configure.ac revision 1.103
1 # $NetBSD: configure.ac,v 1.103 2023/05/30 18:39:19 lukem Exp $ 2 # 3 # Autoconf definition file for libnbcompat. 4 # 5 # When you edit configure.ac: 6 # 0. Create the tools versions of autoconf and autoheader: 7 # cd ${SRCDIR} && ./build.sh -V MKMAINTAINERTOOLS=yes tools 8 # (This might not work if you try it after editing configure.ac.) 9 # 1. edit configure.ac 10 # 2. Regenerate "configure" and "nbtool_config.h.in" from "configure.ac": 11 # cd ${SRCDIR}/tools/compat && ${TOOLDIR}/bin/nbmake-${MACHINE} regen 12 # (Please don't use a non-tools version of autoconf or autoheader.) 13 # 3. Test that the tools still build: 14 # mv ${TOOLDIR} ${TOOLDIR}.bak 15 # cd ${SRCDIR} && ./build.sh -V MKMAINTAINERTOOLS=yes tools 16 # 4. cvs commit files that you edited. 17 # 5. Regen again, to pick up changed RCS IDs from the above commit: 18 # cd ${SRCDIR}/tools/compat && ${TOOLDIR}/bin/nbmake-${MACHINE} regen 19 # 6. cvs commit files that were generated. 20 # 21 22 AC_INIT([libnbcompat], [noversion], [lib-bug-people (a] NetBSD.org]) 23 AC_CONFIG_HEADERS([nbtool_config.h]) 24 AC_CONFIG_FILES([defs.mk]) 25 AC_CONFIG_MACRO_DIR([buildaux]) 26 27 m4_pattern_forbid([^AX_]) 28 m4_pattern_forbid([^NB_]) 29 30 # Autoheader header and footer 31 AH_TOP([/* $][NetBSD$ */ 32 33 #ifndef __NETBSD_NBTOOL_CONFIG_H__ 34 #define __NETBSD_NBTOOL_CONFIG_H__]) 35 36 AH_BOTTOM([#include "compat_defs.h" 37 #endif /* !__NETBSD_NBTOOL_CONFIG_H__ */]) 38 39 AC_DEFUN([NB_NETBSD], [dnl 40 AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl 41 AC_BEFORE([$0], [AC_RUN_IFELSE])dnl 42 AC_MSG_CHECKING([for NetBSD]) 43 AC_EGREP_CPP(yes, 44 [#ifdef __NetBSD__ 45 yes 46 #endif 47 ], 48 [AC_MSG_RESULT([yes]) 49 AC_DEFINE([_POSIX_SOURCE], 1, [Define for NetBSD headers.]) 50 AC_DEFINE([_POSIX_C_SOURCE], 200112L, [Define for NetBSD headers.]) 51 AC_DEFINE([_XOPEN_SOURCE], 600, [Define for NetBSD headers.])], 52 [AC_MSG_RESULT([no])]) 53 ])dnl NB_NETBSD 54 55 NB_NETBSD() 56 AC_PATH_PROG(BSHELL, sh, ) 57 if test x"$BSHELL" = x; then 58 AC_MSG_ERROR([sh must be somewhere on \$PATH]) 59 fi 60 AC_DEFINE_UNQUOTED([PATH_BSHELL], "$BSHELL", [Path to sh(1).]) 61 62 AC_C_BIGENDIAN() 63 AC_HEADER_STDC() 64 65 # Confirm existence of zlib. (This is available as a default install 66 # option on many OS's; this could be added as a reachover build in the 67 # future.) 68 AC_CHECK_HEADER(zlib.h,, 69 AC_MSG_ERROR([zlib must be installed in a compiler-visible path])) 70 AC_CHECK_LIB(z, gzdopen,, 71 AC_MSG_ERROR([zlib must be installed in a compiler-visible path])) 72 73 # Make sure certain required headers are available. 74 # These are not necessarily required by the code, but they are not 75 # currently conditionalized. 76 AC_CHECK_HEADERS(sys/ioctl.h sys/mman.h sys/param.h \ 77 sys/socket.h sys/stat.h sys/time.h sys/types.h sys/utsname.h \ 78 sys/wait.h assert.h ctype.h errno.h fcntl.h grp.h limits.h locale.h \ 79 netdb.h pwd.h signal.h stdarg.h stdio.h stdlib.h string.h \ 80 termios.h unistd.h,, 81 AC_MSG_ERROR([standard system header file not found])) 82 83 # Find headers that may not be available. 84 AC_HEADER_DIRENT() 85 AC_CHECK_HEADERS(sys/mtio.h sys/sysmacros.h sys/syslimits.h stdio_ext.h \ 86 getopt.h features.h malloc.h sys/poll.h pthread.h stddef.h sys/uio.h) 87 AC_CHECK_HEADERS(sys/bswap.h machine/bswap.h sys/cdefs.h machine/endian.h \ 88 sys/endian.h sys/featuretest.h err.h inttypes.h libgen.h paths.h \ 89 libgen.h stdint.h util.h resolv.h arpa/nameser.h,, 90 [test -f include/$ac_header || touch include/$ac_header]) 91 AC_CHECK_HEADERS(rpc/types.h,, 92 [echo '#include "nbtool_config.h"' >include/$ac_header.new 93 echo '#include "'$srcdir/../../common/include/$ac_header'"' \ 94 >>include/$ac_header.new 95 if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then 96 rm -f include/$ac_header.new 97 else 98 mv -f include/$ac_header.new include/$ac_header 99 fi]) 100 AC_CHECK_HEADERS(netconfig.h,, 101 [echo '#include "nbtool_config.h"' >include/$ac_header.new 102 echo '#include "'$srcdir/../../include/$ac_header'"' \ 103 >>include/$ac_header.new 104 if cmp include/$ac_header.new include/$ac_header >/dev/null 2>&1; then 105 rm -f include/$ac_header.new 106 else 107 mv -f include/$ac_header.new include/$ac_header 108 fi]) 109 110 # Typedefs. 111 AC_TYPE_SIZE_T() 112 AC_CHECK_TYPES([id_t, long long, u_long, u_char, u_short, u_int, u_quad_t]) 113 AC_CHECK_TYPES([uchar_t, ushort_t, uint_t, ulong_t]) 114 AC_CHECK_TYPE(socklen_t, [AC_DEFINE([HAVE_SOCKLEN_T], 1, 115 [Define if you have the socklen_t type.])],, 116 [#include <sys/types.h> 117 #ifdef HAVE_RPC_TYPES_H 118 #include <rpc/types.h> 119 #endif 120 #include <sys/socket.h>]) 121 122 AC_MSG_CHECKING([for enum uio_rw]) 123 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 124 #include <sys/types.h> 125 #ifdef HAVE_SYS_UIO_H 126 #include <sys/uio.h> 127 #endif]], 128 [[enum uio_rw rw;]])], 129 [AC_MSG_RESULT(yes) 130 AC_DEFINE([HAVE_ENUM_UIO_RW], 1, 131 [Define if you have the enum uio_rw type.])], 132 [AC_MSG_RESULT(no)]) 133 134 AC_MSG_CHECKING([for enum uio_seg]) 135 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 136 #include <sys/types.h> 137 #ifdef HAVE_SYS_UIO_H 138 #include <sys/uio.h> 139 #endif]], 140 [[enum uio_seg seg;]])], 141 [AC_MSG_RESULT(yes) 142 AC_DEFINE([HAVE_ENUM_UIO_SEG], 1, 143 [Define if you have the enum uio_seg type.])], 144 [AC_MSG_RESULT(no)]) 145 146 dnl XXX - This is UGLY. Need a better way to homogenize the bitsized types, 147 dnl including use of compiler primitive types via AC_CHECK_SIZEOF. 148 dnl 149 AC_DEFUN([NB_CHECK_INTTYPE], [dnl 150 AC_CHECK_TYPE(uint][$1][_t,, [ 151 AC_CHECK_TYPE(u_int][$1][_t, 152 AC_DEFINE(uint][$1][_t, u_int][$1][_t, \ 153 [Define if you have u_int][$1][_t, but not uint][$1][_t.]), 154 AC_MSG_ERROR([cannot find a suitable type for uint][$1][_t])) 155 ]) 156 AC_CHECK_TYPE(u_int][$1][_t,, [ 157 AC_CHECK_TYPE(uint][$1][_t, 158 AC_DEFINE(u_int][$1][_t, uint][$1][_t, \ 159 [Define if you have uint][$1][_t, but not u_int][$1][_t.]), 160 AC_MSG_ERROR([cannot find a suitable type for u_int][$1][_t])) 161 ]) 162 ])dnl NB_CHECK_INTTYPE 163 164 NB_CHECK_INTTYPE(8) 165 NB_CHECK_INTTYPE(16) 166 NB_CHECK_INTTYPE(32) 167 NB_CHECK_INTTYPE(64) 168 169 # Struct members. 170 AC_CHECK_MEMBERS([DIR.dd_fd, DIR.__dd_fd, struct dirent.d_namlen],,, 171 [#include <sys/types.h> 172 #include <dirent.h>]) 173 AC_CHECK_MEMBERS([struct stat.st_flags, struct stat.st_gen, 174 struct stat.st_birthtime, struct stat.st_birthtimensec, 175 struct stat.st_atim, struct stat.st_mtimensec],,, 176 [#include <sys/stat.h>]) 177 AC_CHECK_MEMBERS(struct statvfs.f_iosize,,, [#include <sys/statvfs.h>]) 178 AC_CHECK_MEMBERS(struct tm.tm_gmtoff,,, [#include <time.h>]) 179 180 # Global variable decls. 181 AC_CHECK_DECLS([asprintf, asnprintf, vasprintf, vasnprintf, vsnprintf, fgetln, fparseln, 182 fpurge, getdelim, getline, snprintf],,, [ 183 #include <stdio.h> 184 ]) 185 186 AC_CHECK_DECLS([atoll, heapsort, mkdtemp, mkstemp, reallocarr, reallocarray, 187 getsubopt, setenv, strtoi, strtoll, strtou, setprogname, 188 getprogname],,, [ 189 #include <stdlib.h> 190 ]) 191 192 AC_CHECK_DECLS([basename, dirname],,, [ 193 #include <libgen.h> 194 ]) 195 196 AC_CHECK_DECLS([raise_default_signal],,, [ 197 #include <util.h> 198 ]) 199 200 AC_CHECK_DECLS([issetugid, pread, pwrite],,, [ 201 #include <unistd.h> 202 ]) 203 204 AC_CHECK_DECLS([strmode],,, [ 205 #include <unistd.h> 206 #include <string.h> 207 ]) 208 209 AC_CHECK_DECLS([isblank],,, [ 210 #include <ctype.h> 211 ]) 212 213 214 AC_CHECK_DECLS([optind, optreset],,, [ 215 #include <stdio.h> 216 #include <stdlib.h> 217 #include <unistd.h> 218 #ifdef HAVE_GETOPT_H 219 #include <getopt.h> 220 #endif 221 ]) 222 AC_CHECK_DECLS(sys_signame,,, [#include <signal.h>]) 223 224 # Library functions (where a .h check isn't enough). 225 AC_FUNC_ALLOCA() 226 AC_CHECK_FUNCS(atoll asprintf asnprintf basename devname dirfd dirname \ 227 dispatch_semaphore_create \ 228 dprintf esetfunc fgetln flock fpurge __fpurge futimes getline \ 229 getopt getopt_long group_from_gid gid_from_group \ 230 heapsort isblank issetugid lchflags lchmod lchown lutimes mkstemp \ 231 mkdtemp poll pread putc_unlocked pwcache_userdb pwcache_groupdb \ 232 pwrite raise_default_signal random reallocarr reallocarray setenv \ 233 setgroupent setprogname setpassent \ 234 snprintb_m snprintf strlcat strlcpy strmode \ 235 strcasecmp strncasecmp strndup strnlen strsep strsuftoll strtoi \ 236 strtoll strtou \ 237 user_from_uid uid_from_user vasprintf vasnprintf vsnprintf) 238 239 AC_CHECK_DECLS([user_from_uid, uid_from_user, pwcache_userdb],,,[ 240 #include <pwd.h> 241 ]) 242 AC_CHECK_DECLS([group_from_gid, gid_from_group, pwcache_groupdb],,,[ 243 #include <grp.h> 244 ]) 245 AC_CHECK_DECLS([strcasecmp, strncasecmp, strlcpy, strlcat, strndup, 246 strnlen, strsep],,,[ 247 #include <string.h> 248 ]) 249 AC_CHECK_DECLS([strsuftoll, mi_vector_hash],,,[#include <stdlib.h>]) 250 AC_CHECK_DECLS([lchflags, lchmod, lchown],,,[ 251 #include <sys/stat.h> 252 #include <unistd.h> 253 ]) 254 255 AC_CHECK_DECLS([err, errc, errx, verrc, verrx, warn, warnc, warnx, vwarnc, 256 vwarnx],,,[ 257 #ifdef HAVE_ERR_H 258 #include <err.h> 259 #endif 260 ]) 261 262 AC_CHECK_DECLS([htobe16, htobe32, htobe64, htole16, htole32, htole64, 263 be16toh, be32toh, be64toh, le16toh, le32toh, le64toh],,, 264 [#include <sys/types.h>]) 265 266 AC_CHECK_DECLS([bswap16, bswap32, bswap64],,, [#include <machine/bswap.h>]) 267 268 AC_CHECK_DECLS([be16enc, le16enc, be16dec, le16dec, be32enc, le32enc, 269 be32dec, le32dec, be64enc, le64enc, be64dec, le64dec],,, 270 [#include <sys/endian.h>]) 271 272 AC_CHECK_DECLS([fstatvfs],,, [#include <sys/statvfs.h>]) 273 274 AC_CHECK_DECLS([setgroupent, setpassent],,, [ 275 #include <sys/types.h> 276 #include <grp.h> 277 #include <pwd.h> 278 ]) 279 280 # regcomp() and regexec() are also names of functions in the old V8 281 # regexp package. To avoid them, we need to find out who has regfree(). 282 283 dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition. 284 dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next. 285 AC_CHECK_LIB(regex, regfree) 286 AC_SEARCH_LIBS(regfree, rx posix) 287 288 AC_CHECK_LIB(rt, clock_gettime) 289 290 AC_CHECK_FUNCS(fparseln, [ 291 AC_MSG_CHECKING(if fparseln seems to work) 292 AC_RUN_IFELSE( 293 [AC_LANG_SOURCE([[ 294 #define _NETBSD_SOURCE 295 #include <stdio.h> 296 #include <stdlib.h> 297 #define CONFTEST "conftest.fparseln" 298 #define COMMENT '#' 299 int 300 main(void) 301 { 302 static const char delim[3] = { '\0', '\0', COMMENT }; 303 FILE *fp; 304 char *ptr; 305 fp = fopen(CONFTEST, "w+"); 306 if (fp != NULL) { 307 unlink(CONFTEST); 308 ungetc(COMMENT, fp); 309 ptr = fparseln(fp, NULL, NULL, delim, 310 FPARSELN_UNESCALL); 311 fclose(fp); 312 if (ptr == NULL) 313 exit(0); 314 } 315 exit(1); 316 } 317 ]])], 318 [AC_MSG_RESULT(yes)], 319 [AC_MSG_RESULT(no) 320 AC_DEFINE(BROKEN_FPARSELN, 1, 321 [Define to 1 if your 'fparseln' function is broken.])], 322 [AC_MSG_WARN([cross compiling: not checking farseln])] 323 ) 324 ]) 325 326 dnl 327 dnl Set per-warning CC_* variables if supported by HOST_CC. 328 dnl 329 330 dnl clang needs to fail if given an unknown -WWARN. 331 cc_fail_unknown= 332 AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option], 333 [AS_VAR_APPEND([cc_fail_unknown], [-Werror=unknown-warning-option])]) 334 335 AC_DEFUN([NB_CC_FLAG], [dnl 336 m4_pushdef([NB_FLAG], [$1]) 337 dnl gcc ignores unknown -Wno-WARN but will fail unknown equivalent -WWARN. 338 m4_pushdef([NB_WFLAG], m4_bpatsubst(NB_FLAG, [^-Wno-], [-W])) 339 m4_pushdef([NB_VAR], [CC]m4_translit(NB_FLAG, [-a-z], [_A-Z])) 340 AX_CHECK_COMPILE_FLAG(NB_WFLAG, [AS_VAR_SET(NB_VAR,NB_FLAG)], [], [$cc_fail_unknown]) 341 AC_SUBST(NB_VAR) 342 m4_popdef([NB_FLAG]) 343 m4_popdef([NB_WFLAG]) 344 m4_popdef([NB_VAR]) 345 ]) dnl NB_CC_FLAG 346 347 dnl Disable use of pre-compiled headers on Darwin. 348 NB_CC_FLAG([-no-cpp-precomp]) 349 350 351 AC_OUTPUT() 352 353 # Display results 354 # 355 AC_MSG_NOTICE([========= Configuration results =========]) 356 AC_MSG_NOTICE([CC $CC]) 357 AC_MSG_NOTICE([CC_NO_CPP_PRECOMP $CC_NO_CPP_PRECOMP]) 358 AC_MSG_NOTICE([LIBS $LIBS]) 359 AC_MSG_NOTICE([=========================================]) 360
Indexes created Fri Sep 26 20:09:58 GMT 2025