AC_DEFUN_ONCE(AC_LIBREPLACE_LOCATION_CHECKS, [ echo "LIBREPLACE_LOCATION_CHECKS: START" dnl find the libreplace sources. This is meant to work both for dnl libreplace standalone builds, and builds of packages using libreplace libreplacedir="" libreplacepaths="$srcdir $srcdir/lib/replace $srcdir/libreplace $srcdir/../libreplace $srcdir/../replace $srcdir/../lib/replace $srcdir/../../../lib/replace" for d in $libreplacepaths; do if test -f "$d/replace.c"; then libreplacedir="$d" AC_SUBST(libreplacedir) break; fi done if test x"$libreplacedir" = "x"; then AC_MSG_ERROR([cannot find libreplace in $libreplacepaths]) fi LIBREPLACEOBJ="replace.o" AC_SUBST(LIBREPLACEOBJ) AC_CANONICAL_BUILD AC_CANONICAL_HOST AC_CANONICAL_TARGET echo "LIBREPLACE_LOCATION_CHECKS: END" ]) dnl end AC_LIBREPLACE_LOCATION_CHECKS AC_DEFUN_ONCE(AC_LIBREPLACE_BROKEN_CHECKS, [ echo "LIBREPLACE_BROKEN_CHECKS: START" dnl find the libreplace sources. This is meant to work both for dnl libreplace standalone builds, and builds of packages using libreplace libreplacedir="" libreplacepaths="$srcdir $srcdir/lib/replace $srcdir/libreplace $srcdir/../libreplace $srcdir/../replace $srcdir/../lib/replace $srcdir/../../../lib/replace" for d in $libreplacepaths; do if test -f "$d/replace.c"; then libreplacedir="$d" AC_SUBST(libreplacedir) break; fi done if test x"$libreplacedir" = "x"; then AC_MSG_ERROR([cannot find libreplace in $libreplacepaths]) fi LIBREPLACEOBJ="replace.o" AC_SUBST(LIBREPLACEOBJ) LIBREPLACEOBJ="${LIBREPLACEOBJ} snprintf.o" AC_TYPE_SIGNAL AC_TYPE_UID_T AC_TYPE_MODE_T AC_TYPE_OFF_T AC_TYPE_SIZE_T AC_TYPE_PID_T AC_STRUCT_ST_RDEV AC_CHECK_TYPE(ino_t,unsigned) AC_CHECK_TYPE(loff_t,off_t) AC_CHECK_TYPE(offset_t,loff_t) AC_FUNC_MEMCMP AC_CHECK_FUNCS(pipe strftime srandom random srand rand usleep setbuffer lstat getpgrp) AC_CHECK_HEADERS(stdbool.h stdint.h sys/select.h) AC_CHECK_HEADERS(setjmp.h) LIBREPLACE_PROVIDE_HEADER([stdint.h]) LIBREPLACE_PROVIDE_HEADER([stdbool.h]) AC_CHECK_TYPE(bool, [AC_DEFINE(HAVE_BOOL, 1, [Whether the bool type is available])],, [ AC_INCLUDES_DEFAULT #ifdef HAVE_STDBOOL_H #include <stdbool.h> #endif] ) AC_CHECK_TYPE(_Bool, [AC_DEFINE(HAVE__Bool, 1, [Whether the _Bool type is available])],, [ AC_INCLUDES_DEFAULT #ifdef HAVE_STDBOOL_H #include <stdbool.h> #endif] ) AC_CACHE_CHECK([for working mmap],libreplace_cv_HAVE_MMAP,[ AC_TRY_RUN([#include "$libreplacedir/test/shared_mmap.c"], libreplace_cv_HAVE_MMAP=yes,libreplace_cv_HAVE_MMAP=no,libreplace_cv_HAVE_MMAP=cross)]) if test x"$libreplace_cv_HAVE_MMAP" = x"yes"; then AC_DEFINE(HAVE_MMAP,1,[Whether mmap works]) fi AC_CHECK_HEADERS(sys/syslog.h syslog.h) AC_CHECK_HEADERS(sys/time.h time.h) AC_CHECK_HEADERS(stdarg.h vararg.h) AC_CHECK_HEADERS(sys/mount.h mntent.h) AC_CHECK_HEADERS(stropts.h) AC_CHECK_FUNCS(seteuid setresuid setegid setresgid chroot bzero strerror) AC_CHECK_FUNCS(vsyslog setlinebuf mktime ftruncate chsize rename) AC_CHECK_FUNCS(waitpid strlcpy strlcat initgroups memmove strdup) AC_CHECK_FUNCS(pread pwrite strndup strcasestr strtok_r mkdtemp) AC_CHECK_FUNCS(isatty) AC_HAVE_DECL(setresuid, [#include <unistd.h>]) AC_HAVE_DECL(setresgid, [#include <unistd.h>]) AC_HAVE_DECL(errno, [#include <errno.h>]) AC_CACHE_CHECK([for secure mkstemp],libreplace_cv_HAVE_SECURE_MKSTEMP,[ AC_TRY_RUN([#include <stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> main() { struct stat st; char tpl[20]="/tmp/test.XXXXXX"; int fd = mkstemp(tpl); if (fd == -1) exit(1); unlink(tpl); if (fstat(fd, &st) != 0) exit(1); if ((st.st_mode & 0777) != 0600) exit(1); exit(0); }], libreplace_cv_HAVE_SECURE_MKSTEMP=yes, libreplace_cv_HAVE_SECURE_MKSTEMP=no, libreplace_cv_HAVE_SECURE_MKSTEMP=cross)]) if test x"$libreplace_cv_HAVE_SECURE_MKSTEMP" = x"yes"; then AC_DEFINE(HAVE_SECURE_MKSTEMP,1,[Whether mkstemp is secure]) fi dnl Provided by snprintf.c: AC_CHECK_HEADERS(stdio.h strings.h) AC_CHECK_DECLS([snprintf, vsnprintf, asprintf, vasprintf]) AC_CHECK_FUNCS(snprintf vsnprintf asprintf vasprintf) AC_CACHE_CHECK([for C99 vsnprintf],libreplace_cv_HAVE_C99_VSNPRINTF,[ AC_TRY_RUN([ #include <sys/types.h> #include <stdio.h> #include <stdarg.h> #include <stdlib.h> void foo(const char *format, ...) { va_list ap; int len; char buf[20]; long long l = 1234567890; l *= 100; va_start(ap, format); len = vsnprintf(buf, 0, format, ap); va_end(ap); if (len != 5) exit(1); va_start(ap, format); len = vsnprintf(0, 0, format, ap); va_end(ap); if (len != 5) exit(2); if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(3); if (snprintf(buf, 20, "%lld", l) != 12 || strcmp(buf, "123456789000") != 0) exit(4); if (snprintf(buf, 20, "%zu", 123456789) != 9 || strcmp(buf, "123456789") != 0) exit(5); if (snprintf(buf, 20, "%2\$d %1\$d", 3, 4) != 3 || strcmp(buf, "4 3") != 0) exit(6); if (snprintf(buf, 20, "%s", 0) < 3) exit(7); exit(0); } main() { foo("hello"); } ], libreplace_cv_HAVE_C99_VSNPRINTF=yes,libreplace_cv_HAVE_C99_VSNPRINTF=no,libreplace_cv_HAVE_C99_VSNPRINTF=cross)]) if test x"$libreplace_cv_HAVE_C99_VSNPRINTF" = x"yes"; then AC_DEFINE(HAVE_C99_VSNPRINTF,1,[Whether there is a C99 compliant vsnprintf]) fi dnl VA_COPY AC_CACHE_CHECK([for va_copy],libreplace_cv_HAVE_VA_COPY,[ AC_TRY_LINK([#include <stdarg.h> va_list ap1,ap2;], [va_copy(ap1,ap2);], libreplace_cv_HAVE_VA_COPY=yes,libreplace_cv_HAVE_VA_COPY=no)]) if test x"$libreplace_cv_HAVE_VA_COPY" = x"yes"; then AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available]) fi if test x"$libreplace_cv_HAVE_VA_COPY" != x"yes"; then AC_CACHE_CHECK([for __va_copy],libreplace_cv_HAVE___VA_COPY,[ AC_TRY_LINK([#include <stdarg.h> va_list ap1,ap2;], [__va_copy(ap1,ap2);], libreplace_cv_HAVE___VA_COPY=yes,libreplace_cv_HAVE___VA_COPY=no)]) if test x"$libreplace_cv_HAVE___VA_COPY" = x"yes"; then AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available]) fi fi dnl __FUNCTION__ macro AC_CACHE_CHECK([for __FUNCTION__ macro],libreplace_cv_HAVE_FUNCTION_MACRO,[ AC_TRY_COMPILE([#include <stdio.h>], [printf("%s\n", __FUNCTION__);], libreplace_cv_HAVE_FUNCTION_MACRO=yes,libreplace_cv_HAVE_FUNCTION_MACRO=no)]) if test x"$libreplace_cv_HAVE_FUNCTION_MACRO" = x"yes"; then AC_DEFINE(HAVE_FUNCTION_MACRO,1,[Whether there is a __FUNCTION__ macro]) else dnl __func__ macro AC_CACHE_CHECK([for __func__ macro],libreplace_cv_HAVE_func_MACRO,[ AC_TRY_COMPILE([#include <stdio.h>], [printf("%s\n", __func__);], libreplace_cv_HAVE_func_MACRO=yes,libreplace_cv_HAVE_func_MACRO=no)]) if test x"$libreplace_cv_HAVE_func_MACRO" = x"yes"; then AC_DEFINE(HAVE_func_MACRO,1,[Whether there is a __func__ macro]) fi fi AC_CHECK_HEADERS([sys/param.h limits.h]) AC_CHECK_TYPE(comparison_fn_t, [AC_DEFINE(HAVE_COMPARISON_FN_T, 1,[Whether or not we have comparison_fn_t])]) AC_HAVE_DECL(setenv, [#include <stdlib.h>]) AC_CHECK_FUNCS(setenv unsetenv) AC_CHECK_FUNCS(strnlen) AC_CHECK_FUNCS(strtoull __strtoull strtouq strtoll __strtoll strtoq) # this test disabled as we don't actually need __VA_ARGS__ yet AC_TRY_CPP([ #define eprintf(...) fprintf(stderr, __VA_ARGS__) eprintf("bla", "bar"); ], AC_DEFINE(HAVE__VA_ARGS__MACRO, 1, [Whether the __VA_ARGS__ macro is available])) AC_CACHE_CHECK([for sig_atomic_t type],libreplace_cv_sig_atomic_t, [ AC_TRY_COMPILE([ #include <sys/types.h> #if STDC_HEADERS #include <stdlib.h> #include <stddef.h> #endif #include <signal.h>],[sig_atomic_t i = 0], libreplace_cv_sig_atomic_t=yes,libreplace_cv_sig_atomic_t=no)]) if test x"$libreplace_cv_sig_atomic_t" = x"yes"; then AC_DEFINE(HAVE_SIG_ATOMIC_T_TYPE,1,[Whether we have the atomic_t variable type]) fi AC_CACHE_CHECK([for O_DIRECT flag to open(2)],libreplace_cv_HAVE_OPEN_O_DIRECT,[ AC_TRY_COMPILE([ #include <unistd.h> #ifdef HAVE_FCNTL_H #include <fcntl.h> #endif], [int fd = open("/dev/null", O_DIRECT);], libreplace_cv_HAVE_OPEN_O_DIRECT=yes,libreplace_cv_HAVE_OPEN_O_DIRECT=no)]) if test x"$libreplace_cv_HAVE_OPEN_O_DIRECT" = x"yes"; then AC_DEFINE(HAVE_OPEN_O_DIRECT,1,[Whether the open(2) accepts O_DIRECT]) fi dnl Check if the C compiler understands volatile (it should, being ANSI). AC_CACHE_CHECK([that the C compiler understands volatile],libreplace_cv_volatile, [ AC_TRY_COMPILE([#include <sys/types.h>],[volatile int i = 0], libreplace_cv_volatile=yes,libreplace_cv_volatile=no)]) if test x"$libreplace_cv_volatile" = x"yes"; then AC_DEFINE(HAVE_VOLATILE, 1, [Whether the C compiler understands volatile]) fi m4_include(system/config.m4) m4_include(dlfcn.m4) m4_include(getpass.m4) m4_include(strptime.m4) m4_include(win32.m4) m4_include(timegm.m4) m4_include(repdir.m4) m4_include(crypt.m4) AC_CHECK_FUNCS([syslog printf memset memcpy],,[AC_MSG_ERROR([Required function not found])]) echo "LIBREPLACE_BROKEN_CHECKS: END" ]) dnl end AC_LIBREPLACE_BROKEN_CHECKS AC_DEFUN_ONCE(AC__LIBREPLACE_ALL_CHECKS_START, [ #LIBREPLACE_ALL_CHECKS: START" ]) AC_DEFUN_ONCE(AC__LIBREPLACE_ALL_CHECKS_END, [ #LIBREPLACE_ALL_CHECKS: END" ]) m4_define(AC_LIBREPLACE_ALL_CHECKS, [ AC__LIBREPLACE_ALL_CHECKS_START AC_LIBREPLACE_LOCATION_CHECKS AC_LIBREPLACE_CC_CHECKS AC_LIBREPLACE_BROKEN_CHECKS AC__LIBREPLACE_ALL_CHECKS_END CFLAGS="$CFLAGS -I$libreplacedir" ]) m4_include(libreplace_cc.m4) m4_include(libreplace_ld.m4) m4_include(libreplace_network.m4) m4_include(libreplace_macros.m4) m4_ifndef([AC_USE_SYSTEM_EXTENSIONS],[m4_include(autoconf-2.60.m4)])