diff options
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 000000000000..71f01544d11b --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,138 @@ +dnl @synopsis AX_FUNC_WHICH_GETSPNAM_R +dnl +dnl Determines which historical variant of the getspnam_r() call +dnl (taking four or five arguments) is available on the system +dnl and sets NEW_SHADOW_API=YES if there are five arguments. +dnl +dnl Originally named "AX_FUNC_WHICH_GETHOSTBYNAME_R". Rewritten +dnl for AX_FUNC_WHICH_GETSPNAM_R +dnl +dnl @author Caolan McNamara <caolan@skynet.ie> +dnl @author Daniel Richard G. <skunk@iskunk.org> +dnl @version 2006-05-01 +dnl @license LGPL + +AC_DEFUN([AX_FUNC_WHICH_GETSPNAM_R], [ + + AC_LANG_PUSH(C) + AC_MSG_CHECKING([how many arguments getspnam_r() takes]) + + AC_CACHE_VAL(ac_cv_func_which_getspnam_r, [ + +################################################################ + +ac_cv_func_which_getspnam_r=unknown + +# +# ONE ARGUMENT (sanity check) +# + +# This should fail, as there is no variant of getspnam_r() that takes +# a single argument. If it actually compiles, then we can assume that +# netdb.h is not declaring the function, and the compiler is thereby +# assuming an implicit prototype. In which case, we're out of luck. +# +AC_COMPILE_IFELSE( + AC_LANG_PROGRAM( + [[ + #include <sys/types.h> + #include <shadow.h> + ]], + [[ + const char *name = "myname"; + getspnam_r(name) /* ; */ + ]]), + ac_cv_func_which_getspnam_r=no) + +# +# FIVE ARGUMENTS +# + +if test "$ac_cv_func_which_getspnam_r" = "unknown"; then + +AC_COMPILE_IFELSE( + AC_LANG_PROGRAM( + [[ + #include <sys/types.h> + #include <shadow.h> + ]], + [[ + char buffer[[]] = { '\0' }; + struct spwd spwdStruct; + const char *name = "myname"; + getspnam_r(name, &spwdStruct, buffer, sizeof buffer, 0) /* ; */ + ]]), + ac_cv_func_which_getspnam_r=five) + +fi + +# +# FOUR ARGUMENTS +# + +if test "$ac_cv_func_which_getspnam_r" = "unknown"; then + +AC_COMPILE_IFELSE( + AC_LANG_PROGRAM( + [[ + #include <sys/types.h> + #include <shadow.h> + ]], + [[ + char buffer[[]] = { '\0' }; + struct spwd spwdStruct; + const char *name = "myname"; + getspnam_r(name, &spwdStruct, buffer, sizeof buffer) /* ; */ + ]]), + ac_cv_func_which_getspnam_r=four) + +fi + +################################################################ + +]) dnl end AC_CACHE_VAL + +case "$ac_cv_func_which_getspnam_r" in + five) + AC_MSG_RESULT([five]) + NEW_SHADOW_API=YES + ;; + + four) + AC_MSG_RESULT([four]) + ;; + + no) + AC_MSG_RESULT([cannot find function declaration in shadow.h]) + ;; + + unknown) + AC_MSG_RESULT([can't tell]) + ;; + + *) + AC_MSG_ERROR([internal error]) + ;; +esac + +AC_LANG_POP(C) + +]) dnl end AC_DEFUN + +dnl PKG_CHECK_MODULES_MACHACK is like PKG_CHECK_MODULES but sneaks in an extra +dnl argument between the first and second, denoting a program to call instead of +dnl pkg-config on Mac OS X (aka Darwin): +AC_DEFUN([PKG_CHECK_MODULES_MACHACK], +[if test "$_os" = "Darwin"; then + AC_MSG_CHECKING($1_CFLAGS) + $1_CFLAGS=`$2 --cflags` + AC_MSG_RESULT($$1_CFLAGS) + AC_MSG_CHECKING($1_LIBS) + $1_LIBS=`$2 --libs` + AC_MSG_RESULT($$1_LIBS) + AC_SUBST($1_CFLAGS) + AC_SUBST($1_LIBS) + else + PKG_CHECK_MODULES($1, $3, $4, $5, $6) + fi +]) |