AC_SUBST(CXXCPP)dnl
])
+
dnl Require finding the C or C++ preprocessor, whichever is the
dnl current language.
AC_DEFUN(AC_REQUIRE_CPP,
C, [AC_REQUIRE([AC_PROG_CPP])],
[AC_REQUIRE([AC_PROG_CXXCPP])])])
+
dnl AC_PROG_LEX
dnl -----------
AC_DEFUN(AC_PROG_LEX,
fi
AC_SUBST(LEXLIB)])
+
dnl AC_DECL_YYTEXT
dnl --------------
dnl Check if lex declares yytext as a char * by default, not a char[].
fi
])dnl AC_DECL_YYTEXT
+
dnl AC_PROG_INSTALL
dnl ---------------
AC_DEFUN(AC_PROG_INSTALL,
])dnl AC_PROG_INSTALL
+dnl AC_PROG_LN_S
+dnl ------------
AC_DEFUN(AC_PROG_LN_S,
[AC_MSG_CHECKING(whether ln -s works)
AC_CACHE_VAL(ac_cv_prog_LN_S,
AC_MSG_RESULT(no)
fi
AC_SUBST(LN_S)dnl
-])
+])dnl AC_PROG_LN_S
+
define(AC_RSH,
[AC_FATAL([$0 has been removed; replace it with equivalent code], 4)])
dnl ### Checks for header files
+
dnl AC_HEADER_STDC
dnl --------------
AC_DEFUN(AC_HEADER_STDC,
fi
])
+
dnl AC_CHECK_HEADERS_DIRENT(HEADER-FILE... [, ACTION])
dnl --------------------------------------------------
dnl Like AC_CHECK_HEADERS, except succeed only for a HEADER-FILE that
fi
])dnl AC_HEADER_STAT
+
dnl AC_DECL_SYS_SIGLIST
dnl -------------------
AC_DEFUN(AC_DECL_SYS_SIGLIST,
fi
])
+
dnl AC_FUNC_FNMATCH
dnl ---------------
dnl We look for fnmatch.h to avoid that the test fails in C++.
#endif
int
-main()
+main ()
{
- char *data, *data2, *data3;
- int i, pagesize;
- int fd;
-
- pagesize = getpagesize();
-
- /*
- * First, make a file with some known garbage in it.
- */
- data = malloc(pagesize);
- if (!data)
- exit(1);
- for (i = 0; i < pagesize; ++i)
- *(data + i) = rand();
- umask(0);
- fd = creat("conftestmmap", 0600);
- if (fd < 0)
- exit(1);
- if (write(fd, data, pagesize) != pagesize)
- exit(1);
- close(fd);
-
- /*
- * Next, try to mmap the file at a fixed address which
- * already has something else allocated at it. If we can,
- * also make sure that we see the same garbage.
- */
- fd = open("conftestmmap", O_RDWR);
- if (fd < 0)
- exit(1);
- data2 = malloc(2 * pagesize);
- if (!data2)
- exit(1);
- data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
- if (data2 != mmap(data2, pagesize, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_FIXED, fd, 0L))
- exit(1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data2 + i))
- exit(1);
-
- /*
- * Finally, make sure that changes to the mapped area
- * do not percolate back to the file as seen by read().
- * (This is a bug on some variants of i386 svr4.0.)
- */
- for (i = 0; i < pagesize; ++i)
- *(data2 + i) = *(data2 + i) + 1;
- data3 = malloc(pagesize);
- if (!data3)
- exit(1);
- if (read(fd, data3, pagesize) != pagesize)
- exit(1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data3 + i))
- exit(1);
- close(fd);
- unlink("conftestmmap");
- exit(0);
+ char *data, *data2, *data3;
+ int i, pagesize;
+ int fd;
+
+ pagesize = getpagesize ();
+
+ /* First, make a file with some known garbage in it. */
+ data = malloc (pagesize);
+ if (!data)
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ *(data + i) = rand ();
+ umask (0);
+ fd = creat ("conftestmmap", 0600);
+ if (fd < 0)
+ exit (1);
+ if (write (fd, data, pagesize) != pagesize)
+ exit (1);
+ close (fd);
+
+ /* Next, try to mmap the file at a fixed address which already has
+ something else allocated at it. If we can, also make sure that
+ we see the same garbage. */
+ fd = open ("conftestmmap", O_RDWR);
+ if (fd < 0)
+ exit (1);
+ data2 = malloc (2 * pagesize);
+ if (!data2)
+ exit (1);
+ data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
+ if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_FIXED, fd, 0L))
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data2 + i))
+ exit (1);
+
+ /* Finally, make sure that changes to the mapped area do not
+ percolate back to the file as seen by read(). (This is a bug on
+ some variants of i386 svr4.0.) */
+ for (i = 0; i < pagesize; ++i)
+ *(data2 + i) = *(data2 + i) + 1;
+ data3 = malloc (pagesize);
+ if (!data3)
+ exit (1);
+ if (read (fd, data3, pagesize) != pagesize)
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data3 + i))
+ exit (1);
+ close (fd);
+ unlink ("conftestmmap");
+ exit (0);
}], ac_cv_func_mmap_fixed_mapped=yes, ac_cv_func_mmap_fixed_mapped=no,
ac_cv_func_mmap_fixed_mapped=no)])
if test $ac_cv_func_mmap_fixed_mapped = yes; then
dnl ---------------
AC_DEFUN(AC_FUNC_GETPGRP,
[AC_CACHE_CHECK(whether getpgrp takes no argument, ac_cv_func_getpgrp_void,
-[AC_TRY_RUN([
-/*
+[AC_TRY_RUN(
+[/*
* If this system has a BSD-style getpgrp(),
* which takes a pid argument, exit unsuccessfully.
*
fi
AC_CACHE_CHECK([for alloca], ac_cv_func_alloca_works,
-[AC_TRY_LINK([
-#ifdef __GNUC__
+[AC_TRY_LINK(
+[#ifdef __GNUC__
# define alloca __builtin_alloca
#else
# ifdef _MSC_VER
AC_SUBST(CXXCPP)dnl
])
+
dnl Require finding the C or C++ preprocessor, whichever is the
dnl current language.
AC_DEFUN(AC_REQUIRE_CPP,
C, [AC_REQUIRE([AC_PROG_CPP])],
[AC_REQUIRE([AC_PROG_CXXCPP])])])
+
dnl AC_PROG_LEX
dnl -----------
AC_DEFUN(AC_PROG_LEX,
fi
AC_SUBST(LEXLIB)])
+
dnl AC_DECL_YYTEXT
dnl --------------
dnl Check if lex declares yytext as a char * by default, not a char[].
fi
])dnl AC_DECL_YYTEXT
+
dnl AC_PROG_INSTALL
dnl ---------------
AC_DEFUN(AC_PROG_INSTALL,
])dnl AC_PROG_INSTALL
+dnl AC_PROG_LN_S
+dnl ------------
AC_DEFUN(AC_PROG_LN_S,
[AC_MSG_CHECKING(whether ln -s works)
AC_CACHE_VAL(ac_cv_prog_LN_S,
AC_MSG_RESULT(no)
fi
AC_SUBST(LN_S)dnl
-])
+])dnl AC_PROG_LN_S
+
define(AC_RSH,
[AC_FATAL([$0 has been removed; replace it with equivalent code], 4)])
dnl ### Checks for header files
+
dnl AC_HEADER_STDC
dnl --------------
AC_DEFUN(AC_HEADER_STDC,
fi
])
+
dnl AC_CHECK_HEADERS_DIRENT(HEADER-FILE... [, ACTION])
dnl --------------------------------------------------
dnl Like AC_CHECK_HEADERS, except succeed only for a HEADER-FILE that
fi
])dnl AC_HEADER_STAT
+
dnl AC_DECL_SYS_SIGLIST
dnl -------------------
AC_DEFUN(AC_DECL_SYS_SIGLIST,
fi
])
+
dnl AC_FUNC_FNMATCH
dnl ---------------
dnl We look for fnmatch.h to avoid that the test fails in C++.
#endif
int
-main()
+main ()
{
- char *data, *data2, *data3;
- int i, pagesize;
- int fd;
-
- pagesize = getpagesize();
-
- /*
- * First, make a file with some known garbage in it.
- */
- data = malloc(pagesize);
- if (!data)
- exit(1);
- for (i = 0; i < pagesize; ++i)
- *(data + i) = rand();
- umask(0);
- fd = creat("conftestmmap", 0600);
- if (fd < 0)
- exit(1);
- if (write(fd, data, pagesize) != pagesize)
- exit(1);
- close(fd);
-
- /*
- * Next, try to mmap the file at a fixed address which
- * already has something else allocated at it. If we can,
- * also make sure that we see the same garbage.
- */
- fd = open("conftestmmap", O_RDWR);
- if (fd < 0)
- exit(1);
- data2 = malloc(2 * pagesize);
- if (!data2)
- exit(1);
- data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
- if (data2 != mmap(data2, pagesize, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_FIXED, fd, 0L))
- exit(1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data2 + i))
- exit(1);
-
- /*
- * Finally, make sure that changes to the mapped area
- * do not percolate back to the file as seen by read().
- * (This is a bug on some variants of i386 svr4.0.)
- */
- for (i = 0; i < pagesize; ++i)
- *(data2 + i) = *(data2 + i) + 1;
- data3 = malloc(pagesize);
- if (!data3)
- exit(1);
- if (read(fd, data3, pagesize) != pagesize)
- exit(1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data3 + i))
- exit(1);
- close(fd);
- unlink("conftestmmap");
- exit(0);
+ char *data, *data2, *data3;
+ int i, pagesize;
+ int fd;
+
+ pagesize = getpagesize ();
+
+ /* First, make a file with some known garbage in it. */
+ data = malloc (pagesize);
+ if (!data)
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ *(data + i) = rand ();
+ umask (0);
+ fd = creat ("conftestmmap", 0600);
+ if (fd < 0)
+ exit (1);
+ if (write (fd, data, pagesize) != pagesize)
+ exit (1);
+ close (fd);
+
+ /* Next, try to mmap the file at a fixed address which already has
+ something else allocated at it. If we can, also make sure that
+ we see the same garbage. */
+ fd = open ("conftestmmap", O_RDWR);
+ if (fd < 0)
+ exit (1);
+ data2 = malloc (2 * pagesize);
+ if (!data2)
+ exit (1);
+ data2 += (pagesize - ((int) data2 & (pagesize - 1))) & (pagesize - 1);
+ if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_FIXED, fd, 0L))
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data2 + i))
+ exit (1);
+
+ /* Finally, make sure that changes to the mapped area do not
+ percolate back to the file as seen by read(). (This is a bug on
+ some variants of i386 svr4.0.) */
+ for (i = 0; i < pagesize; ++i)
+ *(data2 + i) = *(data2 + i) + 1;
+ data3 = malloc (pagesize);
+ if (!data3)
+ exit (1);
+ if (read (fd, data3, pagesize) != pagesize)
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data3 + i))
+ exit (1);
+ close (fd);
+ unlink ("conftestmmap");
+ exit (0);
}], ac_cv_func_mmap_fixed_mapped=yes, ac_cv_func_mmap_fixed_mapped=no,
ac_cv_func_mmap_fixed_mapped=no)])
if test $ac_cv_func_mmap_fixed_mapped = yes; then
dnl ---------------
AC_DEFUN(AC_FUNC_GETPGRP,
[AC_CACHE_CHECK(whether getpgrp takes no argument, ac_cv_func_getpgrp_void,
-[AC_TRY_RUN([
-/*
+[AC_TRY_RUN(
+[/*
* If this system has a BSD-style getpgrp(),
* which takes a pid argument, exit unsuccessfully.
*
fi
AC_CACHE_CHECK([for alloca], ac_cv_func_alloca_works,
-[AC_TRY_LINK([
-#ifdef __GNUC__
+[AC_TRY_LINK(
+[#ifdef __GNUC__
# define alloca __builtin_alloca
#else
# ifdef _MSC_VER
projects / thirdparty / autoconf.git / commitdiff
