/src/FreeImage/Source/ZLib/configure
Shell | 720 lines | 629 code | 45 blank | 46 comment | 74 complexity | aa9122a87a17c296550fd9b6336f3255 MD5 | raw file
1#!/bin/sh 2# configure script for zlib. 3# 4# Normally configure builds both a static and a shared library. 5# If you want to build just a static library, use: ./configure --static 6# 7# To impose specific compiler or flags or install directory, use for example: 8# prefix=$HOME CC=cc CFLAGS="-O4" ./configure 9# or for csh/tcsh users: 10# (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure) 11 12# Incorrect settings of CC or CFLAGS may prevent creating a shared library. 13# If you have problems, try without defining CC and CFLAGS before reporting 14# an error. 15 16echo -------------------- >> configure.log 17echo $0 $* >> configure.log 18date >> configure.log 19 20if [ -n "${CHOST}" ]; then 21 uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`" 22 CROSS_PREFIX="${CHOST}-" 23fi 24 25STATICLIB=libz.a 26VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h` 27VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < zlib.h` 28VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < zlib.h` 29VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < zlib.h` 30if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then 31 AR=${AR-"${CROSS_PREFIX}ar"} 32 test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log 33else 34 AR=${AR-"ar"} 35 test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log 36fi 37ARFLAGS=${ARFLAGS-"rc"} 38if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then 39 RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"} 40 test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log 41else 42 RANLIB=${RANLIB-"ranlib"} 43fi 44if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then 45 NM=${NM-"${CROSS_PREFIX}nm"} 46 test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log 47else 48 NM=${NM-"nm"} 49fi 50LDCONFIG=${LDCONFIG-"ldconfig"} 51LDSHAREDLIBC="${LDSHAREDLIBC--lc}" 52ARCHS= 53prefix=${prefix-/usr/local} 54exec_prefix=${exec_prefix-'${prefix}'} 55libdir=${libdir-'${exec_prefix}/lib'} 56sharedlibdir=${sharedlibdir-'${libdir}'} 57includedir=${includedir-'${prefix}/include'} 58mandir=${mandir-'${prefix}/share/man'} 59shared_ext='.so' 60shared=1 61solo=0 62cover=0 63zprefix=0 64build64=0 65gcc=0 66old_cc="$CC" 67old_cflags="$CFLAGS" 68OBJC='$(OBJZ) $(OBJG)' 69PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)' 70 71while test $# -ge 1 72do 73case "$1" in 74 -h* | --help) 75 echo 'usage:' | tee -a configure.log 76 echo ' configure [--zprefix] [--prefix=PREFIX] [--eprefix=EXPREFIX]' | tee -a configure.log 77 echo ' [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log 78 echo ' [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log 79 exit 0 ;; 80 -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;; 81 -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;; 82 -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;; 83 --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;; 84 -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;; 85 -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;; 86 -p* | --prefix) prefix="$2"; shift; shift ;; 87 -e* | --eprefix) exec_prefix="$2"; shift; shift ;; 88 -l* | --libdir) libdir="$2"; shift; shift ;; 89 -i* | --includedir) includedir="$2"; shift; shift ;; 90 -s* | --shared | --enable-shared) shared=1; shift ;; 91 -t | --static) shared=0; shift ;; 92 --solo) solo=1; shift ;; 93 --cover) cover=1; shift ;; 94 -z* | --zprefix) zprefix=1; shift ;; 95 -6* | --64) build64=1; shift ;; 96 -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;; 97 --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;; 98 --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;; 99 *) echo "unknown option: $1"; echo "$0 --help for help" | tee -a configure.log; exit 1 ;; 100 esac 101done 102 103test=ztest$$ 104 105show() 106{ 107 case "$*" in 108 *$test.c*) 109 echo === $test.c === >> configure.log 110 cat $test.c >> configure.log 111 echo === >> configure.log;; 112 esac 113 echo $* >> configure.log 114} 115 116cat > $test.c <<EOF 117#error error 118EOF 119if ($CC -c $CFLAGS $test.c) 2>/dev/null; then 120 try() 121 { 122 show $* 123 test "`( $* ) 2>&1 | tee -a configure.log`" = "" 124 } 125 echo - using any output from compiler to indicate an error >> configure.log 126else 127 try() 128 { 129 show $* 130 ( $* ) >> configure.log 2>&1 131 ret=$? 132 if test $ret -ne 0; then 133 echo "(exit code "$ret")" >> configure.log 134 fi 135 return $ret 136 } 137fi 138 139echo >> configure.log 140 141cat > $test.c <<EOF 142extern int getchar(); 143int hello() {return getchar();} 144EOF 145 146test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log 147cc=${CC-${CROSS_PREFIX}gcc} 148cflags=${CFLAGS-"-O3"} 149# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure 150case "$cc" in 151 *gcc*) gcc=1 ;; 152esac 153case `$cc -v 2>&1` in 154 *gcc*) gcc=1 ;; 155esac 156 157show $cc -c $cflags $test.c 158if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) >> configure.log 2>&1; then 159 echo ... using gcc >> configure.log 160 CC="$cc" 161 CFLAGS="${CFLAGS--O3} ${ARCHS}" 162 SFLAGS="${CFLAGS--O3} -fPIC" 163 LDFLAGS="${LDFLAGS} ${ARCHS}" 164 if test $build64 -eq 1; then 165 CFLAGS="${CFLAGS} -m64" 166 SFLAGS="${SFLAGS} -m64" 167 fi 168 if test "${ZLIBGCCWARN}" = "YES"; then 169 CFLAGS="${CFLAGS} -Wall -Wextra -pedantic" 170 fi 171 if test -z "$uname"; then 172 uname=`(uname -s || echo unknown) 2>/dev/null` 173 fi 174 case "$uname" in 175 Linux* | linux* | GNU | GNU/* | solaris*) 176 LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} ;; 177 *BSD | *bsd* | DragonFly) 178 LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,zlib.map"} 179 LDCONFIG="ldconfig -m" ;; 180 CYGWIN* | Cygwin* | cygwin* | OS/2*) 181 EXE='.exe' ;; 182 MINGW* | mingw*) 183# temporary bypass 184 rm -f $test.[co] $test $test$shared_ext 185 echo "Please use win32/Makefile.gcc instead." | tee -a configure.log 186 exit 1 187 LDSHARED=${LDSHARED-"$cc -shared"} 188 LDSHAREDLIBC="" 189 EXE='.exe' ;; 190 QNX*) # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4 191 # (alain.bonnefoy@icbt.com) 192 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;; 193 HP-UX*) 194 LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"} 195 case `(uname -m || echo unknown) 2>/dev/null` in 196 ia64) 197 shared_ext='.so' 198 SHAREDLIB='libz.so' ;; 199 *) 200 shared_ext='.sl' 201 SHAREDLIB='libz.sl' ;; 202 esac ;; 203 Darwin* | darwin*) 204 shared_ext='.dylib' 205 SHAREDLIB=libz$shared_ext 206 SHAREDLIBV=libz.$VER$shared_ext 207 SHAREDLIBM=libz.$VER1$shared_ext 208 LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"} 209 AR="libtool" 210 ARFLAGS="-o" ;; 211 *) LDSHARED=${LDSHARED-"$cc -shared"} ;; 212 esac 213else 214 # find system name and corresponding cc options 215 CC=${CC-cc} 216 gcc=0 217 echo ... using $CC >> configure.log 218 if test -z "$uname"; then 219 uname=`(uname -sr || echo unknown) 2>/dev/null` 220 fi 221 case "$uname" in 222 HP-UX*) SFLAGS=${CFLAGS-"-O +z"} 223 CFLAGS=${CFLAGS-"-O"} 224# LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"} 225 LDSHARED=${LDSHARED-"ld -b"} 226 case `(uname -m || echo unknown) 2>/dev/null` in 227 ia64) 228 shared_ext='.so' 229 SHAREDLIB='libz.so' ;; 230 *) 231 shared_ext='.sl' 232 SHAREDLIB='libz.sl' ;; 233 esac ;; 234 IRIX*) SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."} 235 CFLAGS=${CFLAGS-"-ansi -O2"} 236 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; 237 OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"} 238 CFLAGS=${CFLAGS-"-O -std1"} 239 LDFLAGS="${LDFLAGS} -Wl,-rpath,." 240 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;; 241 OSF1*) SFLAGS=${CFLAGS-"-O -std1"} 242 CFLAGS=${CFLAGS-"-O -std1"} 243 LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;; 244 QNX*) SFLAGS=${CFLAGS-"-4 -O"} 245 CFLAGS=${CFLAGS-"-4 -O"} 246 LDSHARED=${LDSHARED-"cc"} 247 RANLIB=${RANLIB-"true"} 248 AR="cc" 249 ARFLAGS="-A" ;; 250 SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "} 251 CFLAGS=${CFLAGS-"-O3"} 252 LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;; 253 SunOS\ 5* | solaris*) 254 LDSHARED=${LDSHARED-"cc -G"} 255 case `(uname -m || echo unknown) 2>/dev/null` in 256 i86*) 257 SFLAGS=${CFLAGS-"-xpentium -fast -KPIC -R."} 258 CFLAGS=${CFLAGS-"-xpentium -fast"} ;; 259 *) 260 SFLAGS=${CFLAGS-"-fast -xcg92 -KPIC -R."} 261 CFLAGS=${CFLAGS-"-fast -xcg92"} ;; 262 esac ;; 263 SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"} 264 CFLAGS=${CFLAGS-"-O2"} 265 LDSHARED=${LDSHARED-"ld"} ;; 266 SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"} 267 CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"} 268 LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;; 269 UNIX_System_V\ 4.2.0) 270 SFLAGS=${CFLAGS-"-KPIC -O"} 271 CFLAGS=${CFLAGS-"-O"} 272 LDSHARED=${LDSHARED-"cc -G"} ;; 273 UNIX_SV\ 4.2MP) 274 SFLAGS=${CFLAGS-"-Kconform_pic -O"} 275 CFLAGS=${CFLAGS-"-O"} 276 LDSHARED=${LDSHARED-"cc -G"} ;; 277 OpenUNIX\ 5) 278 SFLAGS=${CFLAGS-"-KPIC -O"} 279 CFLAGS=${CFLAGS-"-O"} 280 LDSHARED=${LDSHARED-"cc -G"} ;; 281 AIX*) # Courtesy of dbakker@arrayasolutions.com 282 SFLAGS=${CFLAGS-"-O -qmaxmem=8192"} 283 CFLAGS=${CFLAGS-"-O -qmaxmem=8192"} 284 LDSHARED=${LDSHARED-"xlc -G"} ;; 285 # send working options for other systems to zlib@gzip.org 286 *) SFLAGS=${CFLAGS-"-O"} 287 CFLAGS=${CFLAGS-"-O"} 288 LDSHARED=${LDSHARED-"cc -shared"} ;; 289 esac 290fi 291 292SHAREDLIB=${SHAREDLIB-"libz$shared_ext"} 293SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"} 294SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"} 295 296echo >> configure.log 297 298if test $shared -eq 1; then 299 echo Checking for shared library support... | tee -a configure.log 300 # we must test in two steps (cc then ld), required at least on SunOS 4.x 301 if try $CC -w -c $SFLAGS $test.c && 302 try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then 303 echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log 304 elif test -z "$old_cc" -a -z "$old_cflags"; then 305 echo No shared library support. | tee -a configure.log 306 shared=0; 307 else 308 echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log 309 shared=0; 310 fi 311fi 312if test $shared -eq 0; then 313 LDSHARED="$CC" 314 ALL="static" 315 TEST="all teststatic" 316 SHAREDLIB="" 317 SHAREDLIBV="" 318 SHAREDLIBM="" 319 echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log 320else 321 ALL="static shared" 322 TEST="all teststatic testshared" 323fi 324 325CPP=${CPP-"$CC -E"} 326case $CFLAGS in 327 *ASMV*) 328 echo >> configure.log 329 show "$NM $test.o | grep _hello" 330 if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then 331 CPP="$CPP -DNO_UNDERLINE" 332 echo Checking for underline in external names... No. | tee -a configure.log 333 else 334 echo Checking for underline in external names... Yes. | tee -a configure.log 335 fi ;; 336esac 337 338echo >> configure.log 339 340cat > $test.c <<EOF 341#include <sys/types.h> 342off64_t dummy = 0; 343EOF 344if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then 345 CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1" 346 SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1" 347 ALL="${ALL} all64" 348 TEST="${TEST} test64" 349 echo "Checking for off64_t... Yes." | tee -a configure.log 350 echo "Checking for fseeko... Yes." | tee -a configure.log 351else 352 echo "Checking for off64_t... No." | tee -a configure.log 353 echo >> configure.log 354 cat > $test.c <<EOF 355#include <stdio.h> 356int main(void) { 357 fseeko(NULL, 0, 0); 358 return 0; 359} 360EOF 361 if try $CC $CFLAGS -o $test $test.c; then 362 echo "Checking for fseeko... Yes." | tee -a configure.log 363 else 364 CFLAGS="${CFLAGS} -DNO_FSEEKO" 365 SFLAGS="${SFLAGS} -DNO_FSEEKO" 366 echo "Checking for fseeko... No." | tee -a configure.log 367 fi 368fi 369 370cp -p zconf.h.in zconf.h 371 372echo >> configure.log 373 374cat > $test.c <<EOF 375#include <unistd.h> 376int main() { return 0; } 377EOF 378if try $CC -c $CFLAGS $test.c; then 379 sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h 380 mv zconf.temp.h zconf.h 381 echo "Checking for unistd.h... Yes." | tee -a configure.log 382else 383 echo "Checking for unistd.h... No." | tee -a configure.log 384fi 385 386echo >> configure.log 387 388cat > $test.c <<EOF 389#include <stdarg.h> 390int main() { return 0; } 391EOF 392if try $CC -c $CFLAGS $test.c; then 393 sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h 394 mv zconf.temp.h zconf.h 395 echo "Checking for stdarg.h... Yes." | tee -a configure.log 396else 397 echo "Checking for stdarg.h... No." | tee -a configure.log 398fi 399 400if test $zprefix -eq 1; then 401 sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h 402 mv zconf.temp.h zconf.h 403 echo >> configure.log 404 echo "Using z_ prefix on all symbols." | tee -a configure.log 405fi 406 407if test $solo -eq 1; then 408 sed '/#define ZCONF_H/a\ 409#define Z_SOLO 410 411' < zconf.h > zconf.temp.h 412 mv zconf.temp.h zconf.h 413OBJC='$(OBJZ)' 414PIC_OBJC='$(PIC_OBJZ)' 415fi 416 417if test $cover -eq 1; then 418 CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage" 419fi 420 421echo >> configure.log 422 423cat > $test.c <<EOF 424#include <stdio.h> 425#include <stdarg.h> 426#include "zconf.h" 427int main() 428{ 429#ifndef STDC 430 choke me 431#endif 432 return 0; 433} 434EOF 435 436if try $CC -c $CFLAGS $test.c; then 437 echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log 438 439 echo >> configure.log 440 cat > $test.c <<EOF 441#include <stdio.h> 442#include <stdarg.h> 443int mytest(const char *fmt, ...) 444{ 445 char buf[20]; 446 va_list ap; 447 va_start(ap, fmt); 448 vsnprintf(buf, sizeof(buf), fmt, ap); 449 va_end(ap); 450 return 0; 451} 452int main() 453{ 454 return (mytest("Hello%d\n", 1)); 455} 456EOF 457 if try $CC $CFLAGS -o $test $test.c; then 458 echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log 459 460 echo >> configure.log 461 cat >$test.c <<EOF 462#include <stdio.h> 463#include <stdarg.h> 464int mytest(const char *fmt, ...) 465{ 466 int n; 467 char buf[20]; 468 va_list ap; 469 va_start(ap, fmt); 470 n = vsnprintf(buf, sizeof(buf), fmt, ap); 471 va_end(ap); 472 return n; 473} 474int main() 475{ 476 return (mytest("Hello%d\n", 1)); 477} 478EOF 479 480 if try $CC -c $CFLAGS $test.c; then 481 echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log 482 else 483 CFLAGS="$CFLAGS -DHAS_vsnprintf_void" 484 SFLAGS="$SFLAGS -DHAS_vsnprintf_void" 485 echo "Checking for return value of vsnprintf()... No." | tee -a configure.log 486 echo " WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log 487 echo " can build but will be open to possible string-format security" | tee -a configure.log 488 echo " vulnerabilities." | tee -a configure.log 489 fi 490 else 491 CFLAGS="$CFLAGS -DNO_vsnprintf" 492 SFLAGS="$SFLAGS -DNO_vsnprintf" 493 echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log 494 echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log 495 echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log 496 echo " vulnerabilities." | tee -a configure.log 497 498 echo >> configure.log 499 cat >$test.c <<EOF 500#include <stdio.h> 501#include <stdarg.h> 502int mytest(const char *fmt, ...) 503{ 504 int n; 505 char buf[20]; 506 va_list ap; 507 va_start(ap, fmt); 508 n = vsprintf(buf, fmt, ap); 509 va_end(ap); 510 return n; 511} 512int main() 513{ 514 return (mytest("Hello%d\n", 1)); 515} 516EOF 517 518 if try $CC -c $CFLAGS $test.c; then 519 echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log 520 else 521 CFLAGS="$CFLAGS -DHAS_vsprintf_void" 522 SFLAGS="$SFLAGS -DHAS_vsprintf_void" 523 echo "Checking for return value of vsprintf()... No." | tee -a configure.log 524 echo " WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log 525 echo " can build but will be open to possible string-format security" | tee -a configure.log 526 echo " vulnerabilities." | tee -a configure.log 527 fi 528 fi 529else 530 echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log 531 532 echo >> configure.log 533 cat >$test.c <<EOF 534#include <stdio.h> 535int mytest() 536{ 537 char buf[20]; 538 snprintf(buf, sizeof(buf), "%s", "foo"); 539 return 0; 540} 541int main() 542{ 543 return (mytest()); 544} 545EOF 546 547 if try $CC $CFLAGS -o $test $test.c; then 548 echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log 549 550 echo >> configure.log 551 cat >$test.c <<EOF 552#include <stdio.h> 553int mytest() 554{ 555 char buf[20]; 556 return snprintf(buf, sizeof(buf), "%s", "foo"); 557} 558int main() 559{ 560 return (mytest()); 561} 562EOF 563 564 if try $CC -c $CFLAGS $test.c; then 565 echo "Checking for return value of snprintf()... Yes." | tee -a configure.log 566 else 567 CFLAGS="$CFLAGS -DHAS_snprintf_void" 568 SFLAGS="$SFLAGS -DHAS_snprintf_void" 569 echo "Checking for return value of snprintf()... No." | tee -a configure.log 570 echo " WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log 571 echo " can build but will be open to possible string-format security" | tee -a configure.log 572 echo " vulnerabilities." | tee -a configure.log 573 fi 574 else 575 CFLAGS="$CFLAGS -DNO_snprintf" 576 SFLAGS="$SFLAGS -DNO_snprintf" 577 echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log 578 echo " WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log 579 echo " can build but will be open to possible buffer-overflow security" | tee -a configure.log 580 echo " vulnerabilities." | tee -a configure.log 581 582 echo >> configure.log 583 cat >$test.c <<EOF 584#include <stdio.h> 585int mytest() 586{ 587 char buf[20]; 588 return sprintf(buf, "%s", "foo"); 589} 590int main() 591{ 592 return (mytest()); 593} 594EOF 595 596 if try $CC -c $CFLAGS $test.c; then 597 echo "Checking for return value of sprintf()... Yes." | tee -a configure.log 598 else 599 CFLAGS="$CFLAGS -DHAS_sprintf_void" 600 SFLAGS="$SFLAGS -DHAS_sprintf_void" 601 echo "Checking for return value of sprintf()... No." | tee -a configure.log 602 echo " WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log 603 echo " can build but will be open to possible string-format security" | tee -a configure.log 604 echo " vulnerabilities." | tee -a configure.log 605 fi 606 fi 607fi 608 609if test "$gcc" -eq 1; then 610 echo >> configure.log 611 cat > $test.c <<EOF 612#if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) 613# define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) 614#else 615# define ZLIB_INTERNAL 616#endif 617int ZLIB_INTERNAL foo; 618int main() 619{ 620 return 0; 621} 622EOF 623 if try $CC -c $CFLAGS $test.c; then 624 echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log 625 else 626 CFLAGS="$CFLAGS -DNO_VIZ" 627 SFLAGS="$SFLAGS -DNO_VIZ" 628 echo "Checking for attribute(visibility) support... No." | tee -a configure.log 629 fi 630fi 631 632rm -f $test.[co] $test $test$shared_ext $test.gcno 633 634# show the results in the log 635echo >> configure.log 636echo ALL = $ALL >> configure.log 637echo AR = $AR >> configure.log 638echo ARFLAGS = $ARFLAGS >> configure.log 639echo CC = $CC >> configure.log 640echo CFLAGS = $CFLAGS >> configure.log 641echo CPP = $CPP >> configure.log 642echo EXE = $EXE >> configure.log 643echo LDCONFIG = $LDCONFIG >> configure.log 644echo LDFLAGS = $LDFLAGS >> configure.log 645echo LDSHARED = $LDSHARED >> configure.log 646echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log 647echo OBJC = $OBJC >> configure.log 648echo PIC_OBJC = $PIC_OBJC >> configure.log 649echo RANLIB = $RANLIB >> configure.log 650echo SFLAGS = $SFLAGS >> configure.log 651echo SHAREDLIB = $SHAREDLIB >> configure.log 652echo SHAREDLIBM = $SHAREDLIBM >> configure.log 653echo SHAREDLIBV = $SHAREDLIBV >> configure.log 654echo STATICLIB = $STATICLIB >> configure.log 655echo TEST = $TEST >> configure.log 656echo VER = $VER >> configure.log 657echo exec_prefix = $exec_prefix >> configure.log 658echo includedir = $includedir >> configure.log 659echo libdir = $libdir >> configure.log 660echo mandir = $mandir >> configure.log 661echo prefix = $prefix >> configure.log 662echo sharedlibdir = $sharedlibdir >> configure.log 663echo uname = $uname >> configure.log 664echo -------------------- >> configure.log 665echo >> configure.log 666echo >> configure.log 667 668# udpate Makefile 669sed < Makefile.in " 670/^CC *=/s#=.*#=$CC# 671/^CFLAGS *=/s#=.*#=$CFLAGS# 672/^SFLAGS *=/s#=.*#=$SFLAGS# 673/^LDFLAGS *=/s#=.*#=$LDFLAGS# 674/^LDSHARED *=/s#=.*#=$LDSHARED# 675/^CPP *=/s#=.*#=$CPP# 676/^STATICLIB *=/s#=.*#=$STATICLIB# 677/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# 678/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# 679/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# 680/^AR *=/s#=.*#=$AR# 681/^ARFLAGS *=/s#=.*#=$ARFLAGS# 682/^RANLIB *=/s#=.*#=$RANLIB# 683/^LDCONFIG *=/s#=.*#=$LDCONFIG# 684/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC# 685/^EXE *=/s#=.*#=$EXE# 686/^prefix *=/s#=.*#=$prefix# 687/^exec_prefix *=/s#=.*#=$exec_prefix# 688/^libdir *=/s#=.*#=$libdir# 689/^sharedlibdir *=/s#=.*#=$sharedlibdir# 690/^includedir *=/s#=.*#=$includedir# 691/^mandir *=/s#=.*#=$mandir# 692/^OBJC *=/s#=.*#= $OBJC# 693/^PIC_OBJC *=/s#=.*#= $PIC_OBJC# 694/^all: */s#:.*#: $ALL# 695/^test: */s#:.*#: $TEST# 696" > Makefile 697 698sed < zlib.pc.in " 699/^CC *=/s#=.*#=$CC# 700/^CFLAGS *=/s#=.*#=$CFLAGS# 701/^CPP *=/s#=.*#=$CPP# 702/^LDSHARED *=/s#=.*#=$LDSHARED# 703/^STATICLIB *=/s#=.*#=$STATICLIB# 704/^SHAREDLIB *=/s#=.*#=$SHAREDLIB# 705/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV# 706/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM# 707/^AR *=/s#=.*#=$AR# 708/^ARFLAGS *=/s#=.*#=$ARFLAGS# 709/^RANLIB *=/s#=.*#=$RANLIB# 710/^EXE *=/s#=.*#=$EXE# 711/^prefix *=/s#=.*#=$prefix# 712/^exec_prefix *=/s#=.*#=$exec_prefix# 713/^libdir *=/s#=.*#=$libdir# 714/^sharedlibdir *=/s#=.*#=$sharedlibdir# 715/^includedir *=/s#=.*#=$includedir# 716/^mandir *=/s#=.*#=$mandir# 717/^LDFLAGS *=/s#=.*#=$LDFLAGS# 718" | sed -e " 719s/\@VERSION\@/$VER/g; 720" > zlib.pc