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libb2/configure.ac
2019-03-10 15:28:51 +00:00

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AC_PREREQ([2.61])
AC_INIT([libb2], [0.98.1], [contact@blake2.net], [libb2], [https://blake2.net])
AC_CONFIG_SRCDIR([src/blake2b.c])
AC_CONFIG_HEADERS([src/config.h])
AM_INIT_AUTOMAKE([foreign 1.9])
AC_CONFIG_MACRO_DIR([m4])
B2_LIBRARY_VERSION=1:4:0 # interface, revision, age
AC_SUBST(B2_LIBRARY_VERSION)
AC_LANG_C
AC_PROG_CC
AC_PROG_CC_C99
AC_CHECK_FUNCS(explicit_bzero)
AC_CHECK_FUNCS(explicit_memset)
AC_CHECK_FUNCS(memset_s)
AC_CHECK_HEADERS([stddef.h stdint.h stdlib.h string.h])
AC_OPENMP
# AX_FORCEINLINE()
AC_C_BIGENDIAN(
[],
AC_DEFINE(NATIVE_LITTLE_ENDIAN, 1, [machine is little-endian]),
AC_MSG_ERROR(unknown endianness),
AC_MSG_ERROR(universal endianness not supported)
)
# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_TYPE_UINT8_T
# Checks for library functions.
AC_CHECK_FUNCS([memset])
dnl AM_PROG_AR
AC_PROG_LIBTOOL
dnl LT_INIT
AC_ARG_ENABLE(fat,
AC_HELP_STRING([--enable-fat],
[build a fat binary on systems that support it [default=no]]),
[case $enableval in
yes|no) ;;
*) AC_MSG_ERROR([bad value $enableval for --enable-fat, need yes or no]) ;;
esac],
[enable_fat=no]
)
AC_ARG_ENABLE(native,
AC_HELP_STRING([--enable-native],
[build a binary optimized for the CPU found at compile time on systems that support it [default=yes]]),
[case $enableval in
yes|no) ;;
*) AC_MSG_ERROR([bad value $enableval for --enable-native, need yes or no]) ;;
esac],
[enable_native=yes]
)
AX_CHECK_COMPILE_FLAG([-O3], [CFLAGS=-O3])
dnl Not all architectures support -march=native
if test $enable_native == "yes"; then
AX_CHECK_COMPILE_FLAG([-march=native], [], [enable_native=no])
fi
if test $enable_fat == "yes"; then
dnl Fat build needs compiler who knows all the possible instruction sets
AX_CHECK_COMPILE_FLAG([-msse2], [], AC_MSG_ERROR([Compiler does not know -msse2.]))
AX_CHECK_COMPILE_FLAG([-mssse3], [], AC_MSG_ERROR([Compiler does not know -mssse3.]))
AX_CHECK_COMPILE_FLAG([-msse4.1], [], AC_MSG_ERROR([Compiler does not know -msse4.1.]))
AX_CHECK_COMPILE_FLAG([-mavx], [], AC_MSG_ERROR([Compiler does not know -mavx.]))
AX_CHECK_COMPILE_FLAG([-mxop], [], AC_MSG_ERROR([Compiler does not know -mxop.]))
elif test $enable_native == "yes"; then
AX_EXT
CFLAGS="${CFLAGS} -march=native ${SIMD_FLAGS}"
fi
case $host_os in
*mingw*) LDFLAGS="${LDFLAGS} -no-undefined" ;;
esac
AM_CONDITIONAL([USE_FAT], [test "$enable_fat" = "yes"])
dnl Only move away from ref with SSSE3; SSE2 is generally slower
AM_CONDITIONAL([USE_SSE], [test "$ax_cv_have_ssse3_ext" = "yes"])
PKG_INSTALLDIR
AC_CONFIG_FILES([Makefile
src/Makefile
libb2.pc
])
AC_OUTPUT