Update libjpeg_turbo to 1.4.90 from https://github.com/libjpeg-turbo/

configure.ac

Index: configure.ac
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000000000000000000000000000000000000..d6a3e33eeda55a00cd29fb7aa75ffc125a13e8f2
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,595 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.56])
+AC_INIT([libjpeg-turbo], [1.4.90])
+
+AM_INIT_AUTOMAKE([-Wall foreign dist-bzip2])
+AC_PREFIX_DEFAULT(/opt/libjpeg-turbo)
+
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+# Checks for programs.
+SAVED_CFLAGS=${CFLAGS}
+SAVED_CPPFLAGS=${CPPFLAGS}
+AC_PROG_CPP
+AC_PROG_CC
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+AM_PROG_AS
+AM_PROG_CC_C_O
+AC_PROG_INSTALL
+AC_PROG_LIBTOOL
+AC_PROG_LN_S
+
+AC_ARG_WITH([build-date], [Use custom build string to enable reproducible builds (default: YYMMDD)],
+  [BUILD="$with_build_date"],
+  [BUILD=`date +%Y%m%d`])
+
+PKG_PROG_PKG_CONFIG
+
+# When the prefix is /opt/libjpeg-turbo, we assume that an "official" binary is
+# being created, and thus we install things into specific locations.
+
+old_prefix=${prefix}
+if test "x$prefix" = "xNONE" -a "x$ac_default_prefix" != "x"; then
+  prefix=$ac_default_prefix
+fi
+DATADIR=`eval echo ${datadir}`
+DATADIR=`eval echo $DATADIR`
+if test "$DATADIR" = "/opt/libjpeg-turbo/share"; then
+  datadir='${prefix}'
+fi
+DATADIR=`eval echo ${datarootdir}`
+DATADIR=`eval echo $DATADIR`
+if test "$DATADIR" = "/opt/libjpeg-turbo/share"; then
+  datarootdir='${prefix}'
+fi
+DOCDIR=`eval echo ${docdir}`
+DOCDIR=`eval echo $DOCDIR`
+if test "$DOCDIR" = "/opt/libjpeg-turbo/doc/libjpeg-turbo"; then
+  docdir='${datadir}/doc'
+fi
+
+old_exec_prefix=${exec_prefix}
+if test "x$exec_prefix" = "xNONE"; then
+  exec_prefix=${prefix}
+fi
+
+AC_CHECK_SIZEOF(size_t)
+
+if test "x${libdir}" = 'x${exec_prefix}/lib' -o "x${libdir}" = 'x${prefix}/lib'; then
+  LIBDIR=`eval echo ${libdir}`
+  LIBDIR=`eval echo $LIBDIR`
+  if test "$LIBDIR" = "/opt/libjpeg-turbo/lib"; then
+    case $host_os in
+      darwin*)
+        ;;
+      *)
+        if test "${ac_cv_sizeof_size_t}" = "8"; then
+          libdir='${exec_prefix}/lib64'
+        elif test "${ac_cv_sizeof_size_t}" = "4"; then
+          libdir='${exec_prefix}/lib32'
+        fi
+        ;;
+    esac
+  fi
+fi
+exec_prefix=${old_exec_prefix}
+prefix=${old_prefix}
+
+# Check whether compiler supports pointers to undefined structures
+AC_MSG_CHECKING(whether compiler supports pointers to undefined structures)
+AC_TRY_COMPILE([ typedef struct undefined_structure *undef_struct_ptr; ], ,
+  AC_MSG_RESULT(yes),
+  [AC_MSG_RESULT(no)
+   AC_DEFINE([INCOMPLETE_TYPES_BROKEN], [1],
+     [Compiler does not support pointers to undefined structures.])])
+
+if test "x${GCC}" = "xyes"; then
+  if test "x${SAVED_CFLAGS}" = "x"; then
+    CFLAGS=-O3
+  fi
+  if test "x${SAVED_CPPFLAGS}" = "x"; then
+    CPPFLAGS=-Wall
+  fi
+fi
+
+AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
+if test "x${SUNCC}" = "xyes"; then
+  if test "x${SAVED_CFLAGS}" = "x"; then
+    CFLAGS=-xO5
+  fi
+fi
+
+# Checks for libraries.
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([stddef.h stdlib.h locale.h string.h])
+AC_CHECK_HEADER([sys/types.h],
+  AC_DEFINE([NEED_SYS_TYPES_H], 1, [Define if you need to include <sys/types.h> to get size_t.]))
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+AC_C_CHAR_UNSIGNED
+AC_C_INLINE
+AC_TYPE_SIZE_T
+AC_CHECK_TYPES([unsigned char, unsigned short])
+
+AC_MSG_CHECKING([if right shift is signed])
+AC_TRY_RUN(
+  [#include <stdio.h>
+   int is_shifting_signed (long arg) {
+     long res = arg >> 4;
+
+     if (res == -0x7F7E80CL)
+       return 1; /* right shift is signed */
+
+     /* see if unsigned-shift hack will fix it. */
+     /* we can't just test exact value since it depends on width of long... */
+     res |= (~0L) << (32-4);
+     if (res == -0x7F7E80CL)
+       return 0; /* right shift is unsigned */
+
+     printf("Right shift isn't acting as I expect it to.\n");
+     printf("I fear the JPEG software will not work at all.\n\n");
+     return 0; /* try it with unsigned anyway */
+   }
+   int main (void) {
+     exit(is_shifting_signed(-0x7F7E80B1L));
+   }],
+  [AC_MSG_RESULT(no)
+   AC_DEFINE([RIGHT_SHIFT_IS_UNSIGNED], 1,
+     [Define if your (broken) compiler shifts signed values as if they were unsigned.])],
+  [AC_MSG_RESULT(yes)],
+  [AC_MSG_RESULT(Assuming that right shift is signed on target machine.)])
+
+# Checks for library functions.
+AC_CHECK_FUNCS([memset memcpy], [],
+  [AC_DEFINE([NEED_BSD_STRINGS], 1,
+     [Define if you have BSD-like bzero and bcopy in <strings.h> rather than memset/memcpy in <string.h>.])])
+
+AC_MSG_CHECKING([libjpeg API version])
+AC_ARG_VAR(JPEG_LIB_VERSION, [libjpeg API version (62, 70, or 80)])
+if test "x$JPEG_LIB_VERSION" = "x"; then
+  AC_ARG_WITH([jpeg7],
+    AC_HELP_STRING([--with-jpeg7],
+      [Emulate libjpeg v7 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b.)]))
+  AC_ARG_WITH([jpeg8],
+    AC_HELP_STRING([--with-jpeg8],
+      [Emulate libjpeg v8 API/ABI (this makes libjpeg-turbo backward incompatible with libjpeg v6b.)]))
+  if test "x${with_jpeg8}" = "xyes"; then
+    JPEG_LIB_VERSION=80
+  else
+    if test "x${with_jpeg7}" = "xyes"; then
+      JPEG_LIB_VERSION=70
+    else
+      JPEG_LIB_VERSION=62
+    fi
+  fi
+fi
+JPEG_LIB_VERSION_DECIMAL=`expr $JPEG_LIB_VERSION / 10`.`expr $JPEG_LIB_VERSION % 10`
+AC_SUBST(JPEG_LIB_VERSION_DECIMAL)
+AC_MSG_RESULT([$JPEG_LIB_VERSION_DECIMAL])
+AC_DEFINE_UNQUOTED(JPEG_LIB_VERSION, [$JPEG_LIB_VERSION],
+  [libjpeg API version])
+
+AC_ARG_VAR(SO_MAJOR_VERSION,
+  [Major version of the libjpeg-turbo shared library (default is determined by the API version)])
+AC_ARG_VAR(SO_MINOR_VERSION,
+  [Minor version of the libjpeg-turbo shared library (default is determined by the API version)])
+if test "x$SO_MAJOR_VERSION" = "x"; then
+  case "$JPEG_LIB_VERSION" in
+    62)  SO_MAJOR_VERSION=$JPEG_LIB_VERSION ;;
+    *)   SO_MAJOR_VERSION=`expr $JPEG_LIB_VERSION / 10` ;;
+  esac
+fi
+if test "x$SO_MINOR_VERSION" = "x"; then
+  case "$JPEG_LIB_VERSION" in
+    80)  SO_MINOR_VERSION=2 ;;
+    *)   SO_MINOR_VERSION=0 ;;
+  esac
+fi
+
+RPM_CONFIG_ARGS=
+
+# Memory source/destination managers
+SO_AGE=1
+MEM_SRCDST_FUNCTIONS=
+if test "x${with_jpeg8}" != "xyes"; then
+  AC_MSG_CHECKING([whether to include in-memory source/destination managers])
+  AC_ARG_WITH([mem-srcdst],
+    AC_HELP_STRING([--without-mem-srcdst],
+      [Do not include in-memory source/destination manager functions when emulating the libjpeg v6b or v7 API/ABI]))
+  if test "x$with_mem_srcdst" != "xno"; then
+    AC_MSG_RESULT(yes)
+    AC_DEFINE([MEM_SRCDST_SUPPORTED], [1],
+      [Support in-memory source/destination managers])
+    SO_AGE=2
+    MEM_SRCDST_FUNCTIONS="global:  jpeg_mem_dest;  jpeg_mem_src;";
+  else
+    AC_MSG_RESULT(no)
+    RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-mem-srcdst"
+  fi
+fi
+
+AC_MSG_CHECKING([libjpeg shared library version])
+AC_MSG_RESULT([$SO_MAJOR_VERSION.$SO_AGE.$SO_MINOR_VERSION])
+LIBTOOL_CURRENT=`expr $SO_MAJOR_VERSION + $SO_AGE`
+AC_SUBST(LIBTOOL_CURRENT)
+AC_SUBST(SO_MAJOR_VERSION)
+AC_SUBST(SO_MINOR_VERSION)
+AC_SUBST(SO_AGE)
+AC_SUBST(MEM_SRCDST_FUNCTIONS)
+
+AC_DEFINE_UNQUOTED(LIBJPEG_TURBO_VERSION, [$VERSION], [libjpeg-turbo version])
+
+VERSION_SCRIPT=yes
+AC_ARG_ENABLE([ld-version-script],
+  AS_HELP_STRING([--disable-ld-version-script],
+    [Disable linker version script for libjpeg-turbo (default is to use linker version script if the linker supports it)]),
+  [VERSION_SCRIPT=$enableval], [])
+
+AC_MSG_CHECKING([whether the linker supports version scripts])
+SAVED_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS -Wl,--version-script,conftest.map"
+cat > conftest.map <<EOF
+VERS_1 {
+  global: *;
+};
+EOF
+AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
+  [VERSION_SCRIPT_FLAG=-Wl,--version-script,;
+   AC_MSG_RESULT([yes (GNU style)])],
+  [])
+if test "x$VERSION_SCRIPT_FLAG" = "x"; then
+  LDFLAGS="$SAVED_LDFLAGS -Wl,-M,conftest.map"
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
+    [VERSION_SCRIPT_FLAG=-Wl,-M,;
+     AC_MSG_RESULT([yes (Sun style)])],
+    [])
+fi
+if test "x$VERSION_SCRIPT_FLAG" = "x"; then
+  VERSION_SCRIPT=no
+  AC_MSG_RESULT(no)
+fi
+LDFLAGS="$SAVED_LDFLAGS"
+
+AC_MSG_CHECKING([whether to use version script when building libjpeg-turbo])
+AC_MSG_RESULT($VERSION_SCRIPT)
+
+AM_CONDITIONAL(VERSION_SCRIPT, test "x$VERSION_SCRIPT" = "xyes")
+AC_SUBST(VERSION_SCRIPT_FLAG)
+
+# Check for non-broken inline under various spellings
+AC_MSG_CHECKING(for inline)
+ljt_cv_inline=""
+AC_TRY_COMPILE(, [} inline __attribute__((always_inline)) int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="inline __attribute__((always_inline))",
+AC_TRY_COMPILE(, [} __inline__ int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="__inline__",
+AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="__inline",
+AC_TRY_COMPILE(, [} inline int foo() { return 0; }
+int bar() { return foo();], ljt_cv_inline="inline"))))
+AC_MSG_RESULT($ljt_cv_inline)
+AC_DEFINE_UNQUOTED([INLINE],[$ljt_cv_inline],[How to obtain function inlining.])
+
+# Arithmetic coding support
+AC_MSG_CHECKING([whether to include arithmetic encoding support])
+AC_ARG_WITH([arith-enc],
+  AC_HELP_STRING([--without-arith-enc],
+    [Do not include arithmetic encoding support]))
+if test "x$with_12bit" = "xyes"; then
+  with_arith_enc=no
+fi
+if test "x$with_arith_enc" = "xno"; then
+  AC_MSG_RESULT(no)
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-arith-enc"
+else
+  AC_DEFINE([C_ARITH_CODING_SUPPORTED], [1], [Support arithmetic encoding])
+  AC_MSG_RESULT(yes)
+fi
+AM_CONDITIONAL([WITH_ARITH_ENC], [test "x$with_arith_enc" != "xno"])
+
+AC_MSG_CHECKING([whether to include arithmetic decoding support])
+AC_ARG_WITH([arith-dec],
+  AC_HELP_STRING([--without-arith-dec],
+    [Do not include arithmetic decoding support]))
+if test "x$with_12bit" = "xyes"; then
+  with_arith_dec=no
+fi
+if test "x$with_arith_dec" = "xno"; then
+  AC_MSG_RESULT(no)
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-arith-dec"
+else
+  AC_DEFINE([D_ARITH_CODING_SUPPORTED], [1], [Support arithmetic decoding])
+  AC_MSG_RESULT(yes)
+fi
+AM_CONDITIONAL([WITH_ARITH_DEC], [test "x$with_arith_dec" != "xno"])
+
+AM_CONDITIONAL([WITH_ARITH],
+  [test "x$with_arith_dec" != "xno" -o "x$with_arith_enc" != "xno"])
+
+# 12-bit component support
+AC_MSG_CHECKING([whether to use 12-bit samples])
+AC_ARG_WITH([12bit],
+  AC_HELP_STRING([--with-12bit], [Encode/decode JPEG images with 12-bit samples (implies --without-simd --without-turbojpeg --without-arith-dec --without-arith-enc)]))
+if test "x$with_12bit" = "xyes"; then
+  AC_DEFINE([BITS_IN_JSAMPLE], [12], [use 8 or 12])
+  AC_MSG_RESULT(yes)
+else
+  AC_MSG_RESULT(no)
+fi
+AM_CONDITIONAL([WITH_12BIT], [test "x$with_12bit" = "xyes"])
+
+# TurboJPEG support
+AC_MSG_CHECKING([whether to build TurboJPEG C wrapper])
+AC_ARG_WITH([turbojpeg],
+  AC_HELP_STRING([--without-turbojpeg],
+    [Do not include the TurboJPEG wrapper library and associated test programs]))
+if test "x$with_12bit" = "xyes"; then
+  with_turbojpeg=no
+fi
+if test "x$with_turbojpeg" = "xno"; then
+  AC_MSG_RESULT(no)
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-turbojpeg"
+else
+  AC_MSG_RESULT(yes)
+fi
+
+# Java support
+AC_ARG_VAR(JAVAC, [Java compiler command (default: javac)])
+if test "x$JAVAC" = "x"; then
+  JAVAC=javac
+fi
+AC_SUBST(JAVAC)
+AC_ARG_VAR(JAVACFLAGS, [Java compiler flags])
+AC_SUBST(JAVACFLAGS)
+AC_ARG_VAR(JAR, [Java archive command (default: jar)])
+if test "x$JAR" = "x"; then
+  JAR=jar
+fi
+AC_SUBST(JAR)
+AC_ARG_VAR(JAVA, [Java runtime command (default: java)])
+if test "x$JAVA" = "x"; then
+  JAVA=java
+fi
+AC_SUBST(JAVA)
+AC_ARG_VAR(JNI_CFLAGS,
+  [C compiler flags needed to include jni.h (default: -I/System/Library/Frameworks/JavaVM.framework/Headers on OS X, '-I/usr/java/include -I/usr/java/include/solaris' on Solaris, and '-I/usr/java/default/include -I/usr/java/default/include/linux' on Linux)])
+
+AC_MSG_CHECKING([whether to build TurboJPEG Java wrapper])
+AC_ARG_WITH([java],
+  AC_HELP_STRING([--with-java], [Build Java wrapper for the TurboJPEG library]))
+if test "x$with_12bit" = "xyes" -o "x$with_turbojpeg" = "xno"; then
+  with_java=no
+fi
+
+WITH_JAVA=0
+if test "x$with_java" = "xyes"; then
+  AC_MSG_RESULT(yes)
+
+  case $host_os in
+    darwin*)
+      DEFAULT_JNI_CFLAGS=-I/System/Library/Frameworks/JavaVM.framework/Headers
+      ;;
+    solaris*)
+      DEFAULT_JNI_CFLAGS='-I/usr/java/include -I/usr/java/include/solaris'
+      ;;
+    linux*)
+      DEFAULT_JNI_CFLAGS='-I/usr/java/default/include -I/usr/java/default/include/linux'
+      ;;
+  esac
+  if test "x$JNI_CFLAGS" = "x"; then
+    JNI_CFLAGS=$DEFAULT_JNI_CFLAGS
+  fi
+
+  SAVE_CPPFLAGS=${CPPFLAGS}
+  CPPFLAGS="${CPPFLAGS} ${JNI_CFLAGS}"
+  AC_CHECK_HEADERS([jni.h], [DUMMY=1],
+    [AC_MSG_ERROR([Could not find JNI header file])])
+  CPPFLAGS=${SAVE_CPPFLAGS}
+  AC_SUBST(JNI_CFLAGS)
+
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --with-java"
+  JAVA_RPM_CONTENTS_1='%dir %{_datadir}/classes'
+  JAVA_RPM_CONTENTS_2=%{_datadir}/classes/turbojpeg.jar
+  WITH_JAVA=1
+else
+  AC_MSG_RESULT(no)
+fi
+AM_CONDITIONAL([WITH_JAVA], [test "x$with_java" = "xyes"])
+AC_SUBST(WITH_JAVA)
+AC_SUBST(JAVA_RPM_CONTENTS_1)
+AC_SUBST(JAVA_RPM_CONTENTS_2)
+
+# optionally force using gas-preprocessor.pl for compatibility testing
+AC_ARG_WITH([gas-preprocessor],
+  AC_HELP_STRING([--with-gas-preprocessor],
+    [Force using gas-preprocessor.pl on ARM.]))
+if test "x${with_gas_preprocessor}" = "xyes"; then
+  case $host_os in
+    darwin*)
+      CCAS="gas-preprocessor.pl -fix-unreq $CC"
+      ;;
+    *)
+      CCAS="gas-preprocessor.pl -no-fix-unreq $CC"
+      ;;
+  esac
+  AC_SUBST([CCAS])
+fi
+
+# SIMD is optional
+AC_ARG_WITH([simd],
+  AC_HELP_STRING([--without-simd], [Do not include SIMD extensions]))
+if test "x$with_12bit" = "xyes"; then
+  with_simd=no
+fi
+if test "x${with_simd}" != "xno"; then
+  require_simd=no
+  if test "x${with_simd}" = "xyes"; then
+    require_simd=yes
+  fi
+  # Check if we're on a supported CPU
+  AC_MSG_CHECKING([if we have SIMD optimisations for cpu type])
+  case "$host_cpu" in
+    x86_64 | amd64)
+      AC_MSG_RESULT([yes (x86_64)])
+      AC_PROG_NASM
+      simd_arch=x86_64
+      ;;
+    i*86 | x86 | ia32)
+      AC_MSG_RESULT([yes (i386)])
+      AC_PROG_NASM
+      simd_arch=i386
+      ;;
+    arm*)
+      AC_MSG_RESULT([yes (arm)])
+      AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
+      AC_CHECK_COMPATIBLE_ARM_ASSEMBLER_IFELSE(
+        [if test "x$ac_use_gas_preprocessor" = "xyes"; then
+           AC_MSG_RESULT([yes (with gas-preprocessor)])
+         else
+           AC_MSG_RESULT([yes])
+         fi
+         simd_arch=arm],
+        [AC_MSG_RESULT([no])
+         with_simd=no])
+      if test "x${with_simd}" = "xno"; then
+        if test "x${require_simd}" = "xyes"; then
+          AC_MSG_ERROR([SIMD support can't be enabled.])
+        else
+          AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
+        fi
+      fi
+      ;;
+    aarch64*)
+      AC_MSG_RESULT([yes (arm64)])
+      AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
+      AC_CHECK_COMPATIBLE_ARM64_ASSEMBLER_IFELSE(
+        [if test "x$ac_use_gas_preprocessor" = "xyes"; then
+           AC_MSG_RESULT([yes (with gas-preprocessor)])
+         else
+           AC_MSG_RESULT([yes])
+         fi
+         simd_arch=aarch64],
+        [AC_MSG_RESULT([no])
+         with_simd=no])
+      if test "x${with_simd}" = "xno"; then
+        if test "x${require_simd}" = "xyes"; then
+          AC_MSG_ERROR([SIMD support can't be enabled.])
+        else
+          AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
+        fi
+      fi
+      ;;
+    mips*)
+      AC_MSG_RESULT([yes (mips)])
+      AC_MSG_CHECKING([if the assembler is GNU-compatible and can be used])
+      AC_CHECK_COMPATIBLE_MIPS_ASSEMBLER_IFELSE(
+        [AC_MSG_RESULT([yes])
+         simd_arch=mips],
+        [AC_MSG_RESULT([no])
+         with_simd=no])
+      if test "x${with_simd}" = "xno"; then
+        if test "x${require_simd}" = "xyes"; then
+          AC_MSG_ERROR([SIMD support can't be enabled.])
+        else
+          AC_MSG_WARN([SIMD support can't be enabled.  Performance will suffer.])
+        fi
+      fi
+      ;;
+    powerpc*)
+      AC_MSG_RESULT([yes (powerpc)])
+      simd_arch=powerpc
+      ;;
+    *)
+      AC_MSG_RESULT([no ("$host_cpu")])
+      with_simd=no;
+      if test "x${require_simd}" = "xyes"; then
+        AC_MSG_ERROR([SIMD support not available for this CPU.])
+      else
+        AC_MSG_WARN([SIMD support not available for this CPU.  Performance will suffer.])
+      fi
+      ;;
+  esac
+
+  if test "x${with_simd}" != "xno"; then
+    AC_DEFINE([WITH_SIMD], [1], [Use accelerated SIMD routines.])
+  fi
+else
+  RPM_CONFIG_ARGS="$RPM_CONFIG_ARGS --without-simd"
+fi
+
+AM_CONDITIONAL([WITH_SIMD], [test "x$with_simd" != "xno"])
+AM_CONDITIONAL([WITH_SSE_FLOAT_DCT], [test "x$simd_arch" = "xx86_64" -o "x$simd_arch" = "xi386"])
+AM_CONDITIONAL([SIMD_I386], [test "x$simd_arch" = "xi386"])
+AM_CONDITIONAL([SIMD_X86_64], [test "x$simd_arch" = "xx86_64"])
+AM_CONDITIONAL([SIMD_ARM], [test "x$simd_arch" = "xarm"])
+AM_CONDITIONAL([SIMD_ARM_64], [test "x$simd_arch" = "xaarch64"])
+AM_CONDITIONAL([SIMD_MIPS], [test "x$simd_arch" = "xmips"])
+AM_CONDITIONAL([SIMD_POWERPC], [test "x$simd_arch" = "xpowerpc"])
+AM_CONDITIONAL([X86_64], [test "x$host_cpu" = "xx86_64" -o "x$host_cpu" = "xamd64"])
+AM_CONDITIONAL([WITH_TURBOJPEG], [test "x$with_turbojpeg" != "xno"])
+AM_CONDITIONAL([CROSS_COMPILING], [test "x$cross_compiling" = "xyes"])
+
+AC_ARG_VAR(PKGNAME, [distribution package name (default: libjpeg-turbo)])
+if test "x$PKGNAME" = "x"; then
+  PKGNAME=$PACKAGE_NAME
+fi
+AC_SUBST(PKGNAME)
+
+case "$host_cpu" in
+  x86_64)
+    RPMARCH=x86_64
+    DEBARCH=amd64
+    ;;
+  i*86 | x86 | ia32)
+    RPMARCH=i386
+    DEBARCH=i386
+    ;;
+  *)
+    RPMARCH=`uname -m`
+    DEBARCH=$RPMARCH
+    ;;
+esac
+
+if test "${docdir}" = ""; then
+  docdir=${datadir}/doc
+  AC_SUBST(docdir)
+fi
+
+AC_SUBST(RPMARCH)
+AC_SUBST(RPM_CONFIG_ARGS)
+AC_SUBST(DEBARCH)
+AC_SUBST(BUILD)
+AC_DEFINE_UNQUOTED([BUILD], "$BUILD", [libjpeg-turbo build number])
+
+# NOTE: autoheader automatically modifies the input file of the first
+# invocation of AC_CONFIG_HEADERS, so we put config.h first to prevent
+# jconfig.h.in from being clobbered.  config.h is used only internally, whereas
+# jconfig.h contains macros that are relevant to external programs (macros that
+# specify which features were built into the library.)
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_HEADERS([jconfig.h])
+AC_CONFIG_HEADERS([jconfigint.h])
+AC_CONFIG_FILES([pkgscripts/libjpeg-turbo.spec.tmpl:release/libjpeg-turbo.spec.in])
+AC_CONFIG_FILES([pkgscripts/makecygwinpkg.tmpl:release/makecygwinpkg.in])
+AC_CONFIG_FILES([pkgscripts/makedpkg.tmpl:release/makedpkg.in])
+AC_CONFIG_FILES([pkgscripts/makemacpkg.tmpl:release/makemacpkg.in])
+AC_CONFIG_FILES([pkgscripts/uninstall.tmpl:release/uninstall.in])
+AC_CONFIG_FILES([pkgscripts/libjpeg.pc:release/libjpeg.pc.in])
+AC_CONFIG_FILES([pkgscripts/libturbojpeg.pc:release/libturbojpeg.pc.in])
+if test "x$with_turbojpeg" != "xno"; then
+  AC_CONFIG_FILES([tjbenchtest])
+fi
+if test "x$with_java" = "xyes"; then
+  AC_CONFIG_FILES([tjbenchtest.java])
+  AC_CONFIG_FILES([tjexampletest])
+fi
+AC_CONFIG_FILES([libjpeg.map])
+AC_CONFIG_FILES([Makefile simd/Makefile])
+AC_CONFIG_FILES([java/Makefile])
+AC_CONFIG_FILES([md5/Makefile])
+AC_OUTPUT