X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=configure.ac;h=10d4ff0041b1b5507733dd131739fb41dfb1898f;hp=daa967a738a057a61dc69b5e93c9c047c4b71524;hb=6b5533b01a70007d3637a48dc0948225fe9b5490;hpb=9260f372503da28b709498280ebca39f4331d1e1 diff --git a/configure.ac b/configure.ac index daa967a..10d4ff0 100644 --- a/configure.ac +++ b/configure.ac @@ -1,9 +1,31 @@ -AC_PREREQ(2.59) -AC_INIT([userspace-rcu],[0.12.0],[mathieu dot desnoyers at efficios dot com], [], [http://liburcu.org/]) - +dnl SPDX-License-Identifier: LGPL-2.1-only +dnl +dnl Copyright (C) 2021 EfficiOS, Inc. +dnl +dnl Process this file with autoconf to produce a configure script. + +# Project version information +m4_define([urcu_version_major], [0]) +m4_define([urcu_version_minor], [12]) +m4_define([urcu_version_patch], [0]) +m4_define([urcu_version_dev_stage], []) +m4_define([urcu_version], urcu_version_major[.]urcu_version_minor[.]urcu_version_patch[]urcu_version_dev_stage) + +# Library version information of "liburcu" # Following the numbering scheme proposed by libtool for the library version # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html -AC_SUBST([URCU_LIBRARY_VERSION], [7:0:1]) +m4_define([urcu_lib_version_current], [7]) +m4_define([urcu_lib_version_revision], [0]) +m4_define([urcu_lib_version_age], [1]) +m4_define([urcu_lib_version], urcu_lib_version_current[:]urcu_lib_version_revision[:]urcu_lib_version_age) + + +## ## +## Autoconf base setup ## +## ## + +AC_PREREQ([2.69]) +AC_INIT([userspace-rcu],[urcu_version],[mathieu dot desnoyers at efficios dot com],[],[http://liburcu.org/]) AC_CONFIG_HEADERS([include/config.h include/urcu/config.h]) AC_CONFIG_AUX_DIR([config]) @@ -12,13 +34,103 @@ AC_CONFIG_MACRO_DIR([m4]) AC_CANONICAL_TARGET AC_CANONICAL_HOST -AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip nostdinc]) + +## ## +## Automake base setup ## +## ## + +AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip nostdinc -Wall -Wno-portability -Werror]) AM_MAINTAINER_MODE([enable]) -# Enable silent rules if available (Introduced in AM 1.11) -m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) +# Enable silent rules by default +AM_SILENT_RULES([yes]) + + +## ## +## OS and Arch specific defaults ## +## ## + +AS_CASE([$host], + [*-cygwin*], [LT_NO_UNDEFINED="-no-undefined"] +) + + +## ## +## C compiler checks ## +## ## + +# Choose the C compiler +AC_PROG_CC +# AC_PROG_CC_STDC was merged in AC_PROG_CC in autoconf 2.70 +m4_version_prereq([2.70], [], [AC_PROG_CC_STDC]) + +# Make sure the C compiler supports C99 +AS_IF([test "$ac_cv_prog_cc_c99" = "no"], [AC_MSG_ERROR([The compiler does not support C99])]) + +# Enable available system extensions and LFS support +AC_USE_SYSTEM_EXTENSIONS +AC_SYS_LARGEFILE + +# Make sure the C compiler supports __attribute__ +AX_C___ATTRIBUTE__ +AS_IF([test "x$ax_cv___attribute__" != "xyes"], + [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])]) + +# Make sure we have pthread support +AX_PTHREAD([], [AC_MSG_ERROR([Could not configure pthread support])]) + +# Make sure the C compiler supports weak symbols +AX_SYS_WEAK_ALIAS +AS_IF([test "x$ax_cv_sys_weak_alias" = "xno"], + [AC_MSG_ERROR([Your platform doesn't support weak symbols.])]) + +# Checks for typedefs, structures, and compiler characteristics. +AC_C_INLINE +AC_C_TYPEOF +AC_TYPE_INT32_T +AC_TYPE_PID_T +AC_TYPE_SIZE_T +AC_TYPE_SSIZE_T +AC_TYPE_UINT16_T +AC_TYPE_UINT32_T +AC_TYPE_UINT64_T +AC_TYPE_UINT8_T + + +## ## +## Header checks ## +## ## + +AC_HEADER_STDBOOL +AC_CHECK_HEADERS([ \ + limits.h \ + stddef.h \ + sys/param.h \ + sys/time.h \ +]) + + +## ## +## Programs checks ## +## ## + +AC_PROG_AWK +AC_PROG_GREP +AC_PROG_MAKE_SET +AC_CHECK_PROGS(NPROC, [nproc gnproc]) +AC_CHECK_PROG(GETCONF, [getconf]) +AS_IF([test "x$NPROC" != "x"], + [NPROC_CMD=$NPROC], + [AS_IF([test "x$GETCONF" != "x"], + [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"], + [NPROC_CMD="echo 1"] + )] +) +AC_SUBST([NPROC_CMD], [$NPROC_CMD]) + +# Initialize and configure libtool +LT_INIT -AC_REQUIRE_AUX_FILE([tap-driver.sh]) AH_TEMPLATE([CONFIG_RCU_SMP], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.]) AH_TEMPLATE([CONFIG_RCU_TLS], [TLS provided by the compiler.]) @@ -41,46 +153,8 @@ AC_ARG_ENABLE([compiler-tls], [def_compiler_tls=$enableval], [def_compiler_tls="yes"]) -# Checks for C compiler -AC_USE_SYSTEM_EXTENSIONS -AC_PROG_CC -AC_PROG_CC_STDC - AS_IF([test "x$def_compiler_tls" = "xyes"], AC_DEFINE([CONFIG_RCU_TLS], [1]), [:]) -# Checks for programs. -AC_PROG_AWK -AC_PROG_MAKE_SET -AC_CHECK_PROGS(NPROC, [nproc gnproc]) -AC_CHECK_PROGS(GETCONF, [getconf]) -AS_IF([test "x$NPROC" != "x"], - [NPROC_CMD=$NPROC], - [AS_IF([test "x$GETCONF" != "x"], - [NPROC_CMD="$GETCONF _NPROCESSORS_ONLN"], - [NPROC_CMD="echo 1"] - )] -) -AC_SUBST([NPROC_CMD], [$NPROC_CMD]) - -LT_INIT - -# Checks for typedefs, structures, and compiler characteristics. -AC_C_INLINE -AC_TYPE_PID_T -AC_TYPE_SIZE_T -AC_TYPE_SSIZE_T -AC_TYPE_UINT16_T -AC_TYPE_INT32_T -AC_TYPE_UINT32_T -AC_TYPE_UINT64_T -AC_TYPE_UINT8_T - -AX_C___ATTRIBUTE__ -AS_IF([test "x$ax_cv___attribute__" = "xyes"], - [:], - [AC_MSG_ERROR([The compiler does not support __attribute__ extensions])]) - -AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])]) AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS" @@ -105,24 +179,6 @@ AC_CHECK_FUNCS([ \ # AC_FUNC_MALLOC causes problems when cross-compiling. #AC_FUNC_MALLOC -# Check for headers -AC_HEADER_STDBOOL -AC_CHECK_HEADERS([ \ - limits.h \ - stddef.h \ - sys/param.h \ - sys/time.h \ -]) - -AS_CASE([$host],[*-cygwin*], - [AM_CONDITIONAL(USE_CYGWIN, true)], - [AM_CONDITIONAL(USE_CYGWIN, false)] -) - -AS_IF([test "$host_cpu" = "armv7l"],[ - AM_CFLAGS="$AM_CFLAGS -mcpu=cortex-a9 -mtune=cortex-a9 -O1" -]) - # Search for clock_gettime AC_SEARCH_LIBS([clock_gettime], [rt], [ AC_DEFINE([CONFIG_RCU_HAVE_CLOCK_GETTIME], [1]) @@ -255,6 +311,15 @@ AC_CHECK_FUNCS([sched_setaffinity],[ ]) ]) +## ## +## Substitute variables for use in Makefile.am ## +## ## + +# Library versions for libtool +AC_SUBST([URCU_LIBRARY_VERSION], [urcu_lib_version]) + +AC_SUBST(LT_NO_UNDEFINED) + AM_CPPFLAGS="-include config.h" AC_SUBST(AM_CPPFLAGS)