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file/configure.ac
Christos Zoulas 8dc5513908 Check if we support _TIME_BITS. (Werner Fink)
2023-07-31 15:56:12 +00:00

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dnl Process this file with autoconf to produce a configure script.
AC_INIT([file],[5.45],[christos@astron.com])
AM_INIT_AUTOMAKE([subdir-objects foreign])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AC_MSG_CHECKING(for builtin ELF support)
AC_ARG_ENABLE(elf,
[ --disable-elf disable builtin ELF support],
[if test "${enableval}" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE([BUILTIN_ELF], 1, [Define if built-in ELF support is used])
else
AC_MSG_RESULT(no)
fi], [
# enable by default
AC_MSG_RESULT(yes)
AC_DEFINE([BUILTIN_ELF], 1, [Define in built-in ELF support is used])
])
AC_MSG_CHECKING(for ELF core file support)
AC_ARG_ENABLE(elf-core,
[ --disable-elf-core disable ELF core file support],
[if test "${enableval}" = yes; then
AC_MSG_RESULT(yes)
AC_DEFINE([ELFCORE], 1, [Define for ELF core file support])
else
AC_MSG_RESULT(no)
fi], [
# enable by default
AC_MSG_RESULT(yes)
AC_DEFINE([ELFCORE], 1, [Define for ELF core file support])
])
AC_MSG_CHECKING(for zlib support)
AC_ARG_ENABLE([zlib],
[AS_HELP_STRING([--disable-zlib], [disable zlib compression support @<:@default=auto@:>@])])
AC_MSG_RESULT($enable_zlib)
AC_MSG_CHECKING(for bzlib support)
AC_ARG_ENABLE([bzlib],
[AS_HELP_STRING([--disable-bzlib], [disable bz2lib compression support @<:@default=auto@:>@])])
AC_MSG_RESULT($enable_bzlib)
AC_MSG_CHECKING(for xzlib support)
AC_ARG_ENABLE([xzlib],
[AS_HELP_STRING([--disable-xzlib], [disable liblzma/xz compression support @<:@default=auto@:>@])])
AC_MSG_RESULT($enable_xzlib)
AC_MSG_CHECKING(for zstdlib support)
AC_ARG_ENABLE([zstdlib],
[AS_HELP_STRING([--disable-zstdlib], [disable zstdlib compression support @<:@default=auto@:>@])])
AC_MSG_RESULT($enable_zstdlib)
AC_MSG_CHECKING(for lzlib support)
AC_ARG_ENABLE([lzlib],
[AS_HELP_STRING([--disable-lzlib], [disable liblz (lzip) compression support @<:@default=auto@:>@])])
AC_MSG_RESULT($enable_lzlib)
AC_MSG_CHECKING(for libseccomp support)
AC_ARG_ENABLE([libseccomp],
[AS_HELP_STRING([--disable-libseccomp], [disable libseccomp sandboxing @<:@default=auto@:>@])])
AC_MSG_RESULT($enable_libseccomp)
AC_MSG_CHECKING(for file formats in man section 5)
AC_ARG_ENABLE(fsect-man5,
[ --enable-fsect-man5 enable file formats in man section 5],
[if test "${enableval}" = yes; then
AC_MSG_RESULT(yes)
fsect=5
else
AC_MSG_RESULT(no)
fsect=4
fi], [
# disable by default
AC_MSG_RESULT(no)
fsect=4
])
AC_CANONICAL_HOST
case "$host_os" in
mingw32*)
MINGW=1
;;
*)
MINGW=0
;;
esac
AC_SUBST(MINGW)
AM_CONDITIONAL(MINGW, test "$MINGW" = 1)
AC_SUBST([pkgdatadir], ['$(datadir)/misc'])
AC_SUBST(fsect)
AM_CONDITIONAL(FSECT5, test x$fsect = x5)
AC_SUBST(WARNINGS)
dnl Checks for programs.
AC_PROG_CC
AC_USE_SYSTEM_EXTENSIONS
AM_PROG_CC_C_O
AC_C_BIGENDIAN
AC_PROG_INSTALL
AC_PROG_LN_S
LT_INIT([disable-static pic-only])
gl_VISIBILITY
dnl Checks for headers
AC_HEADER_MAJOR
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(stdint.h fcntl.h inttypes.h unistd.h byteswap.h)
AC_CHECK_HEADERS(spawn.h utime.h wchar.h wctype.h)
AC_CHECK_HEADERS(getopt.h err.h xlocale.h)
AC_CHECK_HEADERS(sys/bswap.h sys/mman.h sys/stat.h sys/types.h sys/utime.h sys/time.h sys/sysmacros.h sys/ioctl.h)
if test "$enable_zlib" != "no"; then
AC_CHECK_HEADERS(zlib.h)
fi
if test "$enable_bzlib" != "no"; then
AC_CHECK_HEADERS(bzlib.h)
fi
if test "$enable_xzlib" != "no"; then
AC_CHECK_HEADERS(lzma.h)
fi
if test "$enable_zstdlib" != "no"; then
AC_CHECK_HEADERS(zstd.h zstd_errors.h)
fi
if test "$enable_lzlib" != "no"; then
AC_CHECK_HEADERS(lzlib.h)
fi
AC_CHECK_TYPE([sig_t],[AC_DEFINE([HAVE_SIG_T],1,[Have sig_t type])],,[#include <signal.h>])
dnl Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_CHECK_MEMBERS([struct stat.st_rdev])
AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[#include <time.h>])
AC_STRUCT_TIMEZONE
AC_STRUCT_TIMEZONE_DAYLIGHT
AC_SYS_LARGEFILE
AC_FUNC_FSEEKO
AC_TYPE_MBSTATE_T
AC_STRUCT_OPTION_GETOPT_H
AC_TYPE_PID_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_INT32_T
AC_TYPE_UINT64_T
AC_TYPE_INT64_T
AC_TYPE_INTPTR_T
AC_TYPE_UINTPTR_T
m4_ifdef([AC_SYS_YEAR2038], [AC_SYS_YEAR2038], [
# GNU libc only allows setting _TIME_BITS when FILE_OFFSET_BITS is also set.
# GNU libc defines __TIMESIZE on systems where _TIME_BITS can be set.
AS_IF([test X"$ac_cv_sys_file_offset_bits" = X"64"], [
AC_CHECK_DECL(__TIMESIZE, [
AC_DEFINE([_TIME_BITS], [64], [Number of bits in a timestamp, on hosts where this is settable.])
], [], [
AC_INCLUDES_DEFAULT
#include <time.h>
])
])
])
AC_FUNC_MMAP
AC_FUNC_FORK
AC_FUNC_MBRTOWC
AC_MSG_CHECKING(for gcc compiler warnings)
AC_ARG_ENABLE(warnings,
[ --disable-warnings disable compiler warnings],
[if test "${enableval}" = no -o "$GCC" = no; then
AC_MSG_RESULT(no)
WARNINGS=
else
AC_MSG_RESULT(yes)
WARNINGS="-Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith \
-Wmissing-declarations -Wredundant-decls -Wnested-externs \
-Wsign-compare -Wreturn-type -Wswitch -Wshadow \
-Wcast-qual -Wwrite-strings -Wextra -Wunused-parameter -Wformat=2"
fi], [
if test "$GCC" = yes; then
AC_MSG_RESULT(yes)
WARNINGS="-Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith \
-Wmissing-declarations -Wredundant-decls -Wnested-externs \
-Wsign-compare -Wreturn-type -Wswitch -Wshadow \
-Wcast-qual -Wwrite-strings -Wextra -Wunused-parameter -Wformat=2"
else
WARNINGS=
AC_MSG_RESULT(no)
fi])
dnl Checks for functions
AC_CHECK_FUNCS(strndup mkstemp mkostemp utimes utime wcwidth strtof newlocale uselocale freelocale memmem pipe2 posix_spawnp)
dnl Provide implementation of some required functions if necessary
AC_REPLACE_FUNCS(getopt_long asprintf vasprintf strlcpy strlcat getline ctime_r asctime_r localtime_r gmtime_r pread strcasestr fmtcheck dprintf)
dnl Checks for libraries
if test "$enable_zlib" != "no"; then
AC_CHECK_LIB(z, gzopen)
fi
if test "$enable_bzlib" != "no"; then
AC_CHECK_LIB(bz2, BZ2_bzCompressInit)
fi
if test "$enable_xzlib" != "no"; then
AC_CHECK_LIB(lzma, lzma_stream_decoder)
fi
if test "$enable_zstdlib" != "no"; then
AC_CHECK_LIB(zstd, ZSTD_createDStream)
fi
if test "$enable_lzlib" != "no"; then
AC_CHECK_LIB(lz, LZ_decompress_open)
fi
if test "$enable_libseccomp" != "no"; then
AC_CHECK_LIB(seccomp, seccomp_init)
fi
if test "$MINGW" = 1; then
AC_CHECK_LIB(gnurx,regexec,,AC_MSG_ERROR([libgnurx is required to build file(1) with MinGW]))
fi
dnl See if we are cross-compiling
AM_CONDITIONAL(IS_CROSS_COMPILE, test "$cross_compiling" = yes)
dnl Final sanity checks
if test "$enable_zlib" = "yes"; then
if test "$ac_cv_header_zlib_h$ac_cv_lib_z_gzopen" != "yesyes"; then
AC_MSG_ERROR([zlib support requested but not found])
fi
fi
if test "$ac_cv_header_zlib_h$ac_cv_lib_z_gzopen" = "yesyes"; then
AC_DEFINE([ZLIBSUPPORT], 1, [Enable zlib compression support])
fi
if test "$enable_bzlib" = "yes"; then
if test "$ac_cv_header_bzlib_h$ac_cv_lib_bz2_BZ2_bzCompressInit" != "yesyes"; then
AC_MSG_ERROR([bzlib support requested but not found])
fi
fi
if test "$ac_cv_header_bzlib_h$ac_cv_lib_bz2_BZ2_bzCompressInit" = "yesyes"; then
AC_DEFINE([BZLIBSUPPORT], 1, [Enable bzlib compression support])
fi
if test "$enable_xzlib" = "yes"; then
if test "$ac_cv_header_lzma_h$ac_cv_lib_lzma_lzma_stream_decoder" != "yesyes"; then
AC_MSG_ERROR([xzlib support requested but not found])
fi
fi
if test "$ac_cv_header_lzma_h$ac_cv_lib_lzma_lzma_stream_decoder" = "yesyes"; then
AC_DEFINE([XZLIBSUPPORT], 1, [Enable xzlib compression support])
fi
if test "$enable_zstdlib" = "yes"; then
if test "$ac_cv_header_zstd_h$ac_cv_lib_zstd_ZSTD_createDStream" != "yesyes"; then
AC_MSG_ERROR([zstdlib support requested but not found])
fi
fi
if test "$ac_cv_header_zstd_h$ac_cv_lib_zstd_ZSTD_createDStream" = "yesyes"; then
AC_DEFINE([ZSTDLIBSUPPORT], 1, [Enable zstdlib compression support])
fi
if test "$enable_lzlib" = "yes"; then
if test "$ac_cv_header_lzlib_h$ac_cv_lib_lz_LZ_decompress_open" != "yesyes"; then
AC_MSG_ERROR([lzlib support requested but not found])
fi
fi
if test "$ac_cv_header_lzlib_h$ac_cv_lib_lz_LZ_decompress_open" = "yesyes"; then
AC_DEFINE([LZLIBSUPPORT], 1, [Enable lzlib compression support])
fi
AC_CONFIG_FILES([Makefile src/Makefile magic/Makefile tests/Makefile doc/Makefile python/Makefile libmagic.pc])
AC_OUTPUT
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