# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.67])
AC_INIT([libbsd], m4_esyscmd([./get-version]), [libbsd@lists.freedesktop.org])
AC_CONFIG_SRCDIR([src/strlcpy.c])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE(
[1.11]
[-Wall]
[foreign]
[nostdinc]
[subdir-objects]
[no-dist-gzip dist-xz]
)
AM_SILENT_RULES([yes])
SOVERSION_MAJOR=0
SOVERSION_MINOR=12
SOVERSION_PATCH=1
SOVERSION="$SOVERSION_MAJOR:$SOVERSION_MINOR:$SOVERSION_PATCH"
AC_SUBST([SOVERSION])
# Check and store if we got user supplied variables
user_CFLAGS=${CFLAGS-unset}
# Checks for operating system services and capabilities.
AC_USE_SYSTEM_EXTENSIONS
AC_SYS_LARGEFILE
LIBBSD_SYS_TIME64
AM_PROG_AR
LT_INIT
LIBBSD_LINKER_VERSION_SCRIPT
## Select library ABI to expose.
#
# The systems have DROP comments for interfaces that could be dropped on
# the next SOVERSION bump.
is_windows=no
abi_accmode=unknown
abi_arc4random=unknown
abi_arc4random_stir=unknown
abi_asprintf=unknown
abi_bsd_getopt=unknown
abi_closefrom=unknown
abi_err=unknown
abi_errc=unknown
abi_expand_number=unknown
abi_explicit_bzero=unknown
abi_fgetln=unknown
abi_flopen=unknown
abi_fmtcheck=unknown
abi_fpurge=unknown
abi_freezero=unknown
abi_funopen=unknown
abi_getbsize=unknown
abi_getpeereid=unknown
abi_humanize_number=unknown
abi_id_from_name=unknown
abi_inet_net_pton=unknown
abi_md5=unknown
abi_name_from_id=unknown
abi_nlist=unknown
abi_pidfile=unknown
abi_proctitle=unknown
abi_progname=unknown
abi_readpassphrase=unknown
abi_reallocarray=unknown
abi_reallocf=unknown
abi_recallocarray=unknown
abi_stringlist=unknown
abi_sort=unknown
abi_strl=unknown
abi_strmode=unknown
abi_strnstr=unknown
abi_strtonum=unknown
abi_strtox=unknown
abi_timeconv=unknown
abi_vis=unknown
abi_wcsl=unknown
AS_CASE([$host_os],
[*-gnu*], [
abi_accmode=yes
# DROP: On glibc >= 2.36.
#abi_arc4random=no
abi_arc4random=yes
abi_arc4random_stir=yes
abi_asprintf=no
abi_bsd_getopt=yes
# DROP: On glibc >= 2.34.
#abi_closefrom=no
abi_closefrom=yes
abi_err=no
abi_errc=yes
abi_expand_number=yes
# DROP: On glibc >= 2.25.
#abi_explicit_bzero=no
abi_explicit_bzero=yes
abi_fgetln=yes
abi_flopen=yes
abi_fmtcheck=yes
abi_fpurge=yes
abi_freezero=yes
abi_funopen=yes
abi_getbsize=yes
abi_getpeereid=yes
abi_humanize_number=yes
abi_id_from_name=yes
# DROP: On glibc.
#abi_inet_net_pton=no
abi_inet_net_pton=yes
# DROP: On libmd.
#abi_md5=no
abi_md5=yes
abi_name_from_id=yes
abi_nlist=yes
abi_pidfile=yes
abi_proctitle=yes
abi_progname=yes
abi_readpassphrase=yes
# DROP: On glibc >= 2.26.
#abi_reallocarray=no
abi_reallocarray=yes
abi_reallocf=yes
abi_recallocarray=yes
abi_stringlist=yes
abi_sort=yes
# DROP: On glibc >= 2.38.
#abi_strl=no
abi_strl=yes
abi_strmode=yes
abi_strnstr=yes
abi_strtonum=yes
abi_strtox=yes
abi_timeconv=yes
# DROP: On libmd.
abi_transparent_libmd=yes
abi_vis=yes
abi_wcsl=yes
],
[*-musl*], [
abi_accmode=yes
abi_arc4random=yes
abi_arc4random_stir=yes
abi_asprintf=no
# DROP: On musl >= 0.9.7, optreset got implemented.
#abi_bsd_getopt=no
abi_bsd_getopt=yes
abi_closefrom=yes
abi_err=no
abi_errc=yes
abi_expand_number=yes
# DROP: On musl >= 1.1.20.
#abi_explicit_bzero=no
abi_explicit_bzero=yes
# DROP: On musl >= 0.9.4.
#abi_fgetln=no
abi_fgetln=yes
abi_flopen=yes
abi_fmtcheck=yes
abi_fpurge=yes
abi_freezero=yes
# On musl >= 1.1.19, fopencookie() got implemented, and because we were
# checking for its presence to decide whether to build funopen(), it got
# included in builds even when previously it had not been included, which
# is partially an ABI issue, but given that disabling it now would be
# worse, we'll ignore this as this is only a problem with downgrades. And
# enable it explicitly
#abi_funopen=no
abi_funopen=yes
abi_getbsize=yes
abi_getpeereid=yes
abi_humanize_number=yes
abi_id_from_name=yes
abi_inet_net_pton=yes
# DROP: On libmd.
#abi_md5=no
abi_md5=yes
abi_name_from_id=yes
abi_nlist=yes
abi_pidfile=yes
abi_proctitle=yes
abi_progname=yes
abi_readpassphrase=yes
# DROP: On musl >= 1.2.2.
#abi_reallocarray=no
abi_reallocarray=yes
abi_reallocf=ues
abi_recallocarray=yes
abi_stringlist=yes
abi_sort=yes
# DROP: On musl >= 0.5.0, strlcpy() and strlcat() were already implemented.
#abi_strl=no
abi_strl=yes
abi_strmode=yes
abi_strnstr=yes
abi_strtonum=yes
abi_strtox=yes
abi_timeconv=yes
# DROP: On libmd.
abi_transparent_libmd=yes
abi_vis=yes
abi_wcsl=yes
],
[darwin*], [
abi_accmode=no
abi_arc4random=no
abi_arc4random_stir=no
abi_asprintf=no
abi_bsd_getopt=no
abi_closefrom=yes
abi_err=no
abi_errc=no
abi_expand_number=yes
abi_explicit_bzero=yes
abi_fgetln=no
abi_flopen=yes
abi_fmtcheck=no
abi_fpurge=no
abi_freezero=yes
abi_funopen=no
abi_getbsize=yes
abi_getpeereid=no
abi_humanize_number=yes
abi_id_from_name=yes
abi_inet_net_pton=no
# On libmd.
abi_md5=no
abi_name_from_id=no
abi_nlist=no
abi_pidfile=yes
abi_proctitle=yes
abi_progname=no
abi_readpassphrase=no
abi_reallocarray=yes
abi_reallocf=no
abi_recallocarray=yes
abi_stringlist=no
abi_sort=no
abi_strl=no
abi_strmode=no
abi_strnstr=no
abi_strtonum=no
abi_strtox=yes
abi_timeconv=no
# On libmd.
abi_transparent_libmd=no
abi_vis=no
abi_wcsl=no
],
[solaris2*], [
abi_accmode=yes
abi_arc4random=no
abi_arc4random_stir=no
abi_asprintf=no
abi_bsd_getopt=yes
abi_closefrom=no
abi_err=no
abi_errc=yes
abi_expand_number=yes
abi_explicit_bzero=yes
abi_fgetln=yes
abi_flopen=yes
abi_fmtcheck=no
abi_fpurge=yes
abi_freezero=yes
abi_funopen=no
abi_getbsize=yes
abi_getpeereid=yes
abi_humanize_number=yes
abi_id_from_name=yes
abi_inet_net_pton=yes
# On libmd.
abi_md5=no
abi_name_from_id=yes
abi_nlist=no
abi_pidfile=yes
abi_proctitle=yes
abi_progname=no
abi_readpassphrase=yes
abi_reallocarray=yes
abi_reallocf=no
abi_recallocarray=yes
abi_stringlist=yes
abi_sort=yes
abi_strl=no
abi_strmode=yes
abi_strnstr=no
abi_strtonum=no
abi_strtox=yes
abi_timeconv=yes
# On libmd.
abi_transparent_libmd=no
abi_vis=yes
abi_wcsl=yes
],
[aix*], [
abi_accmode=yes
abi_arc4random=yes
abi_arc4random_stir=yes
abi_asprintf=yes
abi_bsd_getopt=yes
abi_closefrom=yes
abi_err=yes
abi_errc=yes
abi_expand_number=yes
abi_explicit_bzero=yes
abi_fgetln=yes
abi_flopen=yes
abi_fmtcheck=yes
abi_fpurge=no
abi_freezero=yes
abi_funopen=no
abi_getbsize=yes
abi_getpeereid=yes
abi_humanize_number=yes
abi_id_from_name=yes
abi_inet_net_pton=no
# On libmd.
abi_md5=no
abi_name_from_id=yes
abi_nlist=no
abi_pidfile=yes
abi_proctitle=yes
abi_progname=yes
abi_readpassphrase=yes
abi_reallocarray=yes
abi_reallocf=yes
abi_recallocarray=yes
abi_stringlist=yes
abi_sort=yes
abi_strl=yes
abi_strmode=yes
abi_strnstr=yes
abi_strtonum=yes
abi_strtox=yes
abi_timeconv=yes
# On libmd.
abi_transparent_libmd=no
abi_vis=yes
abi_wcsl=yes
],
[mingw*], [
is_windows=yes
],
)
# Handle artificial ABI selections that are combinations of others.
AS_IF([test "$abi_name_from_id" = "yes" || test "$abi_id_from_name" = "yes"], [
abi_pwcache=yes
], [
abi_pwcache=no
])
AS_IF([test "$abi_err" = "yes" || test "$abi_errc" = "yes"], [
abi_err_h=yes
], [
abi_err_h=no
])
AM_CONDITIONAL([OS_WINDOWS], [test "x$is_windows" = "xyes"])
# Checks for programs.
AC_CHECK_TOOL([OBJDUMP], [objdump])
AC_PROG_CC
AC_PROG_SED
AC_PROG_INSTALL
AC_PROG_LN_S
# Set default compiler variables
AS_IF([test "$user_CFLAGS" = unset], [
LIBBSD_CHECK_COMPILER_FLAG([-Wall])
LIBBSD_CHECK_COMPILER_FLAG([-Wextra])
LIBBSD_CHECK_COMPILER_FLAG([-Wbad-function-cast])
LIBBSD_CHECK_COMPILER_FLAG([-Wc99-c11-compat])
LIBBSD_CHECK_COMPILER_FLAG([-Wcast-align])
LIBBSD_CHECK_COMPILER_FLAG([-Wdeclaration-after-statement])
LIBBSD_CHECK_COMPILER_FLAG([-Wdocumentation])
LIBBSD_CHECK_COMPILER_FLAG([-Wduplicated-branches])
LIBBSD_CHECK_COMPILER_FLAG([-Wduplicated-cond])
LIBBSD_CHECK_COMPILER_FLAG([-Wformat -Wformat-security])
LIBBSD_CHECK_COMPILER_FLAG([-Wformat=2])
LIBBSD_CHECK_COMPILER_FLAG([-Winit-self])
LIBBSD_CHECK_COMPILER_FLAG([-Wlogical-not-parentheses])
LIBBSD_CHECK_COMPILER_FLAG([-Wlogical-op])
LIBBSD_CHECK_COMPILER_FLAG([-Wmissing-declarations])
LIBBSD_CHECK_COMPILER_FLAG([-Wmissing-format-attribute])
LIBBSD_CHECK_COMPILER_FLAG([-Wmissing-prototypes])
LIBBSD_CHECK_COMPILER_FLAG([-Wnested-externs])
LIBBSD_CHECK_COMPILER_FLAG([-Wno-missing-field-initializers])
LIBBSD_CHECK_COMPILER_FLAG([-Wno-nonnull-compare])
LIBBSD_CHECK_COMPILER_FLAG([-Wno-tautological-constant-out-of-range-compare])
LIBBSD_CHECK_COMPILER_FLAG([-Wno-unused-parameter])
LIBBSD_CHECK_COMPILER_FLAG([-Wnull-dereference])
LIBBSD_CHECK_COMPILER_FLAG([-Wold-style-definition])
LIBBSD_CHECK_COMPILER_FLAG([-Wpointer-arith])
LIBBSD_CHECK_COMPILER_FLAG([-Wregister])
LIBBSD_CHECK_COMPILER_FLAG([-Wrestrict])
LIBBSD_CHECK_COMPILER_FLAG([-Wshadow])
LIBBSD_CHECK_COMPILER_FLAG([-Wshift-negative-value])
LIBBSD_CHECK_COMPILER_FLAG([-Wsizeof-array-argument])
LIBBSD_CHECK_COMPILER_FLAG([-Wstrict-prototypes])
LIBBSD_CHECK_COMPILER_FLAG([-Wswitch-bool])
LIBBSD_CHECK_COMPILER_FLAG([-Wvla])
LIBBSD_CHECK_COMPILER_FLAG([-Wwrite-strings])
CFLAGS="$CFLAGS $LIBBSD_COMPILER_FLAGS"
AC_ARG_ENABLE([sanitize],
[AS_HELP_STRING([--enable-sanitize], [enable compiler sanitizer support])],
[
LIBBSD_COMPILER_FLAGS=''
LIBBSD_CHECK_COMPILER_FLAG([-fsanitize=address])
LIBBSD_CHECK_COMPILER_FLAG([-fsanitize=leak])
LIBBSD_CHECK_COMPILER_FLAG([-fsanitize=undefined])
CFLAGS="$CFLAGS $LIBBSD_COMPILER_FLAGS"
LDFLAGS="$LDFLAGS $LIBBSD_COMPILER_FLAGS"
])
])
# Checks for libraries.
AC_CHECK_LIB([testu01], [unif01_CreateExternGenBits],
[TESTU01_LIBS="-ltestu01"])
AC_SUBST([TESTU01_LIBS])
AM_CONDITIONAL([HAVE_LIBTESTU01],
[test "x$ac_cv_lib_testu01_unif01_CreateExternGenBits" = "xyes"])
saved_LIBS="$LIBS"
AS_IF([test "$abi_md5" = "yes"], [
AC_SEARCH_LIBS([MD5Update], [md], [
AS_IF([test "x$ac_cv_search_MD5Update" != "xnone required"], [
MD5_LIBS="$MD5_LIBS $ac_cv_search_MD5Update"
abi_transparent_libmd=yes
])
], [
AC_MSG_ERROR([cannot find required MD5 functions in libc or libmd])
])
])
AS_IF([test "$abi_arc4random" = "yes"], [
AC_CHECK_FUNCS([getentropy])
AS_IF([test "$ac_cv_func_getentropy" != "yes"], [
AC_SEARCH_LIBS([SHA512Update], [md], [
AS_IF([test "x$ac_cv_search_SHA512Update" != "xnone required"], [
LIBBSD_LIBS="$SHA512_LIBS $ac_cv_search_SHA512Update"
])
], [
AC_MSG_ERROR([cannot find required SHA-2 functions in libc or libmd])
])
])
])
LIBS="$saved_LIBS"
AS_CASE([$host_os],
[*-gnu*], [
# In old glibc versions (< 2.17) clock_gettime() is in librt.
saved_LIBS="$LIBS"
AC_SEARCH_LIBS([clock_gettime], [rt], [
AS_IF([test "x$ac_cv_search_clock_gettime" != "xnone required"], [
LIBBSD_LIBS="$LIBBSD_LIBS $ac_cv_search_clock_gettime"
])
])
LIBS="$saved_LIBS"
],
[aix*], [
saved_LIBS="$LIBS"
AC_SEARCH_LIBS([perfstat_cpu_total], [perfstat], [
AS_IF([test "x$ac_cv_search_perfstat_cpu_total" != "xnone required"], [
LIBBSD_LIBS="$LIBBSD_LIBS $ac_cv_search_perfstat_cpu_total"
])
])
LIBS="$saved_LIBS"
],
)
# Checks for header files.
AC_CHECK_HEADERS([\
sys/ndir.h \
sys/dir.h \
ndir.h \
dirent.h \
pwd.h \
grp.h \
stdio_ext.h \
procinfo.h \
])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_C_TYPEOF
AC_TYPE_INT64_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_UID_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_CHECK_DECL([F_CLOSEM], [
AC_DEFINE([HAVE_FCNTL_CLOSEM], [1],
[Define to 1 if you have fcntl(F_CLOSEM)])
], [], [[
#include <limits.h>
#include <fcntl.h>
]])
AC_CHECK_DECLS([environ], [], [], [[
#include <unistd.h>
]])
LIBBSD_HAS_GNU_INIT_ARRAY
# Checks for library functions.
LIBBSD_CHECK_PROGNAME
LIBBSD_CHECK_REGISTER_ATFORK
AC_CHECK_FUNCS([\
vasprintf \
asprintf \
clearenv \
dirfd \
flock \
fopencookie \
__fpurge \
funopen \
getauxval \
getentropy \
getexecname \
getline \
open_memstream \
pstat_getproc \
sysconf \
uid_from_user \
gid_from_group \
user_from_uid \
group_from_gid \
])
AM_CONDITIONAL([HAVE_GETENTROPY], [test "x$ac_cv_func_getentropy" = "xyes"])
# ABI selection
LIBBSD_SELECT_ABI([accmode], [setmode()/getmode()])
LIBBSD_SELECT_ABI([arc4random], [arc4random() API])
LIBBSD_SELECT_ABI([arc4random_stir], [arc4random_stir()/arc4random_addrandom()])
LIBBSD_SELECT_ABI([asprintf], [vasprintf()/asprintf()])
LIBBSD_SELECT_ABI([bsd_getopt], [BSD getopt()])
LIBBSD_SELECT_ABI([closefrom], [closefrom()])
LIBBSD_SELECT_ABI([err_h], [err.h header])
LIBBSD_SELECT_ABI([err], [err API])
LIBBSD_SELECT_ABI([errc], [errc API])
LIBBSD_SELECT_ABI([expand_number], [expand_number()])
LIBBSD_SELECT_ABI([explicit_bzero], [explicit_bzero()])
LIBBSD_SELECT_ABI([fgetln], [fgetln/fgetwln()])
LIBBSD_SELECT_ABI([flopen], [flopen()/flopenat()])
LIBBSD_SELECT_ABI([fmtcheck], [fmtcheck()])
LIBBSD_SELECT_ABI([fpurge], [fpurge()])
LIBBSD_SELECT_ABI([freezero], [freezero()])
LIBBSD_SELECT_ABI([funopen], [funopen()])
LIBBSD_SELECT_ABI([getbsize], [getbsize()])
LIBBSD_SELECT_ABI([getpeereid], [getpeereid()])
LIBBSD_SELECT_ABI([humanize_number], [humanize_number()/dehumanize_number()])
LIBBSD_SELECT_ABI([id_from_name], [uid_from_user()/gid_from_user()])
LIBBSD_SELECT_ABI([inet_net_pton], [inet_net_pton()])
LIBBSD_SELECT_ABI([md5], [MD5 digest functions])
LIBBSD_SELECT_ABI([name_from_id], [user_from_uid()/group_from_gid()])
LIBBSD_SELECT_ABI([nlist], [nlist()])
LIBBSD_SELECT_ABI([pidfile], [pidfile API])
LIBBSD_SELECT_ABI([proctitle], [setproctitle() API])
LIBBSD_SELECT_ABI([progname], [setprogname()/getprogname()])
LIBBSD_SELECT_ABI([pwcache], [password cache API])
LIBBSD_SELECT_ABI([readpassphrase], [readpassphrase()])
LIBBSD_SELECT_ABI([reallocarray], [reallocarray()])
LIBBSD_SELECT_ABI([reallocf], [reallocf()])
LIBBSD_SELECT_ABI([recallocarray], [recallocarray()])
LIBBSD_SELECT_ABI([stringlist], [stringlist sl_*() API])
LIBBSD_SELECT_ABI([sort], [BSD sort functions])
LIBBSD_SELECT_ABI([strl], [strlcpy()/strlcat()])
LIBBSD_SELECT_ABI([strmode], [strmode()])
LIBBSD_SELECT_ABI([strnstr], [strnstr()])
LIBBSD_SELECT_ABI([strtonum], [strtonum()])
LIBBSD_SELECT_ABI([strtox], [strtoi()/strtou()])
LIBBSD_SELECT_ABI([timeconv], [timeconf.h API])
LIBBSD_SELECT_ABI([transparent_libmd], [transparent libmd support])
LIBBSD_SELECT_ABI([vis], [vis API])
LIBBSD_SELECT_ABI([wcsl], [wcslcpy()/wcslcat()])
AS_IF([test "x$abi_funopen" = "xno" && \
test "x$ac_cv_func_funopen" != "xyes" && \
test "x$ac_cv_func_fopencookie" = "xyes"], [
AC_MSG_WARN([[can implement funopen() now based on newly added fopencooke(), report upstream]])
])
AC_SUBST([MD5_LIBS])
AC_SUBST([LIBBSD_LIBS])
AC_CONFIG_FILES([
Makefile
include/Makefile
man/Makefile
src/Makefile
src/libbsd.pc
src/libbsd-ctor.pc
src/libbsd-overlay.pc
test/Makefile
])
AC_CONFIG_HEADERS([config.h])
AC_OUTPUT
