diff options
| -rw-r--r-- | configure.ac | 109 |
1 files changed, 54 insertions, 55 deletions
diff --git a/configure.ac b/configure.ac index e0bec0882e..e7d14202a7 100644 --- a/configure.ac +++ b/configure.ac @@ -243,27 +243,27 @@ AC_ARG_ENABLE(man, enable_man=yes) AM_CONDITIONAL(ENABLE_MAN, test "$enable_man" != no) -# Enable debug +dnl Enable debug AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug], [use compiler flags and macros suited for debugging (default is no)])], [enable_debug=$enableval], [enable_debug=no]) -# Enable different -fsanitize options +dnl Enable different -fsanitize options AC_ARG_WITH([sanitizers], [AS_HELP_STRING([--with-sanitizers], [comma separated list of extra sanitizers to build with (default is none enabled)])], [use_sanitizers=$withval]) -# Enable gprof profiling +dnl Enable gprof profiling AC_ARG_ENABLE([gprof], [AS_HELP_STRING([--enable-gprof], [use gprof profiling compiler flags (default is no)])], [enable_gprof=$enableval], [enable_gprof=no]) -# Turn warnings into errors +dnl Turn warnings into errors AC_ARG_ENABLE([werror], [AS_HELP_STRING([--enable-werror], [Treat certain compiler warnings as errors (default is no)])], @@ -274,15 +274,15 @@ AC_LANG_PUSH([C++]) AX_CHECK_COMPILE_FLAG([-Werror],[CXXFLAG_WERROR="-Werror"],[CXXFLAG_WERROR=""]) if test "x$enable_debug" = xyes; then - # Clear default -g -O2 flags + dnl Clear default -g -O2 flags if test "x$CXXFLAGS_overridden" = xno; then CXXFLAGS="" fi - # Disable all optimizations + dnl Disable all optimizations AX_CHECK_COMPILE_FLAG([-O0], [[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -O0"]],,[[$CXXFLAG_WERROR]]) - # Prefer -g3, fall back to -g if that is unavailable. + dnl Prefer -g3, fall back to -g if that is unavailable. AX_CHECK_COMPILE_FLAG( [-g3], [[DEBUG_CXXFLAGS="$DEBUG_CXXFLAGS -g3"]], @@ -295,19 +295,19 @@ if test "x$enable_debug" = xyes; then fi if test x$use_sanitizers != x; then - # First check if the compiler accepts flags. If an incompatible pair like - # -fsanitize=address,thread is used here, this check will fail. This will also - # fail if a bad argument is passed, e.g. -fsanitize=undfeined + dnl First check if the compiler accepts flags. If an incompatible pair like + dnl -fsanitize=address,thread is used here, this check will fail. This will also + dnl fail if a bad argument is passed, e.g. -fsanitize=undfeined AX_CHECK_COMPILE_FLAG( [[-fsanitize=$use_sanitizers]], [[SANITIZER_CXXFLAGS=-fsanitize=$use_sanitizers]], [AC_MSG_ERROR([compiler did not accept requested flags])]) - # Some compilers (e.g. GCC) require additional libraries like libasan, - # libtsan, libubsan, etc. Make sure linking still works with the sanitize - # flag. This is a separate check so we can give a better error message when - # the sanitize flags are supported by the compiler but the actual sanitizer - # libs are missing. + dnl Some compilers (e.g. GCC) require additional libraries like libasan, + dnl libtsan, libubsan, etc. Make sure linking still works with the sanitize + dnl flag. This is a separate check so we can give a better error message when + dnl the sanitize flags are supported by the compiler but the actual sanitizer + dnl libs are missing. AX_CHECK_LINK_FLAG( [[-fsanitize=$use_sanitizers]], [[SANITIZER_LDFLAGS=-fsanitize=$use_sanitizers]], @@ -344,9 +344,9 @@ if test "x$CXXFLAGS_overridden" = "xno"; then AX_CHECK_COMPILE_FLAG([-Wredundant-decls],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wredundant-decls"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wunused-variable],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wunused-variable"],,[[$CXXFLAG_WERROR]]) - ## Some compilers (gcc) ignore unknown -Wno-* options, but warn about all - ## unknown options if any other warning is produced. Test the -Wfoo case, and - ## set the -Wno-foo case if it works. + dnl Some compilers (gcc) ignore unknown -Wno-* options, but warn about all + dnl unknown options if any other warning is produced. Test the -Wfoo case, and + dnl set the -Wno-foo case if it works. AX_CHECK_COMPILE_FLAG([-Wunused-parameter],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-unused-parameter"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wself-assign],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-self-assign"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wunused-local-typedef],[NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-unused-local-typedef"],,[[$CXXFLAG_WERROR]]) @@ -361,9 +361,9 @@ enable_shani=no if test "x$use_asm" = "xyes"; then -# Check for optional instruction set support. Enabling these does _not_ imply that all code will -# be compiled with them, rather that specific objects/libs may use them after checking for runtime -# compatibility. +dnl Check for optional instruction set support. Enabling these does _not_ imply that all code will +dnl be compiled with them, rather that specific objects/libs may use them after checking for runtime +dnl compatibility. AX_CHECK_COMPILE_FLAG([-msse4.2],[[SSE42_CXXFLAGS="-msse4.2"]],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-msse4.1],[[SSE41_CXXFLAGS="-msse4.1"]],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-mavx -mavx2],[[AVX2_CXXFLAGS="-mavx -mavx2"]],,[[$CXXFLAG_WERROR]]) @@ -506,8 +506,8 @@ case $host in AC_CHECK_LIB([iphlpapi], [main],, AC_MSG_ERROR(libiphlpapi missing)) AC_CHECK_LIB([crypt32], [main],, AC_MSG_ERROR(libcrypt32 missing)) - # -static is interpreted by libtool, where it has a different meaning. - # In libtool-speak, it's -all-static. + dnl -static is interpreted by libtool, where it has a different meaning. + dnl In libtool-speak, it's -all-static. AX_CHECK_LINK_FLAG([[-static]],[LIBTOOL_APP_LDFLAGS="$LIBTOOL_APP_LDFLAGS -all-static"]) AC_PATH_PROG([MAKENSIS], [makensis], none) @@ -555,8 +555,8 @@ case $host in dnl It's safe to add these paths even if the functionality is disabled by dnl the user (--without-wallet or --without-gui for example). - bdb_prefix=`$BREW --prefix berkeley-db4 2>/dev/null` - qt5_prefix=`$BREW --prefix qt5 2>/dev/null` + bdb_prefix=$($BREW --prefix berkeley-db4 2>/dev/null) + qt5_prefix=$($BREW --prefix qt5 2>/dev/null) if test x$bdb_prefix != x; then CPPFLAGS="$CPPFLAGS -I$bdb_prefix/include" LIBS="$LIBS -L$bdb_prefix/lib" @@ -673,11 +673,11 @@ AC_C_BIGENDIAN dnl Check for pthread compile/link requirements AX_PTHREAD -# The following macro will add the necessary defines to bitcoin-config.h, but -# they also need to be passed down to any subprojects. Pull the results out of -# the cache and add them to CPPFLAGS. +dnl The following macro will add the necessary defines to bitcoin-config.h, but +dnl they also need to be passed down to any subprojects. Pull the results out of +dnl the cache and add them to CPPFLAGS. AC_SYS_LARGEFILE -# detect POSIX or GNU variant of strerror_r +dnl detect POSIX or GNU variant of strerror_r AC_FUNC_STRERROR_R if test x$ac_cv_sys_file_offset_bits != x && @@ -700,12 +700,12 @@ AX_GCC_FUNC_ATTRIBUTE([dllimport]) if test x$use_glibc_compat != xno; then - #glibc absorbed clock_gettime in 2.17. librt (its previous location) is safe to link - #in anyway for back-compat. + dnl glibc absorbed clock_gettime in 2.17. librt (its previous location) is safe to link + dnl in anyway for back-compat. AC_CHECK_LIB([rt],[clock_gettime],, AC_MSG_ERROR(librt missing)) - #__fdelt_chk's params and return type have changed from long unsigned int to long int. - # See which one is present here. + dnl __fdelt_chk's params and return type have changed from long unsigned int to long int. + dnl See which one is present here. AC_MSG_CHECKING(__fdelt_chk type) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#ifdef _FORTIFY_SOURCE #undef _FORTIFY_SOURCE @@ -741,22 +741,22 @@ if test "x$enable_gprof" = xyes; then fi if test x$TARGET_OS != xwindows; then - # All windows code is PIC, forcing it on just adds useless compile warnings + dnl All windows code is PIC, forcing it on just adds useless compile warnings AX_CHECK_COMPILE_FLAG([-fPIC],[PIC_FLAGS="-fPIC"]) fi -# All versions of gcc that we commonly use for building are subject to bug -# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set -# -fstack-reuse=none for all gcc builds. (Only gcc understands this flag) +dnl All versions of gcc that we commonly use for building are subject to bug +dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set +dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag) AX_CHECK_COMPILE_FLAG([-fstack-reuse=none],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"]) if test x$use_hardening != xno; then use_hardening=yes AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"]) AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"]) - # When enable_debug is yes, all optimizations are disabled. - # However, FORTIFY_SOURCE requires that there is some level of optimization, otherwise it does nothing and just creates a compiler warning. - # Since FORTIFY_SOURCE is a no-op without optimizations, do not enable it when enable_debug is yes. + dnl When enable_debug is yes, all optimizations are disabled. + dnl However, FORTIFY_SOURCE requires that there is some level of optimization, otherwise it does nothing and just creates a compiler warning. + dnl Since FORTIFY_SOURCE is a no-op without optimizations, do not enable it when enable_debug is yes. if test x$enable_debug != xyes; then AX_CHECK_PREPROC_FLAG([-D_FORTIFY_SOURCE=2],[ AX_CHECK_PREPROC_FLAG([-U_FORTIFY_SOURCE],[ @@ -788,8 +788,8 @@ fi AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h]) -# FD_ZERO may be dependent on a declaration of memcpy, e.g. in SmartOS -# check that it fails to build without memcpy, then that it builds with +dnl FD_ZERO may be dependent on a declaration of memcpy, e.g. in SmartOS +dnl check that it fails to build without memcpy, then that it builds with AC_MSG_CHECKING(FD_ZERO memcpy dependence) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <cstddef> @@ -827,7 +827,7 @@ AC_CHECK_DECLS([getifaddrs, freeifaddrs],,, ) AC_CHECK_DECLS([strnlen]) -# Check for daemon(3), unrelated to --with-daemon (although used by it) +dnl Check for daemon(3), unrelated to --with-daemon (although used by it) AC_CHECK_DECLS([daemon]) AC_CHECK_DECLS([le16toh, le32toh, le64toh, htole16, htole32, htole64, be16toh, be32toh, be64toh, htobe16, htobe32, htobe64],,, @@ -893,19 +893,19 @@ if test "x$use_thread_local" = xyes || { test "x$use_thread_local" = xauto && te [ case $host in *mingw*) - # mingw32's implementation of thread_local has also been shown to behave - # erroneously under concurrent usage; see: - # https://gist.github.com/jamesob/fe9a872051a88b2025b1aa37bfa98605 + dnl mingw32's implementation of thread_local has also been shown to behave + dnl erroneously under concurrent usage; see: + dnl https://gist.github.com/jamesob/fe9a872051a88b2025b1aa37bfa98605 AC_MSG_RESULT(no) ;; *darwin*) - # TODO enable thread_local on later versions of Darwin where it is - # supported (per https://stackoverflow.com/a/29929949) + dnl TODO enable thread_local on later versions of Darwin where it is + dnl supported (per https://stackoverflow.com/a/29929949) AC_MSG_RESULT(no) ;; *freebsd*) - # FreeBSD's implementation of thread_local is also buggy (per - # https://groups.google.com/d/msg/bsdmailinglist/22ncTZAbDp4/Dii_pII5AwAJ) + dnl FreeBSD's implementation of thread_local is also buggy (per + dnl https://groups.google.com/d/msg/bsdmailinglist/22ncTZAbDp4/Dii_pII5AwAJ) AC_MSG_RESULT(no) ;; *) @@ -921,7 +921,7 @@ if test "x$use_thread_local" = xyes || { test "x$use_thread_local" = xauto && te LDFLAGS="$TEMP_LDFLAGS" fi -# Check for different ways of gathering OS randomness +dnl Check for different ways of gathering OS randomness AC_MSG_CHECKING(for Linux getrandom syscall) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h> #include <sys/syscall.h> @@ -975,7 +975,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h> [ AC_MSG_RESULT(no)] ) -# Check for reduced exports +dnl Check for reduced exports if test x$use_reduce_exports = xyes; then AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],[RE_CXXFLAGS="-fvisibility=hidden"], [AC_MSG_ERROR([Cannot set default symbol visibility. Use --disable-reduce-exports.])]) @@ -987,7 +987,7 @@ AC_LINK_IFELSE( [[ #include <cstdlib> ]], [[ int nErr = std::system(""); ]] )], - [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STD__SYSTEM, 1, Define to 1 if you have the `std::system' function.)], + [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STD__SYSTEM, 1, Define to 1 if std::system is available.)], [ AC_MSG_RESULT(no) ] ) @@ -997,11 +997,10 @@ AC_LINK_IFELSE( [[ ]], [[ int nErr = ::_wsystem(""); ]] )], - [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_WSYSTEM, 1, Define to 1 if you have the `::wsystem' function.)], + [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_WSYSTEM, 1, Define to 1 if ::wsystem is available.)], [ AC_MSG_RESULT(no) ] ) -# Define to 1 if std::system or ::wsystem (Windows) is available AC_DEFINE([HAVE_SYSTEM], [HAVE_STD__SYSTEM || HAVE_WSYSTEM], [std::system or ::wsystem]) LEVELDB_CPPFLAGS= |