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################################################################################
# Standard Stuff
################################################################################
AC_INIT(liberasurecode,1.0.7)
AC_GNU_SOURCE
AC_PREREQ([2.61])
AM_INIT_AUTOMAKE([subdir-objects])
LT_INIT # libtool
AC_CONFIG_HEADER(include/config_liberasurecode.h)
AM_MAINTAINER_MODE([disable])
m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])])
AM_SILENT_RULES([yes])
dnl Compiling with per-target flags requires AM_PROG_CC_C_O.
AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_LIBTOOL
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AX_EXT()
################################################################################
# System Headers
################################################################################
dnl Check for C library headers
AC_HEADER_STDC
AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h \
malloc.h memory.h string.h strings.h inttypes.h \
stdint.h ctype.h math.h iconv.h signal.h dlfcn.h \
pthread.h unistd.h limits.h errno.h syslog.h)
AC_CHECK_FUNCS(malloc calloc realloc free openlog)
#################################################################################
# Debug/coverage Options
#################################################################################
AC_ARG_ENABLE([werror],
[ --disable-werror Dont treat compilation warnings as failures],
[case "${enableval}" in
yes) werror=true ;;
no) werror=false ;;
*) AC_MSG_ERROR([bad value ${enableval} for --disable-werror]) ;;
esac],[werror=true])
if test x$werror = xtrue ; then
werror_flag="-Werror"
else
werror_flag=""
fi
AC_ARG_ENABLE([debug],
[ --enable-debug Turn on debugging],
[case "${enableval}" in
yes) debug=true ;;
no) debug=false ;;
*) AC_MSG_ERROR([bad value ${enableval} for --enable-debug]) ;;
esac],[debug=false])
if test x$debug = xtrue ; then
DEBUG=1
CXXFLAGS=""
CFLAGS="-O0 -ggdb -g3 ${werror_flag} -D_GNU_SOURCE=1 -Wall -pedantic -std=c99"
else
DEBUG=0
CXXFLAGS=""
CFLAGS="-O2 -g ${werror_flag} -D_GNU_SOURCE=1 -Wall -pedantic -std=c99 ${CFLAGS}"
fi
AC_ARG_ENABLE([gcov],
[ --enable-gcov Turn on code coverage],
[case "${enableval}" in
yes) gcov=true ;;
no) gcov=false ;;
*) AC_MSG_ERROR([bad value ${enableval} for --enable-gcov]) ;;
esac],[gcov=false])
if test x$gcov = xtrue ; then
AC_CHECK_LIB(gcov, main,
[
GCOV_FLAGS="-fprofile-arcs -ftest-coverage"
GCOV_LDFLAGS="-lgcov"
CXXFLAGS=""
CFLAGS=""
], [
AC_MSG_ERROR([failed to locate gcov library])
])
fi
AC_SUBST(GCOV_FLAGS)
AC_SUBST(GCOV_LDFLAGS)
dnl Expand the sources and objects needed to build the library
AC_SUBST(ac_aux_dir)
AC_SUBST(OBJECTS)
dnl Do CPUID and associated compiler flag checks
SUPPORTED_FLAGS=""
$CC - -E -mmmx </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="-mmmx"
AC_MSG_RESULT([$CC supports -mmmx])
fi
$CC - -E -msse </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="$SUPPORTED_FLAGS -msse"
AC_MSG_RESULT([$CC supports -msse])
fi
$CC - -E -msse2 </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="$SUPPORTED_FLAGS -msse2"
AC_MSG_RESULT([$CC supports -msse2])
fi
$CC - -E -msse3 </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="$SUPPORTED_FLAGS -msse3"
AC_MSG_RESULT([$CC supports -msse3])
fi
$CC - -E -mssse3 </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="$SUPPORTED_FLAGS -mssse3"
AC_MSG_RESULT([$CC supports -mssse3])
fi
$CC - -E -msse4.1 </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="$SUPPORTED_FLAGS -msse4.1"
AC_MSG_RESULT([$CC supports -msse4.1])
fi
$CC - -E -msse4.2 </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="$SUPPORTED_FLAGS -msse4.2"
AC_MSG_RESULT([$CC supports -msse4.2])
fi
$CC - -E -mavx </dev/null >/dev/null 2>&1
if [[ $? == "0" ]]; then
SUPPORTED_FLAGS="$SUPPORTED_FLAGS -mavx"
AC_MSG_RESULT([$CC supports -mavx])
fi
# Detect the SIMD features supported by both the compiler and the CPU
SIMD_FLAGS=""
cat get_flags_from_cpuid.c | sed "s/FLAGSFROMAUTOCONF/${SUPPORTED_FLAGS}/" | $CC -x c -g - -o get_flags_from_cpuid
if [[ -e ./get_flags_from_cpuid ]]; then
chmod 755 get_flags_from_cpuid; ./get_flags_from_cpuid; rm ./get_flags_from_cpuid
if [[ -e compiler_flags ]]; then
SIMD_FLAGS=`cat compiler_flags`
rm -f compiler_flags
else
AC_MSG_WARN([Could not run the CPUID detection program])
fi
else
AC_MSG_WARN([Could not compile the CPUID detection program])
fi
AC_MSG_RESULT([Generating with SIMD flags: $SIMD_FLAGS])
CFLAGS="$CFLAGS $SIMD_FLAGS"
# Certain code may be dependent on 32 vs. 64-bit arch, so add a
# flag for 64-bit
if test "$ac_cv_sizeof_long" -eq 8; then
CFLAGS="$CFLAGS -DARCH_64"
fi
#################################################################################
# Doxygen Documentation
#################################################################################
AC_CHECK_PROG(DOXYGEN, doxygen, true, false)
AM_CONDITIONAL(HAVE_DOXYGEN, $DOXYGEN)
AC_SUBST(HAVE_DOXYGEN)
dnl Let people disable the doxygen stuff.
AC_ARG_ENABLE(doxygen, [ --enable-doxygen Use doxygen to build documentation (default=auto)],
enable_doxygen="$enableval",
enable_doxygen=auto)
if test x$enable_doxygen = xauto ; then
if test x$DOXYGEN = xtrue ; then
enable_doxygen=yes
else
enable_doxygen=no
fi
fi
dnl NOTE: We need to use a separate automake conditional for this
dnl to make this work with the tarballs.
AM_CONDITIONAL(ENABLE_DOXYGEN, test x$enable_doxygen = xyes)
################################################################################
# Output Files
################################################################################
AC_CONFIG_FILES([\
src/builtin/null_code/Makefile \
src/builtin/xor_codes/Makefile \
src/Makefile \
test/Makefile \
doc/Makefile \
Makefile \
erasurecode.pc \
Xorcode.pc
])
AM_CONDITIONAL([HAVE_DOXYGEN], [test -n "$DOXYGEN"])
AM_COND_IF([HAVE_DOXYGEN],
[AC_CONFIG_FILES([doc/doxygen.cfg])])
AC_OUTPUT
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