dnl Local m4 macros for autoconf (used by sudo)
dnl
-dnl Copyright (c) 1994-1996, 1998-2005, 2007-2011
+dnl Copyright (c) 1994-1996, 1998-2005, 2007-2013
dnl Todd C. Miller <Todd.Miller@courtesan.com>
dnl
dnl XXX - should cache values in all cases!!!
AC_MSG_RESULT($iolog_dir)
])dnl
-dnl
-dnl SUDO_CHECK_TYPE(TYPE, DEFAULT)
-dnl XXX - should require the check for unistd.h...
-dnl
-AC_DEFUN([SUDO_CHECK_TYPE],
-[AC_REQUIRE([AC_HEADER_STDC])dnl
-AC_MSG_CHECKING(for $1)
-AC_CACHE_VAL(sudo_cv_type_$1,
-[AC_EGREP_CPP($1, [#include <sys/types.h>
-#include <stdio.h>
-#if STDC_HEADERS
-#include <stdlib.h>
-#endif
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif], sudo_cv_type_$1=yes, sudo_cv_type_$1=no)])dnl
-AC_MSG_RESULT($sudo_cv_type_$1)
-if test $sudo_cv_type_$1 = no; then
- AC_DEFINE($1, $2, [Define if your system lacks the $1 type.])
-fi
-])
-
-dnl
-dnl Check for size_t declation
-dnl
-AC_DEFUN([SUDO_TYPE_SIZE_T],
-[SUDO_CHECK_TYPE(size_t, int)])
-
-dnl
-dnl Check for ssize_t declation
-dnl
-AC_DEFUN([SUDO_TYPE_SSIZE_T],
-[SUDO_CHECK_TYPE(ssize_t, int)])
-
-dnl
-dnl Check for dev_t declation
-dnl
-AC_DEFUN([SUDO_TYPE_DEV_T],
-[SUDO_CHECK_TYPE(dev_t, int)])
-
-dnl
-dnl Check for ino_t declation
-dnl
-AC_DEFUN([SUDO_TYPE_INO_T],
-[SUDO_CHECK_TYPE(ino_t, unsigned int)])
-
dnl
dnl check for working fnmatch(3)
dnl
AC_MSG_RESULT($sudo_cv_func_fnmatch)
AS_IF([test $sudo_cv_func_fnmatch = yes], [$1], [$2])])
+dnl
+dnl Attempt to check for working PIE support.
+dnl This is a bit of a hack but on Solaris 10 with GNU ld and GNU as
+dnl we can end up with strange values from malloc().
+dnl A better check would be to verify that ASLR works with PIE.
+dnl
+AC_DEFUN([SUDO_WORKING_PIE],
+[AC_MSG_CHECKING([for working PIE support])
+AC_CACHE_VAL(sudo_cv_working_pie,
+[rm -f conftestdata; > conftestdata
+AC_TRY_RUN(AC_INCLUDES_DEFAULT([])
+[main() { char *p = malloc(1024); if (p == NULL) return 1; memset(p, 0, 1024); return 0; }], [sudo_cv_working_pie=yes], [sudo_cv_working_pie=no],
+ [sudo_cv_working_pie=no])
+rm -f core core.* *.core])
+AC_MSG_RESULT($sudo_cv_working_pie)
+AS_IF([test $sudo_cv_working_pie = yes], [$1], [$2])])
+
dnl
dnl check for isblank(3)
dnl
fi
])
+AC_DEFUN([SUDO_CHECK_LIB], [
+ _sudo_check_lib_extras=`echo "$5"|sed -e 's/[ ]*//g' -e 's/-l/_/g'`
+ AC_MSG_CHECKING([for $2 in -l$1${5+ }$5])
+ AC_CACHE_VAL([sudo_cv_lib_$1''_$2$_sudo_check_lib_extras], [
+ SUDO_CHECK_LIB_OLIBS="$LIBS"
+ LIBS="$LIBS -l$1${5+ }$5"
+ AC_LINK_IFELSE(
+ [AC_LANG_CALL([], [$2])],
+ [eval sudo_cv_lib_$1''_$2$_sudo_check_lib_extras=yes],
+ [eval sudo_cv_lib_$1''_$2$_sudo_check_lib_extras=no]
+ )
+ LIBS="$SUDO_CHECK_LIB_OLIBS"
+ ])
+ if eval test \$sudo_cv_lib_$1''_$2$_sudo_check_lib_extras = "yes"; then
+ AC_MSG_RESULT([yes])
+ $3
+ else
+ AC_MSG_RESULT([no])
+ $4
+ fi
+])
+
dnl
dnl check unsetenv() return value
dnl
fi
])
+dnl
+dnl check putenv() argument for const
+dnl
+AC_DEFUN([SUDO_FUNC_PUTENV_CONST],
+[AC_CACHE_CHECK([whether putenv takes a const argument],
+sudo_cv_func_putenv_const,
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+int putenv(const char *string) {return 0;}], [])],
+ [sudo_cv_func_putenv_const=yes],
+ [sudo_cv_func_putenv_const=no])
+ ])
+ if test $sudo_cv_func_putenv_const = yes; then
+ AC_DEFINE(PUTENV_CONST, const, [Define to const if the `putenv' takes a const argument.])
+ else
+ AC_DEFINE(PUTENV_CONST, [])
+ fi
+])
+
dnl
dnl check for sa_len field in struct sockaddr
dnl
AC_DEFUN([SUDO_SOCK_SA_LEN], [
AC_CHECK_MEMBER([struct sockaddr.sa_len],
- [AC_DEFINE(HAVE_SA_LEN, 1, [Define if your struct sockadr has an sa_len field.])],
+ [AC_DEFINE(HAVE_STRUCT_SOCKADDR_SA_LEN, 1, [Define if your struct sockadr has an sa_len field.])],
[],
[ #include <sys/types.h>
#include <sys/socket.h>]
])
dnl
-dnl append a libpath to an LDFLAGS style variable
+dnl Append a libpath to an LDFLAGS style variable if not already present.
+dnl Also appends to the _R version unless rpath is disabled.
dnl
AC_DEFUN([SUDO_APPEND_LIBPATH], [
- if test X"$with_rpath" = X"yes"; then
- case "$host" in
- *-*-hpux*) $1="${$1} -L$2 -Wl,+b,$2"
- ;;
- *) $1="${$1} -L$2 -Wl,-R$2"
- ;;
- esac
- else
- $1="${$1} -L$2"
- fi
- if test X"$blibpath" != X"" -a "$1" = "SUDO_LDFLAGS"; then
- blibpath_add="${blibpath_add}:$2"
- fi
+ case "${$1}" in
+ *"-L$2"|*"-L$2 ")
+ ;;
+ *)
+ $1="${$1} -L$2"
+ if test X"$enable_rpath" = X"yes"; then
+ $1_R="${$1_R} -R$2"
+ fi
+ ;;
+ esac
+])
+
+dnl
+dnl Append a directory to CPPFLAGS if not already present.
+dnl
+AC_DEFUN([SUDO_APPEND_CPPFLAGS], [
+ case "${CPPFLAGS}" in
+ *"$1"|*"$1 ")
+ ;;
+ *)
+ if test X"${CPPFLAGS}" = X""; then
+ CPPFLAGS="$1"
+ else
+ CPPFLAGS="${CPPFLAGS} $1"
+ fi
+ ;;
+ esac
])
dnl
dnl
dnl Pull in libtool macros
dnl
-m4_include([libtool.m4])
-m4_include([ltoptions.m4])
-m4_include([ltsugar.m4])
-m4_include([ltversion.m4])
-m4_include([lt~obsolete.m4])
+m4_include([m4/libtool.m4])
+m4_include([m4/ltoptions.m4])
+m4_include([m4/ltsugar.m4])
+m4_include([m4/ltversion.m4])
+m4_include([m4/lt~obsolete.m4])
+dnl
+dnl Pull in other non-standard macros
+dnl
+m4_include([m4/ax_check_compile_flag.m4])
+m4_include([m4/ax_check_link_flag.m4])
projects / debian / sudo / blobdiff