The Tor Browser: build/autoconf/zlib.m4@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 dnl This Source Code Form is subject to the terms of the Mozilla Public

     2 dnl License, v. 2.0. If a copy of the MPL was not distributed with this

     3 dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.

     5 dnl Usage: MOZ_ZLIB_CHECK([version])

     7 AC_DEFUN([MOZ_ZLIB_CHECK],

8 [

    10 MOZZLIB=$1

    12 MOZ_ARG_WITH_STRING(system-zlib,

    13 [  --with-system-zlib[=PFX]

    14                           Use system libz [installed at prefix PFX]],

    15     ZLIB_DIR=$withval)

    17 if test -z "$MOZ_ZLIB_LIBS$MOZ_ZLIB_CFLAGS$SKIP_LIBRARY_CHECKS"; then

    18     _SAVE_CFLAGS=$CFLAGS

    19     _SAVE_LDFLAGS=$LDFLAGS

    20     _SAVE_LIBS=$LIBS

    22     if test -n "${ZLIB_DIR}" -a "${ZLIB_DIR}" != "yes"; then

    23         MOZ_ZLIB_CFLAGS="-I${ZLIB_DIR}/include"

    24         MOZ_ZLIB_LIBS="-L${ZLIB_DIR}/lib"

    25         CFLAGS="$MOZ_ZLIB_CFLAGS $CFLAGS"

    26         LDFLAGS="$MOZ_ZLIB_LIBS $LDFLAGS"

    27     fi

    28     if test -z "$ZLIB_DIR" -o "$ZLIB_DIR" = no; then

    29         MOZ_NATIVE_ZLIB=

    30     else

    31         AC_CHECK_LIB(z, gzread, [MOZ_NATIVE_ZLIB=1 MOZ_ZLIB_LIBS="$MOZ_ZLIB_LIBS -lz"],

    32             [MOZ_NATIVE_ZLIB=])

    33         if test "$MOZ_NATIVE_ZLIB" = 1; then

    34             MOZZLIBNUM=`echo $MOZZLIB | awk -F. changequote(<<, >>)'{printf "0x%x\n", (((<<$>>1 * 16 + <<$>>2) * 16) + <<$>>3) * 16 + <<$>>4}'changequote([, ])`

    35             AC_TRY_COMPILE([ #include <stdio.h>

    36                              #include <string.h>

    37                              #include <zlib.h> ],

    38                            [ #if ZLIB_VERNUM < $MOZZLIBNUM

    39                              #error "Insufficient zlib version ($MOZZLIBNUM required)."

    40                              #endif ],

    41                            MOZ_NATIVE_ZLIB=1,

    42                            AC_MSG_ERROR([Insufficient zlib version for --with-system-zlib ($MOZZLIB required)]))

    43         fi

    44     fi

    45     CFLAGS=$_SAVE_CFLAGS

    46     LDFLAGS=$_SAVE_LDFLAGS

    47     LIBS=$_SAVE_LIBS

    48 fi

    50 AC_SUBST(MOZ_ZLIB_CFLAGS)

    51 AC_SUBST(MOZ_ZLIB_LIBS)

    52 AC_SUBST(MOZ_NATIVE_ZLIB)

    54 ])

The Tor Browser / file revision

build/autoconf/zlib.m4@6474c204b198

build/autoconf/zlib.m4