diff --git a/configure.ac b/configure.ac index b7e0e07c..10078107 100644 --- a/configure.ac +++ b/configure.ac @@ -1,598 +1,598 @@ # # Copyright (C) 2010-2024 Red Hat, Inc. All rights reserved. # # Authors: Fabio M. Di Nitto # Federico Simoncelli # # This software licensed under GPL-2.0+ # # -*- Autoconf -*- # Process this file with autoconf to produce a configure script. # AC_PREREQ([2.63]) AC_INIT([kronosnet], m4_esyscmd([build-aux/git-version-gen .tarball-version .gitarchivever]), [devel@lists.kronosnet.org]) # Don't let AC_PROC_CC (invoked by AC_USE_SYSTEM_EXTENSIONS) replace # undefined CFLAGS with -g -O2, overriding our special OPT_CFLAGS. : ${CFLAGS=""} AC_USE_SYSTEM_EXTENSIONS AM_INIT_AUTOMAKE([1.13 dist-bzip2 dist-xz color-tests -Wno-portability subdir-objects]) LT_PREREQ([2.2.6]) # --enable-new-dtags: Use RUNPATH instead of RPATH. # It is necessary to have this done before libtool does linker detection. # See also: https://github.com/kronosnet/kronosnet/issues/107 # --as-needed: Modern systems have builtin ceil() making -lm superfluous but # AC_SEARCH_LIBS can't detect this because it tests with a false prototype AX_CHECK_LINK_FLAG([-Wl,--enable-new-dtags], [AM_LDFLAGS=-Wl,--enable-new-dtags], [AC_MSG_ERROR(["Linker support for --enable-new-dtags is required"])]) AX_CHECK_LINK_FLAG([-Wl,--as-needed], [AM_LDFLAGS="$AM_LDFLAGS -Wl,--as-needed"]) saved_LDFLAGS="$LDFLAGS" LDFLAGS="$AM_LDFLAGS $LDFLAGS" LT_INIT LDFLAGS="$saved_LDFLAGS" AC_CONFIG_MACRO_DIR([m4]) AC_CONFIG_SRCDIR([libknet/handle.c]) AC_CONFIG_HEADERS([config.h]) AC_CANONICAL_HOST AC_LANG([C]) if test "$prefix" = "NONE"; then prefix="/usr" if test "$localstatedir" = "\${prefix}/var"; then localstatedir="/var" fi if test "$libdir" = "\${exec_prefix}/lib"; then if test -e /usr/lib64; then libdir="/usr/lib64" else libdir="/usr/lib" fi fi fi AC_PROG_AWK AC_PROG_GREP AC_PROG_SED AC_PROG_CPP AC_PROG_CC m4_version_prereq([2.70], [:], [AC_PROG_CC_C99]) if test "x$ac_cv_prog_cc_c99" = "xno"; then AC_MSG_ERROR(["C99 support is required"]) fi AC_PROG_LN_S AC_PROG_INSTALL AC_PROG_MAKE_SET PKG_PROG_PKG_CONFIG AC_CHECK_PROGS([VALGRIND_EXEC], [valgrind]) AM_CONDITIONAL([HAS_VALGRIND], [test x$VALGRIND_EXEC != "x"]) AC_CHECK_PROGS([COVBUILD_EXEC], [cov-build]) AM_CONDITIONAL([HAS_COVBUILD], [test x$COVBUILD_EXEC != "x"]) AC_CHECK_PROGS([COVANALYZE_EXEC], [cov-analyze]) AM_CONDITIONAL([HAS_COVANALYZE], [test x$COVANALYZE_EXEC != "x"]) AC_CHECK_PROGS([COVFORMATERRORS_EXEC], [cov-format-errors]) AM_CONDITIONAL([HAS_COVFORMATERRORS], [test x$COVFORMATERRORS_EXEC != "x"]) # KNET_OPTION_DEFINES(stem,type,detection code) # stem: enters name of option, Automake conditional and preprocessor define # type: compress or crypto, determines where the default comes from AC_DEFUN([KNET_OPTION_DEFINES],[ AC_ARG_ENABLE([$2-$1],[AS_HELP_STRING([--disable-$2-$1],[disable libknet $1 support])],, [enable_$2_$1="$enable_$2_all"]) AM_CONDITIONAL([BUILD_]m4_toupper([$2_$1]),[test "x$enable_$2_$1" = xyes]) if test "x$enable_$2_$1" = xyes; then $3 fi AC_DEFINE_UNQUOTED([WITH_]m4_toupper([$2_$1]), [`test "x$enable_$2_$1" != xyes; echo $?`], $1 $2 [built in]) ]) AC_ARG_ENABLE([man], [AS_HELP_STRING([--disable-man],[disable man page creation])],, [ enable_man="yes" ]) AM_CONDITIONAL([BUILD_MAN], [test x$enable_man = xyes]) AC_ARG_ENABLE([libknet-sctp], [AS_HELP_STRING([--disable-libknet-sctp],[disable libknet SCTP support])],, [ enable_libknet_sctp="yes" ]) AM_CONDITIONAL([BUILD_SCTP], [test x$enable_libknet_sctp = xyes]) AC_ARG_ENABLE([functional-tests], [AS_HELP_STRING([--disable-functional-tests],[disable execution of functional tests, useful for old and slow arches])],, [ enable_functional_tests="yes" ]) AM_CONDITIONAL([RUN_FUN_TESTS], [test x$enable_functional_tests = xyes]) AC_ARG_ENABLE([crypto-all], [AS_HELP_STRING([--disable-crypto-all],[disable libknet all crypto modules support])],, [ enable_crypto_all="yes" ]) KNET_OPTION_DEFINES([nss],[crypto],[PKG_CHECK_MODULES([nss], [nss])]) KNET_OPTION_DEFINES([openssl],[crypto],[PKG_CHECK_MODULES([openssl], [libcrypto])]) # use gcry_mac_open to detect if libgcrypt is new enough KNET_OPTION_DEFINES([gcrypt],[crypto],[ PKG_CHECK_MODULES([gcrypt], [libgcrypt >= 1.8.0],, [AC_CHECK_HEADERS([gcrypt.h], [AC_CHECK_LIB([gcrypt], [gcry_mac_open], [AC_SUBST([gcrypt_LIBS], ["-lgcrypt -ldl -lgpg-error"])])], [AC_MSG_ERROR(["missing required gcrypt.h"])])]) ]) AC_ARG_ENABLE([compress-all], [AS_HELP_STRING([--disable-compress-all],[disable libknet all compress modules support])],, [ enable_compress_all="yes" ]) KNET_OPTION_DEFINES([zstd],[compress],[PKG_CHECK_MODULES([libzstd], [libzstd])]) KNET_OPTION_DEFINES([zlib],[compress],[PKG_CHECK_MODULES([zlib], [zlib])]) KNET_OPTION_DEFINES([lz4],[compress],[PKG_CHECK_MODULES([liblz4], [liblz4])]) KNET_OPTION_DEFINES([lzo2],[compress],[ PKG_CHECK_MODULES([lzo2], [lzo2], [# work around broken pkg-config file in v2.10 AC_SUBST([lzo2_CFLAGS],[`echo $lzo2_CFLAGS | sed 's,/lzo *, ,'`])], [AC_CHECK_HEADERS([lzo/lzo1x.h], [AC_CHECK_LIB([lzo2], [lzo1x_decompress_safe], [AC_SUBST([lzo2_LIBS], [-llzo2])])], [AC_MSG_ERROR(["missing required lzo/lzo1x.h header"])])]) ]) KNET_OPTION_DEFINES([lzma],[compress],[PKG_CHECK_MODULES([liblzma], [liblzma])]) KNET_OPTION_DEFINES([bzip2],[compress],[ PKG_CHECK_MODULES([bzip2], [bzip2],, [AC_CHECK_HEADERS([bzlib.h], [AC_CHECK_LIB([bz2], [BZ2_bzBuffToBuffCompress], [AC_SUBST([bzip2_LIBS], [-lbz2])])], [AC_MSG_ERROR(["missing required bzlib.h"])])]) ]) AC_ARG_ENABLE([install-tests], [AS_HELP_STRING([--enable-install-tests],[install tests])],, [ enable_install_tests="no" ]) AM_CONDITIONAL([INSTALL_TESTS], [test x$enable_install_tests = xyes]) AC_ARG_ENABLE([runautogen], [AS_HELP_STRING([--enable-runautogen],[run autogen.sh])],, [ enable_runautogen="no" ]) AM_CONDITIONAL([BUILD_RUNAUTOGEN], [test x$enable_runautogen = xyes]) override_rpm_debuginfo_option="yes" AC_ARG_ENABLE([rpm-debuginfo], [AS_HELP_STRING([--enable-rpm-debuginfo],[build debuginfo packages])],, [ enable_rpm_debuginfo="no", override_rpm_debuginfo_option="no" ]) AM_CONDITIONAL([BUILD_RPM_DEBUGINFO], [test x$enable_rpm_debuginfo = xyes]) AM_CONDITIONAL([OVERRIDE_RPM_DEBUGINFO], [test x$override_rpm_debuginfo_option = xyes]) AC_ARG_ENABLE([libnozzle], [AS_HELP_STRING([--enable-libnozzle],[libnozzle support])],, [ enable_libnozzle="yes" ]) AM_CONDITIONAL([BUILD_LIBNOZZLE], [test x$enable_libnozzle = xyes]) AC_ARG_ENABLE([rust-bindings], [AS_HELP_STRING([--enable-rust-bindings],[rust bindings support])],, [ enable_rust_bindings="no" ]) AM_CONDITIONAL([BUILD_RUST_BINDINGS], [test x$enable_rust_bindings = xyes]) ## local helper functions # this function checks if CC support options passed as # args. Global CPPFLAGS are ignored during this test. cc_supports_flag() { saveCPPFLAGS="$CPPFLAGS" CPPFLAGS="-Werror $@" AC_MSG_CHECKING([whether $CC supports "$@"]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include ], [ #ifdef __USE_FORTIFY_LEVEL printf("%d\n", __USE_FORTIFY_LEVEL) #else printf("hello world\n") #endif ])], [RC=0; AC_MSG_RESULT([yes])], [RC=1; AC_MSG_RESULT([no])]) CPPFLAGS="$saveCPPFLAGS" return $RC } # Checks for libraries. AX_PTHREAD(,[AC_MSG_ERROR([POSIX threads support is required])]) saved_LIBS="$LIBS" LIBS= AC_SEARCH_LIBS([ceil], [m], , [AC_MSG_ERROR([ceil not found])]) AC_SUBST([m_LIBS], [$LIBS]) LIBS= AC_SEARCH_LIBS([clock_gettime], [rt], , [AC_MSG_ERROR([clock_gettime not found])]) AC_SUBST([rt_LIBS], [$LIBS]) LIBS= AC_SEARCH_LIBS([dlopen], [dl dld], , [AC_MSG_ERROR([dlopen not found])]) AC_SUBST([dl_LIBS], [$LIBS]) LIBS="$saved_LIBS" # Check RTLD_DI_ORIGIN (not decalred by musl. glibc has it as an enum so cannot use ifdef) AC_CHECK_DECL([RTLD_DI_ORIGIN], [AC_DEFINE([HAVE_RTLD_DI_ORIGIN], 1, [define when RTLD_DI_ORIGIN is declared])], ,[[#include ]]) # OS detection AC_MSG_CHECKING([for os in ${host_os}]) case "$host_os" in *linux*) AC_DEFINE_UNQUOTED([KNET_LINUX], [1], [Compiling for Linux platform]) AC_MSG_RESULT([Linux]) ;; *bsd*) AC_DEFINE_UNQUOTED([KNET_BSD], [1], [Compiling for BSD platform]) AC_MSG_RESULT([BSD]) ;; *) AC_MSG_ERROR([Unsupported OS? hmmmm]) ;; esac # Checks for header files. AC_CHECK_HEADERS([sys/epoll.h]) AC_CHECK_FUNCS([kevent]) # if neither sys/epoll.h nor kevent are present, we should fail. if test "x$ac_cv_header_sys_epoll_h" = xno && test "x$ac_cv_func_kevent" = xno; then AC_MSG_ERROR([Both epoll and kevent unavailable on this OS]) fi if test "x$ac_cv_header_sys_epoll_h" = xyes && test "x$ac_cv_func_kevent" = xyes; then AC_MSG_ERROR([Both epoll and kevent available on this OS, please contact the maintainers to fix the code]) fi if test "x$enable_libknet_sctp" = xyes; then AC_CHECK_HEADERS([netinet/sctp.h],, [AC_MSG_ERROR(["missing required SCTP headers"])]) fi # Checks for typedefs, structures, and compiler characteristics. AC_C_INLINE AC_TYPE_PID_T AC_TYPE_SIZE_T AC_TYPE_SSIZE_T AC_TYPE_UINT8_T AC_TYPE_UINT16_T AC_TYPE_UINT32_T AC_TYPE_UINT64_T AC_TYPE_INT8_T AC_TYPE_INT16_T AC_TYPE_INT32_T AC_TYPE_INT64_T PKG_CHECK_MODULES([libqb], [libqb]) if test "x$enable_man" = "xyes"; then AC_ARG_VAR([DOXYGEN], [override doxygen executable]) AC_CHECK_PROGS([DOXYGEN], [doxygen], [no]) if test "x$DOXYGEN" = xno; then AC_MSG_ERROR(["Doxygen command not found"]) fi AC_ARG_VAR([DOXYGEN2MAN], [override doxygen2man executable]) # required to detect doxygen2man when libqb is installed # in non standard paths saved_PKG_CONFIG="$PKG_CONFIG" saved_ac_cv_path_PKG_CONFIG="$ac_cv_path_PKG_CONFIG" unset PKG_CONFIG ac_cv_path_PKG_CONFIG AC_PATH_PROG([PKG_CONFIG], [pkg-config]) PKG_CHECK_MODULES([libqb_BUILD], [libqb]) PKG_CHECK_VAR([libqb_BUILD_PREFIX], [libqb], [prefix]) AC_PATH_PROG([DOXYGEN2MAN], [doxygen2man], [no], [$libqb_BUILD_PREFIX/bin$PATH_SEPARATOR$PATH]) PKG_CONFIG="$saved_PKG_CONFIG" ac_cv_path_PKG_CONFIG="$saved_ac_cv_path_PKG_CONFIG" if test "x$DOXYGEN2MAN" = "xno"; then AC_MSG_ERROR(["doxygen2man command not found"]) fi AC_SUBST([DOXYGEN2MAN]) fi # check for rust tools to build bindings if test "x$enable_rust_bindings" = "xyes"; then AC_PATH_PROG([CARGO], [cargo], [no]) if test "x$CARGO" = xno; then AC_MSG_ERROR(["cargo command not found"]) fi AC_PATH_PROG([RUSTC], [rustc], [no]) if test "x$RUSTC" = xno; then AC_MSG_ERROR(["rustc command not found"]) fi AC_PATH_PROG([RUSTDOC], [rustdoc], [no]) if test "x$RUSTDOC" = xno; then AC_MSG_ERROR(["rustdoc command not found"]) fi AC_PATH_PROG([BINDGEN], [bindgen], [no]) if test "x$BINDGEN" = xno; then AC_MSG_ERROR(["bindgen command not found"]) fi AC_PATH_PROG([CLIPPY], [clippy-driver], [no]) if test "x$CLIPPY" = xno; then AC_MSG_ERROR(["clippy-driver command not found"]) fi AC_PATH_PROG([RUSTFMT], [rustfmt], [no]) if test "x$RUSTFMT" = xno; then AC_MSG_ERROR(["rustfmt command not found (optional)"]) fi fi # checks for libnozzle if test "x$enable_libnozzle" = xyes; then if `echo $host_os | grep -q linux`; then PKG_CHECK_MODULES([libnl], [libnl-3.0]) PKG_CHECK_MODULES([libnlroute], [libnl-route-3.0 >= 3.3], [], [PKG_CHECK_MODULES([libnlroute], [libnl-route-3.0 < 3.3], [AC_DEFINE_UNQUOTED([LIBNL3_WORKAROUND], [1], [Enable libnl < 3.3 build workaround])], [])]) fi fi # https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html knetcurrent="2" knetrevision="0" knetage="0" # c:r:a libknetversion="$knetcurrent:$knetrevision:$knetage" # soname derived from c:r:a # use $VERSION as build info https://semver.org/. build info are incremental automatically knetalpha="-alpha1" libknetrustver="$(($knetcurrent - $knetage)).$knetage.$knetrevision$knetalpha+$VERSION" nozzlecurrent="1" nozzlerevision="0" nozzleage="0" libnozzleversion="$nozzlecurrent:$nozzlerevision:$nozzleage" # nozzle is stable for now nozzlealpha="" libnozzlerustver="$(($nozzlecurrent - $nozzleage)).$nozzleage.$nozzlerevision$nozzlealpha+$VERSION" AC_SUBST([libknetversion]) AC_SUBST([libknetrustver]) AC_SUBST([libnozzleversion]) AC_SUBST([libnozzlerustver]) # local options AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug],[enable debug build])]) AC_ARG_ENABLE([onwire-v1-extra-debug], [AS_HELP_STRING([--enable-onwire-v1-extra-debug],[enable onwire protocol v1 extra debug. WARNING: IT BREAKS ONWIRE COMPATIBILITY! DO NOT USE IN PRODUCTION!])]) if test "x${enable_onwire_v1_extra_debug}" = xyes; then AC_DEFINE_UNQUOTED([ONWIRE_V1_EXTRA_DEBUG], [1], [Enable crc32 checksum for data and packets]) fi # for standard crc32 function (used in test suite) PKG_CHECK_MODULES([zlib], [zlib]) AC_ARG_ENABLE([hardening], [AS_HELP_STRING([--disable-hardening],[disable hardening build flags])],, [ enable_hardening="yes" ]) AC_ARG_WITH([sanitizers], [AS_HELP_STRING([--with-sanitizers=...,...], [enable SANitizer build, do *NOT* use for production. Only ASAN/UBSAN/TSAN are currently supported])], [ SANITIZERS="$withval" ], [ SANITIZERS="" ]) AC_ARG_WITH([testdir], [AS_HELP_STRING([--with-testdir=DIR],[path to /usr/lib../kronosnet/tests/ dir where to install the test suite])], [ TESTDIR="$withval" ], [ TESTDIR="$libdir/kronosnet/tests" ]) ## do subst AC_SUBST([TESTDIR]) # debug build stuff if test "x${enable_debug}" = xyes; then AC_DEFINE_UNQUOTED([DEBUG], [1], [Compiling Debugging code]) OPT_CFLAGS="-O0" RUST_FLAGS="" RUST_TARGET_DIR="debug" else OPT_CFLAGS="-O3" RUST_FLAGS="--release" RUST_TARGET_DIR="release" fi # Check for availablility of hardening options annocheck=no if test "x${enable_hardening}" = xyes; then # support only gcc for now if echo $CC | grep -q gcc; then ANNOPLUGIN="-fplugin=annobin" annocheck=yes fi FORTIFY_CFLAGS="" if test "x${enable_debug}" != xyes; then for j in 3 2; do FORTIFY_CFLAGS_TEMP="-D_FORTIFY_SOURCE=$j" if cc_supports_flag "$OPT_CFLAGS $FORTIFY_CFLAGS_TEMP"; then FORTIFY_CFLAGS="$FORTIFY_CFLAGS_TEMP" break fi done fi HARDENING_CFLAGS_ANNOCHECK="$ANNOPLUGIN -fPIC -DPIC -pie -fstack-protector-strong -fexceptions -D_GLIBCXX_ASSERTIONS -Wl,-z,now" HARDENING_CFLAGS="-fstack-clash-protection -fcf-protection=full -mcet -mstackrealign" EXTRA_HARDENING_CFLAGS="" # check for annobin required cflags/ldflags for j in $HARDENING_CFLAGS_ANNOCHECK; do if cc_supports_flag $j; then EXTRA_HARDENING_CFLAGS="$EXTRA_HARDENING_CFLAGS $j" else annocheck=no fi done # check for other hardening cflags/ldflags for j in $HARDENING_CFLAGS; do if cc_supports_flag $j; then EXTRA_HARDENING_CFLAGS="$EXTRA_HARDENING_CFLAGS $j" fi done EXTRA_HARDENING_CFLAGS="$EXTRA_HARDENING_CFLAGS $FORTIFY_CFLAGS" # check if annocheck binary is available if test "x${annocheck}" = xyes; then AC_CHECK_PROGS([ANNOCHECK_EXEC], [annocheck]) if test "x${ANNOCHECK_EXEC}" = x; then annocheck=no fi fi AM_LDFLAGS="$AM_LDFLAGS $EXTRA_HARDENING_CFLAGS" fi if test "x${enable_debug}" = xyes; then annocheck=no fi AM_CONDITIONAL([HAS_ANNOCHECK], [test "x$annocheck" = "xyes"]) # gdb flags if test "x${GCC}" = xyes; then GDB_CFLAGS="-ggdb3" else GDB_CFLAGS="-g" fi # --- ASAN/UBSAN/TSAN (see man gcc) --- # when using SANitizers, we need to pass the -fsanitize.. # to both CFLAGS and LDFLAGS. The CFLAGS/LDFLAGS must be # specified as first in the list or there will be runtime # issues (for example user has to LD_PRELOAD asan for it to work # properly). if test -n "${SANITIZERS}"; then SANITIZERS=$(echo $SANITIZERS | sed -e 's/,/ /g') for SANITIZER in $SANITIZERS; do case $SANITIZER in asan|ASAN) SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=address" SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=address -lasan" AC_CHECK_LIB([asan],[main],,AC_MSG_ERROR([Unable to find libasan])) ;; ubsan|UBSAN) SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=undefined" SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=undefined -lubsan" AC_CHECK_LIB([ubsan],[main],,AC_MSG_ERROR([Unable to find libubsan])) ;; tsan|TSAN) SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=thread" SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=thread -ltsan" AC_CHECK_LIB([tsan],[main],,AC_MSG_ERROR([Unable to find libtsan])) ;; esac done fi -DEFAULT_CFLAGS="-Werror -Wall -Wextra" +DEFAULT_CFLAGS="-Werror -Wall -Wextra -Wno-gnu-folding-constant" # manual overrides # generates too much noise for stub APIs UNWANTED_CFLAGS="-Wno-unused-parameter" AC_SUBST([AM_CFLAGS],["$SANITIZERS_CFLAGS $OPT_CFLAGS $GDB_CFLAGS $DEFAULT_CFLAGS $EXTRA_HARDENING_CFLAGS $UNWANTED_CFLAGS"]) LDFLAGS="$SANITIZERS_LDFLAGS $LDFLAGS" AC_SUBST([AM_LDFLAGS]) AC_SUBST([RUST_FLAGS]) AC_SUBST([RUST_TARGET_DIR]) AX_PROG_DATE AS_IF([test "$ax_cv_prog_date_gnu_date:$ax_cv_prog_date_gnu_utc" = yes:yes], [UTC_DATE_AT="date -u -d@"], [AS_IF([test "x$ax_cv_prog_date_bsd_date" = xyes], [UTC_DATE_AT="date -u -r"], [AC_MSG_ERROR([date utility unable to convert epoch to UTC])])]) AC_SUBST([UTC_DATE_AT]) AC_ARG_VAR([SOURCE_EPOCH],[last modification date of the source]) AC_MSG_NOTICE([trying to determine source epoch]) AC_MSG_CHECKING([for source epoch in \$SOURCE_EPOCH]) AS_IF([test -n "$SOURCE_EPOCH"], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]) AC_MSG_CHECKING([for source epoch in source_epoch file]) AS_IF([test -e "$srcdir/source_epoch"], [read SOURCE_EPOCH <"$srcdir/source_epoch" AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]) AC_MSG_CHECKING([for source epoch baked in by gitattributes export-subst]) SOURCE_EPOCH='$Format:%at$' # template for rewriting by git-archive AS_CASE([$SOURCE_EPOCH], [?Format:*], # was not rewritten [AC_MSG_RESULT([no]) AC_MSG_CHECKING([for source epoch in \$SOURCE_DATE_EPOCH]) AS_IF([test "x$SOURCE_DATE_EPOCH" != x], [SOURCE_EPOCH="$SOURCE_DATE_EPOCH" AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]) AC_MSG_CHECKING([whether git log can provide a source epoch]) SOURCE_EPOCH=f${SOURCE_EPOCH#\$F} # convert into git log --pretty format SOURCE_EPOCH=$(cd "$srcdir" && git log -1 --pretty=${SOURCE_EPOCH%$} 2>/dev/null) AS_IF([test -n "$SOURCE_EPOCH"], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no, using current time and breaking reproducibility]) SOURCE_EPOCH=$(date +%s)])])], [AC_MSG_RESULT([yes])] )]) ]) AC_MSG_NOTICE([using source epoch $($UTC_DATE_AT$SOURCE_EPOCH +'%F %T %Z')]) AC_CONFIG_FILES([ Makefile libnozzle/Makefile libnozzle/libnozzle.pc libnozzle/tests/Makefile libnozzle/bindings/Makefile libnozzle/bindings/rust/Makefile libnozzle/bindings/rust/Cargo.toml libnozzle/bindings/rust/tests/Makefile libnozzle/bindings/rust/tests/Cargo.toml libknet/Makefile libknet/libknet.pc libknet/tests/Makefile libknet/bindings/Makefile libknet/bindings/rust/Makefile libknet/bindings/rust/Cargo.toml libknet/bindings/rust/tests/Makefile libknet/bindings/rust/tests/Cargo.toml man/Makefile man/Doxyfile-knet man/Doxyfile-nozzle ]) if test "x$VERSION" = "xUNKNOWN"; then AC_MSG_ERROR([m4_text_wrap([ configure was unable to determine the source tree's current version. This generally happens when using git archive (or the github download button) generated tarball/zip file. In order to workaround this issue, either use git clone https://github.com/kronosnet/kronosnet.git or use an official release tarball, available at https://kronosnet.org/releases/. Alternatively you can add a compatible version in a .tarball-version file at the top of the source tree, wipe your autom4te.cache dir and generated configure, and rerun autogen.sh. ], [ ], [ ], [76])]) fi AC_OUTPUT