AC_PREREQ([2.65]) AC_INIT([libsodium],[1.0.16], [https://github.com/jedisct1/libsodium/issues], [libsodium], [https://github.com/jedisct1/libsodium]) AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_MACRO_DIR([m4]) AC_CONFIG_SRCDIR([src/libsodium/sodium/version.c]) AC_CANONICAL_HOST AM_INIT_AUTOMAKE([1.11 dist-bzip2 tar-ustar foreign subdir-objects]) m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AM_MAINTAINER_MODE AM_DEP_TRACK AC_SUBST(VERSION) ISODATE=`date +%Y-%m-%d` AC_SUBST(ISODATE) SODIUM_LIBRARY_VERSION_MAJOR=10 SODIUM_LIBRARY_VERSION_MINOR=1 DLL_VERSION=8 SODIUM_LIBRARY_VERSION=24:0:1 # | | | # +------+ | +---+ # | | | # current:revision:age # | | | # | | +- increment if interfaces have been added # | | set to zero if interfaces have been removed # | | or changed # | +- increment if source code has changed # | set to zero if current is incremented # +- increment if interfaces have been added, removed or changed AC_SUBST(SODIUM_LIBRARY_VERSION_MAJOR) AC_SUBST(SODIUM_LIBRARY_VERSION_MINOR) AC_SUBST(SODIUM_LIBRARY_VERSION) AC_SUBST(DLL_VERSION) AC_LANG_ASSERT(C) LX_CFLAGS=${CFLAGS-NONE} dnl Path check AS_IF([pwd | fgrep ' ' > /dev/null 2>&1], [AC_MSG_ERROR([The build directory contains whitespaces - This can cause tests/installation to fail due to limitations of some libtool versions])] ) dnl Switches AC_ARG_ENABLE(ssp, [AS_HELP_STRING(--disable-ssp,Do not compile with -fstack-protector)], [ AS_IF([test "x$enableval" = "xno"], [ enable_ssp="no" ], [ enable_ssp="yes" ]) ], [ enable_ssp="yes" ]) AC_ARG_ENABLE(asm, [AS_HELP_STRING(--disable-asm,Do not compile assembly code -- This disables all (including non-assembly) platform-specific optimizations on Unix systems)], [ AS_IF([test "x$enableval" = "xno"], [ enable_asm="no" ], [ enable_asm="yes" ]) ], [ enable_asm="yes" ]) AS_IF([test "x$EMSCRIPTEN" != "x"], [ AX_CHECK_COMPILE_FLAG([-s ASSERTIONS=0], [ enable_asm="no" AC_MSG_WARN([compiling to JavaScript - asm implementations disabled]) ], [ AC_MSG_WARN([EMSCRIPTEN environment variable defined, but emcc doesn't appear to be used - Assuming compilation to native code]) CFLAGS="$CFLAGS -U__EMSCRIPTEN__" unset EMSCRIPTEN ]) ]) AS_IF([test "$host_os" = "nacl" -o "$host_os" = "pnacl"], [ enable_asm="no" AC_MSG_WARN([compiling to Native Client - asm implementations disabled]) ]) AC_ARG_ENABLE(pie, [AS_HELP_STRING(--disable-pie,Do not produce position independent executables)], enable_pie=$enableval, enable_pie="maybe") AS_CASE([$host_os], [mingw*|cygwin*|msys], [enable_pie="no"]) AC_ARG_ENABLE(blocking-random, [AS_HELP_STRING(--enable-blocking-random,Enable this switch only if /dev/urandom is totally broken on the target platform)], [ AS_IF([test "x$enableval" = "xyes"], [ AC_DEFINE([USE_BLOCKING_RANDOM], [1], [/dev/urandom is insecure on the target platform]) ]) ]) AC_ARG_ENABLE(minimal, [AS_HELP_STRING(--enable-minimal, [Only compile the minimum set of functions required for the high-level API])], [ AS_IF([test "x$enableval" = "xyes"], [ enable_minimal="yes" SODIUM_LIBRARY_MINIMAL_DEF="#define SODIUM_LIBRARY_MINIMAL 1" AC_DEFINE([MINIMAL], [1], [Define for a minimal build, without deprecated functions and functions that high-level APIs depend on]) ], [ enable_minimal="no" ]) ], [ enable_minimal="no" ]) AM_CONDITIONAL([MINIMAL], [test x$enable_minimal = xyes]) AC_SUBST(SODIUM_LIBRARY_MINIMAL_DEF) AC_ARG_WITH(pthreads, AC_HELP_STRING([--with-pthreads], [use pthreads library, or --without-pthreads to disable threading support.]), [ ], [withval="yes"]) AS_IF([test "x$withval" = "xyes"], [ AX_PTHREAD([ AC_DEFINE([HAVE_PTHREAD], [1], [Define if you have POSIX threads libraries and header files]) with_threads="yes" LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" CC="$PTHREAD_CC"]) ], [with_threads="no"]) AC_ARG_WITH(safecode, [AS_HELP_STRING(--with-safecode,For maintainers only - please do not use)], [AS_IF([test "x$withval" = "xyes"], [ AC_ARG_VAR([SAFECODE_HOME], [set to the safecode base directory]) : ${SAFECODE_HOME:=/opt/safecode} LDFLAGS="$LDFLAGS -L${SAFECODE_HOME}/lib" LIBS="$LIBS -lsc_dbg_rt -lpoolalloc_bitmap -lstdc++" CFLAGS="$CFLAGS -fmemsafety" ]) ]) AC_ARG_WITH(ctgrind, [AS_HELP_STRING(--with-ctgrind,For maintainers only - please do not use)], [AS_IF([test "x$withval" = "xyes"], [ AC_CHECK_LIB(ctgrind, ct_poison) ]) ]) ENABLE_CWFLAGS=no AC_ARG_ENABLE(debug, [AS_HELP_STRING(--enable-debug,For maintainers only - please do not use)], [ AS_IF([test "x$enableval" = "xyes"], [ AS_IF([test "x$LX_CFLAGS" = "xNONE"], [ nxflags="" for flag in `echo $CFLAGS`; do AS_CASE([$flag], [-O*], [ ], [-g*], [ ], [*], [AS_VAR_APPEND([nxflags], [" $flag"])]) done CFLAGS="$nxflags -O -g3" ]) ENABLE_CWFLAGS=yes CPPFLAGS="$CPPFLAGS -DDEBUG=1 -U_FORTIFY_SOURCE" ]) ]) AC_ARG_ENABLE(opt, [AS_HELP_STRING(--enable-opt,Optimize for the native CPU - The resulting library will be faster but not portable)], [ AS_IF([test "x$enableval" = "xyes"], [ AX_CHECK_COMPILE_FLAG([-Ofast], [CFLAGS="$CFLAGS -Ofast"]) AX_CHECK_COMPILE_FLAG([-fomit-frame-pointer], [CFLAGS="$CFLAGS -fomit-frame-pointer"]) AX_CHECK_COMPILE_FLAG([-march=native], [CFLAGS="$CFLAGS -march=native"]) ]) ]) AC_SUBST([MAINT]) AX_VALGRIND_CHECK dnl Checks AC_PROG_CC_C99 AM_PROG_AS AC_USE_SYSTEM_EXTENSIONS AC_C_VARARRAYS AC_CHECK_DEFINE([__native_client__], [NATIVECLIENT="yes"], []) AC_CHECK_DEFINE([_FORTIFY_SOURCE], [], [ AX_CHECK_COMPILE_FLAG([-D_FORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"]) ]) AX_CHECK_COMPILE_FLAG([-fvisibility=hidden], [CFLAGS="$CFLAGS -fvisibility=hidden"]) AS_CASE([$host_os], [cygwin*|mingw*|msys|pw32*|cegcc*], [ ], [ AX_CHECK_COMPILE_FLAG([-fPIC], [CFLAGS="$CFLAGS -fPIC"]) ]) AS_IF([test "$enable_pie" != "no"],[ AX_CHECK_COMPILE_FLAG([-fPIE], [ AX_CHECK_LINK_FLAG([-pie], [ [CFLAGS="$CFLAGS -fPIE" LDFLAGS="$LDFLAGS -pie"] ]) ]) ]) AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"]) AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CFLAGS="$CFLAGS -fno-strict-overflow"], [ AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"]) ]) AS_IF([test "$GCC" = "yes" ], [ AS_CASE([$host_cpu], [i?86|amd64|x86_64], [ AC_COMPILE_IFELSE( [AC_LANG_SOURCE([ #if !defined(__clang__) && defined(__GNUC__) && ((__GNUC__ << 8) | __GNUC_MINOR__) < 0x403 # error old gcc #endif int main(void) { return 0; } ])],,[ AX_CHECK_COMPILE_FLAG([-flax-vector-conversions], [CFLAGS="$CFLAGS -flax-vector-conversions"]) ]) ] ) ]) LIBTOOL_OLD_FLAGS="$LIBTOOL_EXTRA_FLAGS" LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION" AC_ARG_ENABLE(soname-versions, [AC_HELP_STRING([--enable-soname-versions], [enable soname versions (must be disabled for Android) (default: enabled)])], [ AS_IF([test "x$enableval" = "xno"], [ LIBTOOL_EXTRA_FLAGS="$LIBTOOL_OLD_FLAGS -avoid-version" ]) ] ) AS_CASE([$host_os], [cygwin*|mingw*|msys|pw32*|cegcc*], [ AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"]) AX_CHECK_LINK_FLAG([-Wl,--high-entropy-va], [LDFLAGS="$LDFLAGS -Wl,--high-entropy-va"]) AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"]) ]) AS_CASE([$host_os], [cygwin*|mingw*|msys|pw32*|cegcc*], [ AX_CHECK_COMPILE_FLAG([-fno-asynchronous-unwind-tables], [ [CFLAGS="$CFLAGS -fno-asynchronous-unwind-tables"] ]) ]) AS_IF([test "x$enable_ssp" != "xno"],[ AS_CASE([$host_os], [cygwin*|mingw*|msys|pw32*|cegcc*], [ ], [*], [ AX_CHECK_COMPILE_FLAG([-fstack-protector], [ AX_CHECK_LINK_FLAG([-fstack-protector], [CFLAGS="$CFLAGS -fstack-protector"] ) ]) ]) ]) AC_ARG_VAR([CWFLAGS], [define to compilation flags for generating extra warnings]) AX_CHECK_COMPILE_FLAG([$CFLAGS -Wall], [CWFLAGS="$CFLAGS -Wall"]) AX_CHECK_COMPILE_FLAG([$CFLAGS -Wextra], [CWFLAGS="$CFLAGS -Wextra"]) AC_MSG_CHECKING(for clang) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ #ifndef __clang__ #error Not clang #endif ]])], [AC_MSG_RESULT(yes) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-unknown-warning-option], [CWFLAGS="$CWFLAGS -Wno-unknown-warning-option"]) ], [AC_MSG_RESULT(no) ]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wbad-function-cast], [CWFLAGS="$CWFLAGS -Wbad-function-cast"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wcast-qual], [CWFLAGS="$CWFLAGS -Wcast-qual"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wdiv-by-zero], [CWFLAGS="$CWFLAGS -Wdiv-by-zero"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wduplicated-branches], [CWFLAGS="$CWFLAGS -Wduplicated-branches"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wduplicated-cond], [CWFLAGS="$CWFLAGS -Wduplicated-cond"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wfloat-equal], [CWFLAGS="$CWFLAGS -Wfloat-equal"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wformat=2], [CWFLAGS="$CWFLAGS -Wformat=2"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wlogical-op], [CWFLAGS="$CWFLAGS -Wlogical-op"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmaybe-uninitialized], [CWFLAGS="$CWFLAGS -Wmaybe-uninitialized"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmisleading-indentation], [CWFLAGS="$CWFLAGS -Wmisleading-indentation"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmissing-declarations], [CWFLAGS="$CWFLAGS -Wmissing-declarations"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmissing-prototypes], [CWFLAGS="$CWFLAGS -Wmissing-prototypes"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnested-externs], [CWFLAGS="$CWFLAGS -Wnested-externs"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-type-limits], [CWFLAGS="$CWFLAGS -Wno-type-limits"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-unknown-pragmas], [CWFLAGS="$CWFLAGS -Wno-unknown-pragmas"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnormalized=id], [CWFLAGS="$CWFLAGS -Wnormalized=id"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnull-dereference], [CWFLAGS="$CWFLAGS -Wnull-dereference"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wold-style-declaration], [CWFLAGS="$CWFLAGS -Wold-style-declaration"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wpointer-arith], [CWFLAGS="$CWFLAGS -Wpointer-arith"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wredundant-decls], [CWFLAGS="$CWFLAGS -Wredundant-decls"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wrestrict], [CWFLAGS="$CWFLAGS -Wrestrict"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wshorten-64-to-32], [CWFLAGS="$CWFLAGS -Wshorten-64-to-32"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wsometimes-uninitialized], [CWFLAGS="$CWFLAGS -Wsometimes-uninitialized"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wstrict-prototypes], [CWFLAGS="$CWFLAGS -Wstrict-prototypes"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wswitch-enum], [CWFLAGS="$CWFLAGS -Wswitch-enum"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wvariable-decl], [CWFLAGS="$CWFLAGS -Wvariable-decl"]) AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wwrite-strings], [CWFLAGS="$CWFLAGS -Wwrite-strings"]) AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"]) AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"]) AX_CHECK_LINK_FLAG([-Wl,-z,noexecstack], [LDFLAGS="$LDFLAGS -Wl,-z,noexecstack"]) AC_MSG_CHECKING(for a broken clang + AVX512 combination) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ #if !(defined(__AVX512F__) && defined(__clang__) && __clang_major__ < 4) #error Not a broken clang + AVX512 combination #endif ]])], [AC_MSG_RESULT(yes - disabling AVX512 optimizations) AX_CHECK_COMPILE_FLAG([$CFLAGS -mno-avx512f], [CFLAGS="$CFLAGS -mno-avx512f"]) ], [AC_MSG_RESULT(no) ]) AX_CHECK_CATCHABLE_SEGV AX_CHECK_CATCHABLE_ABRT AS_IF([test "x$with_threads" = "xyes"], [ AX_TLS([AC_MSG_RESULT(thread local storage is supported)], [AC_MSG_RESULT(thread local storage is not supported)]) ]) LT_INIT AC_SUBST(LIBTOOL_DEPS) AC_ARG_VAR([AR], [path to the ar utility]) AC_CHECK_TOOL([AR], [ar], [ar]) dnl Checks for headers AS_IF([test "x$EMSCRIPTEN" = "x" -a "$host_os" != "pnacl"], [ oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-mmmx], [CFLAGS="$CFLAGS -mmmx"]) AC_MSG_CHECKING(for MMX instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #pragma GCC target("mmx") #include ]], [[ __m64 x = _mm_setzero_si64(); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_MMINTRIN_H], [1], [mmx is available]) AX_CHECK_COMPILE_FLAG([-mmmx], [CFLAGS_MMX="-mmmx"])], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-msse2], [CFLAGS="$CFLAGS -msse2"]) AC_MSG_CHECKING(for SSE2 instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #pragma GCC target("sse2") #ifndef __SSE2__ # define __SSE2__ #endif #include ]], [[ __m128d x = _mm_setzero_pd(); __m128i z = _mm_srli_epi64(_mm_setzero_si128(), 26); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_EMMINTRIN_H], [1], [sse2 is available]) AX_CHECK_COMPILE_FLAG([-msse2], [CFLAGS_SSE2="-msse2"])], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-msse3], [CFLAGS="$CFLAGS -msse3"]) AC_MSG_CHECKING(for SSE3 instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #pragma GCC target("sse3") #include ]], [[ __m128 x = _mm_addsub_ps(_mm_cvtpd_ps(_mm_setzero_pd()), _mm_cvtpd_ps(_mm_setzero_pd())); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_PMMINTRIN_H], [1], [sse3 is available]) AX_CHECK_COMPILE_FLAG([-msse3], [CFLAGS_SSE3="-msse3"])], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-mssse3], [CFLAGS="$CFLAGS -mssse3"]) AC_MSG_CHECKING(for SSSE3 instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #pragma GCC target("ssse3") #include ]], [[ __m64 x = _mm_abs_pi32(_m_from_int(0)); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_TMMINTRIN_H], [1], [ssse3 is available]) AX_CHECK_COMPILE_FLAG([-mssse3], [CFLAGS_SSSE3="-mssse3"])], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-msse4.1], [CFLAGS="$CFLAGS -msse4.1"]) AC_MSG_CHECKING(for SSE4.1 instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #pragma GCC target("sse4.1") #include ]], [[ __m128i x = _mm_minpos_epu16(_mm_setzero_si128()); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_SMMINTRIN_H], [1], [sse4.1 is available]) AX_CHECK_COMPILE_FLAG([-msse4.1], [CFLAGS_SSE41="-msse4.1"])], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-mavx], [CFLAGS="$CFLAGS -mavx"]) AC_MSG_CHECKING(for AVX instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __native_client__ # error NativeClient detected - Avoiding AVX opcodes #endif #pragma GCC target("avx") #include ]], [[ _mm256_zeroall(); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_AVXINTRIN_H], [1], [AVX is available]) AX_CHECK_COMPILE_FLAG([-mavx], [CFLAGS_AVX="-mavx"])], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-mavx2], [CFLAGS="$CFLAGS -mavx2"]) AC_MSG_CHECKING(for AVX2 instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __native_client__ # error NativeClient detected - Avoiding AVX2 opcodes #endif #pragma GCC target("avx2") #include ]], [[ __m256 x = _mm256_set1_ps(3.14); __m256 y = _mm256_permutevar8x32_ps(x, _mm256_set1_epi32(42)); return _mm256_movemask_ps(_mm256_cmp_ps(x, y, _CMP_NEQ_OQ)); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_AVX2INTRIN_H], [1], [AVX2 is available]) AX_CHECK_COMPILE_FLAG([-mavx2], [CFLAGS_AVX2="-mavx2"]) AC_MSG_CHECKING(if _mm256_broadcastsi128_si256 is correctly defined) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __native_client__ # error NativeClient detected - Avoiding AVX2 opcodes #endif #pragma GCC target("avx2") #include ]], [[ __m256i y = _mm256_broadcastsi128_si256(_mm_setzero_si128()); ]])], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_DEFINE([_mm256_broadcastsi128_si256], [_mm_broadcastsi128_si256], [Define to the local name of _mm256_broadcastsi128_si256])]) ], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-mavx512f], [CFLAGS="$CFLAGS -mavx512f"]) AC_MSG_CHECKING(for AVX512F instructions set) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __native_client__ # error NativeClient detected - Avoiding AVX512F opcodes #endif #pragma GCC target("avx512f") #include ]], [[ __m512i x = _mm512_setzero_epi32(); __m512i y = _mm512_permutexvar_epi64(_mm512_setr_epi64(0, 1, 4, 5, 2, 3, 6, 7), x); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_AVX512FINTRIN_H], [1], [AVX512F is available]) AX_CHECK_COMPILE_FLAG([-mavx512f], [CFLAGS_AVX512F="-mavx512f"])], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-maes], [CFLAGS="$CFLAGS -maes"]) AX_CHECK_COMPILE_FLAG([-mpclmul], [CFLAGS="$CFLAGS -mpclmul"]) AC_MSG_CHECKING(for AESNI instructions set and PCLMULQDQ) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __native_client__ # error NativeClient detected - Avoiding AESNI opcodes #endif #pragma GCC target("aes") #pragma GCC target("pclmul") #include ]], [[ __m128i x = _mm_aesimc_si128(_mm_setzero_si128()); __m128i y = _mm_clmulepi64_si128(_mm_setzero_si128(), _mm_setzero_si128(), 0);]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_WMMINTRIN_H], [1], [aesni is available]) AX_CHECK_COMPILE_FLAG([-maes], [CFLAGS_AESNI="-maes"]) AX_CHECK_COMPILE_FLAG([-mpclmul], [CFLAGS_PCLMUL="-mpclmul"]) ], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" oldcflags="$CFLAGS" AX_CHECK_COMPILE_FLAG([-mrdrnd], [CFLAGS="$CFLAGS -mrdrnd"]) AC_MSG_CHECKING(for RDRAND) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __native_client__ # error NativeClient detected - Avoiding RDRAND opcodes #endif #pragma GCC target("rdrnd") #include ]], [[ unsigned long long x; _rdrand64_step(&x); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_RDRAND], [1], [rdrand is available]) AX_CHECK_COMPILE_FLAG([-mrdrnd], [CFLAGS_RDRAND="-mrdrnd"]) ], [AC_MSG_RESULT(no)]) CFLAGS="$oldcflags" ]) AC_SUBST(CFLAGS_MMX) AC_SUBST(CFLAGS_SSE2) AC_SUBST(CFLAGS_SSE3) AC_SUBST(CFLAGS_SSSE3) AC_SUBST(CFLAGS_SSE41) AC_SUBST(CFLAGS_AVX) AC_SUBST(CFLAGS_AVX2) AC_SUBST(CFLAGS_AVX512F) AC_SUBST(CFLAGS_AESNI) AC_SUBST(CFLAGS_PCLMUL) AC_SUBST(CFLAGS_RDRAND) AC_CHECK_HEADERS([sys/mman.h intrin.h]) AC_MSG_CHECKING([if _xgetbv() is available]) AC_LINK_IFELSE( [AC_LANG_PROGRAM([[ #include ]], [[ (void) _xgetbv(0) ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE__XGETBV], [1], [_xgetbv() is available])], [AC_MSG_RESULT(no)]) dnl Checks for typedefs, structures, and compiler characteristics. AC_C_INLINE AS_CASE([$host_cpu], [i?86|amd64|x86_64], [ac_cv_c_bigendian=no] ) AC_C_BIGENDIAN( AC_DEFINE(NATIVE_BIG_ENDIAN, 1, [machine is bigendian]), AC_DEFINE(NATIVE_LITTLE_ENDIAN, 1, [machine is littleendian]), AC_MSG_ERROR([unknown endianness]), AC_MSG_ERROR([universal endianness is not supported - compile separately and use lipo(1)]) ) AC_MSG_CHECKING(whether __STDC_LIMIT_MACROS is required) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include #include ]], [[ (void) SIZE_MAX; (void) UINT64_MAX; ]])], [AC_MSG_RESULT(no)], [AC_MSG_RESULT(yes) CPPFLAGS="$CPPFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS" ]) HAVE_AMD64_ASM_V=0 AS_IF([test "$enable_asm" != "no"],[ AC_MSG_CHECKING(whether we can use x86_64 asm code) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ #if defined(__amd64) || defined(__amd64__) || defined(__x86_64__) # if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(_WIN32) || defined(_WIN64) # error Windows x86_64 calling conventions are not supported yet # endif /* neat */ #else # error !x86_64 #endif unsigned char i = 0, o = 0, t; __asm__ __volatile__ ("pxor %%xmm12, %%xmm6 \n" "movb (%[i]), %[t] \n" "addb %[t], (%[o]) \n" : [t] "=&r"(t) : [o] "D"(&o), [i] "S"(&i) : "memory", "flags", "cc"); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_AMD64_ASM], [1], [x86_64 asm code can be used]) HAVE_AMD64_ASM_V=1], [AC_MSG_RESULT(no)]) ]) AM_CONDITIONAL([HAVE_AMD64_ASM], [test $HAVE_AMD64_ASM_V = 1]) AC_SUBST(HAVE_AMD64_ASM_V) HAVE_AVX_ASM_V=0 AS_IF([test "$enable_asm" != "no"],[ AC_MSG_CHECKING(whether we can assemble AVX opcodes) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ #if defined(__amd64) || defined(__amd64__) || defined(__x86_64__) # if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(_WIN32) || defined(_WIN64) # error Windows x86_64 calling conventions are not supported yet # endif /* neat */ #else # error !x86_64 #endif __asm__ __volatile__ ("vpunpcklqdq %xmm0,%xmm13,%xmm0"); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_AVX_ASM], [1], [AVX opcodes are supported]) HAVE_AVX_ASM_V=1], [AC_MSG_RESULT(no)]) ]) AM_CONDITIONAL([HAVE_AVX_ASM], [test $HAVE_AVX_ASM_V = 1]) AC_SUBST(HAVE_AVX_ASM_V) AC_MSG_CHECKING(for 128-bit arithmetic) HAVE_TI_MODE_V=0 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #if !defined(__GNUC__) && !defined(__SIZEOF_INT128__) # error mode(TI) is a gcc extension, and __int128 is not available #endif #if defined(__clang__) && !defined(__x86_64__) # error clang does not properly handle the 128-bit type on 32-bit systems #endif #ifndef NATIVE_LITTLE_ENDIAN # error libsodium currently expects a little endian CPU for the 128-bit type #endif #ifdef __EMSCRIPTEN__ # error emscripten currently supports only shift operations on integers \ # larger than 64 bits #endif #include #include #if defined(__SIZEOF_INT128__) typedef unsigned __int128 uint128_t; #else typedef unsigned uint128_t __attribute__((mode(TI))); #endif void fcontract(uint128_t *t) { *t += 0x8000000000000 - 1; } ]], [[ (void) fcontract; ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_TI_MODE], [1], [gcc TI mode is available]) HAVE_TI_MODE_V=1], [AC_MSG_RESULT(no)]) AM_CONDITIONAL([HAVE_TI_MODE], [test $HAVE_TI_MODE_V = 1]) AC_SUBST(HAVE_TI_MODE_V) HAVE_CPUID_V=0 AS_IF([test "$enable_asm" != "no" -o "$host_alias" = "x86_64-nacl"],[ AC_MSG_CHECKING(for cpuid instruction) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ unsigned int cpu_info[4]; __asm__ __volatile__ ("xchgl %%ebx, %k1; cpuid; xchgl %%ebx, %k1" : "=a" (cpu_info[0]), "=&r" (cpu_info[1]), "=c" (cpu_info[2]), "=d" (cpu_info[3]) : "0" (0U), "2" (0U)); ]])], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_CPUID], [1], [cpuid instruction is available]) HAVE_CPUID_V=1], [AC_MSG_RESULT(no)]) ]) AC_SUBST(HAVE_CPUID_V) asm_hide_symbol="unsupported" AS_IF([test "$enable_asm" != "no" -o "$host_os" = "nacl"],[ AC_MSG_CHECKING(if the .private_extern asm directive is supported) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[ __asm__ __volatile__ (".private_extern dummy_symbol \n" ".private_extern _dummy_symbol \n" ".globl dummy_symbol \n" ".globl _dummy_symbol \n" "dummy_symbol: \n" "_dummy_symbol: \n" " nop \n" ); ]])], [AC_MSG_RESULT(yes) asm_hide_symbol=".private_extern"], [AC_MSG_RESULT(no)]) AC_MSG_CHECKING(if the .hidden asm directive is supported) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[ __asm__ __volatile__ (".hidden dummy_symbol \n" ".hidden _dummy_symbol \n" ".globl dummy_symbol \n" ".globl _dummy_symbol \n" "dummy_symbol: \n" "_dummy_symbol: \n" " nop \n" ); ]])], [AC_MSG_RESULT(yes) AS_IF([test "$asm_hide_symbol" = "unsupported"], [asm_hide_symbol=".hidden"], [AC_MSG_NOTICE([unable to reliably tag symbols as private]) asm_hide_symbol="unsupported"]) ], [AC_MSG_RESULT(no)]) AS_IF([test "$asm_hide_symbol" != "unsupported"],[ AC_DEFINE_UNQUOTED([ASM_HIDE_SYMBOL], [$asm_hide_symbol], [directive to hide symbols]) ]) ]) AC_MSG_CHECKING(if weak symbols are supported) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #if !defined(__ELF__) && !defined(__APPLE_CC__) # error Support for weak symbols may not be available #endif __attribute__((weak)) void __dummy(void *x) { } void f(void *x) { __dummy(x); } ]], [[ ]] )], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_WEAK_SYMBOLS], [1], [weak symbols are supported])], [AC_MSG_RESULT(no)]) AC_MSG_CHECKING(if data alignment is required) aligned_access_required=yes AS_CASE([$host_cpu], [i?86|amd64|x86_64|powerpc*|s390*], [aligned_access_required=no], [arm*], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifndef __ARM_FEATURE_UNALIGNED # error data alignment is required #endif ]], [[]])], [aligned_access_required=no], [])] ) AS_IF([test "x$aligned_access_required" = "xyes"], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) AC_DEFINE([CPU_UNALIGNED_ACCESS], [1], [unaligned memory access is supported])]) AC_MSG_CHECKING(if atomic operations are supported) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[ static volatile int _sodium_lock; __sync_lock_test_and_set(&_sodium_lock, 1); __sync_lock_release(&_sodium_lock); ]] )], [AC_MSG_RESULT(yes) AC_DEFINE([HAVE_ATOMIC_OPS], [1], [atomic operations are supported])], [AC_MSG_RESULT(no)]) dnl Checks for functions and headers AC_FUNC_ALLOCA AS_IF([test "x$EMSCRIPTEN" = "x"],[ AC_CHECK_FUNCS([arc4random arc4random_buf]) AC_CHECK_FUNCS([mmap mlock madvise mprotect memset_s explicit_bzero nanosleep]) ]) AC_CHECK_FUNCS([posix_memalign getpid]) AC_SUBST([LIBTOOL_EXTRA_FLAGS]) TEST_LDFLAGS='' AS_IF([test "x$EMSCRIPTEN" != "x"],[ EXEEXT=.js TEST_LDFLAGS='--memory-init-file 0 --pre-js pre.js.inc -s RESERVED_FUNCTION_POINTERS=8' ]) AC_SUBST(TEST_LDFLAGS) AM_CONDITIONAL([EMSCRIPTEN], [test "x$EMSCRIPTEN" != "x"]) AM_CONDITIONAL([NATIVECLIENT], [test "x$NATIVECLIENT" != "x"]) AC_DEFINE([CONFIGURED], [1], [the build system was properly configured]) dnl Libtool. LT_INIT([dlopen]) AC_LIBTOOL_WIN32_DLL gl_LD_OUTPUT_DEF dnl Output. AH_VERBATIM([NDEBUG], [/* Always evaluate assert() calls */ #ifdef NDEBUG #/**/undef/**/ NDEBUG #endif]) AS_IF([test "x$ENABLE_CWFLAGS" = "xyes"], [ CFLAGS="$CFLAGS $CWFLAGS" ]) AC_CONFIG_FILES([Makefile builds/Makefile contrib/Makefile dist-build/Makefile libsodium.pc libsodium-uninstalled.pc msvc-scripts/Makefile src/Makefile src/libsodium/Makefile src/libsodium/include/Makefile src/libsodium/include/sodium/version.h test/default/Makefile test/Makefile ]) AC_OUTPUT