee -a configure.log |
| else |
| echo "Looking for a four-byte integer type... Not found." | tee -a configure.log |
| fi |
| |
| # clean up files produced by running the compiler and linker |
| rm -f $test.[co] $test $test$shared_ext $test.gcno |
| |
| # show the results in the log |
| echo >> configure.log |
| echo ALL = $ALL >> configure.log |
| echo AR = $AR >> configure.log |
| echo ARFLAGS = $ARFLAGS >> configure.log |
| echo CC = $CC >> configure.log |
| echo CFLAGS = $CFLAGS >> configure.log |
| echo CPP = $CPP >> configure.log |
| echo EXE = $EXE >> configure.log |
| echo LDCONFIG = $LDCONFIG >> configure.log |
| echo LDFLAGS = $LDFLAGS >> configure.log |
| echo LDSHARED = $LDSHARED >> configure.log |
| echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log |
| echo OBJC = $OBJC >> configure.log |
| echo PIC_OBJC = $PIC_OBJC >> configure.log |
| echo RANLIB = $RANLIB >> configure.log |
| echo SFLAGS = $SFLAGS >> configure.log |
| echo SHAREDLIB = $SHAREDLIB >> configure.log |
| echo SHAREDLIBM = $SHAREDLIBM >> configure.log |
| echo SHAREDLIBV = $SHAREDLIBV >> configure.log |
| echo STATICLIB = $STATICLIB >> configure.log |
| echo TEST = $TEST >> configure.log |
| echo VER = $VER >> configure.log |
| echo Z_U4 = $Z_U4 >> configure.log |
| echo exec_prefix = $exec_prefix >> configure.log |
| echo includedir = $includedir >> configure.log |
| echo libdir = $libdir >> configure.log |
| echo mandir = $mandir >> configure.log |
| echo prefix = $prefix >> configure.log |
| echo sharedlibdir = $sharedlibdir >> configure.log |
| echo uname = $uname >> configure.log |
| echo -------------------- >> configure.log |
| echo >> configure.log |
| echo >> configure.log |
| |
| # udpate Makefile with the configure results |
| sed < Makefile.in " |
| /^CC *=/s#=.*#=$CC# |
| /^CFLAGS *=/s#=.*#=$CFLAGS# |
| /^SFLAGS *=/s#=.*#=$SFLAGS# |
| /^LDFLAGS *=/s#=.*#=$LDFLAGS# |
| /^LDSHARED *=/s#=.*#=$LDSHARED# |
| /^CPP *=/s#=.*#=$CPP# |
| /^STATICLIB *=/s#=.*#=$STATICLIB# |
| /^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
| /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
| /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
| /^AR *=/s#=.*#=$AR# |
| /^ARFLAGS *=/s#=.*#=$ARFLAGS# |
| /^RANLIB *=/s#=.*#=$RANLIB# |
| /^LDCONFIG *=/s#=.*#=$LDCONFIG# |
| /^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# |
| /^EXE *=/s#=.*#=$EXE# |
| /^prefix *=/s#=.*#=$prefix# |
| /^exec_prefix *=/s#=.*#=$exec_prefix# |
| /^libdir *=/s#=.*#=$libdir# |
| /^sharedlibdir *=/s#=.*#=$sharedlibdir# |
| /^includedir *=/s#=.*#=$includedir# |
| /^mandir *=/s#=.*#=$mandir# |
| /^OBJC *=/s#=.*#= $OBJC# |
| /^PIC_OBJC *=/s#=.*#= $PIC_OBJC# |
| /^all: */s#:.*#: $ALL# |
| /^test: */s#:.*#: $TEST# |
| " > Makefile |
| |
| # create zlib.pc with the configure results |
| sed < zlib.pc.in " |
| /^CC *=/s#=.*#=$CC# |
| /^CFLAGS *=/s#=.*#=$CFLAGS# |
| /^CPP *=/s#=.*#=$CPP# |
| /^LDSHARED *=/s#=.*#=$LDSHARED# |
| /^STATICLIB *=/s#=.*#=$STATICLIB# |
| /^SHAREDLIB *=/s#=.*#=$SHAREDLIB# |
| /^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# |
| /^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# |
| /^AR *=/s#=.*#=$AR# |
| /^ARFLAGS *=/s#=.*#=$ARFLAGS# |
| /^RANLIB *=/s#=.*#=$RANLIB# |
| /^EXE *=/s#=.*#=$EXE# |
| /^prefix *=/s#=.*#=$prefix# |
| /^exec_prefix *=/s#=.*#=$exec_prefix# |
| /^libdir *=/s#=.*#=$libdir# |
| /^sharedlibdir *=/s#=.*#=$sharedlibdir# |
| /^includedir *=/s#=.*#=$includedir# |
| /^mandir *=/s#=.*#=$mandir# |
| /^LDFLAGS *=/s#=.*#=$LDFLAGS# |
| " | sed -e " |
| s/\@VERSION\@/$VER/g; |
| " > zlib.pc |
