mirror of
https://gitlab.freedesktop.org/libbsd/libbsd.git
synced 2025-01-08 11:02:24 +01:00
08188f3c13
Both modules expose their functions in err.h, so we need to install it whenever any of them is being built. Reported-by: Alejandro Colomar <alx@kernel.org>
615 lines
16 KiB
Plaintext
615 lines
16 KiB
Plaintext
# Process this file with autoconf to produce a configure script.
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AC_PREREQ([2.67])
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AC_INIT([libbsd], m4_esyscmd([./get-version]), [libbsd@lists.freedesktop.org])
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AC_CONFIG_SRCDIR([src/strlcpy.c])
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AC_CONFIG_AUX_DIR([build-aux])
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AC_CONFIG_MACRO_DIR([m4])
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AM_INIT_AUTOMAKE(
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[1.11]
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[-Wall]
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[foreign]
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[nostdinc]
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[subdir-objects]
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[no-dist-gzip dist-xz]
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)
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AM_SILENT_RULES([yes])
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SOVERSION_MAJOR=0
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SOVERSION_MINOR=12
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SOVERSION_PATCH=0
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SOVERSION="$SOVERSION_MAJOR:$SOVERSION_MINOR:$SOVERSION_PATCH"
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AC_SUBST([SOVERSION])
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# Check and store if we got user supplied variables
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user_CFLAGS=${CFLAGS-unset}
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# Checks for operating system services and capabilities.
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AC_USE_SYSTEM_EXTENSIONS
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AC_SYS_LARGEFILE
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LIBBSD_SYS_TIME64
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AM_PROG_AR
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LT_INIT
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LIBBSD_LINKER_VERSION_SCRIPT
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## Select library ABI to expose.
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#
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# The systems have DROP comments for interfaces that could be dropped on
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# the next SOVERSION bump.
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is_windows=no
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abi_accmode=unknown
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abi_arc4random=unknown
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abi_arc4random_stir=unknown
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abi_asprintf=unknown
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abi_bsd_getopt=unknown
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abi_closefrom=unknown
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abi_err=unknown
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abi_errc=unknown
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abi_expand_number=unknown
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abi_explicit_bzero=unknown
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abi_fgetln=unknown
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abi_flopen=unknown
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abi_fmtcheck=unknown
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abi_fpurge=unknown
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abi_freezero=unknown
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abi_funopen=unknown
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abi_getbsize=unknown
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abi_getpeereid=unknown
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abi_humanize_number=unknown
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abi_id_from_name=unknown
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abi_inet_net_pton=unknown
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abi_md5=unknown
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abi_name_from_id=unknown
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abi_nlist=unknown
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abi_pidfile=unknown
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abi_proctitle=unknown
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abi_progname=unknown
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abi_readpassphrase=unknown
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abi_reallocarray=unknown
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abi_reallocf=unknown
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abi_recallocarray=unknown
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abi_stringlist=unknown
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abi_sort=unknown
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abi_strl=unknown
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abi_strmode=unknown
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abi_strnstr=unknown
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abi_strtonum=unknown
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abi_strtox=unknown
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abi_timeconv=unknown
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abi_vis=unknown
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abi_wcsl=unknown
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AS_CASE([$host_os],
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[*-gnu*], [
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abi_accmode=yes
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# DROP: On glibc >= 2.36.
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#abi_arc4random=no
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abi_arc4random=yes
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abi_arc4random_stir=yes
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abi_asprintf=no
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abi_bsd_getopt=yes
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# DROP: On glibc >= 2.34.
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#abi_closefrom=no
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abi_closefrom=yes
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abi_err=no
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abi_errc=yes
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abi_expand_number=yes
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# DROP: On glibc >= 2.25.
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#abi_explicit_bzero=no
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abi_explicit_bzero=yes
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abi_fgetln=yes
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abi_flopen=yes
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abi_fmtcheck=yes
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abi_fpurge=yes
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abi_freezero=yes
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abi_funopen=yes
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abi_getbsize=yes
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abi_getpeereid=yes
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abi_humanize_number=yes
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abi_id_from_name=yes
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# DROP: On glibc.
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#abi_inet_net_pton=no
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abi_inet_net_pton=yes
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# DROP: On libmd.
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#abi_md5=no
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abi_md5=yes
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abi_name_from_id=yes
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abi_nlist=yes
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abi_pidfile=yes
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abi_proctitle=yes
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abi_progname=yes
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abi_readpassphrase=yes
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# DROP: On glibc >= 2.26.
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#abi_reallocarray=no
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abi_reallocarray=yes
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abi_reallocf=yes
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abi_recallocarray=yes
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abi_stringlist=yes
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abi_sort=yes
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# DROP: On glibc >= 2.38.
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#abi_strl=no
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abi_strl=yes
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abi_strmode=yes
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abi_strnstr=yes
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abi_strtonum=yes
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abi_strtox=yes
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abi_timeconv=yes
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# DROP: On libmd.
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abi_transparent_libmd=yes
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abi_vis=yes
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abi_wcsl=yes
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],
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[*-musl*], [
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abi_accmode=yes
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abi_arc4random=yes
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abi_arc4random_stir=yes
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abi_asprintf=no
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# DROP: On musl >= 0.9.7, optreset got implemented.
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#abi_bsd_getopt=no
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abi_bsd_getopt=yes
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abi_closefrom=yes
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abi_err=no
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abi_errc=yes
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abi_expand_number=yes
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# DROP: On musl >= 1.1.20.
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#abi_explicit_bzero=no
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abi_explicit_bzero=yes
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# DROP: On musl >= 0.9.4.
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#abi_fgetln=no
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abi_fgetln=yes
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abi_flopen=yes
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abi_fmtcheck=yes
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abi_fpurge=yes
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abi_freezero=yes
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# On musl >= 1.1.19, fopencookie() got implemented, and because we were
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# checking for its presence to decide whether to build funopen(), it got
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# included in builds even when previously it had not been included, which
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# is partially an ABI issue, but given that disabling it now would be
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# worse, we'll ignore this as this is only a problem with downgrades. And
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# enable it explicitly
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#abi_funopen=no
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abi_funopen=yes
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abi_getbsize=yes
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abi_getpeereid=yes
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abi_humanize_number=yes
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abi_id_from_name=yes
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abi_inet_net_pton=yes
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# DROP: On libmd.
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#abi_md5=no
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abi_md5=yes
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abi_name_from_id=yes
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abi_nlist=yes
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abi_pidfile=yes
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abi_proctitle=yes
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abi_progname=yes
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abi_readpassphrase=yes
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# DROP: On musl >= 1.2.2.
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#abi_reallocarray=no
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abi_reallocarray=yes
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abi_reallocf=ues
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abi_recallocarray=yes
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abi_stringlist=yes
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abi_sort=yes
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# DROP: On musl >= 0.5.0, strlcpy() and strlcat() were already implemented.
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#abi_strl=no
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abi_strl=yes
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abi_strmode=yes
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abi_strnstr=yes
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abi_strtonum=yes
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abi_strtox=yes
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abi_timeconv=yes
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# DROP: On libmd.
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abi_transparent_libmd=yes
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abi_vis=yes
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abi_wcsl=yes
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],
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[darwin*], [
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abi_accmode=no
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abi_arc4random=no
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abi_arc4random_stir=no
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abi_asprintf=no
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abi_bsd_getopt=no
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abi_closefrom=yes
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abi_err=no
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abi_errc=no
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abi_expand_number=yes
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abi_explicit_bzero=yes
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abi_fgetln=no
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abi_flopen=yes
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abi_fmtcheck=no
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abi_fpurge=no
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abi_freezero=yes
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abi_funopen=no
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abi_getbsize=yes
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abi_getpeereid=no
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abi_humanize_number=yes
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abi_id_from_name=yes
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abi_inet_net_pton=no
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# On libmd.
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abi_md5=no
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abi_name_from_id=no
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abi_nlist=no
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abi_pidfile=yes
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abi_proctitle=yes
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abi_progname=no
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abi_readpassphrase=no
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abi_reallocarray=yes
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abi_reallocf=no
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abi_recallocarray=yes
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abi_stringlist=no
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abi_sort=no
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abi_strl=no
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abi_strmode=no
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abi_strnstr=no
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abi_strtonum=no
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abi_strtox=yes
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abi_timeconv=no
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# On libmd.
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abi_transparent_libmd=no
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abi_vis=no
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abi_wcsl=no
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],
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[solaris2*], [
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abi_accmode=yes
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abi_arc4random=no
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abi_arc4random_stir=no
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abi_asprintf=no
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abi_bsd_getopt=yes
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abi_closefrom=no
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abi_err=no
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abi_errc=yes
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abi_expand_number=yes
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abi_explicit_bzero=yes
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abi_fgetln=yes
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abi_flopen=yes
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abi_fmtcheck=no
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abi_fpurge=yes
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abi_freezero=yes
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abi_funopen=no
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abi_getbsize=yes
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abi_getpeereid=yes
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abi_humanize_number=yes
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abi_id_from_name=yes
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abi_inet_net_pton=yes
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# On libmd.
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abi_md5=no
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abi_name_from_id=yes
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abi_nlist=no
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abi_pidfile=yes
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abi_proctitle=yes
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abi_progname=no
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abi_readpassphrase=yes
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abi_reallocarray=yes
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abi_reallocf=no
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abi_recallocarray=yes
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abi_stringlist=yes
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abi_sort=yes
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abi_strl=no
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abi_strmode=yes
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abi_strnstr=no
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abi_strtonum=no
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abi_strtox=yes
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abi_timeconv=yes
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# On libmd.
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abi_transparent_libmd=no
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abi_vis=yes
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abi_wcsl=yes
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],
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[aix*], [
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abi_accmode=yes
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abi_arc4random=yes
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abi_arc4random_stir=yes
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abi_asprintf=yes
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abi_bsd_getopt=yes
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abi_closefrom=yes
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abi_err=yes
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abi_errc=yes
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abi_expand_number=yes
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abi_explicit_bzero=yes
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abi_fgetln=yes
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abi_flopen=yes
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abi_fmtcheck=yes
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abi_fpurge=no
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abi_freezero=yes
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abi_funopen=no
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abi_getbsize=yes
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abi_getpeereid=yes
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abi_humanize_number=yes
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abi_id_from_name=yes
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abi_inet_net_pton=no
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# On libmd.
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abi_md5=no
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abi_name_from_id=yes
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abi_nlist=no
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abi_pidfile=yes
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abi_proctitle=yes
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abi_progname=yes
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abi_readpassphrase=yes
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abi_reallocarray=yes
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abi_reallocf=yes
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abi_recallocarray=yes
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abi_stringlist=yes
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abi_sort=yes
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abi_strl=yes
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abi_strmode=yes
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abi_strnstr=yes
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abi_strtonum=yes
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abi_strtox=yes
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abi_timeconv=yes
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# On libmd.
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abi_transparent_libmd=no
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abi_vis=yes
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abi_wcsl=yes
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],
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[mingw*], [
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is_windows=yes
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],
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)
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# Handle artificial ABI selections that are combinations of others.
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AS_IF([test "$abi_name_from_id" = "yes" || test "$abi_id_from_name" = "yes"], [
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abi_pwcache=yes
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], [
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abi_pwcache=no
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])
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AS_IF([test "$abi_err" = "yes" || test "$abi_errc" = "yes"], [
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abi_err_h=yes
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], [
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abi_err_h=no
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])
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AM_CONDITIONAL([OS_WINDOWS], [test "x$is_windows" = "xyes"])
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# Checks for programs.
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AC_CHECK_TOOL([OBJDUMP], [objdump])
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AC_PROG_CC
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AC_PROG_SED
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AC_PROG_INSTALL
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AC_PROG_LN_S
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# Set default compiler variables
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AS_IF([test "$user_CFLAGS" = unset], [
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LIBBSD_CHECK_COMPILER_FLAG([-Wall])
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LIBBSD_CHECK_COMPILER_FLAG([-Wextra])
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LIBBSD_CHECK_COMPILER_FLAG([-Wbad-function-cast])
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LIBBSD_CHECK_COMPILER_FLAG([-Wc99-c11-compat])
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LIBBSD_CHECK_COMPILER_FLAG([-Wcast-align])
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LIBBSD_CHECK_COMPILER_FLAG([-Wdeclaration-after-statement])
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LIBBSD_CHECK_COMPILER_FLAG([-Wdocumentation])
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LIBBSD_CHECK_COMPILER_FLAG([-Wduplicated-branches])
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LIBBSD_CHECK_COMPILER_FLAG([-Wduplicated-cond])
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LIBBSD_CHECK_COMPILER_FLAG([-Wformat -Wformat-security])
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LIBBSD_CHECK_COMPILER_FLAG([-Wformat=2])
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LIBBSD_CHECK_COMPILER_FLAG([-Winit-self])
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LIBBSD_CHECK_COMPILER_FLAG([-Wlogical-not-parentheses])
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LIBBSD_CHECK_COMPILER_FLAG([-Wlogical-op])
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LIBBSD_CHECK_COMPILER_FLAG([-Wmissing-declarations])
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LIBBSD_CHECK_COMPILER_FLAG([-Wmissing-format-attribute])
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LIBBSD_CHECK_COMPILER_FLAG([-Wmissing-prototypes])
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LIBBSD_CHECK_COMPILER_FLAG([-Wnested-externs])
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LIBBSD_CHECK_COMPILER_FLAG([-Wno-missing-field-initializers])
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LIBBSD_CHECK_COMPILER_FLAG([-Wno-nonnull-compare])
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LIBBSD_CHECK_COMPILER_FLAG([-Wno-tautological-constant-out-of-range-compare])
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LIBBSD_CHECK_COMPILER_FLAG([-Wno-unused-parameter])
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LIBBSD_CHECK_COMPILER_FLAG([-Wnull-dereference])
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LIBBSD_CHECK_COMPILER_FLAG([-Wold-style-definition])
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LIBBSD_CHECK_COMPILER_FLAG([-Wpointer-arith])
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LIBBSD_CHECK_COMPILER_FLAG([-Wregister])
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LIBBSD_CHECK_COMPILER_FLAG([-Wrestrict])
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LIBBSD_CHECK_COMPILER_FLAG([-Wshadow])
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LIBBSD_CHECK_COMPILER_FLAG([-Wshift-negative-value])
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LIBBSD_CHECK_COMPILER_FLAG([-Wsizeof-array-argument])
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LIBBSD_CHECK_COMPILER_FLAG([-Wstrict-prototypes])
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LIBBSD_CHECK_COMPILER_FLAG([-Wswitch-bool])
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LIBBSD_CHECK_COMPILER_FLAG([-Wvla])
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LIBBSD_CHECK_COMPILER_FLAG([-Wwrite-strings])
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CFLAGS="$CFLAGS $LIBBSD_COMPILER_FLAGS"
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AC_ARG_ENABLE([sanitize],
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[AS_HELP_STRING([--enable-sanitize], [enable compiler sanitizer support])],
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[
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LIBBSD_COMPILER_FLAGS=''
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LIBBSD_CHECK_COMPILER_FLAG([-fsanitize=address])
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LIBBSD_CHECK_COMPILER_FLAG([-fsanitize=leak])
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LIBBSD_CHECK_COMPILER_FLAG([-fsanitize=undefined])
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CFLAGS="$CFLAGS $LIBBSD_COMPILER_FLAGS"
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LDFLAGS="$LDFLAGS $LIBBSD_COMPILER_FLAGS"
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])
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])
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# Checks for libraries.
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AC_CHECK_LIB([testu01], [unif01_CreateExternGenBits],
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[TESTU01_LIBS="-ltestu01"])
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AC_SUBST([TESTU01_LIBS])
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AM_CONDITIONAL([HAVE_LIBTESTU01],
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[test "x$ac_cv_lib_testu01_unif01_CreateExternGenBits" = "xyes"])
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saved_LIBS="$LIBS"
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AS_IF([test "$abi_md5" = "yes"], [
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AC_SEARCH_LIBS([MD5Update], [md], [
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AS_IF([test "x$ac_cv_search_MD5Update" != "xnone required"], [
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MD5_LIBS="$MD5_LIBS $ac_cv_search_MD5Update"
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abi_transparent_libmd=yes
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])
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], [
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AC_MSG_ERROR([cannot find required MD5 functions in libc or libmd])
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])
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])
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AS_IF([test "$abi_arc4random" = "yes"], [
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AC_CHECK_FUNCS([getentropy])
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AS_IF([test "$ac_cv_func_getentropy" != "yes"], [
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AC_SEARCH_LIBS([SHA512Update], [md], [
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AS_IF([test "x$ac_cv_search_SHA512Update" != "xnone required"], [
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LIBBSD_LIBS="$SHA512_LIBS $ac_cv_search_SHA512Update"
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])
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], [
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AC_MSG_ERROR([cannot find required SHA-2 functions in libc or libmd])
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])
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])
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])
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LIBS="$saved_LIBS"
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AS_CASE([$host_os],
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[*-gnu*], [
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# In old glibc versions (< 2.17) clock_gettime() is in librt.
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saved_LIBS="$LIBS"
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AC_SEARCH_LIBS([clock_gettime], [rt], [
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AS_IF([test "x$ac_cv_search_clock_gettime" != "xnone required"], [
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LIBBSD_LIBS="$LIBBSD_LIBS $ac_cv_search_clock_gettime"
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])
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])
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LIBS="$saved_LIBS"
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],
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[aix*], [
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saved_LIBS="$LIBS"
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AC_SEARCH_LIBS([perfstat_cpu_total], [perfstat], [
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AS_IF([test "x$ac_cv_search_perfstat_cpu_total" != "xnone required"], [
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LIBBSD_LIBS="$LIBBSD_LIBS $ac_cv_search_perfstat_cpu_total"
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])
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])
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LIBS="$saved_LIBS"
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],
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)
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# Checks for header files.
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|
AC_CHECK_HEADERS([\
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sys/ndir.h \
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sys/dir.h \
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ndir.h \
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dirent.h \
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pwd.h \
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grp.h \
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stdio_ext.h \
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procinfo.h \
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])
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|
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# Checks for typedefs, structures, and compiler characteristics.
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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
|