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      1 #                                               -*- Autoconf -*-
      2 # Process this file with autoconf to produce a configure script.
      3 
      4 AC_PREREQ([2.56])
      5 AC_INIT([libjpeg-turbo], [1.5.1])
      6 
      7 AM_INIT_AUTOMAKE([-Wall foreign dist-bzip2])
      8 AC_PREFIX_DEFAULT(/opt/libjpeg-turbo)
      9 
     10 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
     11 
     12 # Checks for programs.
     13 SAVED_CFLAGS=${CFLAGS}
     14 SAVED_CPPFLAGS=${CPPFLAGS}
     15 AC_PROG_CPP
     16 AC_PROG_CC
     17 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
     18 AM_PROG_AS
     19 AM_PROG_CC_C_O
     20 AC_PROG_INSTALL
     21 AC_PROG_LIBTOOL
     22 AC_PROG_LN_S
     23 
     24 AC_ARG_WITH([build-date], [Use custom build string to enable reproducible builds (default: YYMMDD)],
     25   [BUILD="$with_build_date"],
     26   [BUILD=`date +%Y%m%d`])
     27 
     28 PKG_PROG_PKG_CONFIG
     29 
     30 # When the prefix is /opt/libjpeg-turbo, we assume that an "official" binary is
     31 # being created, and thus we install things into specific locations.
     32 
     33 old_prefix=${prefix}
     34 if test "x$prefix" = "xNONE" -a "x$ac_default_prefix" != "x"; then
     35   prefix=$ac_default_prefix
     36 fi
     37 DATADIR=`eval echo ${datadir}`
     38 DATADIR=`eval echo $DATADIR`
     39 if test "$DATADIR" = "/opt/libjpeg-turbo/share"; then
     40   datadir='${prefix}'
     41 fi
     42 DATADIR=`eval echo ${datarootdir}`
     43 DATADIR=`eval echo $DATADIR`
     44 if test "$DATADIR" = "/opt/libjpeg-turbo/share"; then
     45   datarootdir='${prefix}'
     46 fi
     47 DOCDIR=`eval echo ${docdir}`
     48 DOCDIR=`eval echo $DOCDIR`
     49 if test "$DOCDIR" = "/opt/libjpeg-turbo/doc/libjpeg-turbo"; then
     50   docdir='${datadir}/doc'
     51 fi
     52 
     53 old_exec_prefix=${exec_prefix}
     54 if test "x$exec_prefix" = "xNONE"; then
     55   exec_prefix=${prefix}
     56 fi
     57 
     58 AC_CHECK_SIZEOF(size_t)
     59 
     60 if test "x${libdir}" = 'x${exec_prefix}/lib' -o "x${libdir}" = 'x${prefix}/lib'; then
     61   LIBDIR=`eval echo ${libdir}`
     62   LIBDIR=`eval echo $LIBDIR`
     63   if test "$LIBDIR" = "/opt/libjpeg-turbo/lib"; then
     64     case $host_os in
     65       darwin*)
     66         ;;
     67       *)
     68         if test "${ac_cv_sizeof_size_t}" = "8"; then
     69           libdir='${exec_prefix}/lib64'
     70         elif test "${ac_cv_sizeof_size_t}" = "4"; then
     71           libdir='${exec_prefix}/lib32'
     72         fi
     73         ;;
     74     esac
     75   fi
     76 fi
     77 exec_prefix=${old_exec_prefix}
     78 prefix=${old_prefix}
     79 
     80 # Check whether compiler supports pointers to undefined structures
     81 AC_MSG_CHECKING(whether compiler supports pointers to undefined structures)
     82 AC_TRY_COMPILE([ typedef struct undefined_structure *undef_struct_ptr; ], ,
     83   AC_MSG_RESULT(yes),
     84   [AC_MSG_RESULT(no)
     85    AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1],
     86      [Compiler does not support pointers to undefined structures.])])
     87 
     88 if test "x${GCC}" = "xyes"; then
     89   if test "x${SAVED_CFLAGS}" = "x"; then
     90     CFLAGS=-O3
     91   fi
     92   if test "x${SAVED_CPPFLAGS}" = "x"; then
     93     CPPFLAGS=-Wall
     94   fi
     95 fi
     96 
     97 AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
     98 if test "x${SUNCC}" = "xyes"; then
     99   if test "x${SAVED_CFLAGS}" = "x"; then
    100     CFLAGS=-xO5
    101   fi
    102 fi
    103 
    104 # Checks for libraries.
    105 
    106 # Checks for header files.
    107 AC_HEADER_STDC
    108 AC_CHECK_HEADERS([stddef.h stdlib.h locale.h string.h])
    109 AC_CHECK_HEADER([sys/types.h],
    110   AC_DEFINE([NEED_SYS_TYPES_H], 1, [Define if you need to include <sys/types.h> to get size_t.]))
    111 
    112 # Checks for typedefs, structures, and compiler characteristics.
    113 AC_C_CONST
    114 AC_C_CHAR_UNSIGNED
    115 AC_C_INLINE
    116 AC_TYPE_SIZE_T
    117 AC_CHECK_TYPES([unsigned char, unsigned short])
    118 
    119 AC_MSG_CHECKING([if right shift is signed])
    120 AC_TRY_RUN(
    121   [#include <stdio.h>
    122    int is_shifting_signed (long arg) {
    123      long res = arg >> 4;
    124 
    125      if (res == -0x7F7E80CL)
    126        return 1; /* right shift is signed */
    127 
    128      /* see if unsigned-shift hack will fix it. */
    129      /* we can't just test exact value since it depends on width of long... */
    130      res |= (~0L) << (32-4);
    131      if (res == -0x7F7E80CL)
    132        return 0; /* right shift is unsigned */
    133 
    134      printf("Right shift isn't acting as I expect it to.\n");
    135      printf("I fear the JPEG software will not work at all.\n\n");
    136      return 0; /* try it with unsigned anyway */
    137    }
    138    int main (void) {
    139      exit(is_shifting_signed(-0x7F7E80B1L));
    140    }],
    141   [AC_MSG_RESULT(no)
    142    AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], 1,
    143      [Define if your (broken) compiler shifts signed values as if they were unsigned.])],
    144   [AC_MSG_RESULT(yes)],
    145   [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)])
    146 
    147 # Checks for library functions.
    148 AC_CHECK_FUNCS([memset memcpy], [],
    149   [AC_DEFINE([NEED_BSD_STRINGS], 1,
    150      [Define if you have BSD-like bzero and bcopy in <strings.h> rather than memset/memcpy in <string.h>.])])
    151 
    152 AC_MSG_CHECKING([libjpeg API version])
    153 AC_ARG_VAR(JPEG_LIB_VERSION, [libjpeg API version (62, 70, or 80)])
    154 if test "x$JPEG_LIB_VERSION" = "x"; then
    155   AC_ARG_WITH([jpeg7],
    156     AC_HELP_STRING([--with-jpeg7],
    157       [Emulate libjpeg v7 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b.)]))
    158   AC_ARG_WITH([jpeg8],
    159     AC_HELP_STRING([--with-jpeg8],
    160       [Emulate libjpeg v8 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b.)]))
    161   if test "x${with_jpeg8}" = "xyes"; then
    162     JPEG_LIB_VERSION=80
    163   else
    164     if test "x${with_jpeg7}" = "xyes"; then
    165       JPEG_LIB_VERSION=70
    166     else
    167       JPEG_LIB_VERSION=62
    168     fi
    169   fi
    170 fi
    171 JPEG_LIB_VERSION_DECIMAL=`expr $JPEG_LIB_VERSION / 10`.`expr $JPEG_LIB_VERSION % 10`
    172 AC_SUBST(JPEG_LIB_VERSION_DECIMAL)
    173 AC_MSG_RESULT([$JPEG_LIB_VERSION_DECIMAL])
    174 AC_DEFINE_UNQUOTED(JPEG_LIB_VERSION, [$JPEG_LIB_VERSION],
    175   [libjpeg API version])
    176 
    177 AC_ARG_VAR(SO_MAJOR_VERSION,
    178   [Major version of the libjpeg-turbo shared library (default is determined by the API version)])
    179 AC_ARG_VAR(SO_MINOR_VERSION,
    180   [Minor version of the libjpeg-turbo shared library (default is determined by the API version)])
    181 if test "x$SO_MAJOR_VERSION" = "x"; then
    182   case "$JPEG_LIB_VERSION" in
    183     62)  SO_MAJOR_VERSION=$JPEG_LIB_VERSION ;;
    184     *)   SO_MAJOR_VERSION=`expr $JPEG_LIB_VERSION / 10` ;;
    185   esac
    186 fi
    187 if test "x$SO_MINOR_VERSION" = "x"; then
    188   case "$JPEG_LIB_VERSION" in
    189     80)  SO_MINOR_VERSION=2 ;;
    190     *)   SO_MINOR_VERSION=0 ;;
    191   esac
    192 fi
    193 
    194 RPM_CONFIG_ARGS=
    195 
    196 # Memory source/destination managers
    197 SO_AGE=1
    198 MEM_SRCDST_FUNCTIONS=
    199 if test "x${with_jpeg8}" != "xyes"; then
    200   AC_MSG_CHECKING([whether to include in-memory source/destination managers])
    201   AC_ARG_WITH([mem-srcdst],
    202     AC_HELP_STRING([--without-mem-srcdst],
    203       [Do not include in-memory source/destination manager functions when emulating the libjpeg v6b or v7 API/ABI]))
    204   if test "x$with_mem_srcdst" != "xno"; then
    205     AC_MSG_RESULT(yes)
    206     AC_DEFINE([MEM_SRCDST_SUPPORTED], [1],
    207       [Support in-memory source/destination managers])
    208     SO_AGE=2
    209     MEM_SRCDST_FUNCTIONS="global:  jpeg_mem_dest;  jpeg_mem_src;";
    210   else
    211     AC_MSG_RESULT(no)
    212     RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-mem-srcdst"
    213   fi
    214 fi
    215 
    216 AC_MSG_CHECKING([libjpeg shared library version])
    217 AC_MSG_RESULT([$SO_MAJOR_VERSION.$SO_AGE.$SO_MINOR_VERSION])
    218 LIBTOOL_CURRENT=`expr $SO_MAJOR_VERSION + $SO_AGE`
    219 AC_SUBST(LIBTOOL_CURRENT)
    220 AC_SUBST(SO_MAJOR_VERSION)
    221 AC_SUBST(SO_MINOR_VERSION)
    222 AC_SUBST(SO_AGE)
    223 AC_SUBST(MEM_SRCDST_FUNCTIONS)
    224 
    225 AC_DEFINE_UNQUOTED(LIBJPEG_TURBO_VERSION, [$VERSION], [libjpeg-turbo version])
    226 
    227 m4_define(version_triplet,m4_split(AC_PACKAGE_VERSION,[[.]]))
    228 m4_define(version_major,m4_argn(1,version_triplet))
    229 m4_define(version_minor,m4_argn(2,version_triplet))
    230 m4_define(version_revision,m4_argn(3,version_triplet))
    231 VERSION_MAJOR=version_major
    232 VERSION_MINOR=version_minor
    233 VERSION_REVISION=version_revision
    234 LIBJPEG_TURBO_VERSION_NUMBER=`printf "%d%03d%03d" $VERSION_MAJOR $VERSION_MINOR $VERSION_REVISION`
    235 AC_DEFINE_UNQUOTED(LIBJPEG_TURBO_VERSION_NUMBER, [$LIBJPEG_TURBO_VERSION_NUMBER], [libjpeg-turbo version in integer form])
    236 
    237 VERSION_SCRIPT=yes
    238 AC_ARG_ENABLE([ld-version-script],
    239   AS_HELP_STRING([--disable-ld-version-script],
    240     [Disable linker version script for libjpeg-turbo (default is to use linker version script if the linker supports it)]),
    241   [VERSION_SCRIPT=$enableval], [])
    242 
    243 AC_MSG_CHECKING([whether the linker supports version scripts])
    244 SAVED_LDFLAGS="$LDFLAGS"
    245 LDFLAGS="$LDFLAGS -Wl,--version-script,conftest.map"
    246 cat > conftest.map <<EOF
    247 VERS_1 {
    248   global: *;
    249 };
    250 EOF
    251 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
    252   [VERSION_SCRIPT_FLAG=-Wl,--version-script,;
    253    AC_MSG_RESULT([yes (GNU style)])],
    254   [])
    255 if test "x$VERSION_SCRIPT_FLAG" = "x"; then
    256   LDFLAGS="$SAVED_LDFLAGS -Wl,-M,conftest.map"
    257   AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
    258     [VERSION_SCRIPT_FLAG=-Wl,-M,;
    259      AC_MSG_RESULT([yes (Sun style)])],
    260     [])
    261 fi
    262 if test "x$VERSION_SCRIPT_FLAG" = "x"; then
    263   VERSION_SCRIPT=no
    264   AC_MSG_RESULT(no)
    265 fi
    266 LDFLAGS="$SAVED_LDFLAGS"
    267 
    268 AC_MSG_CHECKING([whether to use version script when building libjpeg-turbo])
    269 AC_MSG_RESULT($VERSION_SCRIPT)
    270 
    271 AM_CONDITIONAL(VERSION_SCRIPT, test "x$VERSION_SCRIPT" = "xyes")
    272 AC_SUBST(VERSION_SCRIPT_FLAG)
    273 
    274 # Check for non-broken inline under various spellings
    275 AC_MSG_CHECKING(for inline)
    276 ljt_cv_inline=""
    277 AC_TRY_COMPILE(, [} inline __attribute__((always_inline)) int foo() { return 0; }
    278 int bar() { return foo();], ljt_cv_inline="inline __attribute__((always_inline))",
    279 AC_TRY_COMPILE(, [} __inline__ int foo() { return 0; }
    280 int bar() { return foo();], ljt_cv_inline="__inline__",
    281 AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
    282 int bar() { return foo();], ljt_cv_inline="__inline",
    283 AC_TRY_COMPILE(, [} inline int foo() { return 0; }
    284 int bar() { return foo();], ljt_cv_inline="inline"))))
    285 AC_MSG_RESULT($ljt_cv_inline)
    286 AC_DEFINE_UNQUOTED([INLINE],[$ljt_cv_inline],[How to obtain function inlining.])
    287 
    288 # Arithmetic coding support
    289 AC_MSG_CHECKING([whether to include arithmetic encoding support])
    290 AC_ARG_WITH([arith-enc],
    291   AC_HELP_STRING([--without-arith-enc],
    292     [Do not include arithmetic encoding support when emulating the libjpeg v6b API/ABI]))
    293 if test "x$with_12bit" = "xyes"; then
    294   with_arith_enc=no
    295 fi
    296 if test "x${with_jpeg8}" = "xyes" -o "x${with_jpeg7}" = "xyes"; then
    297   with_arith_enc=yes
    298 fi
    299 if test "x$with_arith_enc" = "xno"; then
    300   AC_MSG_RESULT(no)
    301   RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-arith-enc"
    302 else
    303   AC_DEFINE([C_ARITH_CODING_SUPPORTED], [1], [Support arithmetic encoding])
    304   AC_MSG_RESULT(yes)
    305 fi
    306 AM_CONDITIONAL([WITH_ARITH_ENC], [test "x$with_arith_enc" != "xno"])
    307 
    308 AC_MSG_CHECKING([whether to include arithmetic decoding support])
    309 AC_ARG_WITH([arith-dec],
    310   AC_HELP_STRING([--without-arith-dec],
    311     [Do not include arithmetic decoding support when emulating the libjpeg v6b API/ABI]))
    312 if test "x$with_12bit" = "xyes"; then
    313   with_arith_dec=no
    314 fi
    315 if test "x${with_jpeg8}" = "xyes" -o "x${with_jpeg7}" = "xyes"; then
    316   with_arith_dec=yes
    317 fi
    318 if test "x$with_arith_dec" = "xno"; then
    319   AC_MSG_RESULT(no)
    320   RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-arith-dec"
    321 else
    322   AC_DEFINE([D_ARITH_CODING_SUPPORTED], [1], [Support arithmetic decoding])
    323   AC_MSG_RESULT(yes)
    324 fi
    325 AM_CONDITIONAL([WITH_ARITH_DEC], [test "x$with_arith_dec" != "xno"])
    326 
    327 AM_CONDITIONAL([WITH_ARITH],
    328   [test "x$with_arith_dec" != "xno" -o "x$with_arith_enc" != "xno"])
    329 
    330 # 12-bit component support
    331 AC_MSG_CHECKING([whether to use 12-bit samples])
    332 AC_ARG_WITH([12bit],
    333   AC_HELP_STRING([--with-12bit], [Encode/decode JPEG images with 12-bit samples (implies --without-simd --without-turbojpeg --without-arith-dec --without-arith-enc)]))
    334 if test "x$with_12bit" = "xyes"; then
    335   AC_DEFINE([BITS_IN_JSAMPLE], [12], [use 8 or 12])
    336   AC_MSG_RESULT(yes)
    337 else
    338   AC_MSG_RESULT(no)
    339 fi
    340 AM_CONDITIONAL([WITH_12BIT], [test "x$with_12bit" = "xyes"])
    341 
    342 # TurboJPEG support
    343 AC_MSG_CHECKING([whether to build TurboJPEG C wrapper])
    344 AC_ARG_WITH([turbojpeg],
    345   AC_HELP_STRING([--without-turbojpeg],
    346     [Do not include the TurboJPEG wrapper library and associated test programs]))
    347 if test "x$with_12bit" = "xyes"; then
    348   with_turbojpeg=no
    349 fi
    350 if test "x$with_turbojpeg" = "xno"; then
    351   AC_MSG_RESULT(no)
    352   RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-turbojpeg"
    353 else
    354   AC_MSG_RESULT(yes)
    355 fi
    356 
    357 # Java support
    358 AC_ARG_VAR(JAVAC, [Java compiler command (default: javac)])
    359 if test "x$JAVAC" = "x"; then
    360   JAVAC=javac
    361 fi
    362 AC_SUBST(JAVAC)
    363 AC_ARG_VAR(JAVACFLAGS, [Java compiler flags])
    364 AC_SUBST(JAVACFLAGS)
    365 AC_ARG_VAR(JAR, [Java archive command (default: jar)])
    366 if test "x$JAR" = "x"; then
    367   JAR=jar
    368 fi
    369 AC_SUBST(JAR)
    370 AC_ARG_VAR(JAVA, [Java runtime command (default: java)])
    371 if test "x$JAVA" = "x"; then
    372   JAVA=java
    373 fi
    374 AC_SUBST(JAVA)
    375 AC_ARG_VAR(JNI_CFLAGS,
    376   [C compiler flags needed to include jni.h (default: -I/System/Library/Frameworks/JavaVM.framework/Headers on OS X, '-I/usr/java/include -I/usr/java/include/solaris' on Solaris, and '-I/usr/java/default/include -I/usr/java/default/include/linux' on Linux)])
    377 
    378 AC_MSG_CHECKING([whether to build TurboJPEG Java wrapper])
    379 AC_ARG_WITH([java],
    380   AC_HELP_STRING([--with-java], [Build Java wrapper for the TurboJPEG library]))
    381 if test "x$with_12bit" = "xyes" -o "x$with_turbojpeg" = "xno"; then
    382   with_java=no
    383 fi
    384 
    385 WITH_JAVA=0
    386 if test "x$with_java" = "xyes"; then
    387   AC_MSG_RESULT(yes)
    388 
    389   case $host_os in
    390     darwin*)
    391       DEFAULT_JNI_CFLAGS=-I/System/Library/Frameworks/JavaVM.framework/Headers
    392       ;;
    393     solaris*)
    394       DEFAULT_JNI_CFLAGS='-I/usr/java/include -I/usr/java/include/solaris'
    395       ;;
    396     linux*)
    397       DEFAULT_JNI_CFLAGS='-I/usr/java/default/include -I/usr/java/default/include/linux'
    398       ;;
    399   esac
    400   if test "x$JNI_CFLAGS" = "x"; then
    401     JNI_CFLAGS=$DEFAULT_JNI_CFLAGS
    402   fi
    403 
    404   SAVE_CPPFLAGS=${CPPFLAGS}
    405   CPPFLAGS="${CPPFLAGS} ${JNI_CFLAGS}"
    406   AC_CHECK_HEADERS([jni.h], [DUMMY=1],
    407     [AC_MSG_ERROR([Could not find JNI header file])])
    408   CPPFLAGS=${SAVE_CPPFLAGS}
    409   AC_SUBST(JNI_CFLAGS)
    410 
    411   RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --with-java"
    412   JAVA_RPM_CONTENTS_1='%dir %{_datadir}/classes'
    413   JAVA_RPM_CONTENTS_2=%{_datadir}/classes/turbojpeg.jar
    414   WITH_JAVA=1
    415 else
    416   AC_MSG_RESULT(no)
    417 fi
    418 AM_CONDITIONAL([WITH_JAVA], [test "x$with_java" = "xyes"])
    419 AC_SUBST(WITH_JAVA)
    420 AC_SUBST(JAVA_RPM_CONTENTS_1)
    421 AC_SUBST(JAVA_RPM_CONTENTS_2)
    422 
    423 # optionally force using gas-preprocessor.pl for compatibility testing
    424 AC_ARG_WITH([gas-preprocessor],
    425   AC_HELP_STRING([--with-gas-preprocessor],
    426     [Force using gas-preprocessor.pl on ARM.]))
    427 if test "x${with_gas_preprocessor}" = "xyes"; then
    428   case $host_os in
    429     darwin*)
    430       CCAS="gas-preprocessor.pl -fix-unreq $CC"
    431       ;;
    432     *)
    433       CCAS="gas-preprocessor.pl -no-fix-unreq $CC"
    434       ;;
    435   esac
    436   AC_SUBST([CCAS])
    437 fi
    438 
    439 # SIMD is optional
    440 AC_ARG_WITH([simd],
    441   AC_HELP_STRING([--without-simd], [Do not include SIMD extensions]))
    442 if test "x$with_12bit" = "xyes"; then
    443   with_simd=no
    444 fi
    445 if test "x${with_simd}" != "xno"; then
    446   require_simd=no
    447   if test "x${with_simd}" = "xyes"; then
    448     require_simd=yes
    449   fi
    450   # Check if we're on a supported CPU
    451   AC_MSG_CHECKING([if we have SIMD optimisations for cpu type])
    452   case "$host_cpu" in
    453     x86_64 | amd64)
    454       AC_MSG_RESULT([yes (x86_64)])
    455       AC_PROG_NASM
    456       simd_arch=x86_64
    457       ;;
    458     i*86 | x86 | ia32)
    459       AC_MSG_RESULT([yes (i386)])
    460       AC_PROG_NASM
    461       simd_arch=i386
    462       ;;
    463     arm*)
    464       AC_MSG_RESULT([yes (arm)])
    465       AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
    466       AC_CHECK_COMPATIBLE_ARM_ASSEMBLER_IFELSE(
    467         [if test "x$ac_use_gas_preprocessor" = "xyes"; then
    468            AC_MSG_RESULT([yes (with gas-preprocessor)])
    469          else
    470            AC_MSG_RESULT([yes])
    471          fi
    472          simd_arch=arm],
    473         [AC_MSG_RESULT([no])
    474          with_simd=no])
    475       if test "x${with_simd}" = "xno"; then
    476         if test "x${require_simd}" = "xyes"; then
    477           AC_MSG_ERROR([SIMD support can't be enabled.])
    478         else
    479           AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
    480         fi
    481       fi
    482       ;;
    483     aarch64*)
    484       AC_MSG_RESULT([yes (arm64)])
    485       AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
    486       AC_CHECK_COMPATIBLE_ARM64_ASSEMBLER_IFELSE(
    487         [if test "x$ac_use_gas_preprocessor" = "xyes"; then
    488            AC_MSG_RESULT([yes (with gas-preprocessor)])
    489          else
    490            AC_MSG_RESULT([yes])
    491          fi
    492          simd_arch=aarch64],
    493         [AC_MSG_RESULT([no])
    494          with_simd=no])
    495       if test "x${with_simd}" = "xno"; then
    496         if test "x${require_simd}" = "xyes"; then
    497           AC_MSG_ERROR([SIMD support can't be enabled.])
    498         else
    499           AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
    500         fi
    501       fi
    502       ;;
    503     mips*)
    504       AC_MSG_RESULT([yes (mips)])
    505       AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
    506       AC_CHECK_COMPATIBLE_MIPS_ASSEMBLER_IFELSE(
    507         [AC_MSG_RESULT([yes])
    508          simd_arch=mips],
    509         [AC_MSG_RESULT([no])
    510          with_simd=no])
    511       if test "x${with_simd}" = "xno"; then
    512         if test "x${require_simd}" = "xyes"; then
    513           AC_MSG_ERROR([SIMD support can't be enabled.])
    514         else
    515           AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
    516         fi
    517       fi
    518       ;;
    519     powerpc*)
    520       AC_MSG_RESULT([yes (powerpc)])
    521       simd_arch=powerpc
    522       ;;
    523     *)
    524       AC_MSG_RESULT([no ("$host_cpu")])
    525       with_simd=no;
    526       if test "x${require_simd}" = "xyes"; then
    527         AC_MSG_ERROR([SIMD support not available for this CPU.])
    528       else
    529         AC_MSG_WARN([SIMD support not available for this CPU.  Performance will suffer.])
    530       fi
    531       ;;
    532   esac
    533 
    534   if test "x${with_simd}" != "xno"; then
    535     AC_DEFINE([WITH_SIMD], [1], [Use accelerated SIMD routines.])
    536   fi
    537 else
    538   RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-simd"
    539 fi
    540 
    541 AM_CONDITIONAL([WITH_SIMD], [test "x$with_simd" != "xno"])
    542 AM_CONDITIONAL([WITH_SSE_FLOAT_DCT], [test "x$simd_arch" = "xx86_64" -o "x$simd_arch" = "xi386"])
    543 AM_CONDITIONAL([SIMD_I386], [test "x$simd_arch" = "xi386"])
    544 AM_CONDITIONAL([SIMD_X86_64], [test "x$simd_arch" = "xx86_64"])
    545 AM_CONDITIONAL([SIMD_ARM], [test "x$simd_arch" = "xarm"])
    546 AM_CONDITIONAL([SIMD_ARM_64], [test "x$simd_arch" = "xaarch64"])
    547 AM_CONDITIONAL([SIMD_MIPS], [test "x$simd_arch" = "xmips"])
    548 AM_CONDITIONAL([SIMD_POWERPC], [test "x$simd_arch" = "xpowerpc"])
    549 AM_CONDITIONAL([X86_64], [test "x$host_cpu" = "xx86_64" -o "x$host_cpu" = "xamd64"])
    550 AM_CONDITIONAL([WITH_TURBOJPEG], [test "x$with_turbojpeg" != "xno"])
    551 AM_CONDITIONAL([CROSS_COMPILING], [test "x$cross_compiling" = "xyes"])
    552 
    553 AC_ARG_VAR(PKGNAME, [distribution package name (default: libjpeg-turbo)])
    554 if test "x$PKGNAME" = "x"; then
    555   PKGNAME=$PACKAGE_NAME
    556 fi
    557 AC_SUBST(PKGNAME)
    558 
    559 case "$host_cpu" in
    560   x86_64)
    561     RPMARCH=x86_64
    562     DEBARCH=amd64
    563     ;;
    564   i*86 | x86 | ia32)
    565     RPMARCH=i386
    566     DEBARCH=i386
    567     ;;
    568   *)
    569     RPMARCH=`uname -m`
    570     DEBARCH=$RPMARCH
    571     ;;
    572 esac
    573 
    574 if test "${docdir}" = ""; then
    575   docdir=${datadir}/doc
    576   AC_SUBST(docdir)
    577 fi
    578 
    579 AC_SUBST(RPMARCH)
    580 AC_SUBST(RPM_CONFIG_ARGS)
    581 AC_SUBST(DEBARCH)
    582 AC_SUBST(BUILD)
    583 AC_DEFINE_UNQUOTED([BUILD], "$BUILD", [libjpeg-turbo build number])
    584 
    585 # NOTE: autoheader automatically modifies the input file of the first
    586 # invocation of AC_CONFIG_HEADERS, so we put config.h first to prevent
    587 # jconfig.h.in from being clobbered.  config.h is used only internally, whereas
    588 # jconfig.h contains macros that are relevant to external programs (macros that
    589 # specify which features were built into the library.)
    590 AC_CONFIG_HEADERS([config.h])
    591 AC_CONFIG_HEADERS([jconfig.h])
    592 AC_CONFIG_HEADERS([jconfigint.h])
    593 AC_CONFIG_FILES([pkgscripts/libjpeg-turbo.spec.tmpl:release/libjpeg-turbo.spec.in])
    594 AC_CONFIG_FILES([pkgscripts/makecygwinpkg.tmpl:release/makecygwinpkg.in])
    595 AC_CONFIG_FILES([pkgscripts/makedpkg.tmpl:release/makedpkg.in])
    596 AC_CONFIG_FILES([pkgscripts/makemacpkg.tmpl:release/makemacpkg.in])
    597 AC_CONFIG_FILES([pkgscripts/uninstall.tmpl:release/uninstall.in])
    598 AC_CONFIG_FILES([pkgscripts/libjpeg.pc:release/libjpeg.pc.in])
    599 AC_CONFIG_FILES([pkgscripts/libturbojpeg.pc:release/libturbojpeg.pc.in])
    600 if test "x$with_turbojpeg" != "xno"; then
    601   AC_CONFIG_FILES([tjbenchtest])
    602 fi
    603 if test "x$with_java" = "xyes"; then
    604   AC_CONFIG_FILES([tjbenchtest.java])
    605   AC_CONFIG_FILES([tjexampletest])
    606 fi
    607 AC_CONFIG_FILES([libjpeg.map])
    608 AC_CONFIG_FILES([Makefile simd/Makefile])
    609 AC_CONFIG_FILES([java/Makefile])
    610 AC_CONFIG_FILES([md5/Makefile])
    611 AC_OUTPUT
    612